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<div class="title">opennurbs_curveonsurface.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;</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#if !defined(OPENNURBS_CURVE_ON_SURFACE_INC_)</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#define OPENNURBS_CURVE_ON_SURFACE_INC_</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;</div><div class="line"><a name="l00020"></a><span class="lineno"><a class="line" href="../../d5/d1a/class_o_n___curve_on_surface.html"> 20</a></span>&#160;<span class="keyword">class </span>ON_CLASS <a class="code" href="../../d5/d1a/class_o_n___curve_on_surface.html">ON_CurveOnSurface</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="l00021"></a><span class="lineno"> 21</span>&#160;{</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; ON_OBJECT_DECLARE(<a class="code" href="../../d5/d1a/class_o_n___curve_on_surface.html">ON_CurveOnSurface</a>);</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; <a class="code" href="../../d5/d1a/class_o_n___curve_on_surface.html">ON_CurveOnSurface</a>() ON_NOEXCEPT;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="comment"> Deletes m_c2, m_c3, and m_s. Use ON_CurveProxy or ON_SurfaceProxy</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="comment"> if you need to use curves or a surface that you do not want deleted.</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; <span class="keyword">virtual</span> ~<a class="code" href="../../d5/d1a/class_o_n___curve_on_surface.html">ON_CurveOnSurface</a>();</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <a class="code" href="../../d5/d1a/class_o_n___curve_on_surface.html">ON_CurveOnSurface</a>(<span class="keyword">const</span> <a class="code" href="../../d5/d1a/class_o_n___curve_on_surface.html">ON_CurveOnSurface</a>&amp;); <span class="comment">// no implementation</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; <a class="code" href="../../d5/d1a/class_o_n___curve_on_surface.html">ON_CurveOnSurface</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="../../d5/d1a/class_o_n___curve_on_surface.html">ON_CurveOnSurface</a>&amp;); <span class="comment">// no implementation</span></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="preprocessor">#if defined(ON_HAS_RVALUEREF)</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="comment">// rvalue copy constructor</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <a class="code" href="../../d5/d1a/class_o_n___curve_on_surface.html">ON_CurveOnSurface</a>( <a class="code" href="../../d5/d1a/class_o_n___curve_on_surface.html">ON_CurveOnSurface</a>&amp;&amp; ) ON_NOEXCEPT;</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="comment">// The rvalue assignment operator calls ON_Object::operator=(ON_Object&amp;&amp;)</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <span class="comment">// which could throw exceptions. See the implementation of</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <span class="comment">// ON_Object::operator=(ON_Object&amp;&amp;) for details.</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <a class="code" href="../../d5/d1a/class_o_n___curve_on_surface.html">ON_CurveOnSurface</a>&amp; <a class="code" href="../../d4/d5a/class_o_n___curve.html#a91620c97b56aba376a763086efb4f817">operator=</a>( <a class="code" href="../../d5/d1a/class_o_n___curve_on_surface.html">ON_CurveOnSurface</a>&amp;&amp; );</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160;</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;<span class="comment"> p2dCurve - [in] ~ON_CurveOnSurface() will delete this curve.</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;<span class="comment"> Use an ON_CurveProxy if you don&#39;t want the original deleted.</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;<span class="comment"> p3dCurve - [in] ~ON_CurveOnSurface() will delete this curve.</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;<span class="comment"> Use an ON_CurveProxy if you don&#39;t want the original deleted.</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;<span class="comment"> pSurface - [in] ~ON_CurveOnSurface() will delete this surface.</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;<span class="comment"> Use an ON_SurfaceProxy if you don&#39;t want the original deleted.</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; <a class="code" href="../../d5/d1a/class_o_n___curve_on_surface.html">ON_CurveOnSurface</a>( <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* p2dCurve, <span class="comment">// required 2d curve</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* p3dCurve, <span class="comment">// optional 3d curve</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <a class="code" href="../../da/da0/class_o_n___surface.html">ON_Surface</a>* pSurface <span class="comment">// required surface</span></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="comment">// virtual ON_Object::SizeOf override</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</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="l00068"></a><span class="lineno"> 68</span>&#160;</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></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;<span class="comment"></span> <span class="comment">// ON_Object overrides</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160;</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</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="l00074"></a><span class="lineno"> 74</span>&#160;</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</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="l00076"></a><span class="lineno"> 76</span>&#160;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</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="l00078"></a><span class="lineno"> 78</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="l00079"></a><span class="lineno"> 79</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</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="l00082"></a><span class="lineno"> 82</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="l00083"></a><span class="lineno"> 83</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160;<span