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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_SUM_SURFACE_INC_)</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#define OPENNURBS_SUM_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"> 20</span>&#160;<span class="keyword">class </span><a class="code" href="../../dc/d1c/class_o_n___sum_surface.html">ON_SumSurface</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;<span class="comment">// surface of revolution</span></div><div class="line"><a name="l00023"></a><span class="lineno"><a class="line" href="../../dc/d1c/class_o_n___sum_surface.html"> 23</a></span>&#160;<span class="keyword">class </span>ON_CLASS <a class="code" href="../../dc/d1c/class_o_n___sum_surface.html">ON_SumSurface</a> : <span class="keyword">public</span> <a class="code" href="../../da/da0/class_o_n___surface.html">ON_Surface</a></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;{</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; ON_OBJECT_DECLARE(<a class="code" href="../../dc/d1c/class_o_n___sum_surface.html">ON_SumSurface</a>);</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="keyword">public</span>:</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; <span class="comment">// virtual ON_Object::DestroyRuntimeCache override</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; <span class="keywordtype">void</span> <a class="code" href="../../da/da0/class_o_n___surface.html#acfce039c891be4737a8710462b3336dc">DestroyRuntimeCache</a>( <span class="keywordtype">bool</span> bDelete = <span class="keyword">true</span> ) <span class="keyword">override</span>;</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; <span class="comment">// for expert users</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; <span class="comment">// surface-PointAt(s,t) </span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <span class="comment">// = m_curve[0]-&gt;PointAt(s) + m_curve[1]-&gt;PointAt(t) + m_basepoint;</span></div><div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="../../dc/d1c/class_o_n___sum_surface.html#a758710a32dcd85762d079bec86ee3666"> 36</a></span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* m_curve[2]; <span class="comment">// m_curve[0] and m_curve[1] are deleted by ~ON_SumSuface. </span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <span class="comment">// Use a ON_ProxyCurve if this is problem.</span></div><div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="../../dc/d1c/class_o_n___sum_surface.html#a4b70250772ff73d929e6e6d37d190fbe"> 38</a></span>&#160; <a class="code" href="../../d5/dae/class_o_n__3d_vector.html">ON_3dVector</a> <a class="code" href="../../dc/d1c/class_o_n___sum_surface.html#a4b70250772ff73d929e6e6d37d190fbe">m_basepoint</a>;</div><div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="../../dc/d1c/class_o_n___sum_surface.html#a148f377ae667447f12591f8f49353b2f"> 39</a></span>&#160; <a class="code" href="../../d1/d17/class_o_n___bounding_box.html">ON_BoundingBox</a> <a class="code" href="../../dc/d1c/class_o_n___sum_surface.html#a148f377ae667447f12591f8f49353b2f">m_bbox</a>; <span class="comment">// lazy evaluation used in ON_SumSurface::BoundingBox()</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;</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;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160;<span class="comment"> Use ON_SumSurface::New(...) instead of new ON_SumSurface(...)</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;<span class="comment"> Pointer to an ON_SumSurface. Destroy by calling delete.</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;<span class="comment"> See static ON_Brep* ON_Brep::New() for details.</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="keyword">static</span> <a class="code" href="../../dc/d1c/class_o_n___sum_surface.html">ON_SumSurface</a>* New();</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keyword">static</span> <a class="code" href="../../dc/d1c/class_o_n___sum_surface.html">ON_SumSurface</a>* New( <span class="keyword">const</span> <a class="code" href="../../dc/d1c/class_o_n___sum_surface.html">ON_SumSurface</a>&amp; rev_surface );</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <a class="code" href="../../dc/d1c/class_o_n___sum_surface.html">ON_SumSurface</a>();</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keyword">virtual</span> ~<a class="code" href="../../dc/d1c/class_o_n___sum_surface.html">ON_SumSurface</a>();</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <a class="code" href="../../dc/d1c/class_o_n___sum_surface.html">ON_SumSurface</a>( <span class="keyword">const</span> <a class="code" href="../../dc/d1c/class_o_n___sum_surface.html">ON_SumSurface</a>&amp; );</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; <a class="code" href="../../dc/d1c/class_o_n___sum_surface.html">ON_SumSurface</a>&amp; <a class="code" href="../../da/da0/class_o_n___surface.html#a762f6ef1b3f3ca34753be6dce8afdc2d">operator=</a>(<span class="keyword">const</span> <a class="code" href="../../dc/d1c/class_o_n___sum_surface.html">ON_SumSurface</a>&amp;);</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;<span class="comment"> Extrude a curve to create a surface.</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;<span class="comment"> curve - [in] curve is copied.</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160;<span class="comment"> extrusion_vector - [in] extrusion vector (must be nonzero)</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;<span class="comment"> true if a valid surface is created.</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <span class="keywordtype">bool</span> Create( <span class="keyword">const</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>&amp; curve, <a class="code" href="../../d5/dae/class_o_n__3d_vector.html">ON_3dVector</a> extrusion_vector );</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160;</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"> Description:</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160;<span class="comment"> Extrude a curve to create a surface.</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160;<span class="comment"> pCurve - [in] pointer to a curve. This pointer will</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;<span class="comment"> be assigned to m_curve[0] and will be deleted</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;<span class="comment"> by ~ON_SumSurface.</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;<span class="comment"> extrusion_vector - [in] extrusion vector (must be nonzero)</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;<span class="comment"> true if a valid surface is created.</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keywordtype">bool</span> Create( <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* pCurve, <a class="code" href="../../d5/dae/class_o_n__3d_vector.html">ON_3dVector</a> extrusion_vector );</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160;<span class="comment"> Extrude a curve along a path to create a surface.</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160;<span class="comment"> curve - [in] curve is copied.</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;<span class="comment"> path_curve - [in] path_curve is copied.</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;<span class="comment"> true if a valid surface is created.</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="keywordtype">bool</span> Create( <span class="keyword">const</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>&amp; curve, </div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <span class="keyword">const</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>&amp; path_curve</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; );</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160;<span class="comment"> Extrude a curve to create a surface.