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<div class="title">opennurbs_polycurve.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/* $NoKeywords: $ */</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// Copyright (c) 1993-2012 Robert McNeel &amp; Associates. All rights reserved.</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">// OpenNURBS, Rhinoceros, and Rhino3D are registered trademarks of Robert</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment">// McNeel &amp; Associates.</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment">// THIS SOFTWARE IS PROVIDED &quot;AS IS&quot; WITHOUT EXPRESS OR IMPLIED WARRANTY.</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment">// ALL IMPLIED WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE AND OF</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment">// MERCHANTABILITY ARE HEREBY DISCLAIMED.</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment">// </span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment">// For complete openNURBS copyright information see &lt;http://www.opennurbs.org&gt;.</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment">//</span><span class="comment"></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment">////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"></span>*/</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment">////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment"></span><span class="comment">//</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="comment">// Definition of poly curve (composite curve)</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="comment">//</span><span class="comment"></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="comment">////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#if !defined(OPENNURBS_POLYCURVE_INC_)</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#define OPENNURBS_POLYCURVE_INC_</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="comment"> Description: </span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="comment"> An ON_PolyCurve is an ON_Curve represented by a sequence of </span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="comment"> contiguous ON_Curve segments. A valid polycurve is represented </span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="comment"> by an array m_segment of Count()&gt;=1 curve objects and a strictly</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="comment"> increasing array m_t of Count()+1 parameter values. The i-th </span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="comment"> curve segment, when considered as part of the polycurve, is affinely </span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="comment"> reparamaterized from m_t[i] to m_t[i+1], i.e., m_segment[i].Domain()[0] </span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;<span class="comment"> is mapped to m_t[i] and m_segment[i].Domain()[1] is mapped to m_t[i+1]. </span></div><div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="../../d8/d00/class_o_n___poly_curve.html"> 35</a></span>&#160;<span class="comment">*/</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;<span class="keyword">class </span>ON_CLASS <a class="code" href="../../d8/d00/class_o_n___poly_curve.html">ON_PolyCurve</a> : <span class="keyword">public</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;{</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; ON_OBJECT_DECLARE(<a class="code" href="../../d8/d00/class_o_n___poly_curve.html">ON_PolyCurve</a>);</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <a class="code" href="../../d8/d00/class_o_n___poly_curve.html">ON_PolyCurve</a>() ON_NOEXCEPT;</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="keyword">virtual</span> ~<a class="code" href="../../d8/d00/class_o_n___poly_curve.html">ON_PolyCurve</a>();</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <a class="code" href="../../d8/d00/class_o_n___poly_curve.html">ON_PolyCurve</a>(<span class="keyword">const</span> <a class="code" href="../../d8/d00/class_o_n___poly_curve.html">ON_PolyCurve</a>&amp;);</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <a class="code" href="../../d8/d00/class_o_n___poly_curve.html">ON_PolyCurve</a>&amp; <a class="code" href="../../d4/d5a/class_o_n___curve.html#a91620c97b56aba376a763086efb4f817">operator=</a>(<span class="keyword">const</span> <a class="code" href="../../d8/d00/class_o_n___poly_curve.html">ON_PolyCurve</a>&amp;);</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160;</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;<span class="preprocessor">#if defined(ON_HAS_RVALUEREF)</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <span class="comment">// rvalue copy constructor</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <a class="code" href="../../d8/d00/class_o_n___poly_curve.html">ON_PolyCurve</a>( <a class="code" href="../../d8/d00/class_o_n___poly_curve.html">ON_PolyCurve</a>&amp;&amp; ) ON_NOEXCEPT;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="comment">// The rvalue assignment operator calls ON_Object::operator=(ON_Object&amp;&amp;)</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="comment">// which could throw exceptions. See the implementation of</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="comment">// ON_Object::operator=(ON_Object&amp;&amp;) for details.</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <a class="code" href="../../d8/d00/class_o_n___poly_curve.html">ON_PolyCurve</a>&amp; <a class="code" href="../../d4/d5a/class_o_n___curve.html#a91620c97b56aba376a763086efb4f817">operator=</a>( <a class="code" href="../../d8/d00/class_o_n___poly_curve.html">ON_PolyCurve</a>&amp;&amp; );</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; <span class="comment">// virtual ON_Object::DestroyRuntimeCache override</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <span class="keywordtype">void</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a4ad9a73ad53707fbebfc904e772f605b">DestroyRuntimeCache</a>( <span class="keywordtype">bool</span> bDelete = <span class="keyword">true</span> ) <span class="keyword">override</span>;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <a class="code" href="../../d8/d00/class_o_n___poly_curve.html">ON_PolyCurve</a>( <span class="keywordtype">int</span> ); <span class="comment">// int = initial capacity - use when a good estimate</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; <span class="comment">// of the number of segments is known.</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <span class="keywordtype">void</span> Destroy();</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <span class="keywordtype">void</span> <a class="code" href="../../d9/d7b/class_o_n___object.html#ad265ca0da2d751edaa9d2b5ab2540c6a">EmergencyDestroy</a>(); <span class="comment">// call if memory used by ON_PolyCurve becomes invalid</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <span class="comment"></span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160;<span class="comment"> /////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;<span class="comment"></span> <span class="comment">// ON_Object overrides</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; <span class="comment">// virtual ON_Object::SizeOf override</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#af13b163bb51b3972593f6ccf89d18950">SizeOf</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160;</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="comment">// virtual ON_Object::DataCRC override</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; ON__UINT32 <a class="code" href="../../d9/d7b/class_o_n___object.html#af51d5fcec9379ad9b7a56ac4dfc9a8b2">DataCRC</a>(ON__UINT32 current_remainder) <span class="keyword">const override</span>;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../df/de0/class_o_n___geometry.html#adf87e5ba0d9939dfabbb9f421b9d2b3b">IsValid</a>( <span class="keyword">class</span> <a class="code" href="../../d2/da3/class_o_n___text_log.html">ON_TextLog</a>* text_log = <span class="keyword">nullptr</span> ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160;<span class="comment"> Tests an object to see if its data members are correctly</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160;<span class="comment"> initialized.</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160;<span class="comment"> bAllowGaps - [in]</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;<span class="comment"> If true, gaps are allowed between polycurve segments.</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160;<span class="comment"> If false, gaps are not allowed between polycurve segments.</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;<span class="comment"> text_log - [in] if the object is not valid and text_log</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;<span class="comment"> is not nullptr, then a brief englis description of the</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;<span class="comment"> reason the object is not valid is appened to the log.</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;<span class="comment"> The information appended to text_log is suitable for </span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160;<span class="comment"> low-level debugging purposes by programmers and is </span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160;<span class="comment"> not intended to be useful as a high level user </span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160;<span class="comment"> interface tool.</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;<span class="comment"> @untitled table</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;<span class="comment"> true object is valid</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160;<span class="comment"> false object is invalid, uninitialized, etc.</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;<span class="comment"> Overrides virtual ON_Object::IsValid</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../df/de0/class_o_n___geometry.html#adf87e5ba0d9939dfabbb9f421b9d2b3b">IsValid</a>( <span class="keywordtype">bool</span> bAllowGaps, <a class="code" href="../../d2/da3/class_o_n___text_log.html">ON_TextLog</a>* text_log ) <span class="keyword">const</span>;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160;</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; <span class="keywordtype">void</span> <a class="code" href="../../d9/d7b/class_o_n___object.html#a21c7b04a80f1806c3a45f72d7c491a44">Dump</a>( <a class="code" href="../../d2/da3/class_o_n___text_log.html">ON_TextLog</a>&amp; ) <span class="keyword">const override</span>; <span class="comment">// for debugging</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d9/d7b/class_o_n___object.html#a16eb9ab6bf0d0a614655cf9cd055871a">Write</a>(</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <a class="code" href="../../db/d16/class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp; <span class="comment">// open binary file</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d9/d7b/class_o_n___object.html#a09ac9742ead91dd8f9cdd579bcbfed10">Read</a>(</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <a class="code" href="../../db/d16/class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp; <span class="comment">// open binary file</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;<span class="comment"> /////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160;<span class="comment"></span> <span class="comment">// ON_Geometry overrides</span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="keywordtype">int</span> <a class="code" href="../../df/de0/class_o_n___geometry.html#a0d66ab16e2fddfd1b3e6cf3d6ebbd364">Dimension</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <span class="comment">// virtual ON_Geometry GetBBox override </span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../df/de0/class_o_n___geometry.html#ad615e08fe92af659c8d10cbb4f8fc5e3">GetBBox</a>( <span class="keywordtype">double</span>* boxmin, <span class="keywordtype">double</span>* boxmax, <span class="keywordtype">bool</span> bGrowBox = <span class="keyword">false</span> ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <span class="comment">// virtual ON_Geometry GetTightBoundingBox override </span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a07da6630700d2c2ce04f0bc3178b02b0">GetTightBoundingBox</a>( <span class="keyword">class</span> <a class="code" href="../../d1/d17/class_o_n___bounding_box.html">ON_BoundingBox</a>&amp; tight_bbox, <span class="keywordtype">bool</span> bGrowBox = <span class="keyword">false</span>, <span class="keyword">const</span> <span class="keyword">class</span> <a class="code" href="../../d3/d13/class_o_n___xform.html">ON_Xform</a>* xform = <span class="keyword">nullptr</span> ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a9f59373850214fc53a6c793596aece78">Transform</a>( </div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="keyword">const</span> <a class="code" href="../../d3/d13/class_o_n___xform.html">ON_Xform</a>&amp;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; <span class="comment">// virtual ON_Geometry::IsDeformable() override</span></div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../df/de0/class_o_n___geometry.html#af156cd098b9e68fab5f32e76b1e274e2">IsDeformable</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160;</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <span class="comment">// virtual ON_Geometry::MakeDeformable() override</span></div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../df/de0/class_o_n___geometry.html#ac3d5cb708edca66a4a6c1992299329a3">MakeDeformable</a>() <span class="keyword">override</span>;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160;</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../df/de0/class_o_n___geometry.html#a737d7b1433104a39298629931e899cd4">SwapCoordinates</a>(</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <span class="keywordtype">int</span>, <span class="keywordtype">int</span> <span class="comment">// indices of coords to swap</span></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160;</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160;</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; <span class="comment">// virtual ON_Geometry override</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ad625501436509ff71c9fa21778ad2459">EvaluatePoint</a>( <span class="keyword">const</span> <span class="keyword">class</span> <a class="code" href="../../d3/d80/class_o_n___obj_ref.html">ON_ObjRef</a>&amp; objref, <a class="code" href="../../d2/d35/class_o_n__3d_point.html">ON_3dPoint</a>&amp; P ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160;<span class="comment"> /////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160;<span class="comment"></span> <span class="comment">// ON_Curve overrides</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* <a class="code" href="../../d4/d5a/class_o_n___curve.html#ab1b9d5f72971851b4790f4f47d51a846">DuplicateCurve</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ae3a1e3ea7c924246a43754aa03790432">Domain</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160;</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <span class="comment">// Description:</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="comment">// virtual ON_Curve::SetDomain override.