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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* $NoKeywords: $ */</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">/*</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">//</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Copyright (c) 1993-2012 Robert McNeel & Associates. All rights reserved.</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <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> <span class="comment">// McNeel & Associates.</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY.</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <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> <span class="comment">// MERCHANTABILITY ARE HEREBY DISCLAIMED.</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// </span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// For complete openNURBS copyright information see <http://www.opennurbs.org>.</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">//</span><span class="comment"></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"></span>*/</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#if !defined(ON_GEOMETRY_CURVE_ARC_INC_)</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#define ON_GEOMETRY_CURVE_ARC_INC_</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">/*</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">Description:</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> ON_ArcCurve is used to represent arcs and circles.</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> ON_ArcCurve.IsCircle() returns true if the curve</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> is a complete circle.</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">Remarks:</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> - An ON_ArcCurve is a subcurve of a circle, with a </span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> constant speed parameterization. The parameterization is</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> an affine linear reparameterzation of the underlying arc</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> m_arc onto the domain m_t.</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> - A valid ON_ArcCurve has Radius()>0 and 0<AngleRadians()<=2*PI</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> and a strictly increasing Domain(). </span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment">*/</span></div><div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="../../dc/d83/class_o_n___arc_curve.html"> 34</a></span> <span class="keyword">class </span>ON_CLASS <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</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="l00035"></a><span class="lineno"> 35</span> {</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  ON_OBJECT_DECLARE(<a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>);</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>() ON_NOEXCEPT;</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">virtual</span> ~<a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>();</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>(<span class="keyword">const</span> <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>&);</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>& <a class="code" href="../../d4/d5a/class_o_n___curve.html#a91620c97b56aba376a763086efb4f817">operator=</a>(<span class="keyword">const</span> <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>&);</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#if defined(ON_HAS_RVALUEREF)</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="comment">// rvalue copy constructor</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>( <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>&& ) ON_NOEXCEPT;</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="comment">// The rvalue assignment operator calls ON_Object::operator=(ON_Object&&)</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="comment">// which could throw exceptions. See the implementation of</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">// ON_Object::operator=(ON_Object&&) for details.</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>& <a class="code" href="../../d4/d5a/class_o_n___curve.html#a91620c97b56aba376a763086efb4f817">operator=</a>( <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>&& );</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// virtual ON_Object::SizeOf override</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <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="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="comment">// virtual ON_Object::DataCRC override</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  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="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">/*</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> Description:</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> Create an arc curve with domain (0,arc.Length()).</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> */</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>( </div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">const</span> <a class="code" href="../../d3/ddf/class_o_n___arc.html">ON_Arc</a>& arc </div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  );</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">/*</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> Description:</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> Create an arc curve with domain (t0,t1)</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"> */</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>(</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">const</span> <a class="code" href="../../d3/ddf/class_o_n___arc.html">ON_Arc</a>& arc,</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordtype">double</span> t0,</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">double</span> t1</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  );</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">/*</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment"> Description:</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment"> Creates a curve that is a complete circle with </span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"> domain (0,circle.Length()).</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"> */</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>(</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">const</span> <a class="code" href="../../d1/d1b/class_o_n___circle.html">ON_Circle</a>& circle</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  );</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="comment">/*</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment"> Description:</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"> Creates a curve that is a complete circle with domain (t0,t1).</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment"> */</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>(</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keyword">const</span> <a class="code" href="../../d1/d1b/class_o_n___circle.html">ON_Circle</a>& circle,</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordtype">double</span> t0,</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordtype">double</span> t1</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  );</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="comment">/*</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"> Description:</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment"> Create an arc curve with domain (0,arc.Length()).</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment"> */</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>& <a class="code" href="../../d4/d5a/class_o_n___curve.html#a91620c97b56aba376a763086efb4f817">operator=</a>(<span class="keyword">const</span> <a class="code" href="../../d3/ddf/class_o_n___arc.html">ON_Arc</a>& arc);</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="comment">/*</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment"> Description:</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"> Creates a curve that is a complete circle with </span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment"> domain (0,circle.Length()).