</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;<span class="comment"> pCurve - [in] pointer to a curve. This pointer will</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160;<span class="comment"> be assigned to m_curve[0] and will be deleted</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160;<span class="comment"> by ~ON_SumSurface.</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;<span class="comment"> pPathCurve - [in] pointer to a path curve. This pointer will</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160;<span class="comment"> be assigned to m_curve[1] and will be deleted</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160;<span class="comment"> by ~ON_SumSurface.</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;<span class="comment"> true if a valid surface is created.</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="keywordtype">bool</span> Create( </div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* pCurve, </div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* pPathCurve</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;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="keywordtype">void</span> Destroy();</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; <span class="keywordtype">void</span> <a class="code" href="../../d9/d7b/class_o_n___object.html#ad265ca0da2d751edaa9d2b5ab2540c6a">EmergencyDestroy</a>();</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"></span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;<span class="comment"> ////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;<span class="comment"></span> <span class="comment">//</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="comment">// overrides of virtual ON_Object functions</span></div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <span class="comment">//</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <span class="comment">// virtual ON_Object::SizeOf override</span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a2f753f161c711fb529aa98649757beee">SizeOf</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160;</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="comment">// virtual ON_Object::DataCRC override</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; ON__UINT32 <a class="code" href="../../d9/d7b/class_o_n___object.html#af51d5fcec9379ad9b7a56ac4dfc9a8b2">DataCRC</a>(ON__UINT32 current_remainder) <span class="keyword">const override</span>;</div><div class="line"><a name="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="../../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="l00131"></a><span class="lineno"> 131</span>&#160;</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</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="l00133"></a><span class="lineno"> 133</span>&#160;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <span class="comment">// Use ON_BinaryArchive::WriteObject() and ON_BinaryArchive::ReadObject()</span></div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; <span class="comment">// for top level serialization. These Read()/Write() members should just</span></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; <span class="comment">// write/read specific definitions. In particular, they should not write/</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <span class="comment">// read any chunk typecode or length information. The default </span></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <span class="comment">// implementations return false and do nothing.</span></div><div class="line"><a name="l00139"></a><span class="lineno"> 139</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="l00140"></a><span class="lineno"> 140</span>&#160; <a class="code" href="../../db/d16/class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp; <span class="comment">// serialize definition to binary archive</span></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160;</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</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="l00144"></a><span class="lineno"> 144</span>&#160; <a class="code" href="../../db/d16/class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp; <span class="comment">// restore definition from binary archive</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160;<span class="comment"> ////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160;<span class="comment"></span> <span class="comment">//</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; <span class="comment">// overrides of virtual ON_Geometry functions</span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <span class="comment">//</span></div><div class="line"><a name="l00151"></a><span class="lineno"> 151</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="l00152"></a><span class="lineno"> 152</span>&#160;</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="comment">// virtual ON_Geometry GetBBox override </span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</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="l00155"></a><span class="lineno"> 155</span>&#160;</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="keywordtype">void</span> <a class="code" href="../../df/de0/class_o_n___geometry.html#af8dfbd8534986bbd327a6ad812e374be">ClearBoundingBox</a>() <span class="keyword">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="../../df/de0/class_o_n___geometry.html#add710872e89bc29e1ed1321b3e70b1b1">Transform</a>( </div><div class="line"><a name="l00159"></a><span class="lineno"> 159</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="l00160"></a><span class="lineno"> 160</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160;</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <span class="comment">// virtual ON_Geometry::IsDeformable() override</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../df/de0/class_o_n___geometry.html#af156cd098b9e68fab5f32e76b1e274e2">IsDeformable</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="comment">// virtual ON_Geometry::MakeDeformable() override</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../df/de0/class_o_n___geometry.html#ac3d5cb708edca66a4a6c1992299329a3">MakeDeformable</a>() <span class="keyword">override</span>;</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160;<span class="comment"> ////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160;<span class="comment"></span> <span class="comment">//</span></div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <span class="comment">// overrides of virtual ON_Surface functions</span></div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="comment">//</span></div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a809b19c6594c924289e15c25f2b37573">SetDomain</a>( </div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <span class="keywordtype">int</span> dir, <span class="comment">// 0 sets first parameter&#39;s domain, 1 gets second parameter&#39;s domain</span></div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; <span class="keywordtype">double</span> t0, </div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; <span class="keywordtype">double</span> t1</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160;</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a> <a class="code" href="../../da/da0/class_o_n___surface.html#aa38f6584ca9d96a6be9e04823bc5585a">Domain</a>(</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <span class="keywordtype">int</span> <span class="comment">// 0 gets first parameter&#39;s domain, 1 gets second parameter&#39;s domain</span></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160;</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160;<span class="comment"> Get an estimate of the size of the rectangle that would</span></div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160;<span class="comment"> be created if the 3d surface where flattened into a rectangle.