</span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="comment">// Set the domain of the curve</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="comment">// Parameters:</span></div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="comment">// t0 - [in]</span></div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="comment">// t1 - [in] new domain will be [t0,t1]</span></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <span class="comment">// Returns:</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; <span class="comment">// true if successful.</span></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ac8dc771e7ebcfac85baf26c7e6b21c70">SetDomain</a>(</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; <span class="keywordtype">double</span> t0, </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <span class="keywordtype">double</span> t1 </div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#abd112f88c48651e238649201743bc692">ChangeDimension</a>(</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; <span class="keywordtype">int</span> desired_dimension</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160;<span class="comment"> If this curve is closed, then modify it so that</span></div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160;<span class="comment"> the start/end point is at curve parameter t.</span></div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160;<span class="comment"> t - [in] curve parameter of new start/end point. The</span></div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160;<span class="comment"> returned curves domain will start at t.</span></div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160;<span class="comment"> true if successful.</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160;<span class="comment"> Overrides virtual ON_Curve::ChangeClosedCurveSeam</span></div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#aadf0546a6f3b286a670217caf0abbd7b">ChangeClosedCurveSeam</a>( </div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; <span class="keywordtype">double</span> t </div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; <span class="keywordtype">int</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ad162b90ba333e4f3dd5b13823e1b5f27">SpanCount</a>() <span class="keyword">const override</span>; <span class="comment">// number of smooth spans in curve</span></div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ae619c78b795518c251c5ac32d34d568f">GetSpanVector</a>( <span class="comment">// span &quot;knots&quot; </span></div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; <span class="keywordtype">double</span>* <span class="comment">// array of length SpanCount() + 1 </span></div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; ) <span class="keyword">const override</span>; <span class="comment">// </span></div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160;</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; <span class="keywordtype">int</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a3c1b90bd24333d58d584016e3b40225d">Degree</a>( <span class="comment">// returns maximum algebraic degree of any span </span></div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; <span class="comment">// ( or a good estimate if curve spans are not algebraic )</span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; ) <span class="keyword">const override</span>; </div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160;</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a325716a9735ab59416bf6800a23ce5fc">IsLinear</a>( <span class="comment">// true if curve locus is a line segment between</span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <span class="comment">// between specified points</span></div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; <span class="keywordtype">double</span> = ON_ZERO_TOLERANCE <span class="comment">// tolerance to use when checking linearity</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160;</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160;<span class="comment"> Several types of ON_Curve can have the form of a polyline including</span></div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160;<span class="comment"> a degree 1 ON_NurbsCurve, an ON_PolylineCurve, and an ON_PolyCurve</span></div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160;<span class="comment"> all of whose segments are some form of polyline. IsPolyline tests</span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160;<span class="comment"> a curve to see if it can be represented as a polyline.</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160;<span class="comment"> pline_points - [out] if not nullptr and true is returned, then the</span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160;<span class="comment"> points of the polyline form are returned here.</span></div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160;<span class="comment"> t - [out] if not nullptr and true is returned, then the parameters of</span></div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160;<span class="comment"> the polyline points are returned here.</span></div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160;<span class="comment"> @untitled table</span></div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160;<span class="comment"> 0 curve is not some form of a polyline</span></div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160;<span class="comment"> &gt;=2 number of points in polyline form</span></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; <span class="keywordtype">int</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a467d9a30eb67c198df47da3abc1a87cd">IsPolyline</a>(</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; <a class="code" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray&lt;ON_3dPoint&gt;</a>* pline_points = <span class="keyword">nullptr</span>,</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; <a class="code" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray&lt;double&gt;</a>* pline_t = <span class="keyword">nullptr</span></div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160;</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#adb5f04bc1eb13842d60c7c9778740ca8">IsArc</a>( <span class="comment">// ON_Arc.m_angle &gt; 0 if curve locus is an arc between</span></div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; <span class="comment">// specified points</span></div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; <span class="keyword">const</span> <a class="code" href="../../d4/d48/class_o_n___plane.html">ON_Plane</a>* = <span class="keyword">nullptr</span>, <span class="comment">// if not nullptr, test is performed in this plane</span></div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; <a class="code" href="../../d3/ddf/class_o_n___arc.html">ON_Arc</a>* = <span class="keyword">nullptr</span>, <span class="comment">// if not nullptr and true is returned, then arc parameters</span></div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; <span class="comment">// are filled in</span></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; <span class="keywordtype">double</span> = ON_ZERO_TOLERANCE <span class="comment">// tolerance to use when checking</span></div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160;</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#aa98dcc86caf6da5cdac543e52d695bd4">IsPlanar</a>(</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160; <a class="code" href="../../d4/d48/class_o_n___plane.html">ON_Plane</a>* = <span class="keyword">nullptr</span>, <span class="comment">// if not nullptr and true is returned, then plane parameters</span></div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; <span class="comment">// are filled in</span></div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; <span class="keywordtype">double</span> = ON_ZERO_TOLERANCE <span class="comment">// tolerance to use when checking</span></div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160;</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a7c480c610e37703041d9eacb502d5ae8">IsInPlane</a>(</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; <span class="keyword">const</span> <a class="code" href="../../d4/d48/class_o_n___plane.html">ON_Plane</a>&amp;, <span class="comment">// plane to test</span></div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; <span class="keywordtype">double</span> = ON_ZERO_TOLERANCE <span class="comment">// tolerance to use when checking</span></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160;</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a8108d949eee27fb0ab7b2b4339df5b7f">IsClosed</a>( <span class="comment">// true if curve is closed (either curve has</span></div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; <span class="keywordtype">void</span> <span class="comment">// clamped end knots and euclidean location of start</span></div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; ) <span class="keyword">const override</span>; <span class="comment">// CV = euclidean location of end CV, or curve is</span></div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; <span class="comment">// periodic.)</span></div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160;</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ad27af42168a1be8f54fff24aed354aab">IsPeriodic</a>( <span class="comment">// true if curve is a single periodic segment</span></div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; <span class="keywordtype">void</span> </div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; </div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160;<span class="comment"> Search for a derivatitive, tangent, or curvature discontinuity.</span></div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160;<span class="comment"> c - [in] type of continity to test for. If ON::continuity::C1_continuous</span></div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160;<span class="comment"> t0 - [in] search begins at t0</span></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160;<span class="comment"> t1 - [in] (t0 &lt; t1) search ends at t1</span></div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160;<span class="comment"> t - [out] if a discontinuity is found, the *t reports the</span></div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160;<span class="comment"> parameter at the discontinuity.</span></div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160;<span class="comment"> hint - [in/out] if GetNextDiscontinuity will be called repeatedly,</span></div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160;<span class="comment"> passing a &quot;hint&quot; with initial value *hint=0 will increase the speed</span></div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160;<span class="comment"> of the search. </span></div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160;<span class="comment"> dtype - [out] if not nullptr, *dtype reports the kind of discontinuity</span></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160;<span class="comment"> found at *t. A value of 1 means the first derivative or unit tangent</span></div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160;<span class="comment"> was discontinuous. A value of 2 means the second derivative or</span></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160;<span class="comment"> curvature was discontinuous.