</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment"> */</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a>& <a class="code" href="../../d4/d5a/class_o_n___curve.html#a91620c97b56aba376a763086efb4f817">operator=</a>(<span class="keyword">const</span> <a class="code" href="../../d1/d1b/class_o_n___circle.html">ON_Circle</a>& circle);</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="comment"></span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment"> /////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment"></span> <span class="comment">// ON_Object overrides</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <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="l00114"></a><span class="lineno"> 114</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <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>& ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <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="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="../../db/d16/class_o_n___binary_archive.html">ON_BinaryArchive</a>& <span class="comment">// open binary file</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <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="l00122"></a><span class="lineno"> 122</span>  <a class="code" href="../../db/d16/class_o_n___binary_archive.html">ON_BinaryArchive</a>& <span class="comment">// open binary file</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  ) <span class="keyword">override</span>;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment"></span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment"> /////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment"></span> <span class="comment">// ON_Geometry overrides</span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <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="l00129"></a><span class="lineno"> 129</span> </div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="comment">// virtual ON_Geometry GetBBox override </span></div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <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="l00132"></a><span class="lineno"> 132</span> </div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="comment">// virtual ON_Geometry GetTightBoundingBox override </span></div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <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>& 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="l00135"></a><span class="lineno"> 135</span> </div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <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="l00137"></a><span class="lineno"> 137</span>  <span class="keyword">const</span> <a class="code" href="../../d3/d13/class_o_n___xform.html">ON_Xform</a>&</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  ) <span class="keyword">override</span>;</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment"></span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment"> /////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment"></span> <span class="comment">// ON_Curve overrides</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="comment">// Description:</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">// virtual ON_Curve::SetDomain override.</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="comment">// Set the domain of the curve</span></div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="comment">// Parameters:</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="comment">// t0 - [in]</span></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="comment">// t1 - [in] new domain will be [t0,t1]</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// Returns:</span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// true if successful.</span></div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <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="l00152"></a><span class="lineno"> 152</span>  <span class="keywordtype">double</span> t0, </div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordtype">double</span> t1 </div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  ) <span class="keyword">override</span>;</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <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="l00157"></a><span class="lineno"> 157</span> </div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <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="l00159"></a><span class="lineno"> 159</span>  <span class="keywordtype">int</span> desired_dimension</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  ) <span class="keyword">override</span>;</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <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="l00163"></a><span class="lineno"> 163</span>  <span class="keywordtype">double</span> t </div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  ) <span class="keyword">override</span>;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <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="l00167"></a><span class="lineno"> 167</span> </div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ae619c78b795518c251c5ac32d34d568f">GetSpanVector</a>( <span class="comment">// span "knots" </span></div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordtype">double</span>* <span class="comment">// array of length SpanCount() + 1 </span></div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  ) <span class="keyword">const override</span>; <span class="comment">//</span></div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <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="l00173"></a><span class="lineno"> 173</span>  <span class="comment">// ( or a good estimate if curve spans are not algebraic )</span></div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <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="l00177"></a><span class="lineno"> 177</span>  <span class="comment">// between specified points</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordtype">double</span> = ON_ZERO_TOLERANCE <span class="comment">// tolerance to use when checking linearity</span></div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <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 > 0 if curve locus is an arc between</span></div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="comment">// specified points</span></div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <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="l00184"></a><span class="lineno"> 184</span>  <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="l00185"></a><span class="lineno"> 185</span>  <span class="comment">// are filled in</span></div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordtype">double</span> = 0.0 <span class="comment">// tolerance to use when checking</span></div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <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="l00190"></a><span class="lineno"> 190</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 and true is returned, then plane parameters</span></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="comment">// are filled in</span></div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordtype">double</span> = 0.0 <span class="comment">// tolerance to use when checking</span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <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="l00196"></a><span class="lineno"> 196</span>  <span class="keyword">const</span> <a class="code" href="../../d4/d48/class_o_n___plane.html">ON_Plane</a>&, <span class="comment">// plane to test</span></div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordtype">double</span> = 0.0 <span class="comment">// tolerance to use when checking</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> </div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <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="l00201"></a><span class="lineno"> 201</span>  <span class="keywordtype">void</span> <span class="comment">// clamped end knots and euclidean location of start</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  ) <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="l00203"></a><span class="lineno"> 203</span>  <span class="comment">// periodic.)