</span></div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160;<span class="comment"> width - [out] (corresponds to the first surface parameter)</span></div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160;<span class="comment"> height - [out] (corresponds to the first surface parameter)</span></div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160;<span class="comment"> overrides virtual ON_Surface::GetSurfaceSize</span></div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160;<span class="comment"> true if successful.</span></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a92b4795bd65f16952895c05319c75128">GetSurfaceSize</a>( </div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <span class="keywordtype">double</span>* width, </div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; <span class="keywordtype">double</span>* height </div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160;</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; <span class="keywordtype">int</span> <a class="code" href="../../da/da0/class_o_n___surface.html#ac9b0d48e7470d0b6c12bd29ad299f093">SpanCount</a>(</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; <span class="keywordtype">int</span> <span class="comment">// 0 gets first parameter&#39;s domain, 1 gets second parameter&#39;s domain</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; ) <span class="keyword">const override</span>; <span class="comment">// number of smooth spans in curve</span></div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160;</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a3d851661de5ad899125bc593cb36de72">GetSpanVector</a>( <span class="comment">// span &quot;knots&quot; </span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; <span class="keywordtype">int</span>, <span class="comment">// 0 gets first parameter&#39;s domain, 1 gets second parameter&#39;s domain</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; <span class="keywordtype">double</span>* <span class="comment">// array of length SpanCount() + 1 </span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; ) <span class="keyword">const override</span>; <span class="comment">// </span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160;</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; <span class="keywordtype">int</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a3c9535e38883dc5a1e2982066b0f0387">Degree</a>( <span class="comment">// returns maximum algebraic degree of any span </span></div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; <span class="comment">// ( or a good estimate if curve spans are not algebraic )</span></div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; <span class="keywordtype">int</span> <span class="comment">// 0 gets first parameter&#39;s domain, 1 gets second parameter&#39;s domain</span></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; ) <span class="keyword">const override</span>; </div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160;</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a0e3fc2e55337769949de67ac8f90a195">GetParameterTolerance</a>( <span class="comment">// returns tminus &lt; tplus: parameters tminus &lt;= s &lt;= tplus</span></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; <span class="keywordtype">int</span>, <span class="comment">// 0 gets first parameter, 1 gets second parameter</span></div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; <span class="keywordtype">double</span>, <span class="comment">// t = parameter in domain</span></div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; <span class="keywordtype">double</span>*, <span class="comment">// tminus</span></div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; <span class="keywordtype">double</span>* <span class="comment">// tplus</span></div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160;</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160;<span class="comment"> Test a surface to see if it is planar.</span></div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160;<span class="comment"> plane - [out] if not nullptr and true is returned,</span></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160;<span class="comment"> the plane parameters are filled in.</span></div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160;<span class="comment"> tolerance - [in] tolerance to use when checking</span></div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160;<span class="comment"> true if there is a plane such that the maximum distance from</span></div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160;<span class="comment"> the surface to the plane is &lt;= tolerance.</span></div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160;<span class="comment"> Overrides virtual ON_Surface::IsPlanar.</span></div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#ae72f5823aecfe07f1fd086a2e1deebc2">IsPlanar</a>(</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; <a class="code" href="../../d4/d48/class_o_n___plane.html">ON_Plane</a>* plane = <span class="keyword">nullptr</span>,</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; <span class="keywordtype">double</span> tolerance = ON_ZERO_TOLERANCE</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160;</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a8ef48a6603b29fd617456581a073d544">IsClosed</a>( <span class="comment">// true if surface is closed in direction</span></div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; <span class="keywordtype">int</span> <span class="comment">// dir 0 = &quot;s&quot;, 1 = &quot;t&quot;</span></div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160;</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a81785cd872ac150e058af4a8c80feab1">IsPeriodic</a>( <span class="comment">// true if surface is periodic in direction</span></div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; <span class="keywordtype">int</span> <span class="comment">// dir 0 = &quot;s&quot;, 1 = &quot;t&quot;</span></div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160;</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#ad72300a940e9460fd427fc6235aed9fb">IsSingular</a>( <span class="comment">// true if surface side is collapsed to a point</span></div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; <span class="keywordtype">int</span> <span class="comment">// side of parameter space to test</span></div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; <span class="comment">// 0 = south, 1 = east, 2 = north, 3 = west</span></div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; </div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160;<span class="comment"> Search for a derivatitive, tangent, or curvature </span></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160;<span class="comment"> discontinuity.</span></div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160;<span class="comment"> dir - [in] If 0, then &quot;u&quot; parameter is checked. If 1, then</span></div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160;<span class="comment"> the &quot;v&quot; parameter is checked.</span></div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160;<span class="comment"> c - [in] type of continity to test for.</span></div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160;<span class="comment"> t0 - [in] Search begins at t0. If there is a discontinuity</span></div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160;<span class="comment"> at t0, it will be ignored. This makes it </span></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160;<span class="comment"> possible to repeatedly call GetNextDiscontinuity</span></div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160;<span class="comment"> and step through the discontinuities.