</span></div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160;<span class="comment"> cos_angle_tolerance - [in] default = cos(1 degree) Used only when</span></div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160;<span class="comment"> c is ON::continuity::G1_continuous or ON::continuity::G2_continuous. If the cosine</span></div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160;<span class="comment"> of the angle between two tangent vectors </span></div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160;<span class="comment"> is &lt;= cos_angle_tolerance, then a G1 discontinuity is reported.</span></div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160;<span class="comment"> curvature_tolerance - [in] (default = ON_SQRT_EPSILON) Used only when</span></div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160;<span class="comment"> c is ON::continuity::G2_continuous or ON::continuity::Gsmooth_continuous. </span></div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160;<span class="comment"> ON::continuity::G2_continuous:</span></div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160;<span class="comment"> If K0 and K1 are curvatures evaluated</span></div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160;<span class="comment"> from above and below and |K0 - K1| &gt; curvature_tolerance,</span></div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160;<span class="comment"> then a curvature discontinuity is reported.</span></div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160;<span class="comment"> ON::continuity::Gsmooth_continuous:</span></div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160;<span class="comment"> If K0 and K1 are curvatures evaluated from above and below</span></div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160;<span class="comment"> and the angle between K0 and K1 is at least twice angle tolerance</span></div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160;<span class="comment"> or ||K0| - |K1|| &gt; (max(|K0|,|K1|) &gt; curvature_tolerance,</span></div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160;<span class="comment"> then a curvature discontinuity is reported.</span></div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160;<span class="comment"> true if a discontinuity was found on the interior of the interval (t0,t1).</span></div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160;<span class="comment"> Overrides ON_Curve::GetNextDiscontinuity.</span></div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a2deaf514586ac4b16daa45a97d4bd8e1">GetNextDiscontinuity</a>( </div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; ON::continuity c,</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; <span class="keywordtype">double</span> t0,</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; <span class="keywordtype">double</span> t1,</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; <span class="keywordtype">double</span>* t,</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; <span class="keywordtype">int</span>* hint=<span class="keyword">nullptr</span>,</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160; <span class="keywordtype">int</span>* dtype=<span class="keyword">nullptr</span>,</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; <span class="keywordtype">double</span> cos_angle_tolerance=ON_DEFAULT_ANGLE_TOLERANCE_COSINE,</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160; <span class="keywordtype">double</span> curvature_tolerance=ON_SQRT_EPSILON</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160;</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160;<span class="comment"> Test continuity at a curve parameter value.</span></div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160;<span class="comment"> c - [in] continuity to test for</span></div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160;<span class="comment"> t - [in] parameter to test</span></div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160;<span class="comment"> hint - [in] evaluation hint</span></div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160;<span class="comment"> point_tolerance - [in] if the distance between two points is</span></div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160;<span class="comment"> greater than point_tolerance, then the curve is not C0.</span></div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160;<span class="comment"> d1_tolerance - [in] if the difference between two first derivatives is</span></div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160;<span class="comment"> greater than d1_tolerance, then the curve is not C1.</span></div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160;<span class="comment"> d2_tolerance - [in] if the difference between two second derivatives is</span></div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160;<span class="comment"> greater than d2_tolerance, then the curve is not C2.</span></div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160;<span class="comment"> cos_angle_tolerance - [in] default = cos(1 degree) Used only when</span></div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160;<span class="comment"> c is ON::continuity::G1_continuous or ON::continuity::G2_continuous. If the cosine</span></div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160;<span class="comment"> of the angle between two tangent vectors </span></div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160;<span class="comment"> is &lt;= cos_angle_tolerance, then a G1 discontinuity is reported.</span></div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160;<span class="comment"> curvature_tolerance - [in] (default = ON_SQRT_EPSILON) Used only when</span></div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160;<span class="comment"> c is ON::continuity::G2_continuous or ON::continuity::Gsmooth_continuous. </span></div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160;<span class="comment"> ON::continuity::G2_continuous:</span></div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160;<span class="comment"> If K0 and K1 are curvatures evaluated</span></div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160;<span class="comment"> from above and below and |K0 - K1| &gt; curvature_tolerance,</span></div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160;<span class="comment"> then a curvature discontinuity is reported.</span></div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160;<span class="comment"> ON::continuity::Gsmooth_continuous:</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160;<span class="comment"> If K0 and K1 are curvatures evaluated from above and below</span></div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160;<span class="comment"> and the angle between K0 and K1 is at least twice angle tolerance</span></div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160;<span class="comment"> or ||K0| - |K1|| &gt; (max(|K0|,|K1|) &gt; curvature_tolerance,</span></div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160;<span class="comment"> then a curvature discontinuity is reported.</span></div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160;<span class="comment"> true if the curve has at least the c type continuity at the parameter t.</span></div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160;<span class="comment"> Overrides ON_Curve::IsContinuous.</span></div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ac0a69004a8792a80abb7c9ee19f98f6a">IsContinuous</a>(</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160; ON::continuity c,</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160; <span class="keywordtype">double</span> t, </div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160; <span class="keywordtype">int</span>* hint = <span class="keyword">nullptr</span>,</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160; <span class="keywordtype">double</span> point_tolerance=ON_ZERO_TOLERANCE,</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160; <span class="keywordtype">double</span> d1_tolerance=ON_ZERO_TOLERANCE,</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160; <span class="keywordtype">double</span> d2_tolerance=ON_ZERO_TOLERANCE,</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160; <span class="keywordtype">double</span> cos_angle_tolerance=ON_DEFAULT_ANGLE_TOLERANCE_COSINE,</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160; <span class="keywordtype">double</span> curvature_tolerance=ON_SQRT_EPSILON</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>&#160;</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a506b1c3a2ad743b87d5a4085fe3d0b1a">Reverse</a>() <span class="keyword">override</span>; <span class="comment">// reverse parameterizatrion</span></div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160; <span class="comment">// Domain changes from [a,b] to [-b,-a]</span></div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>&#160;</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>&#160;<span class="comment"> Force the curve to start at a specified point.</span></div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>&#160;<span class="comment"> start_point - [in]</span></div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>&#160;<span class="comment"> true if successful.</span></div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>&#160;<span class="comment"> Some start points cannot be moved. Be sure to check return</span></div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>&#160;<span class="comment"> code.</span></div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>&#160;<span class="comment"> See Also:</span></div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>&#160;<span class="comment"> ON_Curve::SetEndPoint</span></div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>&#160;<span class="comment"> ON_Curve::PointAtStart</span></div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>&#160;<span class="comment"> ON_Curve::PointAtEnd</span></div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>&#160; <span class="comment">// virtual</span></div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ab6db85b7bd367cab86201db1a6b5a1b5">SetStartPoint</a>(</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>&#160; <a class="code" href="../../d2/d35/class_o_n__3d_point.html">ON_3dPoint</a> start_point</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>&#160;</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>&#160;<span class="comment"> Force the curve to end at a specified point.</span></div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>&#160;<span class="comment"> end_point - [in]</span></div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>&#160;<span class="comment"> true if successful.</span></div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>&#160;<span class="comment"> Some end points cannot be moved. Be sure to check return</span></div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>&#160;<span class="comment"> code.</span></div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>&#160;<span class="comment"> See Also:</span></div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>&#160;<span class="comment"> ON_Curve::SetStartPoint</span></div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>&#160;<span class="comment"> ON_Curve::PointAtStart</span></div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>&#160;<span class="comment"> ON_Curve::PointAtEnd</span></div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>&#160; <span class="comment">//virtual</span></div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a96e8ee83e56e84c16a14637fe48a42ee">SetEndPoint</a>(</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>&#160; <a class="code" href="../../d2/d35/class_o_n__3d_point.html">ON_3dPoint</a> end_point</div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>&#160;</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#acb8caa121873abcf53f050a8953a70bb">Evaluate</a>( <span class="comment">// returns false if unable to evaluate</span></div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>&#160; <span class="keywordtype">double</span>, <span class="comment">// evaluation parameter</span></div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>&#160; <span class="keywordtype">int</span>, <span class="comment">// number of derivatives (&gt;=0)</span></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>&#160; <span class="keywordtype">int</span>, <span class="comment">// array stride (&gt;=Dimension())</span></div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>&#160; <span class="keywordtype">double</span>*, <span class="comment">// array of length stride*(ndir+1)</span></div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>&#160; <span class="keywordtype">int</span> = 0, <span class="comment">// optional - determines which side to evaluate from</span></div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>&#160; <span class="comment">// 0 = default</span></div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>&#160; <span class="comment">// &lt; 0 to evaluate from below, </span></div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>&#160; <span class="comment">// &gt; 0 to evaluate from above</span></div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>&#160; <span class="keywordtype">int</span>* = 0 <span class="comment">// optional - evaluation hint (int) used to speed</span></div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>&#160; <span class="comment">// repeated evaluations</span></div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>&#160;</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>&#160;</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>&#160; <span class="comment">// Description:</span></div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>&#160; <span class="comment">// virtual ON_Curve::Trim override.