</span></div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> </div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <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="l00206"></a><span class="lineno"> 206</span>  <span class="keywordtype">void</span> </div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  </div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <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="l00210"></a><span class="lineno"> 210</span>  ON::continuity c,</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordtype">double</span> t, </div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordtype">int</span>* hint = <span class="keyword">nullptr</span>,</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordtype">double</span> point_tolerance=ON_ZERO_TOLERANCE,</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordtype">double</span> d1_tolerance=ON_ZERO_TOLERANCE,</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordtype">double</span> d2_tolerance=ON_ZERO_TOLERANCE,</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordtype">double</span> cos_angle_tolerance=ON_DEFAULT_ANGLE_TOLERANCE_COSINE,</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordtype">double</span> curvature_tolerance=ON_SQRT_EPSILON</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <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="l00221"></a><span class="lineno"> 221</span>  <span class="comment">// Domain changes from [a,b] to [-b,-a]</span></div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span> </div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="comment">/*</span></div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment"> Description:</span></div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment"> Force the curve to start at a specified point.</span></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment"> Parameters:</span></div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment"> start_point - [in]</span></div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment"> Returns:</span></div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment"> true if successful.</span></div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment"> Remarks:</span></div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="comment"> Some end points cannot be moved. Be sure to check return</span></div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="comment"> code.</span></div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="comment"> See Also:</span></div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="comment"> ON_Curve::SetEndPoint</span></div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment"> ON_Curve::PointAtStart</span></div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="comment"> ON_Curve::PointAtEnd</span></div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="comment"> */</span></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <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="l00239"></a><span class="lineno"> 239</span>  <a class="code" href="../../d2/d35/class_o_n__3d_point.html">ON_3dPoint</a> start_point</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  ) <span class="keyword">override</span>;</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="comment">/*</span></div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment"> Description:</span></div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="comment"> Force the curve to end at a specified point.</span></div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="comment"> Parameters:</span></div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="comment"> end_point - [in]</span></div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="comment"> Returns:</span></div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="comment"> true if successful.</span></div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="comment"> Remarks:</span></div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="comment"> Some end points cannot be moved. Be sure to check return</span></div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="comment"> code.</span></div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="comment"> See Also:</span></div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="comment"> ON_Curve::SetStartPoint</span></div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="comment"> ON_Curve::PointAtStart</span></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="comment"> ON_Curve::PointAtEnd</span></div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="comment"> */</span></div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <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="l00258"></a><span class="lineno"> 258</span>  <a class="code" href="../../d2/d35/class_o_n__3d_point.html">ON_3dPoint</a> end_point</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  ) <span class="keyword">override</span>;</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <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="l00262"></a><span class="lineno"> 262</span>  <span class="keywordtype">double</span>, <span class="comment">// evaluation parameter</span></div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keywordtype">int</span>, <span class="comment">// number of derivatives (>=0)</span></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keywordtype">int</span>, <span class="comment">// array stride (>=Dimension())</span></div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keywordtype">double</span>*, <span class="comment">// array of length stride*(ndir+1)</span></div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keywordtype">int</span> = 0, <span class="comment">// optional - determines which side to evaluate from</span></div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="comment">// 0 = default</span></div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="comment">// < 0 to evaluate from below, </span></div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="comment">// > 0 to evaluate from above</span></div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordtype">int</span>* = 0 <span class="comment">// optional - evaluation hint (int) used to speed</span></div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="comment">// repeated evaluations</span></div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span> </div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#abd583766fdcd75cc269e87aeab40c4a7">Trim</a>( <span class="keyword">const</span> <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a>& ) <span class="keyword">override</span>;</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> </div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="comment">// Description:</span></div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="comment">// Where possible, analytically extends curve to include domain.</span></div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="comment">// Parameters:</span></div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="comment">// domain - [in] if domain is not included in curve domain, </span></div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="comment">// curve will be extended so that its domain includes domain. </span></div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="comment">// Will not work if curve is closed. Original curve is identical</span></div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="comment">// to the restriction of the resulting curve to the original curve domain, </span></div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="comment">// Returns:</span></div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="comment">// true if successful.</span></div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <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="l00286"></a><span class="lineno"> 286</span>  <span class="keyword">const</span> <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a>& domain</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  ) <span class="keyword">override</span>;</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span> </div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="comment">/*</span></div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="comment"> Description:</span></div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="comment"> Splits (divides) the arc at the specified parameter. </span></div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="comment"> The parameter must be in the interior of the arc's domain.</span></div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="comment"> The ON_Curve pointers passed to ON_ArcCurve::Split must </span></div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="comment"> either be nullptr or point to ON_ArcCurve objects.