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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/* $NoKeywords: $ */</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// Copyright (c) 1993-2012 Robert McNeel &amp; Associates. All rights reserved.</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">// OpenNURBS, Rhinoceros, and Rhino3D are registered trademarks of Robert</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment">// McNeel &amp; Associates.</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment">// THIS SOFTWARE IS PROVIDED &quot;AS IS&quot; WITHOUT EXPRESS OR IMPLIED WARRANTY.</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment">// ALL IMPLIED WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE AND OF</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment">// MERCHANTABILITY ARE HEREBY DISCLAIMED.</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment">// </span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment">// For complete openNURBS copyright information see &lt;http://www.opennurbs.org&gt;.</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment">//</span><span class="comment"></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment">////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"></span>*/</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment">////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment"></span><span class="comment">//</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="comment">// Definition of curve proxy object</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="comment">//</span><span class="comment"></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="comment">////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#if !defined(OPENNURBS_CURVEPROXY_INC_)</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#define OPENNURBS_CURVEPROXY_INC_</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="comment">Description:</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="comment"> An ON_CurveProxy is a reference to an ON_Curve.</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="comment"> One may specify a subdomain of the referenced curve</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="comment"> and apply a affine reparameterization, possibly reversing</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="comment"> the orientation. The underlying curve cannot be modified through</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="comment"> the curve proxy.</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="comment">Details:</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;<span class="comment"> The reference to the &quot;real_curve&quot; is const, so most functions</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;<span class="comment"> which modify an ON_Curve will fail when passed an ON_CurveProxy.</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;<span class="comment">*/</span></div><div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="../../dc/dda/class_o_n___curve_proxy.html"> 37</a></span>&#160;<span class="keyword">class </span><a class="code" href="../../dc/dda/class_o_n___curve_proxy.html">ON_CurveProxy</a>;</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;<span class="keyword">class </span>ON_CLASS <a class="code" href="../../dc/dda/class_o_n___curve_proxy.html">ON_CurveProxy</a> : <span class="keyword">public</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;{</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; ON_OBJECT_DECLARE(<a class="code" href="../../dc/dda/class_o_n___curve_proxy.html">ON_CurveProxy</a>);</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <a class="code" href="../../dc/dda/class_o_n___curve_proxy.html">ON_CurveProxy</a>() ON_NOEXCEPT;</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; virtual ~<a class="code" href="../../dc/dda/class_o_n___curve_proxy.html">ON_CurveProxy</a>();</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; ON_CurveProxy( const ON_CurveProxy&amp; );</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; ON_CurveProxy&amp; operator=(const ON_CurveProxy&amp;);</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;<span class="preprocessor">#if defined(ON_HAS_RVALUEREF)</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="comment">// rvalue copy constructor</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; ON_CurveProxy( ON_CurveProxy&amp;&amp; ) ON_NOEXCEPT;</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="comment">// The rvalue assignment operator calls ON_Object::operator=(ON_Object&amp;&amp;)</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="comment">// which could throw exceptions. See the implementation of</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="comment">// ON_Object::operator=(ON_Object&amp;&amp;) for details.</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; ON_CurveProxy&amp; operator=( ON_CurveProxy&amp;&amp; );</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="comment">// virtual ON_Object::DestroyRuntimeCache override</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="keywordtype">void</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a4ad9a73ad53707fbebfc904e772f605b">DestroyRuntimeCache</a>( <span class="keywordtype">bool</span> bDelete = <span class="keyword">true</span> ) <span class="keyword">override</span>;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; ON_CurveProxy( <span class="keyword">const</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* );</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; ON_CurveProxy( <span class="keyword">const</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>*, <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a> );</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <span class="comment">// virtual ON_Object::SizeOf override</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#af13b163bb51b3972593f6ccf89d18950">SizeOf</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="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">// virtual ON_Object::DataCRC override</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</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="l00072"></a><span class="lineno"> 72</span>&#160;</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;<span class="comment"> Sets the curve geometry that &quot;this&quot; is a proxy for. </span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;<span class="comment"> Sets proxy domain to proxy_curve-&gt;Domain().