</span></div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>&#160; <span class="comment">// Removes portions of the curve outside the specified interval.</span></div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>&#160; <span class="comment">// Parameters:</span></div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>&#160; <span class="comment">// domain - [in] interval of the curve to keep. Portions of the</span></div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>&#160; <span class="comment">// curve before curve(domain[0]) and after curve(domain[1]) are</span></div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>&#160; <span class="comment">// removed.</span></div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>&#160; <span class="comment">// Returns:</span></div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>&#160; <span class="comment">// true if successful.</span></div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#abd583766fdcd75cc269e87aeab40c4a7">Trim</a>(</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>&#160; <span class="keyword">const</span> <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a>&amp; domain</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>&#160;</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>&#160; <span class="comment">// Description:</span></div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>&#160; <span class="comment">// Where possible, analytically extends curve to include domain.</span></div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>&#160; <span class="comment">// Parameters:</span></div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>&#160; <span class="comment">// domain - [in] if domain is not included in curve domain, </span></div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>&#160; <span class="comment">// curve will be extended so that its domain includes domain. </span></div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>&#160; <span class="comment">// Will not work if curve is closed. Original curve is identical</span></div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>&#160; <span class="comment">// to the restriction of the resulting curve to the original curve domain, </span></div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>&#160; <span class="comment">// Returns:</span></div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>&#160; <span class="comment">// true if successful.</span></div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ad590804af708aa05f56c27b6b3982ef7">Extend</a>(</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>&#160; <span class="keyword">const</span> <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a>&amp; domain</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>&#160;</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span>&#160; <span class="comment">// Description:</span></div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>&#160; <span class="comment">// virtual ON_Curve::Split override.</span></div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span>&#160; <span class="comment">// Divide the curve at the specified parameter. The parameter</span></div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>&#160; <span class="comment">// must be in the interior of the curve&#39;s domain. The pointers</span></div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>&#160; <span class="comment">// passed to Split must either be nullptr or point to an ON_Curve</span></div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>&#160; <span class="comment">// object of the same of the same type. If the pointer is nullptr,</span></div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>&#160; <span class="comment">// then a curve will be created in Split(). You may pass &quot;this&quot;</span></div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>&#160; <span class="comment">// as one of the pointers to Split().</span></div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>&#160; <span class="comment">// Parameters:</span></div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>&#160; <span class="comment">// t - [in] parameter in interval Domain().</span></div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>&#160; <span class="comment">// left_side - [out] left portion of curve</span></div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>&#160; <span class="comment">// right_side - [out] right portion of curve</span></div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>&#160; <span class="comment">// Example:</span></div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>&#160; <span class="comment">// For example, if crv were an ON_NurbsCurve, then</span></div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>&#160; <span class="comment">//</span></div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>&#160; <span class="comment">// ON_NurbsCurve right_side;</span></div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>&#160; <span class="comment">// crv.Split( crv.Domain().Mid() &amp;crv, &amp;right_side );</span></div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>&#160; <span class="comment">//</span></div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>&#160; <span class="comment">// would split crv at the parametric midpoint, put the left side</span></div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>&#160; <span class="comment">// in crv, and return the right side in right_side.</span></div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a2d6c16e8ddfe8f2cde8c4431db67a337">Split</a>(</div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>&#160; <span class="keywordtype">double</span> t, <span class="comment">// t = curve parameter to split curve at</span></div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>*&amp; left_side, <span class="comment">// left portion returned here</span></div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>*&amp; right_side <span class="comment">// right portion returned here</span></div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>&#160;</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>&#160; <span class="keywordtype">int</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a67dd944c24cda3d319fa5ac73bb95c2e">GetNurbForm</a>( <span class="comment">// returns 0: unable to create NURBS representation</span></div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>&#160; <span class="comment">// with desired accuracy.</span></div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>&#160; <span class="comment">// 1: success - returned NURBS parameterization</span></div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>&#160; <span class="comment">// matches the curve&#39;s to wthe desired accuracy</span></div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>&#160; <span class="comment">// 2: success - returned NURBS point locus matches</span></div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>&#160; <span class="comment">// the curve&#39;s to the desired accuracy but, on</span></div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>&#160; <span class="comment">// the interior of the curve&#39;s domain, the </span></div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>&#160; <span class="comment">// curve&#39;s parameterization and the NURBS</span></div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>&#160; <span class="comment">// parameterization may not match to the </span></div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>&#160; <span class="comment">// desired accuracy.</span></div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span>&#160; <a class="code" href="../../d3/d6a/class_o_n___nurbs_curve.html">ON_NurbsCurve</a>&amp;,</div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span>&#160; <span class="keywordtype">double</span> = 0.0,</div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>&#160; <span class="keyword">const</span> <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a>* = <span class="keyword">nullptr</span> <span class="comment">// OPTIONAL subdomain of polycurve</span></div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>&#160;</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>&#160; <span class="keywordtype">int</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a25f556492601b4e679e8416cee60c529">HasNurbForm</a>( <span class="comment">// returns 0: unable to create NURBS representation</span></div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span>&#160; <span class="comment">// with desired accuracy.</span></div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>&#160; <span class="comment">// 1: success - returned NURBS parameterization</span></div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>&#160; <span class="comment">// matches the curve&#39;s to wthe desired accuracy</span></div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>&#160; <span class="comment">// 2: success - returned NURBS point locus matches</span></div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>&#160; <span class="comment">// the curve&#39;s to the desired accuracy but, on</span></div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>&#160; <span class="comment">// the interior of the curve&#39;s domain, the </span></div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>&#160; <span class="comment">// curve&#39;s parameterization and the NURBS</span></div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>&#160; <span class="comment">// parameterization may not match to the </span></div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>&#160; <span class="comment">// desired accuracy.</span></div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>&#160;</div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>&#160; <span class="comment">// virtual ON_Curve::GetCurveParameterFromNurbFormParameter override</span></div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ad64be6b1a263a59bfc740199d6de8ace">GetCurveParameterFromNurbFormParameter</a>(</div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>&#160; <span class="keywordtype">double</span>, <span class="comment">// nurbs_t</span></div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>&#160; <span class="keywordtype">double</span>* <span class="comment">// curve_t</span></div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>&#160;</div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>&#160; <span class="comment">// virtual ON_Curve::GetNurbFormParameterFromCurveParameter override</span></div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ae3ed534f071a515ea5270acf2a04e6e7">GetNurbFormParameterFromCurveParameter</a>(</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>&#160; <span class="keywordtype">double</span>, <span class="comment">// curve_t</span></div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>&#160; <span class="keywordtype">double</span>* <span class="comment">// nurbs_t</span></div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>&#160;<span class="comment"> /////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>&#160;<span class="comment"></span> <span class="comment">// Interface</span></div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span>&#160;</div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>&#160; <span class="keywordtype">int</span> Count() <span class="keyword">const</span>; <span class="comment">// number of segment curves</span></div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>&#160;</div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>&#160; <span class="comment">// These operator[] functions return nullptr if index is out of range</span></div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* operator[](<span class="keywordtype">int</span>) <span class="keyword">const</span>;</div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>&#160;</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>&#160;<span class="comment"> Returns a pointer to a segment curve.</span></div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span>&#160;<span class="comment"> segment_index - [in] 0 based index (0 &lt;= segment_index &lt; Count() )</span></div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>&#160;<span class="comment"> A pointer to the segment curve. Returns nullptr if segment_index &lt; 0</span></div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span>&#160;<span class="comment"> or segment_index &gt;= Count().</span></div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* SegmentCurve(</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span>&#160; <span class="keywordtype">int</span> segment_index</div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span>&#160; ) <span class="keyword">const</span>;</div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>&#160;</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span>&#160;<span class="comment"> Converts a polycurve parameter to a segment curve parameter.