</span></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160;<span class="comment"> t1 - [in] (t0 != t1) If there is a discontinuity at t1 is </span></div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160;<span class="comment"> will be ingored unless c is a locus discontinuity</span></div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160;<span class="comment"> type and t1 is at the start or end of the curve.</span></div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160;<span class="comment"> t - [out] if a discontinuity is found, then *t reports the</span></div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160;<span class="comment"> parameter at the discontinuity.</span></div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160;<span class="comment"> hint - [in/out] if GetNextDiscontinuity will be called </span></div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160;<span class="comment"> repeatedly, passing a &quot;hint&quot; with initial value *hint=0</span></div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160;<span class="comment"> will increase the speed of the search. </span></div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160;<span class="comment"> dtype - [out] if not nullptr, *dtype reports the kind of </span></div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160;<span class="comment"> discontinuity found at *t. A value of 1 means the first </span></div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160;<span class="comment"> derivative or unit tangent was discontinuous. A value </span></div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160;<span class="comment"> of 2 means the second derivative or curvature was </span></div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160;<span class="comment"> discontinuous. A value of 0 means teh curve is not</span></div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160;<span class="comment"> closed, a locus discontinuity test was applied, and</span></div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160;<span class="comment"> t1 is at the start of end of the curve.</span></div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160;<span class="comment"> cos_angle_tolerance - [in] default = cos(1 degree) Used only</span></div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160;<span class="comment"> when c is ON::continuity::G1_continuous or ON::continuity::G2_continuous. If the</span></div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160;<span class="comment"> cosine of the angle between two tangent vectors is </span></div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160;<span class="comment"> &lt;= cos_angle_tolerance, then a G1 discontinuity is reported.</span></div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160;<span class="comment"> curvature_tolerance - [in] (default = ON_SQRT_EPSILON) Used </span></div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160;<span class="comment"> only when c is ON::continuity::G2_continuous. If K0 and K1 are </span></div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160;<span class="comment"> curvatures evaluated from above and below and </span></div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160;<span class="comment"> |K0 - K1| &gt; curvature_tolerance, then a curvature </span></div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160;<span class="comment"> discontinuity is reported.</span></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160;<span class="comment"> Parametric continuity tests c = (C0_continuous, ..., G2_continuous):</span></div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160;<span class="comment"> true if a parametric discontinuity was found strictly </span></div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160;<span class="comment"> between t0 and t1. Note well that all curves are </span></div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160;<span class="comment"> parametrically continuous at the ends of their domains.</span></div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160;<span class="comment"> Locus continuity tests c = (C0_locus_continuous, ...,G2_locus_continuous):</span></div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160;<span class="comment"> true if a locus discontinuity was found strictly between</span></div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160;<span class="comment"> t0 and t1 or at t1 is the at the end of a curve.</span></div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>&#160;<span class="comment"> Note well that all open curves (IsClosed()=false) are locus</span></div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160;<span class="comment"> discontinuous at the ends of their domains. All closed </span></div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160;<span class="comment"> curves (IsClosed()=true) are at least C0_locus_continuous at </span></div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160;<span class="comment"> the ends of their domains.</span></div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a51d481385216963fadeb2b035f85e91d">GetNextDiscontinuity</a>( </div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160; <span class="keywordtype">int</span> dir,</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160; ON::continuity c,</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160; <span class="keywordtype">double</span> t0,</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160; <span class="keywordtype">double</span> t1,</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160; <span class="keywordtype">double</span>* t,</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160; <span class="keywordtype">int</span>* hint=<span class="keyword">nullptr</span>,</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160; <span class="keywordtype">int</span>* dtype=<span class="keyword">nullptr</span>,</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160; <span class="keywordtype">double</span> cos_angle_tolerance=ON_DEFAULT_ANGLE_TOLERANCE_COSINE,</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160; <span class="keywordtype">double</span> curvature_tolerance=ON_SQRT_EPSILON</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160;</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160;<span class="comment"> Test continuity at a surface parameter value.</span></div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160;<span class="comment"> c - [in] continuity to test for</span></div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160;<span class="comment"> s - [in] surface parameter to test</span></div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160;<span class="comment"> t - [in] surface parameter to test</span></div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160;<span class="comment"> hint - [in] evaluation hint</span></div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160;<span class="comment"> point_tolerance - [in] if the distance between two points is</span></div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160;<span class="comment"> greater than point_tolerance, then the surface is not C0.</span></div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160;<span class="comment"> d1_tolerance - [in] if the difference between two first derivatives is</span></div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160;<span class="comment"> greater than d1_tolerance, then the surface is not C1.</span></div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160;<span class="comment"> d2_tolerance - [in] if the difference between two second derivatives is</span></div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160;<span class="comment"> greater than d2_tolerance, then the surface is not C2.