</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;<span class="comment"> real_curve - [in]</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="keywordtype">void</span> SetProxyCurve( <span class="keyword">const</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* real_curve );</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160;<span class="comment"> Sets the curve geometry that &quot;this&quot; is a proxy for. </span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160;<span class="comment"> Sets proxy domain to proxy_curve-&gt;Domain().</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"> real_curve - [in]</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;<span class="comment"> real_curve_subdomain - [in] increasing sub interval of</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;<span class="comment"> real_curve-&gt;Domain(). This interval defines the</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;<span class="comment"> portion the &quot;real&quot; curve geometry that &quot;this&quot; proxy</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;<span class="comment"> uses.</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160;<span class="comment"> bReversed - [in] true if the parameterization of &quot;this&quot; proxy</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160;<span class="comment"> as a curve is reversed from the underlying &quot;real&quot; curve</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160;<span class="comment"> geometry.</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="keywordtype">void</span> SetProxyCurve( <span class="keyword">const</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* real_curve, </div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a> real_curve_subdomain</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; );</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160;<span class="comment"> &quot;Real&quot; curve geometry that &quot;this&quot; is a proxy for.</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keyword">const</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* ProxyCurve() <span class="keyword">const</span>;</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160;<span class="comment"> Sets portion of the &quot;real&quot; curve that this proxy represents.</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160;<span class="comment"> Does NOT change the domain of &quot;this&quot; curve.</span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160;<span class="comment"> proxy_curve_subdomain - [in] increasing sub interval of</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160;<span class="comment"> ProxyCurve()-&gt;Domain(). This interval defines the</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160;<span class="comment"> portion the curve geometry that &quot;this&quot; proxy uses.</span></div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;<span class="comment"> This function is poorly named. It does NOT set the proxy</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160;<span class="comment"> curve&#39;s domain. It does set the interval of the &quot;real&quot;</span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160;<span class="comment"> curve for which &quot;this&quot; is a proxy.</span></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="keywordtype">bool</span> SetProxyCurveDomain( <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a> proxy_curve_subdomain );</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160;</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;<span class="comment"> Returns:</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160;<span class="comment"> Sub interval of the &quot;real&quot; curve&#39;s domain that &quot;this&quot; uses.</span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160;<span class="comment"> This interval is not necessarily the same as &quot;this&quot; curve&#39;s</span></div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160;<span class="comment"> domain.</span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160;<span class="comment"> This function is poorly named. It does NOT get the proxy</span></div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;<span class="comment"> curve&#39;s domain. It does get the evaluation interval</span></div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;<span class="comment"> of the &quot;real&quot; curve for which &quot;this&quot; is a proxy.</span></div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a> ProxyCurveDomain() <span class="keyword">const</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">/*</span></div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160;<span class="comment"> True if &quot;this&quot; as a curve is reversed from the &quot;real&quot; curve</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160;<span class="comment"> geometry.</span></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; <span class="keywordtype">bool</span> ProxyCurveIsReversed() <span class="keyword">const</span>;</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160;</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160;<span class="keyword">protected</span>:</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; <span class="comment">// Used by CRhinoPolyEdgeSegment::Create() to restore the</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="comment">// value of ON_CurveProxy::m_bReversed.</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; <span class="keywordtype">void</span> SetProxyCurveIsReversed(<span class="keywordtype">bool</span> bReversed);</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160;</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160;<span class="keyword">public</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"> Parameters:</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160;<span class="comment"> t - [in] parameter for &quot;this&quot; curve</span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160;<span class="comment"> Corresponding parameter in m_real_curve&#39;s domain.