</span></div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span>&#160;<span class="comment"> polycurve_parameter - [in] </span></div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span>&#160;<span class="comment"> Segment curve evaluation parameter or ON_UNSET_VALUE if the</span></div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span>&#160;<span class="comment"> segment curve parameter cannot be computed.</span></div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>&#160;<span class="comment"> See Also:</span></div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span>&#160;<span class="comment"> ON_PolyCurve::PolyCurveParameter</span></div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span>&#160; <span class="keywordtype">double</span> SegmentCurveParameter(</div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span>&#160; <span class="keywordtype">double</span> polycurve_parameter</div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span>&#160; ) <span class="keyword">const</span>;</div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span>&#160;</div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span>&#160;<span class="comment"> Converts a segment curve parameter to a polycurve parameter.</span></div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span>&#160;<span class="comment"> segment_index - [in]</span></div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>&#160;<span class="comment"> segmentcurve_parameter - [in] </span></div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span>&#160;<span class="comment"> Polycurve evaluation parameter or ON_UNSET_VALUE if the</span></div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span>&#160;<span class="comment"> polycurve curve parameter cannot be computed.</span></div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span>&#160;<span class="comment"> See Also:</span></div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span>&#160;<span class="comment"> ON_PolyCurve::SegmentCurveParameter</span></div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span>&#160; <span class="keywordtype">double</span> PolyCurveParameter(</div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>&#160; <span class="keywordtype">int</span> segment_index,</div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span>&#160; <span class="keywordtype">double</span> segmentcurve_parameter</div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span>&#160; ) <span class="keyword">const</span>;</div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span>&#160;</div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span>&#160;<span class="comment"> Returns the polycurve subdomain assigned to a segment curve.</span></div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span>&#160;<span class="comment"> segment_index - [in] 0 based index (0 &lt;= segment_index &lt; Count() )</span></div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span>&#160;<span class="comment"> The polycurve subdomain assigned to a segment curve.</span></div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span>&#160;<span class="comment"> Returns ([ON_UNSET_VALUE,ON_UNSET_VALUE) if segment_index &lt; 0 </span></div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span>&#160;<span class="comment"> or segment_index &gt;= Count().</span></div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span>&#160; <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a> SegmentDomain( </div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span>&#160; <span class="keywordtype">int</span> segment_index</div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span>&#160; ) <span class="keyword">const</span>;</div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span>&#160;</div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span>&#160;<span class="comment"> Find the segment used for evaluation at polycurve_parameter.</span></div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span>&#160;<span class="comment"> polycurve_parameter - [in]</span></div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span>&#160;<span class="comment"> index of the segment used for evaluation at polycurve_parameter.</span></div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span>&#160;<span class="comment"> If polycurve_parameter &lt; Domain.Min(), then 0 is returned.</span></div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span>&#160;<span class="comment"> If polycurve_parameter &gt; Domain.Max(), then Count()-1 is returned.</span></div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span>&#160; <span class="keywordtype">int</span> SegmentIndex(</div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span>&#160; <span class="keywordtype">double</span> polycurve_parameter</div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span>&#160; ) <span class="keyword">const</span>;</div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span>&#160;</div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>&#160;<span class="comment"> Find the segments with support on sub_domain.</span></div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span>&#160;<span class="comment"> sub_domain - [in] increasing interval</span></div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span>&#160;<span class="comment"> segment_index0 - [out] </span></div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span>&#160;<span class="comment"> segment_index1 - [out] segments with index i where</span></div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span>&#160;<span class="comment"> *segment_index0 &lt;= i &lt; *segment_index1 are the segments</span></div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span>&#160;<span class="comment"> with support on the sub_domain</span></div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span>&#160;<span class="comment"> number of segments with support on sub_domain.</span></div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span>&#160; <span class="keywordtype">int</span> SegmentIndex(</div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span>&#160; <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a> sub_domain,</div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span>&#160; <span class="keywordtype">int</span>* segment_index0,</div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span>&#160; <span class="keywordtype">int</span>* segment_index1</div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span>&#160; ) <span class="keyword">const</span>;</div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span>&#160;</div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* FirstSegmentCurve() <span class="keyword">const</span>; <span class="comment">// returns nullptr if count = 0</span></div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span>&#160;</div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* LastSegmentCurve() <span class="keyword">const</span>; <span class="comment">// returns nullptr if count = 0</span></div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span>&#160;</div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span>&#160;<span class="comment"> Search the curve for gaps between the sub curve segments. </span></div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span>&#160;<span class="comment"> segment_index0 - [in]</span></div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span>&#160;<span class="comment"> The search for gaps starts at with the comparing</span></div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span>&#160;<span class="comment"> the end of segment[segment_index0] and the start of</span></div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span>&#160;<span class="comment"> segment[segment_index0+1].</span></div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span>&#160;<span class="comment"> 0: </span></div><div class="line"><a name="l00601"></a><span class="lineno"> 601</span>&#160;<span class="comment"> No gaps were found.</span></div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span>&#160;<span class="comment"> i &gt; segment_index0:</span></div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span>&#160;<span class="comment"> The end of polycuve segment[i-1] is not coincident</span></div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span>&#160;<span class="comment"> with the start of polycurve segment[i].</span></div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span>&#160; <span class="keywordtype">int</span> FindNextGap( <span class="keywordtype">int</span> segment_index0 ) <span class="keyword">const</span>;</div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span>&#160;</div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00609"></a><span class="lineno"> 609</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span>&#160;<span class="comment"> Determine if there is a gap between the end of </span></div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span>&#160;<span class="comment"> segment[segment_index] and the start of segment[segment_index+1].</span></div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span>&#160;<span class="comment"> segment_index - [in]</span></div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span>&#160;<span class="comment"> &gt;= 0</span></div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span>&#160;<span class="comment"> true: </span></div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span>&#160;<span class="comment"> segment_index was valid and there is a gap between</span></div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span>&#160;<span class="comment"> the end of segment[segment_index] and the start of</span></div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span>&#160;<span class="comment"> segment[segment_index+1].</span></div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span>&#160; <span class="keywordtype">bool</span> HasGapAt( <span class="keywordtype">int</span> segment_index ) <span class="keyword">const</span>;</div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span>&#160; </div><div class="line"><a name="l00623"></a><span class="lineno"> 623</span>&#160; ON_DEPRECATED_MSG(<span class="stringliteral">&quot;Replace calls to HasGap() with FindNextGap(0)&quot;</span>)</div><div class="line"><a name="l00624"></a><span class="lineno"> 624</span>&#160; <span class="keywordtype">int</span> HasGap() <span class="keyword">const</span>;</div><div class="line"><a name="l00625"></a><span class="lineno"> 625</span>&#160;</div><div class="line"><a name="l00626"></a><span class="lineno"> 626</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span>&#160;<span class="comment"> Modify the one or both locations at the end of </span></div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span>&#160;<span class="comment"> segment[gap_index-1] and the start of segment[gap_index]</span></div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span>&#160;<span class="comment"> so they are coindicent. </span></div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span>&#160;<span class="comment"> gap_index - [in] 1 &lt;= gap_index &lt; Count()</span></div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span>&#160;<span class="comment"> If the locations at the end of segment[gap_index-1] and </span></div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span>&#160;<span class="comment"> the start of segment[gap_index] are not identical, then</span></div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span>&#160;<span class="comment"> an attempt is made to modify the segments so these</span></div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span>&#160;<span class="comment"> locations are closer.</span></div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span>&#160;<span class="comment"> ends_to_modify - [in]</span></div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span>&#160;<span class="comment"> 0: (suggested)</span></div><div class="line"><a name="l00639"></a><span class="lineno"> 639</span>&#160;<span class="comment"> The code will decide what segments to modify.</span></div><div class="line"><a name="l00640"></a><span class="lineno"> 640</span>&#160;<span class="comment"> 1: </span></div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span>&#160;<span class="comment"> modify the end location of segment[gap_index-1]</span></div><div class="line"><a name="l00642"></a><span class="lineno"> 642</span>&#160;<span class="comment"> 2:</span></div><div class="line"><a name="l00643"></a><span class="lineno"> 643</span>&#160;<span class="comment"> modify the start location of segment[gap_index]</span></div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span>&#160;<span class="comment"> True if a modification was performed and HasGap(gap_index-1)</span></div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span>&#160;<span class="comment"> returns 0 after the modification.</span></div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span>&#160;<span class="comment"> False if no modification was preformed because there</span></div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span>&#160;<span class="comment"> was no gap or because one could not be performed.</span></div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span>&#160;<span class="comment"> Note that passing the return value from FindNextGap() will </span></div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span>&#160;<span class="comment"> close the gap found by FindNextGap().