</span></div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="comment"> If a pointer is nullptr, then an ON_ArcCurve will be created </span></div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="comment"> in Split(). You may pass "this" as left_side or right_side.</span></div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="comment"> Parameters:</span></div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="comment"> t - [in] parameter to split the curve at in the</span></div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="comment"> interval returned by Domain().</span></div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="comment"> left_side - [out] left portion of curve returned here.</span></div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="comment"> If not nullptr, left_side must point to an ON_ArcCuve.</span></div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span> <span class="comment"> right_side - [out] right portion of curve returned here</span></div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span> <span class="comment"> If not nullptr, right_side must point to an ON_ArcCuve.</span></div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span> <span class="comment"> Remarks:</span></div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="comment"> Overrides virtual ON_Curve::Split.</span></div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span> <span class="comment"> */</span></div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <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="l00308"></a><span class="lineno"> 308</span>  <span class="keywordtype">double</span> t,</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>*& left_side,</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>*& right_side</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span> </div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="comment">// virtual ON_Curve::GetNurbForm override</span></div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <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="l00316"></a><span class="lineno"> 316</span>  <span class="comment">// with desired accuracy.</span></div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="comment">// 1: success - returned NURBS parameterization</span></div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="comment">// matches the curve's to wthe desired accuracy</span></div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="comment">// 2: success - returned NURBS point locus matches</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="comment">// the curve's to the desired accuracy but, on</span></div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="comment">// the interior of the curve's domain, the </span></div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="comment">// curve's parameterization and the NURBS</span></div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="comment">// parameterization may not match to the </span></div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="comment">// desired accuracy.</span></div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <a class="code" href="../../d3/d6a/class_o_n___nurbs_curve.html">ON_NurbsCurve</a>&,</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keywordtype">double</span> = 0.0,</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <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 arc curve</span></div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span> </div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="comment">// virtual ON_Curve::HasNurbForm override</span></div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <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="l00332"></a><span class="lineno"> 332</span>  <span class="comment">// with desired accuracy.</span></div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="comment">// 1: success - NURBS parameterization</span></div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="comment">// matches the curve's</span></div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="comment">// 2: success - returned NURBS point locus matches</span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="comment">// the curve'sbut, on</span></div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="comment">// the interior of the curve's domain, the </span></div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="comment">// curve's parameterization and the NURBS</span></div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="comment">// parameterization may not match to the </span></div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="comment">// desired accuracy.</span></div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span> </div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="comment">// virtual ON_Curve::GetCurveParameterFromNurbFormParameter override</span></div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <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="l00345"></a><span class="lineno"> 345</span>  <span class="keywordtype">double</span>, <span class="comment">// nurbs_t</span></div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keywordtype">double</span>* <span class="comment">// curve_t</span></div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span> </div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="comment">// virtual ON_Curve::GetNurbFormParameterFromCurveParameter override</span></div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <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="l00351"></a><span class="lineno"> 351</span>  <span class="keywordtype">double</span>, <span class="comment">// curve_t</span></div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="keywordtype">double</span>* <span class="comment">// nurbs_t</span></div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  </div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  </div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="comment">/*</span></div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span> <span class="comment"> Description:</span></div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="comment"> Returns true if this arc curve is a complete circle.</span></div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span> <span class="comment"> */</span></div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordtype">bool</span> IsCircle() <span class="keyword">const</span>;</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span> </div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="comment">// Returns:</span></div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="comment">// The arc's radius.</span></div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keywordtype">double</span> Radius() <span class="keyword">const</span>;</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span> </div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="comment">// Returns:</span></div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="comment">// The arc's subtended angle in radians.</span></div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keywordtype">double</span> AngleRadians() <span class="keyword">const</span>;</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span> </div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="comment">// Returns:</span></div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="comment">// The arc's subtended angle in degrees.</span></div><div class="line"><a name="l00372"></a><span class="lineno"><a class="line" href="../../dc/d83/class_o_n___arc_curve.html#adfacdada9d5f0a460c43506d259e8432"> 372</a></span>  <span class="keywordtype">double</span> AngleDegrees() <span class="keyword">const</span>;</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span> </div><div class="line"><a name="l00374"></a><span class="lineno"><a class="line" href="../../dc/d83/class_o_n___arc_curve.html#a92b50fe2499c91f317d551ae9b3b705b"> 374</a></span> <span class="comment"></span></div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span> <span class="comment"> /////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span> <span class="comment"></span></div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <a class="code" href="../../d3/ddf/class_o_n___arc.html">ON_Arc</a> m_arc = <a class="code" href="../../d3/ddf/class_o_n___arc.html#ac3523ced5157b20b7ba05ccdfc6070bc">ON_Arc::UnitCircle</a>; <span class="comment">// defualt = radius 1 circle in x-y plane</span></div><div class="line"><a name="l00378"></a><span class="lineno"><a class="line" href="../../dc/d83/class_o_n___arc_curve.html#a15ec1a5cd6175aa75a40213dfc54b5b8"> 378</a></span>  </div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a> m_t = <a class="code" href="../../dc/dc7/class_o_n___interval.html#ad843bb578a893163ff9102a2f1a6d996">ON_Interval::ZeroToTwoPi</a>;</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span> </div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="comment">// The dimension of a arc curve can be 2 or 3.</span></div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="comment">// (2 so ON_ArcCurve can be used as a trimming curve)</span></div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordtype">int</span> m_dim = 3;</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span> };</div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span> </div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> </div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span> <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>