</span></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="keywordtype">double</span> RealCurveParameter( <span class="keywordtype">double</span> t ) <span class="keyword">const</span>;</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160;</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160;<span class="comment"> real_curve_parameter - [in] m_real_curve parameter</span></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160;<span class="comment"> Corresponding parameter for &quot;this&quot; curve</span></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; <span class="keywordtype">double</span> ThisCurveParameter( <span class="keywordtype">double</span> real_curve_parameter ) <span class="keyword">const</span>;</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160;</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <span class="comment">// &quot;real&quot; curve geometry that &quot;this&quot; is a proxy for.</span></div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="keyword">const</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* m_real_curve;</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; <span class="comment">// If true, the parameterization of &quot;this&quot; proxy is</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; <span class="comment">// the reverse of the m_curve parameterization.</span></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; <span class="keywordtype">bool</span> m_bReversed; </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160;</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <span class="comment">// The m_domain interval is always increasing and included in </span></div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="comment">// m_curve-&gt;Domain(). The m_domain interval defines the portion</span></div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; <span class="comment">// of m_curve that &quot;this&quot; proxy uses and it can be a proper</span></div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="comment">// sub-interval of m_curve-&gt;Domain().</span></div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a> m_real_curve_domain;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160;</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; <span class="comment">// The evaluation domain of this curve. If &quot;t&quot; is a parameter for</span></div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; <span class="comment">// &quot;this&quot; and &quot;r&quot; is a parameter for m_curve, then when m_bReversed==false</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; <span class="comment">// we have </span></div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="comment">// t = m_this_domain.ParameterAt(m_real_curve_domain.NormalizedParameterAt(r))</span></div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <span class="comment">// r = m_real_curve_domain.ParameterAt(m_this_domain.NormalizedParameterAt(t))</span></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="comment">// and when m_bReversed==true we have </span></div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; <span class="comment">// t = m_this_domain.ParameterAt(1 - m_real_curve_domain.NormalizedParameterAt(r))</span></div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; <span class="comment">// r = m_real_curve_domain.ParameterAt(1 - m_this_domain.NormalizedParameterAt(t))</span></div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a> m_this_domain;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160;</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a> RealCurveInterval( <span class="keyword">const</span> <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a>* sub_domain ) <span class="keyword">const</span>;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160;</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160;<span class="comment"> Get a duplicate of the curve.</span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160;<span class="comment"> A duplicate of the curve. </span></div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160;<span class="comment"> The caller must delete the returned curve.</span></div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160;<span class="comment"> For non-ON_CurveProxy objects, this simply duplicates the curve using</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160;<span class="comment"> ON_Object::Duplicate.</span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160;<span class="comment"> For ON_CurveProxy objects, this duplicates the actual proxy curve </span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160;<span class="comment"> geometry and, if necessary, trims and reverse the result to that</span></div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160;<span class="comment"> the returned curve&#39;s parameterization and locus match the proxy curve&#39;s.</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>* <a class="code" href="../../d4/d5a/class_o_n___curve.html#ab1b9d5f72971851b4790f4f47d51a846">DuplicateCurve</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; <span class="comment"></span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160;<span class="comment"> /////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160;<span class="comment"></span> <span class="comment">// ON_Object overrides</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160;</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</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="l00209"></a><span class="lineno"> 209</span>&#160;</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</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="l00211"></a><span class="lineno"> 211</span>&#160;</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d9/d7b/class_o_n___object.html#a16eb9ab6bf0d0a614655cf9cd055871a">Write</a>( <span class="comment">// returns false - nothing serialized</span></div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; <a class="code" href="../../db/d16/class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp; <span class="comment">// open binary file </span></div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160;</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d9/d7b/class_o_n___object.html#a09ac9742ead91dd8f9cdd579bcbfed10">Read</a>( <span class="comment">// returns false - nothing serialized</span></div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; <a class="code" href="../../db/d16/class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp; <span class="comment">// open binary file</span></div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160;<span class="comment"> /////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160;<span