</span></div><div class="line"><a name="l00652"></a><span class="lineno"> 652</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00653"></a><span class="lineno"> 653</span>&#160; <span class="keywordtype">bool</span> CloseGap( <span class="keywordtype">int</span> gap_index, <span class="keywordtype">int</span> segments_to_modify );</div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span>&#160;</div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span>&#160;<span class="comment"> Searches for and closes all gaps that can be found.</span></div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span>&#160;<span class="comment"> Number of gaps that were closed.</span></div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span>&#160; <span class="keywordtype">int</span> CloseGaps();</div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span>&#160;</div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span>&#160; <span class="keywordtype">void</span> Reserve( <span class="keywordtype">int</span> ); <span class="comment">// make sure capacity is at least the specified count</span></div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span>&#160;</div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span>&#160; <span class="comment">// ON_Curve pointers added with Prepend(), Append(), PrependAndMatch(), AppendANdMatch(),and Insert() are deleted</span></div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span>&#160; <span class="comment">// by ~ON_PolyCurve(). Use ON_CurveProxy( ON_Curve*) if you want</span></div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span>&#160; <span class="comment">// the original curve segment to survive ~ON_PolyCurve().</span></div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span>&#160; <span class="keywordtype">bool</span> Prepend( <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* ); <span class="comment">// Prepend curve.</span></div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span>&#160; <span class="keywordtype">bool</span> Append( <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* ); <span class="comment">// Append curve.</span></div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span>&#160; <span class="keywordtype">bool</span> Insert( </div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span>&#160; <span class="keywordtype">int</span>, <span class="comment">// segment_index,</span></div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>*</div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span>&#160; );</div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span>&#160;</div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span>&#160; <span class="comment">//PrependAndMatch() and AppendAndMatch() return false if this-&gt;IsCLosed() or </span></div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span>&#160; <span class="comment">//this-&gt;Count() &gt; 0 and curve is closed</span></div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span>&#160; <span class="keywordtype">bool</span> PrependAndMatch(<a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>*); <span class="comment">//Prepend and match end of curve to start of polycurve</span></div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span>&#160; <span class="keywordtype">bool</span> AppendAndMatch(<a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>*); <span class="comment">//Append and match start of curve to end of polycurve</span></div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span>&#160;</div><div class="line"><a name="l00680"></a><span class="lineno"> 680</span>&#160; <span class="keywordtype">bool</span> Remove(); <span class="comment">// delete last segment and reduce count by 1</span></div><div class="line"><a name="l00681"></a><span class="lineno"> 681</span>&#160; <span class="keywordtype">bool</span> Remove( <span class="keywordtype">int</span> ); <span class="comment">// delete specified segment and reduce count by 1</span></div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span>&#160;<span class="comment"> //////////</span></div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span>&#160;<span class="comment"></span> <span class="comment">// Use the HarvestSegment() function when you want to prevent a</span></div><div class="line"><a name="l00685"></a><span class="lineno"> 685</span>&#160; <span class="comment">// segment from being destroyed by ~ON_PolyCurve(). HarvestSegment()</span></div><div class="line"><a name="l00686"></a><span class="lineno"> 686</span>&#160; <span class="comment">// replaces the polycurve segment with a nullptr. Count() and parameter</span></div><div class="line"><a name="l00687"></a><span class="lineno"> 687</span>&#160; <span class="comment">// information remains unchanged.</span></div><div class="line"><a name="l00688"></a><span class="lineno"> 688</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* HarvestSegment( <span class="keywordtype">int</span> );</div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span>&#160;</div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00691"></a><span class="lineno"> 691</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00692"></a><span class="lineno"> 692</span>&#160;<span class="comment"> True if a curve in the m_segment[] array is an ON_PolyCurve.</span></div><div class="line"><a name="l00693"></a><span class="lineno"> 693</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00694"></a><span class="lineno"> 694</span>&#160; <span class="keywordtype">bool</span> IsNested() <span class="keyword">const</span>;</div><div class="line"><a name="l00695"></a><span class="lineno"> 695</span>&#160;</div><div class="line"><a name="l00696"></a><span class="lineno"> 696</span>&#160; <span class="comment">/* </span></div><div class="line"><a name="l00697"></a><span class="lineno"> 697</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00698"></a><span class="lineno"> 698</span>&#160;<span class="comment"> Removes the nested of polycurves. The result will have not</span></div><div class="line"><a name="l00699"></a><span class="lineno"> 699</span>&#160;<span class="comment"> have an ON_PolyCurve as a segment but will have identical</span></div><div class="line"><a name="l00700"></a><span class="lineno"> 700</span>&#160;<span class="comment"> locus and parameterization.</span></div><div class="line"><a name="l00701"></a><span class="lineno"> 701</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00702"></a><span class="lineno"> 702</span>&#160;<span class="comment"> True if a nested polycurve was removed. False</span></div><div class="line"><a name="l00703"></a><span class="lineno"> 703</span>&#160;<span class="comment"> if no nested polycurves were found.</span></div><div class="line"><a name="l00704"></a><span class="lineno"> 704</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00705"></a><span class="lineno"> 705</span>&#160; <span class="keywordtype">bool</span> RemoveNesting();</div><div class="line"><a name="l00706"></a><span class="lineno"> 706</span>&#160;</div><div class="line"><a name="l00707"></a><span class="lineno"> 707</span>&#160; ON_DEPRECATED_MSG(<span class="stringliteral">&quot;Use RemoveNesting(). RemoveNestingEx() will be removed in the next release.&quot;</span>)</div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span>&#160; <span class="keywordtype">bool</span> RemoveNestingEx();</div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span>&#160;</div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span>&#160; <span class="comment">/* </span></div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span>&#160;<span class="comment"> True if the domains of the curves in the m_segment[] array exactly</span></div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span>&#160;<span class="comment"> match the domains of the segments specified in the m_t[] array.</span></div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span>&#160;<span class="comment"> Put another way, returns true if SegmentDomain(i) = SegmentCurve(i).Domain()</span></div><div class="line"><a name="l00715"></a><span class="lineno"> 715</span>&#160;<span class="comment"> for every segment index.</span></div><div class="line"><a name="l00716"></a><span class="lineno"> 716</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span>&#160; <span class="keywordtype">bool</span> HasSynchronizedSegmentDomains() <span class="keyword">const</span>;</div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span>&#160;</div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span>&#160; <span class="comment">/* </span></div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span>&#160;<span class="comment"> Sets the domain of the curve int the m_segment[] array to exactly</span></div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span>&#160;<span class="comment"> match the domain defined in the m_t[] array. This is not required,</span></div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span>&#160;<span class="comment"> but can simplify some coding situations.</span></div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span>&#160;<span class="comment"> True if at least one segment was reparameterized. False if no</span></div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span>&#160;<span class="comment"> changes were made.</span></div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span>&#160; <span class="keywordtype">bool</span> SynchronizeSegmentDomains();</div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span>&#160;</div><div class="line"><a name="l00730"></a><span class="lineno"> 730</span>&#160;</div><div class="line"><a name="l00731"></a><span class="lineno"> 731</span>&#160;</div><div class="line"><a name="l00732"></a><span class="lineno"> 732</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00733"></a><span class="lineno"> 733</span>&#160;<span class="comment"> //////////</span></div><div class="line"><a name="l00734"></a><span class="lineno"> 734</span>&#160;<span class="comment"></span> <span class="comment">// Expert user function </span></div><div class="line"><a name="l00735"></a><span class="lineno"> 735</span>&#160; <span class="comment">// Sets the m_segment[index] to crv. </span></div><div class="line"><a name="l00736"></a><span class="lineno"> 736</span>&#160; <span class="keywordtype">void</span> SetSegment(<span class="keywordtype">int</span> index, <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* crv);</div><div class="line"><a name="l00737"></a><span class="lineno"> 737</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00738"></a><span class="lineno"> 738</span>&#160;<span class="comment"> //////////</span></div><div class="line"><a name="l00739"></a><span class="lineno"> 739</span>&#160;<span class="comment"></span> <span class="comment">/*</span></div><div class="line"><a name="l00740"></a><span class="lineno"> 740</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00741"></a><span class="lineno"> 741</span>&#160;<span class="comment"> Expert user function to set the m_t[] array.</span></div><div class="line"><a name="l00742"></a><span class="lineno"> 742</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00743"></a><span class="lineno"> 743</span>&#160;<span class="comment"> t - [in] increasing array of SegmentCount()+1 parameters.</span></div><div class="line"><a name="l00744"></a><span class="lineno"> 744</span>&#160;<span class="comment"> Returns</span></div><div class="line"><a name="l00745"></a><span class="lineno"> 745</span>&#160;<span class="comment"> True if successful.</span></div><div class="line"><a name="l00746"></a><span class="lineno"> 746</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00747"></a><span class="lineno"> 747</span>&#160; <span class="keywordtype">bool</span> SetParameterization( <span class="keyword">const</span> <span class="keywordtype">double</span>* t );</div><div class="line"><a name="l00748"></a><span class="lineno"> 748</span>&#160;</div><div class="line"><a name="l00749"></a><span class="lineno"> 749</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00750"></a><span class="lineno"> 750</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00751"></a><span class="lineno"> 751</span>&#160;<span class="comment"> Lookup a parameter in the m_t array, optionally using a built in snap tolerance to </span></div><div class="line"><a name="l00752"></a><span class="lineno"> 752</span>&#160;<span class="comment"> snap a parameter value to an element of m_t.