</span></div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160;<span class="comment"> cos_angle_tolerance - [in] default = cos(1 degree) Used only when</span></div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160;<span class="comment"> c is ON::continuity::G1_continuous or ON::continuity::G2_continuous. If the cosine</span></div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160;<span class="comment"> of the angle between two normal vectors </span></div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160;<span class="comment"> is &lt;= cos_angle_tolerance, then a G1 discontinuity is reported.</span></div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160;<span class="comment"> curvature_tolerance - [in] (default = ON_SQRT_EPSILON) Used only when</span></div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160;<span class="comment"> c is ON::continuity::G2_continuous. If K0 and K1 are curvatures evaluated</span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160;<span class="comment"> from above and below and |K0 - K1| &gt; curvature_tolerance,</span></div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160;<span class="comment"> then a curvature discontinuity is reported.</span></div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>&#160;<span class="comment"> true if the surface has at least the c type continuity at the parameter t.</span></div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160;<span class="comment"> Overrides virtual ON_Surface::IsContinuous</span></div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a5d3ac3b32555c7213b1c2b25705f3d47">IsContinuous</a>(</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>&#160; ON::continuity c,</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>&#160; <span class="keywordtype">double</span> s, </div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>&#160; <span class="keywordtype">double</span> t, </div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>&#160; <span class="keywordtype">int</span>* hint = <span class="keyword">nullptr</span>,</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>&#160; <span class="keywordtype">double</span> point_tolerance=ON_ZERO_TOLERANCE,</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>&#160; <span class="keywordtype">double</span> d1_tolerance=ON_ZERO_TOLERANCE,</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>&#160; <span class="keywordtype">double</span> d2_tolerance=ON_ZERO_TOLERANCE,</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>&#160; <span class="keywordtype">double</span> cos_angle_tolerance=ON_DEFAULT_ANGLE_TOLERANCE_COSINE,</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>&#160; <span class="keywordtype">double</span> curvature_tolerance=ON_SQRT_EPSILON</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>&#160;</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a42238365821cec5dfd38785a2a196404">Reverse</a>( <span class="comment">// reverse parameterizatrion, Domain changes from [a,b] to [-b,-a]</span></div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>&#160; <span class="keywordtype">int</span> <span class="comment">// dir 0 = &quot;s&quot;, 1 = &quot;t&quot;</span></div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>&#160;</div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a6c02248d5c3280246e2732a14d84ca58">Transpose</a>() <span class="keyword">override</span>; <span class="comment">// transpose surface parameterization (swap &quot;s&quot; and &quot;t&quot;)</span></div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>&#160;</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a136dfc12c71af401bc90f2f5e87186f1">Evaluate</a>( <span class="comment">// returns false if unable to evaluate</span></div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>&#160; <span class="keywordtype">double</span>, <span class="keywordtype">double</span>, <span class="comment">// evaluation parameters</span></div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>&#160; <span class="keywordtype">int</span>, <span class="comment">// number of derivatives (&gt;=0)</span></div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>&#160; <span class="keywordtype">int</span>, <span class="comment">// array stride (&gt;=Dimension())</span></div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>&#160; <span class="keywordtype">double</span>*, <span class="comment">// array of length stride*(ndir+1)*(ndir+2)/2</span></div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>&#160; <span class="keywordtype">int</span> = 0, <span class="comment">// optional - determines which quadrant to evaluate from</span></div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>&#160; <span class="comment">// 0 = default</span></div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>&#160; <span class="comment">// 1 from NE quadrant</span></div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>&#160; <span class="comment">// 2 from NW quadrant</span></div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>&#160; <span class="comment">// 3 from SW quadrant</span></div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>&#160; <span class="comment">// 4 from SE quadrant</span></div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>&#160; <span class="keywordtype">int</span>* = 0 <span class="comment">// optional - evaluation hint (int[2]) used to speed</span></div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>&#160; <span class="comment">// repeated evaluations</span></div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>&#160;</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* <a class="code" href="../../da/da0/class_o_n___surface.html#a91faf7314053e7ebb3ebf12663647f5a">IsoCurve</a>(</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>&#160; <span class="keywordtype">int</span>, <span class="comment">// 0 first parameter varies and second parameter is constant</span></div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>&#160; <span class="comment">// e.g., point on IsoCurve(0,c) at t is srf(t,c)</span></div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>&#160; <span class="comment">// 1 first parameter is constant and second parameter varies</span></div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>&#160; <span class="comment">// e.g., point on IsoCurve(1,c) at t is srf(c,t)</span></div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>&#160; <span class="keywordtype">double</span> <span class="comment">// value of constant parameter </span></div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>&#160;</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>&#160; <span class="keywordtype">int</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a4c4be57a220937dbf697548f3505a693">GetNurbForm</a>( <span class="comment">// returns 0: unable to create NURBS representation</span></div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>&#160; <span class="comment">// with desired accuracy.</span></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>&#160; <span class="comment">// 1: success - returned NURBS parameterization</span></div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>&#160; <span class="comment">// matches the surface&#39;s to wthe desired accuracy</span></div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>&#160; <span class="comment">// 2: success - returned NURBS point locus matches</span></div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>&#160; <span class="comment">// the surfaces&#39;s to the desired accuracy but, on</span></div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>&#160; <span class="comment">// the interior of the surface&#39;s domain, the </span></div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>&#160; <span class="comment">// surface&#39;s parameterization and the NURBS</span></div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>&#160; <span class="comment">// parameterization may not match to the </span></div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>&#160; <span class="comment">// desired accuracy.