class="comment"></span> <span class="comment">// ON_Geometry overrides</span></div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160;</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</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="l00224"></a><span class="lineno"> 224</span>&#160;</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; <span class="comment">// virtual ON_Geometry GetBBox override </span></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</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="l00227"></a><span class="lineno"> 227</span>&#160;</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a9f59373850214fc53a6c793596aece78">Transform</a>( </div><div class="line"><a name="l00229"></a><span class="lineno"> 229</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="l00230"></a><span class="lineno"> 230</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160;<span class="comment"> /////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160;<span class="comment"></span> <span class="comment">// ON_Curve overrides</span></div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160;</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; <span class="comment">// Returns:</span></div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; <span class="comment">// domain of the curve.</span></div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; <span class="comment">// Remarks:</span></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; <span class="comment">// If m_bReverse is true, this returns the reverse</span></div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; <span class="comment">// of m_domain.</span></div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ae3a1e3ea7c924246a43754aa03790432">Domain</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160;</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; <span class="comment">/* virtual ON_Curve::SetDomain() override */</span></div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ac8dc771e7ebcfac85baf26c7e6b21c70">SetDomain</a>( </div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; <span class="keywordtype">double</span> t0, </div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; <span class="keywordtype">double</span> t1 </div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160;</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ac8dc771e7ebcfac85baf26c7e6b21c70">SetDomain</a>( <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a> domain );</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160;</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; <span class="keywordtype">int</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ad162b90ba333e4f3dd5b13823e1b5f27">SpanCount</a>() <span class="keyword">const override</span>; <span class="comment">// number of smooth spans in curve</span></div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160;</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ae619c78b795518c251c5ac32d34d568f">GetSpanVector</a>(</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160; <span class="keywordtype">double</span>*</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; ) <span class="keyword">const override</span>; </div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160;</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; <span class="keywordtype">int</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a3c1b90bd24333d58d584016e3b40225d">Degree</a>( <span class="comment">// returns maximum algebraic degree of any span </span></div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; <span class="comment">// ( or a good estimate if curve spans are not algebraic )</span></div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; ) <span class="keyword">const override</span>; </div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160;</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160; <span class="comment">// (optional - override if curve is piecewise smooth)</span></div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ada3a3e9951cc02187a6a9a0e715e70e0">GetParameterTolerance</a>( <span class="comment">// returns tminus &lt; tplus: parameters tminus &lt;= s &lt;= tplus</span></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; <span class="keywordtype">double</span>, <span class="comment">// t = parameter in domain</span></div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; <span class="keywordtype">double</span>*, <span class="comment">// tminus</span></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160; <span class="keywordtype">double</span>* <span class="comment">// tplus</span></div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160;</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a325716a9735ab59416bf6800a23ce5fc">IsLinear</a>( <span class="comment">// true if curve locus is a line segment between</span></div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160; <span class="comment">// between specified points</span></div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; <span class="keywordtype">double</span> = ON_ZERO_TOLERANCE <span class="comment">// tolerance to use when checking linearity</span></div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160;</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; <span class="comment">// virtual override of ON_Curve::IsPolyline</span></div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; <span class="keywordtype">int</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a467d9a30eb67c198df47da3abc1a87cd">IsPolyline</a>(</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; <a class="code" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray&lt;ON_3dPoint&gt;</a>* pline_points = <span class="keyword">nullptr</span>,</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; <a class="code" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray&lt;double&gt;</a>* pline_t = <span class="keyword">nullptr</span></div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160;</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#adb5f04bc1eb13842d60c7c9778740ca8">IsArc</a>( <span class="comment">// ON_Arc.m_angle &gt; 0 if curve locus is an arc between</span></div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; <span class="comment">// specified points</span></div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; <span class="keyword">const</span> <a