</span></div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00754"></a><span class="lineno"> 754</span>&#160;<span class="comment"> t - [in] parameter</span></div><div class="line"><a name="l00755"></a><span class="lineno"> 755</span>&#160;<span class="comment"> index -[out] index into m_t such that if the function returns true then t is equal </span></div><div class="line"><a name="l00756"></a><span class="lineno"> 756</span>&#160;<span class="comment"> to, or is within tolerance of m_t[index]. </span></div><div class="line"><a name="l00757"></a><span class="lineno"> 757</span>&#160;<span class="comment"> if function returns false then the value of index is</span></div><div class="line"><a name="l00758"></a><span class="lineno"> 758</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00759"></a><span class="lineno"> 759</span>&#160;<span class="comment"> @table </span></div><div class="line"><a name="l00760"></a><span class="lineno"> 760</span>&#160;<span class="comment"> condition value of index</span></div><div class="line"><a name="l00761"></a><span class="lineno"> 761</span>&#160;<span class="comment"> t&lt;m_t[0] or m_t is empty -1</span></div><div class="line"><a name="l00762"></a><span class="lineno"> 762</span>&#160;<span class="comment"> m_t[i] &lt; t &lt; m_t[i+1] i for 0&lt;=i&lt;=m_t.Count()-2</span></div><div class="line"><a name="l00763"></a><span class="lineno"> 763</span>&#160;<span class="comment"> t&gt;m_t[ m_t.Count()-1] m_t.Count()-1</span></div><div class="line"><a name="l00764"></a><span class="lineno"> 764</span>&#160;<span class="comment"> </span></div><div class="line"><a name="l00765"></a><span class="lineno"> 765</span>&#160;<span class="comment"> bEnableSnap -[in] if true use tolerance when comparing to m_t values </span></div><div class="line"><a name="l00766"></a><span class="lineno"> 766</span>&#160;<span class="comment"> Returns </span></div><div class="line"><a name="l00767"></a><span class="lineno"> 767</span>&#160;<span class="comment"> true if the t is exactly equal to, or within tolerance of</span></div><div class="line"><a name="l00768"></a><span class="lineno"> 768</span>&#160;<span class="comment"> (only if bEnableSnap==true) m_t[index]. </span></div><div class="line"><a name="l00769"></a><span class="lineno"> 769</span>&#160;<span class="comment">*/</span> </div><div class="line"><a name="l00770"></a><span class="lineno"> 770</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ae57cffd07cc97af4e9636c5088babbdb">ParameterSearch</a>(<span class="keywordtype">double</span> t, <span class="keywordtype">int</span>&amp; index, <span class="keywordtype">bool</span> bEnableSnap) <span class="keyword">const</span>;</div><div class="line"><a name="l00771"></a><span class="lineno"> 771</span>&#160;</div><div class="line"><a name="l00772"></a><span class="lineno"> 772</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00773"></a><span class="lineno"> 773</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00774"></a><span class="lineno"> 774</span>&#160;<span class="comment"> Reference to m_segment.</span></div><div class="line"><a name="l00775"></a><span class="lineno"> 775</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00776"></a><span class="lineno"> 776</span>&#160; <span class="keyword">const</span> <a class="code" href="../../d8/d06/class_o_n___curve_array.html">ON_CurveArray</a>&amp; SegmentCurves() <span class="keyword">const</span>;</div><div class="line"><a name="l00777"></a><span class="lineno"> 777</span>&#160;</div><div class="line"><a name="l00778"></a><span class="lineno"> 778</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00779"></a><span class="lineno"> 779</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00780"></a><span class="lineno"> 780</span>&#160;<span class="comment"> Reference to m_t.</span></div><div class="line"><a name="l00781"></a><span class="lineno"> 781</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00782"></a><span class="lineno"> 782</span>&#160; <span class="keyword">const</span> <a class="code" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray&lt;double&gt;</a>&amp; SegmentParameters() <span class="keyword">const</span>;</div><div class="line"><a name="l00783"></a><span class="lineno"> 783</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00784"></a><span class="lineno"> 784</span>&#160;<span class="comment"> /////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00785"></a><span class="lineno"> 785</span>&#160;<span class="comment"></span> <span class="comment">// Implementation</span></div><div class="line"><a name="l00786"></a><span class="lineno"> 786</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00787"></a><span class="lineno"> 787</span>&#160; <span class="comment">// The curves in this array are deleted by ~ON_PolyCurve().</span></div><div class="line"><a name="l00788"></a><span class="lineno"> 788</span>&#160; <span class="comment">// Use ON_CurveProxy classes if you don&#39;t want ON_PolyCurve()</span></div><div class="line"><a name="l00789"></a><span class="lineno"> 789</span>&#160; <span class="comment">// to destroy the curve.</span></div><div class="line"><a name="l00790"></a><span class="lineno"> 790</span>&#160;</div><div class="line"><a name="l00791"></a><span class="lineno"> 791</span>&#160; <a class="code" href="../../d8/d06/class_o_n___curve_array.html">ON_CurveArray</a> m_segment; <span class="comment">// array of pointers to curves</span></div><div class="line"><a name="l00792"></a><span class="lineno"> 792</span>&#160; <span class="comment">// all have the same dimension</span></div><div class="line"><a name="l00793"></a><span class="lineno"> 793</span>&#160; <span class="comment">// and are contiguous to tolerance</span></div><div class="line"><a name="l00794"></a><span class="lineno"> 794</span>&#160;</div><div class="line"><a name="l00795"></a><span class="lineno"> 795</span>&#160; <a class="code" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray&lt;double&gt;</a> m_t; <span class="comment">// ON_PolyCurve segment parameterizations</span></div><div class="line"><a name="l00796"></a><span class="lineno"> 796</span>&#160;};</div><div class="line"><a name="l00797"></a><span class="lineno"> 797</span>&#160;</div><div class="line"><a name="l00798"></a><span class="lineno"> 798</span>&#160;</div><div class="line"><a name="l00799"></a><span class="lineno"> 799</span>&#160;<span class="preprocessor">#endif</span></div><div class="ttc" id="class_o_n___curve_html_a8108d949eee27fb0ab7b2b4339df5b7f"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a8108d949eee27fb0ab7b2b4339df5b7f">ON_Curve::IsClosed</a></div><div class="ttdeci">virtual bool IsClosed() const</div><div class="ttdoc">Test a curve to see if it is closed. </div></div>
<div class="ttc" id="class_o_n___curve_array_html"><div class="ttname"><a href="../../d8/d06/class_o_n___curve_array.html">ON_CurveArray</a></div><div class="ttdef"><b>Definition:</b> opennurbs_curve.h:1168</div></div>
<div class="ttc" id="class_o_n___curve_html_ad162b90ba333e4f3dd5b13823e1b5f27"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ad162b90ba333e4f3dd5b13823e1b5f27">ON_Curve::SpanCount</a></div><div class="ttdeci">virtual int SpanCount() const =0</div><div class="ttdoc">Get number of nonempty smooth (c-infinity) spans in curve </div></div>
<div class="ttc" id="class_o_n___curve_html_ac0a69004a8792a80abb7c9ee19f98f6a"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ac0a69004a8792a80abb7c9ee19f98f6a">ON_Curve::IsContinuous</a></div><div class="ttdeci">virtual bool IsContinuous(ON::continuity c, double t, int *hint=nullptr, double point_tolerance=ON_ZERO_TOLERANCE, double d1_tolerance=ON_ZERO_TOLERANCE, double d2_tolerance=ON_ZERO_TOLERANCE, double cos_angle_tolerance=ON_DEFAULT_ANGLE_TOLERANCE_COSINE, double curvature_tolerance=ON_SQRT_EPSILON) const</div><div class="ttdoc">Test continuity at a curve parameter value. </div></div>
<div class="ttc" id="class_o_n___curve_html_a2deaf514586ac4b16daa45a97d4bd8e1"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a2deaf514586ac4b16daa45a97d4bd8e1">ON_Curve::GetNextDiscontinuity</a></div><div class="ttdeci">virtual bool GetNextDiscontinuity(ON::continuity c, double t0, double t1, double *t, int *hint=nullptr, int *dtype=nullptr, double cos_angle_tolerance=ON_DEFAULT_ANGLE_TOLERANCE_COSINE, double curvature_tolerance=ON_SQRT_EPSILON) const</div><div class="ttdoc">Search for a derivatitive, tangent, or curvature discontinuity. </div></div>
<div class="ttc" id="class_o_n___geometry_html_a0d66ab16e2fddfd1b3e6cf3d6ebbd364"><div class="ttname"><a href="../../df/de0/class_o_n___geometry.html#a0d66ab16e2fddfd1b3e6cf3d6ebbd364">ON_Geometry::Dimension</a></div><div class="ttdeci">virtual int Dimension() const</div><div class="ttdoc">Dimension of the object. </div></div>
<div class="ttc" id="class_o_n___arc_html"><div class="ttname"><a href="../../d3/ddf/class_o_n___arc.html">ON_Arc</a></div><div class="ttdoc">An ON_Arc is a subcurve of 3d circle. </div><div class="ttdef"><b>Definition:</b> opennurbs_arc.h:33</div></div>
<div class="ttc" id="class_o_n___geometry_html_ad615e08fe92af659c8d10cbb4f8fc5e3"><div class="ttname"><a href="../../df/de0/class_o_n___geometry.html#ad615e08fe92af659c8d10cbb4f8fc5e3">ON_Geometry::GetBBox</a></div><div class="ttdeci">virtual bool GetBBox(double *boxmin, double *boxmax, bool bGrowBox=false) const</div><div class="ttdoc">This is the virtual function that actually calculates axis aligned bounding boxes. </div></div>
<div class="ttc" id="class_o_n___curve_html_ae57cffd07cc97af4e9636c5088babbdb"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ae57cffd07cc97af4e9636c5088babbdb">ON_Curve::ParameterSearch</a></div><div class="ttdeci">bool ParameterSearch(double t, int &amp;index, bool bEnableSnap, const ON_SimpleArray&lt; double &gt; &amp;m_t, double RelTol=ON_SQRT_EPSILON) const</div><div class="ttdoc">Lookup a parameter in the m_t array, optionally using a built in snap tolerance to snap a parameter v...</div></div>
<div class="ttc" id="class_o_n___curve_html_adb5f04bc1eb13842d60c7c9778740ca8"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#adb5f04bc1eb13842d60c7c9778740ca8">ON_Curve::IsArc</a></div><div class="ttdeci">virtual bool IsArc(const ON_Plane *plane=nullptr, ON_Arc *arc=nullptr, double tolerance=ON_ZERO_TOLERANCE) const</div><div class="ttdoc">Test a curve to see if the locus if its points is an arc or circle. </div></div>
<div class="ttc" id="class_o_n___curve_html_ab6db85b7bd367cab86201db1a6b5a1b5"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ab6db85b7bd367cab86201db1a6b5a1b5">ON_Curve::SetStartPoint</a></div><div class="ttdeci">virtual bool SetStartPoint(ON_3dPoint start_point)</div><div class="ttdoc">Force the curve to start at a specified point. </div></div>
<div class="ttc" id="class_o_n___curve_html_a25f556492601b4e679e8416cee60c529"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a25f556492601b4e679e8416cee60c529">ON_Curve::HasNurbForm</a></div><div class="ttdeci">virtual int HasNurbForm() const</div><div class="ttdoc">Does a NURBS curve representation of this curve. </div></div>
<div class="ttc" id="class_o_n___simple_array_html"><div class="ttname"><a href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray&lt; ON_3dPoint &gt;</a></div></div>
<div class="ttc" id="class_o_n___curve_html_ae619c78b795518c251c5ac32d34d568f"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ae619c78b795518c251c5ac32d34d568f">ON_Curve::GetSpanVector</a></div><div class="ttdeci">virtual bool GetSpanVector(double *knots) const =0</div><div class="ttdoc">Get number of parameters of &quot;knots&quot;. </div></div>
<div class="ttc" id="class_o_n___geometry_html_ac3d5cb708edca66a4a6c1992299329a3"><div class="ttname"><a href="../../df/de0/class_o_n___geometry.html#ac3d5cb708edca66a4a6c1992299329a3">ON_Geometry::MakeDeformable</a></div><div class="ttdeci">virtual bool MakeDeformable()</div><div class="ttdoc">If possible, converts the object into a form that can be accuratly modified with &quot;squishy&quot; transforma...</div></div>
<div class="ttc" id="class_o_n___curve_html_a506b1c3a2ad743b87d5a4085fe3d0b1a"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a506b1c3a2ad743b87d5a4085fe3d0b1a">ON_Curve::Reverse</a></div><div class="ttdeci">virtual bool Reverse()=0</div><div class="ttdoc">Reverse the direction of the curve. </div></div>
<div class="ttc" id="class_o_n___curve_html_ad590804af708aa05f56c27b6b3982ef7"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ad590804af708aa05f56c27b6b3982ef7">ON_Curve::Extend</a></div><div class="ttdeci">virtual bool Extend(const ON_Interval &amp;domain)</div><div class="ttdoc">Pure virtual function. Default returns false. Where possible, analytically extends curve to include d...</div></div>
<div class="ttc" id="class_o_n___curve_html"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a></div><div class="ttdoc">ON_Curve is a pure virtual class for curve objects </div><div class="ttdef"><b>Definition:</b> opennurbs_curve.h:93</div></div>
<div class="ttc" id="class_o_n___curve_html_a67dd944c24cda3d319fa5ac73bb95c2e"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a67dd944c24cda3d319fa5ac73bb95c2e">ON_Curve::GetNurbForm</a></div><div class="ttdeci">virtual int GetNurbForm(ON_NurbsCurve &amp;nurbs_curve, double tolerance=0.0, const ON_Interval *subdomain=nullptr) const</div><div class="ttdoc">Get a NURBS curve representation of this curve. </div></div>
<div class="ttc" id="class_o_n___curve_html_a3c1b90bd24333d58d584016e3b40225d"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a3c1b90bd24333d58d584016e3b40225d">ON_Curve::Degree</a></div><div class="ttdeci">virtual int Degree() const =0</div><div class="ttdoc">Returns maximum algebraic degree of any span or a good estimate if curve spans are not algebraic...</div></div>
<div class="ttc" id="class_o_n___curve_html_aa98dcc86caf6da5cdac543e52d695bd4"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#aa98dcc86caf6da5cdac543e52d695bd4">ON_Curve::IsPlanar</a></div><div class="ttdeci">virtual bool IsPlanar(ON_Plane *plane=nullptr, double tolerance=ON_ZERO_TOLERANCE) const</div><div class="ttdoc">Test a curve to see if it is planar. </div></div>
<div class="ttc" id="class_o_n___geometry_html_a737d7b1433104a39298629931e899cd4"><div class="ttname"><a href="../../df/de0/class_o_n___geometry.html#a737d7b1433104a39298629931e899cd4">ON_Geometry::SwapCoordinates</a></div><div class="ttdeci">virtual bool SwapCoordinates(int i, int j)</div><div class="ttdoc">Swaps object coordinate values with indices i and j. </div></div>