</span></div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>&#160; <a class="code" href="../../de/ddc/class_o_n___nurbs_surface.html">ON_NurbsSurface</a>&amp;,</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>&#160; <span class="keywordtype">double</span> = 0.0</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>&#160;</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>&#160; <span class="keywordtype">int</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a032695e1c765ace3b5b9888d746b49f7">HasNurbForm</a>( <span class="comment">// returns 0: unable to create NURBS representation</span></div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>&#160; <span class="comment">// with desired accuracy.</span></div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>&#160; <span class="comment">// 1: success - returned NURBS parameterization</span></div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>&#160; <span class="comment">// matches the surface&#39;s to wthe desired accuracy</span></div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>&#160; <span class="comment">// 2: success - returned NURBS point locus matches</span></div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>&#160; <span class="comment">// the surfaces&#39;s to the desired accuracy but, on</span></div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>&#160; <span class="comment">// the interior of the surface&#39;s domain, the </span></div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>&#160; <span class="comment">// surface&#39;s parameterization and the NURBS</span></div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>&#160; <span class="comment">// parameterization may not match to the </span></div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>&#160; <span class="comment">// desired accuracy.</span></div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>&#160;</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#aafce544c2cced9832d8210dd78fc4878">GetSurfaceParameterFromNurbFormParameter</a>(</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>&#160; <span class="keywordtype">double</span> nurbs_s, <span class="keywordtype">double</span> nurbs_t,</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>&#160; <span class="keywordtype">double</span>* surface_s, <span class="keywordtype">double</span>* surface_t</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>&#160;</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#abe2d9cf149007d0eb444525254a2eacc">GetNurbFormParameterFromSurfaceParameter</a>(</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>&#160; <span class="keywordtype">double</span> surface_s, <span class="keywordtype">double</span> surface_t,</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>&#160; <span class="keywordtype">double</span>* nurbs_s, <span class="keywordtype">double</span>* nurbs_t</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>&#160;</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>&#160;</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span>&#160;<span class="comment"> Removes the portions of the surface outside of the specified interval.</span></div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>&#160;<span class="comment"> dir - [in] 0 The domain specifies an sub-interval of Domain(0)</span></div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>&#160;<span class="comment"> (the first surface parameter).</span></div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>&#160;<span class="comment"> 1 The domain specifies an sub-interval of Domain(1)</span></div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>&#160;<span class="comment"> (the second surface parameter).</span></div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>&#160;<span class="comment"> domain - [in] interval of the surface to keep. If dir is 0, then</span></div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>&#160;<span class="comment"> the portions of the surface with parameters (s,t) satisfying</span></div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>&#160;<span class="comment"> s &lt; Domain(0).Min() or s &gt; Domain(0).Max() are trimmed away.</span></div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>&#160;<span class="comment"> If dir is 1, then the portions of the surface with parameters</span></div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>&#160;<span class="comment"> (s,t) satisfying t &lt; Domain(1).Min() or t &gt; Domain(1).Max() </span></div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>&#160;<span class="comment"> are trimmed away.</span></div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#ab88b3c29cccf29717a83ee349e2d85d7">Trim</a>(</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>&#160; <span class="keywordtype">int</span> dir,</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>&#160; <span class="keyword">const</span> <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a>&amp; domain</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>&#160;</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>&#160;<span class="comment"> Where possible, analytically extends surface to include domain.</span></div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>&#160;<span class="comment"> dir - [in] 0 new Domain(0) will include domain.</span></div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>&#160;<span class="comment"> (the first surface parameter).</span></div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>&#160;<span class="comment"> 1 new Domain(1) will include domain.</span></div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>&#160;<span class="comment"> (the second surface parameter).</span></div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>&#160;<span class="comment"> domain - [in] if domain is not included in surface domain, </span></div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>&#160;<span class="comment"> surface will be extended so that its domain includes domain. </span></div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>&#160;<span class="comment"> Will not work if surface is closed in direction dir. </span></div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>&#160;<span class="comment"> Original surface is identical to the restriction of the</span></div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>&#160;<span class="comment"> resulting surface to the original surface domain, </span></div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>&#160;<span class="comment"> true if successful.</span></div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a9242e8a46e876db63423ce7d6f3f1ef8">Extend</a>(</div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span>&#160; <span class="keywordtype">int</span> dir,</div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span>&#160; <span class="keyword">const</span> <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a>&amp; domain</div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>&#160;</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span>&#160;<span class="comment"> Splits (divides) the surface into two parts at the </span></div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>&#160;<span class="comment"> specified parameter.</span></div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>&#160;<span class="comment"> dir - [in] 0 The surface is split vertically. The &quot;west&quot; side</span></div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>&#160;<span class="comment"> is returned in &quot;west_or_south_side&quot; and the &quot;east&quot;</span></div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>&#160;<span class="comment"> side is returned in &quot;east_or_north_side&quot;.</span></div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>&#160;<span class="comment"> 1 The surface is split horizontally. The &quot;south&quot; side</span></div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>&#160;<span class="comment"> is returned in &quot;west_or_south_side&quot; and the &quot;north&quot;</span></div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>&#160;<span class="comment"> side is returned in &quot;east_or_north_side&quot;.