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<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>
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<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>
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<div class="ttc" id="class_o_n___arc_curve_html"><div class="ttname"><a href="../../dc/d83/class_o_n___arc_curve.html">ON_ArcCurve</a></div><div class="ttdoc">ON_ArcCurve is used to represent arcs and circles. ON_ArcCurve.IsCircle() returns true if the curve i...</div><div class="ttdef"><b>Definition:</b> opennurbs_arccurve.h:34</div></div>
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<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>
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<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>
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<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>
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<div class="ttc" id="class_o_n___interval_html_ad843bb578a893163ff9102a2f1a6d996"><div class="ttname"><a href="../../dc/dc7/class_o_n___interval.html#ad843bb578a893163ff9102a2f1a6d996">ON_Interval::ZeroToTwoPi</a></div><div class="ttdeci">static const ON_Interval ZeroToTwoPi</div><div class="ttdef"><b>Definition:</b> opennurbs_point.h:51</div></div>
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<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>
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<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>
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<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>
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<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 "knots". </div></div>
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<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>
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<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 &domain)</div><div class="ttdoc">Pure virtual function. Default returns false. Where possible, analytically extends curve to include d...</div></div>
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<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>
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<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 &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>
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<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>
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<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>
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<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>
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<div class="ttc" id="class_o_n___circle_html"><div class="ttname"><a href="../../d1/d1b/class_o_n___circle.html">ON_Circle</a></div><div class="ttdoc">ON_Circle is a circle in 3d. The cirle is represented by a radius and an orthonormal frame of the pla...</div><div class="ttdef"><b>Definition:</b> opennurbs_circle.h:32</div></div>
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<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>
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<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 &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>
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<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 &xform) override</div><div class="ttdoc">overrides virtual ON_Geometry::Transform(). ON_Curve::Transform() calls ON_Geometry::Transform(xform)...</div></div>
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<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>
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<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>
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<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>
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<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 &tight_bbox, bool bGrowBox=false, const class ON_Xform *xform=nullptr) const override</div><div class="ttdoc">virtual ON_Geometry GetTightBoundingBox override </div></div>
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<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 &) const</div><div class="ttdoc">Creates a text dump of the object. </div></div>
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<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 & operator=(const ON_Curve &)</div></div>
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<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>
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<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>
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<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>
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<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 &domain)</div><div class="ttdoc">Removes portions of the curve outside the specified interval. </div></div>
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<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>
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<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>
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<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>
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<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>
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<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>
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<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 &binary_archive)</div><div class="ttdoc">Low level archive writing tool used by ON_BinaryArchive::ReadObject(). </div></div>
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<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>
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<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>
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<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 &binary_archive) const</div><div class="ttdoc">Low level archive writing tool used by ON_BinaryArchive::WriteObject(). </div></div>
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<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>
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<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>
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<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>
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<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>
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<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>
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<div class="ttc" id="class_o_n___arc_html_ac3523ced5157b20b7ba05ccdfc6070bc"><div class="ttname"><a href="../../d3/ddf/class_o_n___arc.html#ac3523ced5157b20b7ba05ccdfc6070bc">ON_Arc::UnitCircle</a></div><div class="ttdeci">static const ON_Arc UnitCircle</div><div class="ttdef"><b>Definition:</b> opennurbs_arc.h:44</div></div>
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<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>
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<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 *&left_side, ON_Curve *&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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