class="comment"> /////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;<span class="comment"></span> <span class="comment">// ON_Geometry overrides</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</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="l00089"></a><span class="lineno"> 89</span>&#160;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; <span class="comment">// virtual ON_Geometry GetBBox override </span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</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="l00092"></a><span class="lineno"> 92</span>&#160;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</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="l00094"></a><span class="lineno"> 94</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="l00095"></a><span class="lineno"> 95</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="comment">// (optional - default uses Transform for 2d and 3d objects)</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</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="l00099"></a><span class="lineno"> 99</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="l00100"></a><span class="lineno"> 100</span>&#160; ) <span class="keyword">override</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="comment"> /////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;<span class="comment"></span> <span class="comment">// ON_Curve overrides</span></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; <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="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">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="l00108"></a><span class="lineno"> 108</span>&#160;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</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="l00110"></a><span class="lineno"> 110</span>&#160; <span class="keywordtype">double</span>* <span class="comment">// array of length SpanCount() + 1 </span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; ) <span class="keyword">const override</span>; <span class="comment">// </span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160;</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</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="l00114"></a><span class="lineno"> 114</span>&#160; <span class="comment">// ( or a good estimate if curve spans are not algebraic )</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; ) <span class="keyword">const override</span>; </div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160;</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="comment">// (optional - override if curve is piecewise smooth)</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ada3a3e9951cc02187a6a9a0e715e70e0">GetParameterTolerance</a>( <span class="comment">// returns tminus &lt; tplus: parameters tminus &lt;= s &lt;= tplus</span></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <span class="keywordtype">double</span>, <span class="comment">// t = parameter in domain</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="keywordtype">double</span>*, <span class="comment">// tminus</span></div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <span class="keywordtype">double</span>* <span class="comment">// tplus</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</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="l00126"></a><span class="lineno"> 126</span>&#160; <span class="comment">// between specified points</span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</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="l00128"></a><span class="lineno"> 128</span>&#160; ) <span class="keyword">const 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="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="l00131"></a><span class="lineno"> 131</span>&#160; <span class="comment">// specified points</span></div><div class="line"><a name="l00132"></a><span class="lineno"> 132</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="l00133"></a><span class="lineno"> 133</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="l00134"></a><span class="lineno"> 134</span>&#160; <span class="comment">// are filled in</span></div><div class="line"><a name="l00135"></a><span class="lineno"> 135</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="l00136"></a><span class="lineno"> 136</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160;</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</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="l00139"></a><span class="lineno"> 139</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="l00140"></a><span class="lineno"> 140</span>&#160; <span class="comment">// are filled in</span></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</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="l00142"></a><span class="lineno"> 142</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160;</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</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="l00145"></a><span class="lineno"> 145</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="l00146"></a><span class="lineno"> 146</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="l00147"></a><span class="lineno"> 147</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160;</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</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="l00150"></a><span class="lineno"> 150</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="l00151"></a><span class="lineno"> 151</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="l00152"></a><span class="lineno"> 152</span>&#160; <span class="comment">// periodic.)