</span></div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>&#160;<span class="comment"> c - [in] value of constant parameter in interval returned</span></div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>&#160;<span class="comment"> by Domain(dir)</span></div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>&#160;<span class="comment"> west_or_south_side - [out] west/south portion of surface returned here</span></div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>&#160;<span class="comment"> east_or_north_side - [out] east/north portion of surface returned here</span></div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>&#160;<span class="comment"> Example:</span></div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>&#160;<span class="comment"> ON_SumSurface srf = ...;</span></div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>&#160;<span class="comment"> int dir = 1;</span></div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>&#160;<span class="comment"> ON_SumSurface* south_side = 0;</span></div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>&#160;<span class="comment"> ON_SumSurface* north_side = 0;</span></div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>&#160;<span class="comment"> srf.Split( dir, srf.Domain(dir).Mid() south_side, north_side );</span></div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/da0/class_o_n___surface.html#a7aa8df2f579c5547324a42f284bcbc6c">Split</a>(</div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span>&#160; <span class="keywordtype">int</span> dir,</div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>&#160; <span class="keywordtype">double</span> c,</div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>&#160; <a class="code" href="../../da/da0/class_o_n___surface.html">ON_Surface</a>*&amp; west_or_south_side,</div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>&#160; <a class="code" href="../../da/da0/class_o_n___surface.html">ON_Surface</a>*&amp; east_or_north_side</div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>&#160;};</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>&#160;</div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>&#160;<span class="preprocessor">#endif</span></div><div class="ttc" id="class_o_n___sum_surface_html_a148f377ae667447f12591f8f49353b2f"><div class="ttname"><a href="../../dc/d1c/class_o_n___sum_surface.html#a148f377ae667447f12591f8f49353b2f">ON_SumSurface::m_bbox</a></div><div class="ttdeci">ON_BoundingBox m_bbox</div><div class="ttdef"><b>Definition:</b> opennurbs_sumsurface.h:39</div></div>
<div class="ttc" id="class_o_n___surface_html_a6c02248d5c3280246e2732a14d84ca58"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a6c02248d5c3280246e2732a14d84ca58">ON_Surface::Transpose</a></div><div class="ttdeci">virtual bool Transpose()=0</div></div>
<div class="ttc" id="class_o_n___geometry_html_add710872e89bc29e1ed1321b3e70b1b1"><div class="ttname"><a href="../../df/de0/class_o_n___geometry.html#add710872e89bc29e1ed1321b3e70b1b1">ON_Geometry::Transform</a></div><div class="ttdeci">virtual bool Transform(const ON_Xform &amp;xform)</div><div class="ttdoc">Transforms the object. </div></div>
<div class="ttc" id="class_o_n___surface_html_a8ef48a6603b29fd617456581a073d544"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a8ef48a6603b29fd617456581a073d544">ON_Surface::IsClosed</a></div><div class="ttdeci">virtual bool IsClosed(int) const</div></div>
<div class="ttc" id="class_o_n___sum_surface_html_a4b70250772ff73d929e6e6d37d190fbe"><div class="ttname"><a href="../../dc/d1c/class_o_n___sum_surface.html#a4b70250772ff73d929e6e6d37d190fbe">ON_SumSurface::m_basepoint</a></div><div class="ttdeci">ON_3dVector m_basepoint</div><div class="ttdef"><b>Definition:</b> opennurbs_sumsurface.h:38</div></div>
<div class="ttc" id="class_o_n___surface_html_a809b19c6594c924289e15c25f2b37573"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a809b19c6594c924289e15c25f2b37573">ON_Surface::SetDomain</a></div><div class="ttdeci">bool SetDomain(int dir, ON_Interval domain)</div></div>
<div class="ttc" id="class_o_n___surface_html_a762f6ef1b3f3ca34753be6dce8afdc2d"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a762f6ef1b3f3ca34753be6dce8afdc2d">ON_Surface::operator=</a></div><div class="ttdeci">ON_Surface &amp; operator=(const ON_Surface &amp;)</div></div>
<div class="ttc" id="class_o_n___surface_html_a81785cd872ac150e058af4a8c80feab1"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a81785cd872ac150e058af4a8c80feab1">ON_Surface::IsPeriodic</a></div><div class="ttdeci">virtual bool IsPeriodic(int) const</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___surface_html_a4c4be57a220937dbf697548f3505a693"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a4c4be57a220937dbf697548f3505a693">ON_Surface::GetNurbForm</a></div><div class="ttdeci">virtual int GetNurbForm(ON_NurbsSurface &amp;nurbs_surface, double tolerance=0.0) const</div><div class="ttdoc">Get a NURBS surface representation of this surface. </div></div>
<div class="ttc" id="class_o_n___nurbs_surface_html"><div class="ttname"><a href="../../de/ddc/class_o_n___nurbs_surface.html">ON_NurbsSurface</a></div><div class="ttdef"><b>Definition:</b> opennurbs_nurbssurface.h:62</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___geometry_html_ac3d5cb708edca66a4a6c1992299329a3"><div class="ttname"><a href="../../df/de0/class_o_n___geometry.html#ac3d5cb708edca66a4a6c1992299329a3">ON_Geometry::MakeDeformable</a></div><div class="ttdeci">virtual bool MakeDeformable()</div><div class="ttdoc">If possible, converts the object into a form that can be accuratly modified with &quot;squishy&quot; transforma...</div></div>
<div class="ttc" id="class_o_n___surface_html_a3d851661de5ad899125bc593cb36de72"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a3d851661de5ad899125bc593cb36de72">ON_Surface::GetSpanVector</a></div><div class="ttdeci">virtual bool GetSpanVector(int dir, double *span_vector) const =0</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___surface_html_aafce544c2cced9832d8210dd78fc4878"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#aafce544c2cced9832d8210dd78fc4878">ON_Surface::GetSurfaceParameterFromNurbFormParameter</a></div><div class="ttdeci">virtual bool GetSurfaceParameterFromNurbFormParameter(double nurbs_s, double nurbs_t, double *surface_s, double *surface_t) const</div></div>
<div class="ttc" id="class_o_n___surface_html_ae72f5823aecfe07f1fd086a2e1deebc2"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#ae72f5823aecfe07f1fd086a2e1deebc2">ON_Surface::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 surface to see if it is planar. </div></div>
<div class="ttc" id="class_o_n___surface_html_aa38f6584ca9d96a6be9e04823bc5585a"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#aa38f6584ca9d96a6be9e04823bc5585a">ON_Surface::Domain</a></div><div class="ttdeci">virtual ON_Interval Domain(int dir) const =0</div></div>
<div class="ttc" id="class_o_n___surface_html_a3c9535e38883dc5a1e2982066b0f0387"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a3c9535e38883dc5a1e2982066b0f0387">ON_Surface::Degree</a></div><div class="ttdeci">virtual int Degree(int dir) const =0</div></div>
<div class="ttc" id="class_o_n___bounding_box_html"><div class="ttname"><a href="../../d1/d17/class_o_n___bounding_box.html">ON_BoundingBox</a></div><div class="ttdef"><b>Definition:</b> opennurbs_bounding_box.h:25</div></div>
<div class="ttc" id="class_o_n___surface_html_ac9b0d48e7470d0b6c12bd29ad299f093"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#ac9b0d48e7470d0b6c12bd29ad299f093">ON_Surface::SpanCount</a></div><div class="ttdeci">virtual int SpanCount(int dir) const =0</div></div>