class="code" href="../../d4/d48/class_o_n___plane.html">ON_Plane</a>* = <span class="keyword">nullptr</span>, <span class="comment">// if not nullptr, test is performed in this plane</span></div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; <a class="code" href="../../d3/ddf/class_o_n___arc.html">ON_Arc</a>* = <span class="keyword">nullptr</span>, <span class="comment">// if not nullptr and true is returned, then arc parameters</span></div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; <span class="comment">// are filled in</span></div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; <span class="keywordtype">double</span> = ON_ZERO_TOLERANCE <span class="comment">// tolerance to use when checking</span></div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160;</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#aa98dcc86caf6da5cdac543e52d695bd4">IsPlanar</a>(</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; <a class="code" href="../../d4/d48/class_o_n___plane.html">ON_Plane</a>* = <span class="keyword">nullptr</span>, <span class="comment">// if not nullptr and true is returned, then plane parameters</span></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; <span class="comment">// are filled in</span></div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; <span class="keywordtype">double</span> = ON_ZERO_TOLERANCE <span class="comment">// tolerance to use when checking</span></div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160;</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a7c480c610e37703041d9eacb502d5ae8">IsInPlane</a>(</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160; <span class="keyword">const</span> <a class="code" href="../../d4/d48/class_o_n___plane.html">ON_Plane</a>&amp;, <span class="comment">// plane to test</span></div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; <span class="keywordtype">double</span> = ON_ZERO_TOLERANCE <span class="comment">// tolerance to use when checking</span></div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160;</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a8108d949eee27fb0ab7b2b4339df5b7f">IsClosed</a>( <span class="comment">// true if curve is closed (either curve has</span></div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160; <span class="keywordtype">void</span> <span class="comment">// clamped end knots and euclidean location of start</span></div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>&#160; ) <span class="keyword">const override</span>; <span class="comment">// CV = euclidean location of end CV, or curve is</span></div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160; <span class="comment">// periodic.)</span></div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160;</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ad27af42168a1be8f54fff24aed354aab">IsPeriodic</a>( <span class="comment">// true if curve is a single periodic segment</span></div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160; <span class="keywordtype">void</span> </div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160; </div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160;<span class="comment"> Search for a derivatitive, tangent, or curvature discontinuity.</span></div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160;<span class="comment"> c - [in] type of continity to test for. If ON::continuity::C1_continuous</span></div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160;<span class="comment"> t0 - [in] search begins at t0</span></div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160;<span class="comment"> t1 - [in] (t0 &lt; t1) search ends at t1</span></div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160;<span class="comment"> t - [out] if a discontinuity is found, the *t reports the</span></div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160;<span class="comment"> parameter at the discontinuity.</span></div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160;<span class="comment"> hint - [in/out] if GetNextDiscontinuity will be called repeatedly,</span></div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160;<span class="comment"> passing a &quot;hint&quot; with initial value *hint=0 will increase the speed</span></div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160;<span class="comment"> of the search. </span></div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160;<span class="comment"> dtype - [out] if not nullptr, *dtype reports the kind of discontinuity</span></div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160;<span class="comment"> found at *t. A value of 1 means the first derivative or unit tangent</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160;<span class="comment"> was discontinuous. A value of 2 means the second derivative or</span></div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160;<span class="comment"> curvature was discontinuous.</span></div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160;<span class="comment"> cos_angle_tolerance - [in] default = cos(1 degree) Used only when</span></div><div class="line"><a name="l00323"></a><span class="lineno"> 323</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="l00324"></a><span class="lineno"> 324</span>&#160;<span class="comment"> of the angle between two tangent vectors </span></div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160;<span class="comment"> is &lt;= cos_angle_tolerance, then a G1 discontinuity is reported.</span></div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160;<span class="comment"> curvature_tolerance - [in] (default = ON_SQRT_EPSILON) Used only when</span></div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160;<span class="comment"> c is ON::continuity::G2_continuous or ON::continuity::Gsmooth_continuous. </span></div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160;<span class="comment"> ON::continuity::G2_continuous:</span></div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160;<span class="comment"> If K0 and K1 are curvatures evaluated</span></div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160;<span class="comment"> from above and below and |K0 - K1| &gt; curvature_tolerance,</span></div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160;<span class="comment"> then a curvature discontinuity is reported.