</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160;</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</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="l00155"></a><span class="lineno"> 155</span>&#160; <span class="keywordtype">void</span> </div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; </div><div class="line"><a name="l00158"></a><span class="lineno"> 158</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="l00159"></a><span class="lineno"> 159</span>&#160; <span class="comment">// Domain changes from [a,b] to [-b,-a]</span></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160;</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</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="l00162"></a><span class="lineno"> 162</span>&#160; <span class="keywordtype">double</span>, <span class="comment">// evaluation parameter</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; <span class="keywordtype">int</span>, <span class="comment">// number of derivatives (&gt;=0)</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <span class="keywordtype">int</span>, <span class="comment">// array stride (&gt;=Dimension())</span></div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="keywordtype">double</span>*, <span class="comment">// array of length stride*(ndir+1)</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</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="l00167"></a><span class="lineno"> 167</span>&#160; <span class="comment">// 0 = default</span></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; <span class="comment">// &lt; 0 to evaluate from below, </span></div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <span class="comment">// &gt; 0 to evaluate from above</span></div><div class="line"><a name="l00170"></a><span class="lineno"> 170</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="l00171"></a><span class="lineno"> 171</span>&#160; <span class="comment">// repeated evaluations</span></div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160;</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</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="l00175"></a><span class="lineno"> 175</span>&#160; <span class="comment">// with desired accuracy.</span></div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; <span class="comment">// 1: success - returned NURBS parameterization</span></div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; <span class="comment">// matches the curve&#39;s to wthe desired accuracy</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; <span class="comment">// 2: success - returned NURBS point locus matches</span></div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="comment">// the curve&#39;s to the desired accuracy but, on</span></div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <span class="comment">// the interior of the curve&#39;s domain, the </span></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="comment">// curve&#39;s parameterization and the NURBS</span></div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; <span class="comment">// parameterization may not match to the </span></div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; <span class="comment">// desired accuracy.</span></div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; <a class="code" href="../../d3/d6a/class_o_n___nurbs_curve.html">ON_NurbsCurve</a>&amp;,</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; <span class="keywordtype">double</span> = 0.0,</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</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 2d curve</span></div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160;<span class="comment"> /////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160;<span class="comment"></span> <span class="comment">// Interface</span></div><div class="line"><a name="l00191"></a><span class="lineno"><a class="line" href="../../d5/d1a/class_o_n___curve_on_surface.html#af0007b43ee65b543b5ee15dbd70f1999"> 191</a></span>&#160;</div><div class="line"><a name="l00192"></a><span class="lineno"><a class="line" href="../../d5/d1a/class_o_n___curve_on_surface.html#aba03c1fe15cddb2fdc21f6836850a206"> 192</a></span>&#160; <span class="comment">// ~ON_CurveOnSurface() deletes these classes. Use a</span></div><div class="line"><a name="l00193"></a><span class="lineno"><a class="line" href="../../d5/d1a/class_o_n___curve_on_surface.html#a23095e710096fac618a74372d7b793ab"> 193</a></span>&#160; <span class="comment">// ON_CurveProxy and/or ON_SurfaceProxy wrapper if you don&#39;t want</span></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <span class="comment">// the destructor to destroy the curves</span></div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* m_c2; <span class="comment">// REQUIRED parameter space (2d) curve</span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* m_c3; <span class="comment">// OPTIONAL 3d curve (approximation) to srf(crv2(t))</span></div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; <a class="code" href="../../da/da0/class_o_n___surface.html">ON_Surface</a>* m_s; </div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160;};</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;</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</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_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___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_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_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___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_ada3a3e9951cc02187a6a9a0e715e70e0"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ada3a3e9951cc02187a6a9a0e715e70e0">ON_Curve::GetParameterTolerance</a></div><div class="ttdeci">virtual bool GetParameterTolerance(double t, double *tminus, double *tplus) const</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"><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_on_surface_html"><div class="ttname"><a href="../../d5/d1a/class_o_n___curve_on_surface.html">ON_CurveOnSurface</a></div><div class="ttdef"><b>Definition:</b> opennurbs_curveonsurface.h:20</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_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___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___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___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_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___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___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___surface_html"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html">ON_Surface</a></div><div class="ttdef"><b>Definition:</b> opennurbs_surface.h:57</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>
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