<div class="ttc" id="class_o_n___surface_html_abe2d9cf149007d0eb444525254a2eacc"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#abe2d9cf149007d0eb444525254a2eacc">ON_Surface::GetNurbFormParameterFromSurfaceParameter</a></div><div class="ttdeci">virtual bool GetNurbFormParameterFromSurfaceParameter(double surface_s, double surface_t, double *nurbs_s, double *nurbs_t) const</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___geometry_html_af8dfbd8534986bbd327a6ad812e374be"><div class="ttname"><a href="../../df/de0/class_o_n___geometry.html#af8dfbd8534986bbd327a6ad812e374be">ON_Geometry::ClearBoundingBox</a></div><div class="ttdeci">virtual void ClearBoundingBox()</div><div class="ttdoc">Some objects cache bounding box information. If you modify an object, then call ClearBoundingBox() to...</div></div>
<div class="ttc" id="class_o_n___surface_html_a7aa8df2f579c5547324a42f284bcbc6c"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a7aa8df2f579c5547324a42f284bcbc6c">ON_Surface::Split</a></div><div class="ttdeci">virtual bool Split(int dir, double c, ON_Surface *&amp;west_or_south_side, ON_Surface *&amp;east_or_north_side) const</div><div class="ttdoc">Splits (divides) the surface into two parts at the specified parameter. </div></div>
<div class="ttc" id="class_o_n___surface_html_ab88b3c29cccf29717a83ee349e2d85d7"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#ab88b3c29cccf29717a83ee349e2d85d7">ON_Surface::Trim</a></div><div class="ttdeci">virtual bool Trim(int dir, const ON_Interval &amp;domain)</div><div class="ttdoc">Removes the portions of the surface outside of the specified interval. </div></div>
<div class="ttc" id="class_o_n___object_html_a21c7b04a80f1806c3a45f72d7c491a44"><div class="ttname"><a href="../../d9/d7b/class_o_n___object.html#a21c7b04a80f1806c3a45f72d7c491a44">ON_Object::Dump</a></div><div class="ttdeci">virtual void Dump(ON_TextLog &amp;) const</div><div class="ttdoc">Creates a text dump of the object. </div></div>
<div class="ttc" id="class_o_n___object_html_ad265ca0da2d751edaa9d2b5ab2540c6a"><div class="ttname"><a href="../../d9/d7b/class_o_n___object.html#ad265ca0da2d751edaa9d2b5ab2540c6a">ON_Object::EmergencyDestroy</a></div><div class="ttdeci">void EmergencyDestroy()</div><div class="ttdoc">Sets m_user_data_list = 0. </div></div>
<div class="ttc" id="class_o_n___geometry_html_af156cd098b9e68fab5f32e76b1e274e2"><div class="ttname"><a href="../../df/de0/class_o_n___geometry.html#af156cd098b9e68fab5f32e76b1e274e2">ON_Geometry::IsDeformable</a></div><div class="ttdeci">virtual bool IsDeformable() const</div></div>
<div class="ttc" id="class_o_n___surface_html_a2f753f161c711fb529aa98649757beee"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a2f753f161c711fb529aa98649757beee">ON_Surface::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___surface_html_acfce039c891be4737a8710462b3336dc"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#acfce039c891be4737a8710462b3336dc">ON_Surface::DestroyRuntimeCache</a></div><div class="ttdeci">void DestroyRuntimeCache(bool bDelete=true) override</div><div class="ttdoc">virtual ON_Object::DestroyRuntimeCache override </div></div>
<div class="ttc" id="class_o_n___surface_html_a9242e8a46e876db63423ce7d6f3f1ef8"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a9242e8a46e876db63423ce7d6f3f1ef8">ON_Surface::Extend</a></div><div class="ttdeci">virtual bool Extend(int dir, const ON_Interval &amp;domain)</div><div class="ttdoc">Pure virtual function. Default returns false. Where possible, analytically extends surface to include...</div></div>
<div class="ttc" id="class_o_n___sum_surface_html"><div class="ttname"><a href="../../dc/d1c/class_o_n___sum_surface.html">ON_SumSurface</a></div><div class="ttdoc">surface of revolution </div><div class="ttdef"><b>Definition:</b> opennurbs_sumsurface.h:23</div></div>
<div class="ttc" id="class_o_n___surface_html_a91faf7314053e7ebb3ebf12663647f5a"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a91faf7314053e7ebb3ebf12663647f5a">ON_Surface::IsoCurve</a></div><div class="ttdeci">virtual ON_Curve * IsoCurve(int dir, double c) const</div><div class="ttdoc">Get isoparametric curve. </div></div>
<div class="ttc" id="class_o_n___surface_html_a0e3fc2e55337769949de67ac8f90a195"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a0e3fc2e55337769949de67ac8f90a195">ON_Surface::GetParameterTolerance</a></div><div class="ttdeci">virtual bool GetParameterTolerance(int dir, double t, double *tminus, double *tplus) const</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___object_html_af51d5fcec9379ad9b7a56ac4dfc9a8b2"><div class="ttname"><a href="../../d9/d7b/class_o_n___object.html#af51d5fcec9379ad9b7a56ac4dfc9a8b2">ON_Object::DataCRC</a></div><div class="ttdeci">virtual ON__UINT32 DataCRC(ON__UINT32 current_remainder) const</div><div class="ttdoc">Returns a CRC calculated from the information that defines the object. This CRC can be used as a quic...</div></div>
<div class="ttc" id="class_o_n___plane_html"><div class="ttname"><a href="../../d4/d48/class_o_n___plane.html">ON_Plane</a></div><div class="ttdef"><b>Definition:</b> opennurbs_plane.h:20</div></div>
<div class="ttc" id="class_o_n___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___surface_html_a42238365821cec5dfd38785a2a196404"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a42238365821cec5dfd38785a2a196404">ON_Surface::Reverse</a></div><div class="ttdeci">virtual bool Reverse(int)=0</div></div>
<div class="ttc" id="class_o_n___surface_html_ad72300a940e9460fd427fc6235aed9fb"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#ad72300a940e9460fd427fc6235aed9fb">ON_Surface::IsSingular</a></div><div class="ttdeci">virtual bool IsSingular(int) const</div></div>
<div class="ttc" id="class_o_n___surface_html_a92b4795bd65f16952895c05319c75128"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a92b4795bd65f16952895c05319c75128">ON_Surface::GetSurfaceSize</a></div><div class="ttdeci">virtual bool GetSurfaceSize(double *width, double *height) const</div><div class="ttdoc">Get an estimate of the size of the rectangle that would be created if the 3d surface where flattened ...</div></div>
<div class="ttc" id="class_o_n__3d_vector_html"><div class="ttname"><a href="../../d5/dae/class_o_n__3d_vector.html">ON_3dVector</a></div><div class="ttdef"><b>Definition:</b> opennurbs_point.h:1152</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___surface_html_a032695e1c765ace3b5b9888d746b49f7"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a032695e1c765ace3b5b9888d746b49f7">ON_Surface::HasNurbForm</a></div><div class="ttdeci">virtual int HasNurbForm() const</div><div class="ttdoc">Is there a NURBS surface representation of this surface. </div></div>
<div class="ttc" id="class_o_n___surface_html_a136dfc12c71af401bc90f2f5e87186f1"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a136dfc12c71af401bc90f2f5e87186f1">ON_Surface::Evaluate</a></div><div class="ttdeci">virtual bool Evaluate(double u, double v, int num_der, int array_stride, double *der_array, int quadrant=0, int *hint=0) const =0</div><div class="ttdoc">work horse evaluator </div></div>
<div class="ttc" id="class_o_n___surface_html_a51d481385216963fadeb2b035f85e91d"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a51d481385216963fadeb2b035f85e91d">ON_Surface::GetNextDiscontinuity</a></div><div class="ttdeci">virtual bool GetNextDiscontinuity(int dir, ON::continuity c, double t0, double t1, double *t, int *hint=nullptr, int *dtype=nullptr, double cos_angle_tolerance=ON_DEFAULT_ANGLE_TOLERANCE_COSINE, double curvature_tolerance=ON_SQRT_EPSILON) const</div><div class="ttdoc">Search for a derivatitive, tangent, or curvature discontinuity. </div></div>
<div class="ttc" id="class_o_n___surface_html_a5d3ac3b32555c7213b1c2b25705f3d47"><div class="ttname"><a href="../../da/da0/class_o_n___surface.html#a5d3ac3b32555c7213b1c2b25705f3d47">ON_Surface::IsContinuous</a></div><div class="ttdeci">virtual bool IsContinuous(ON::continuity c, double s, 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 surface parameter value. </div></div>
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