<div class="ttc" id="class_o_n___curve_html_ae3ed534f071a515ea5270acf2a04e6e7"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ae3ed534f071a515ea5270acf2a04e6e7">ON_Curve::GetNurbFormParameterFromCurveParameter</a></div><div class="ttdeci">virtual bool GetNurbFormParameterFromCurveParameter(double curve_t, double *nurbs_t) const</div><div class="ttdoc">Convert a curve parameter to a NURBS curve parameter. </div></div>
<div class="ttc" id="class_o_n___curve_html_ab1b9d5f72971851b4790f4f47d51a846"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ab1b9d5f72971851b4790f4f47d51a846">ON_Curve::DuplicateCurve</a></div><div class="ttdeci">virtual ON_Curve * DuplicateCurve() const</div><div class="ttdoc">Get a duplicate of the curve. </div></div>
<div class="ttc" id="class_o_n___curve_html_abd112f88c48651e238649201743bc692"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#abd112f88c48651e238649201743bc692">ON_Curve::ChangeDimension</a></div><div class="ttdeci">virtual bool ChangeDimension(int desired_dimension)</div><div class="ttdoc">Change the dimension of a curve. </div></div>
<div class="ttc" id="class_o_n___curve_html_ad625501436509ff71c9fa21778ad2459"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ad625501436509ff71c9fa21778ad2459">ON_Curve::EvaluatePoint</a></div><div class="ttdeci">bool EvaluatePoint(const class ON_ObjRef &amp;objref, ON_3dPoint &amp;P) const override</div><div class="ttdoc">virtual ON_Geometry override </div></div>
<div class="ttc" id="class_o_n___curve_html_a7c480c610e37703041d9eacb502d5ae8"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a7c480c610e37703041d9eacb502d5ae8">ON_Curve::IsInPlane</a></div><div class="ttdeci">virtual bool IsInPlane(const ON_Plane &amp;test_plane, double tolerance=ON_ZERO_TOLERANCE) const =0</div><div class="ttdoc">Test a curve to see if it lies in a specific plane. </div></div>
<div class="ttc" id="class_o_n___curve_html_a9f59373850214fc53a6c793596aece78"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a9f59373850214fc53a6c793596aece78">ON_Curve::Transform</a></div><div class="ttdeci">bool Transform(const ON_Xform &amp;xform) override</div><div class="ttdoc">overrides virtual ON_Geometry::Transform(). ON_Curve::Transform() calls ON_Geometry::Transform(xform)...</div></div>
<div class="ttc" id="class_o_n___curve_html_a467d9a30eb67c198df47da3abc1a87cd"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a467d9a30eb67c198df47da3abc1a87cd">ON_Curve::IsPolyline</a></div><div class="ttdeci">virtual int IsPolyline(ON_SimpleArray&lt; ON_3dPoint &gt; *pline_points=nullptr, ON_SimpleArray&lt; double &gt; *pline_t=nullptr) const</div><div class="ttdoc">Several types of ON_Curve can have the form of a polyline including a degree 1 ON_NurbsCurve, an ON_PolylineCurve, and an ON_PolyCurve all of whose segments are some form of polyline. IsPolyline tests a curve to see if it can be represented as a polyline. </div></div>
<div class="ttc" id="class_o_n___curve_html_aadf0546a6f3b286a670217caf0abbd7b"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#aadf0546a6f3b286a670217caf0abbd7b">ON_Curve::ChangeClosedCurveSeam</a></div><div class="ttdeci">virtual bool ChangeClosedCurveSeam(double t)</div><div class="ttdoc">If this curve is closed, then modify it so that the start/end point is at curve parameter t...</div></div>
<div class="ttc" id="class_o_n___bounding_box_html"><div class="ttname"><a href="../../d1/d17/class_o_n___bounding_box.html">ON_BoundingBox</a></div><div class="ttdef"><b>Definition:</b> opennurbs_bounding_box.h:25</div></div>
<div class="ttc" id="class_o_n___xform_html"><div class="ttname"><a href="../../d3/d13/class_o_n___xform.html">ON_Xform</a></div><div class="ttdef"><b>Definition:</b> opennurbs_xform.h:28</div></div>
<div class="ttc" id="class_o_n___poly_curve_html"><div class="ttname"><a href="../../d8/d00/class_o_n___poly_curve.html">ON_PolyCurve</a></div><div class="ttdoc">An ON_PolyCurve is an ON_Curve represented by a sequence of contiguous ON_Curve segments. A valid polycurve is represented by an array m_segment of Count()&gt;=1 curve objects and a strictly increasing array m_t of Count()+1 parameter values. The i-th curve segment, when considered as part of the polycurve, is affinely reparamaterized from m_t[i] to m_t[i+1], i.e., m_segment[i].Domain()[0] is mapped to m_t[i] and m_segment[i].Domain()[1] is mapped to m_t[i+1]. </div><div class="ttdef"><b>Definition:</b> opennurbs_polycurve.h:35</div></div>
<div class="ttc" id="class_o_n___curve_html_a07da6630700d2c2ce04f0bc3178b02b0"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a07da6630700d2c2ce04f0bc3178b02b0">ON_Curve::GetTightBoundingBox</a></div><div class="ttdeci">bool GetTightBoundingBox(class ON_BoundingBox &amp;tight_bbox, bool bGrowBox=false, const class ON_Xform *xform=nullptr) const override</div><div class="ttdoc">virtual ON_Geometry GetTightBoundingBox override </div></div>
<div class="ttc" id="class_o_n___object_html_a21c7b04a80f1806c3a45f72d7c491a44"><div class="ttname"><a href="../../d9/d7b/class_o_n___object.html#a21c7b04a80f1806c3a45f72d7c491a44">ON_Object::Dump</a></div><div class="ttdeci">virtual void Dump(ON_TextLog &amp;) const</div><div class="ttdoc">Creates a text dump of the object. </div></div>
<div class="ttc" id="class_o_n___object_html_ad265ca0da2d751edaa9d2b5ab2540c6a"><div class="ttname"><a href="../../d9/d7b/class_o_n___object.html#ad265ca0da2d751edaa9d2b5ab2540c6a">ON_Object::EmergencyDestroy</a></div><div class="ttdeci">void EmergencyDestroy()</div><div class="ttdoc">Sets m_user_data_list = 0. </div></div>
<div class="ttc" id="class_o_n___geometry_html_af156cd098b9e68fab5f32e76b1e274e2"><div class="ttname"><a href="../../df/de0/class_o_n___geometry.html#af156cd098b9e68fab5f32e76b1e274e2">ON_Geometry::IsDeformable</a></div><div class="ttdeci">virtual bool IsDeformable() const</div></div>
<div class="ttc" id="class_o_n___curve_html_a91620c97b56aba376a763086efb4f817"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a91620c97b56aba376a763086efb4f817">ON_Curve::operator=</a></div><div class="ttdeci">ON_Curve &amp; operator=(const ON_Curve &amp;)</div></div>
<div class="ttc" id="class_o_n___curve_html_ad27af42168a1be8f54fff24aed354aab"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ad27af42168a1be8f54fff24aed354aab">ON_Curve::IsPeriodic</a></div><div class="ttdeci">virtual bool IsPeriodic() const</div><div class="ttdoc">Test a curve to see if it is periodic. </div></div>
<div class="ttc" id="class_o_n___curve_html_ac8dc771e7ebcfac85baf26c7e6b21c70"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ac8dc771e7ebcfac85baf26c7e6b21c70">ON_Curve::SetDomain</a></div><div class="ttdeci">bool SetDomain(ON_Interval domain)</div><div class="ttdoc">Set the domain of the curve. </div></div>
<div class="ttc" id="class_o_n___curve_html_ad64be6b1a263a59bfc740199d6de8ace"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ad64be6b1a263a59bfc740199d6de8ace">ON_Curve::GetCurveParameterFromNurbFormParameter</a></div><div class="ttdeci">virtual bool GetCurveParameterFromNurbFormParameter(double nurbs_t, double *curve_t) const</div><div class="ttdoc">Convert a NURBS curve parameter to a curve parameter </div></div>
<div class="ttc" id="class_o_n___curve_html_abd583766fdcd75cc269e87aeab40c4a7"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#abd583766fdcd75cc269e87aeab40c4a7">ON_Curve::Trim</a></div><div class="ttdeci">virtual bool Trim(const ON_Interval &amp;domain)</div><div class="ttdoc">Removes portions of the curve outside the specified interval. </div></div>
<div class="ttc" id="class_o_n___curve_html_a96e8ee83e56e84c16a14637fe48a42ee"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a96e8ee83e56e84c16a14637fe48a42ee">ON_Curve::SetEndPoint</a></div><div class="ttdeci">virtual bool SetEndPoint(ON_3dPoint end_point)</div><div class="ttdoc">Force the curve to end at a specified point. </div></div>
<div class="ttc" id="class_o_n___curve_html_acb8caa121873abcf53f050a8953a70bb"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#acb8caa121873abcf53f050a8953a70bb">ON_Curve::Evaluate</a></div><div class="ttdeci">virtual bool Evaluate(double t, int der_count, int v_stride, double *v, int side=0, int *hint=0) const =0</div><div class="ttdoc">This evaluator actually does all the work. The other ON_Curve evaluation tools call this virtual func...</div></div>
<div class="ttc" id="class_o_n___nurbs_curve_html"><div class="ttname"><a href="../../d3/d6a/class_o_n___nurbs_curve.html">ON_NurbsCurve</a></div><div class="ttdef"><b>Definition:</b> opennurbs_nurbscurve.h:26</div></div>
<div class="ttc" id="class_o_n___text_log_html"><div class="ttname"><a href="../../d2/da3/class_o_n___text_log.html">ON_TextLog</a></div><div class="ttdef"><b>Definition:</b> opennurbs_textlog.h:20</div></div>
<div class="ttc" id="class_o_n___binary_archive_html"><div class="ttname"><a href="../../db/d16/class_o_n___binary_archive.html">ON_BinaryArchive</a></div><div class="ttdef"><b>Definition:</b> opennurbs_archive.h:1783</div></div>
<div class="ttc" id="class_o_n___object_html_a09ac9742ead91dd8f9cdd579bcbfed10"><div class="ttname"><a href="../../d9/d7b/class_o_n___object.html#a09ac9742ead91dd8f9cdd579bcbfed10">ON_Object::Read</a></div><div class="ttdeci">virtual bool Read(ON_BinaryArchive &amp;binary_archive)</div><div class="ttdoc">Low level archive writing tool used by ON_BinaryArchive::ReadObject(). </div></div>
<div class="ttc" id="class_o_n___obj_ref_html"><div class="ttname"><a href="../../d3/d80/class_o_n___obj_ref.html">ON_ObjRef</a></div><div class="ttdef"><b>Definition:</b> opennurbs_objref.h:163</div></div>
<div class="ttc" id="class_o_n__3d_point_html"><div class="ttname"><a href="../../d2/d35/class_o_n__3d_point.html">ON_3dPoint</a></div><div class="ttdef"><b>Definition:</b> opennurbs_point.h:460</div></div>
<div class="ttc" id="class_o_n___geometry_html_adf87e5ba0d9939dfabbb9f421b9d2b3b"><div class="ttname"><a href="../../df/de0/class_o_n___geometry.html#adf87e5ba0d9939dfabbb9f421b9d2b3b">ON_Geometry::IsValid</a></div><div class="ttdeci">bool IsValid(class ON_TextLog *text_log=nullptr) const override</div><div class="ttdoc">Tests an object to see if its data members are correctly initialized. </div></div>
<div class="ttc" id="class_o_n___object_html_a16eb9ab6bf0d0a614655cf9cd055871a"><div class="ttname"><a href="../../d9/d7b/class_o_n___object.html#a16eb9ab6bf0d0a614655cf9cd055871a">ON_Object::Write</a></div><div class="ttdeci">virtual bool Write(ON_BinaryArchive &amp;binary_archive) const</div><div class="ttdoc">Low level archive writing tool used by ON_BinaryArchive::WriteObject(). </div></div>
<div class="ttc" id="class_o_n___object_html_af51d5fcec9379ad9b7a56ac4dfc9a8b2"><div class="ttname"><a href="../../d9/d7b/class_o_n___object.html#af51d5fcec9379ad9b7a56ac4dfc9a8b2">ON_Object::DataCRC</a></div><div class="ttdeci">virtual ON__UINT32 DataCRC(ON__UINT32 current_remainder) const</div><div class="ttdoc">Returns a CRC calculated from the information that defines the object. This CRC can be used as a quic...</div></div>
<div class="ttc" id="class_o_n___plane_html"><div class="ttname"><a href="../../d4/d48/class_o_n___plane.html">ON_Plane</a></div><div class="ttdef"><b>Definition:</b> opennurbs_plane.h:20</div></div>
<div class="ttc" id="class_o_n___curve_html_a4ad9a73ad53707fbebfc904e772f605b"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a4ad9a73ad53707fbebfc904e772f605b">ON_Curve::DestroyRuntimeCache</a></div><div class="ttdeci">void DestroyRuntimeCache(bool bDelete=true) override</div><div class="ttdoc">virtual ON_Object::DestroyRuntimeCache override </div></div>
<div class="ttc" id="class_o_n___curve_html_af13b163bb51b3972593f6ccf89d18950"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#af13b163bb51b3972593f6ccf89d18950">ON_Curve::SizeOf</a></div><div class="ttdeci">unsigned int SizeOf() const override</div><div class="ttdoc">virtual ON_Object::SizeOf override </div></div>
<div class="ttc" id="class_o_n___curve_html_a325716a9735ab59416bf6800a23ce5fc"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a325716a9735ab59416bf6800a23ce5fc">ON_Curve::IsLinear</a></div><div class="ttdeci">virtual bool IsLinear(double tolerance=ON_ZERO_TOLERANCE) const</div><div class="ttdoc">Test a curve to see if the locus if its points is a line segment. </div></div>
<div class="ttc" id="class_o_n___interval_html"><div class="ttname"><a href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a></div><div class="ttdef"><b>Definition:</b> opennurbs_point.h:46</div></div>
<div class="ttc" id="class_o_n___curve_html_ae3a1e3ea7c924246a43754aa03790432"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ae3a1e3ea7c924246a43754aa03790432">ON_Curve::Domain</a></div><div class="ttdeci">virtual ON_Interval Domain() const =0</div></div>
<div class="ttc" id="class_o_n___curve_html_a2d6c16e8ddfe8f2cde8c4431db67a337"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a2d6c16e8ddfe8f2cde8c4431db67a337">ON_Curve::Split</a></div><div class="ttdeci">virtual bool Split(double t, ON_Curve *&amp;left_side, ON_Curve *&amp;right_side) const</div><div class="ttdoc">Splits (divides) the curve at the specified parameter. The parameter must be in the interior of the c...</div></div>
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</div> <!-- container -->
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<script type="text/javascript" src="../../doxy-boot.js"></script>
</body>
</html>
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