</span></div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160;<span class="comment"> ON::continuity::Gsmooth_continuous:</span></div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160;<span class="comment"> If K0 and K1 are curvatures evaluated from above and below</span></div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160;<span class="comment"> and the angle between K0 and K1 is at least twice angle tolerance</span></div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160;<span class="comment"> or ||K0| - |K1|| &gt; (max(|K0|,|K1|) &gt; curvature_tolerance,</span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160;<span class="comment"> then a curvature discontinuity is reported.</span></div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>&#160;<span class="comment"> true if a discontinuity was found on the interior of the interval (t0,t1).</span></div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>&#160;<span class="comment"> Overrides ON_Curve::GetNextDiscontinuity.</span></div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a2deaf514586ac4b16daa45a97d4bd8e1">GetNextDiscontinuity</a>( </div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160; ON::continuity c,</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>&#160; <span class="keywordtype">double</span> t0,</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>&#160; <span class="keywordtype">double</span> t1,</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">int</span>* dtype=<span class="keyword">nullptr</span>,</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>&#160; <span class="keywordtype">double</span> cos_angle_tolerance=ON_DEFAULT_ANGLE_TOLERANCE_COSINE,</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>&#160; <span class="keywordtype">double</span> curvature_tolerance=ON_SQRT_EPSILON</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>&#160;</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>&#160; <span class="comment">/*</span></div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>&#160;<span class="comment"> Description:</span></div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>&#160;<span class="comment"> Test continuity at a curve parameter value.</span></div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>&#160;<span class="comment"> Parameters:</span></div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>&#160;<span class="comment"> c - [in] continuity to test for</span></div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>&#160;<span class="comment"> t - [in] parameter to test</span></div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>&#160;<span class="comment"> hint - [in] evaluation hint</span></div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>&#160;<span class="comment"> point_tolerance - [in] if the distance between two points is</span></div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>&#160;<span class="comment"> greater than point_tolerance, then the curve is not C0.</span></div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>&#160;<span class="comment"> d1_tolerance - [in] if the difference between two first derivatives is</span></div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>&#160;<span class="comment"> greater than d1_tolerance, then the curve is not C1.</span></div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>&#160;<span class="comment"> d2_tolerance - [in] if the difference between two second derivatives is</span></div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>&#160;<span class="comment"> greater than d2_tolerance, then the curve is not C2.</span></div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>&#160;<span class="comment"> cos_angle_tolerance - [in] default = cos(1 degree) Used only when</span></div><div class="line"><a name="l00367"></a><span class="lineno"> 367</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="l00368"></a><span class="lineno"> 368</span>&#160;<span class="comment"> of the angle between two tangent vectors </span></div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>&#160;<span class="comment"> is &lt;= cos_angle_tolerance, then a G1 discontinuity is reported.</span></div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>&#160;<span class="comment"> curvature_tolerance - [in] (default = ON_SQRT_EPSILON) Used only when</span></div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>&#160;<span class="comment"> c is ON::continuity::G2_continuous or ON::continuity::Gsmooth_continuous. </span></div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>&#160;<span class="comment"> ON::continuity::G2_continuous:</span></div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>&#160;<span class="comment"> If K0 and K1 are curvatures evaluated</span></div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>&#160;<span class="comment"> from above and below and |K0 - K1| &gt; curvature_tolerance,</span></div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>&#160;<span class="comment"> then a curvature discontinuity is reported.</span></div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>&#160;<span class="comment"> ON::continuity::Gsmooth_continuous:</span></div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>&#160;<span class="comment"> If K0 and K1 are curvatures evaluated from above and below</span></div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>&#160;<span class="comment"> and the angle between K0 and K1 is at least twice angle tolerance</span></div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>&#160;<span class="comment"> or ||K0| - |K1|| &gt; (max(|K0|,|K1|) &gt; curvature_tolerance,</span></div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>&#160;<span class="comment"> then a curvature discontinuity is reported.</span></div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>&#160;<span class="comment"> Returns:</span></div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>&#160;<span class="comment"> true if the curve has at least the c type continuity at the parameter t.</span></div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>&#160;<span class="comment"> Remarks:</span></div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>&#160;<span class="comment"> Overrides ON_Curve::IsContinuous.</span></div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ac0a69004a8792a80abb7c9ee19f98f6a">IsContinuous</a>(</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>&#160; ON::continuity c,</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>&#160; <span class="keywordtype">double</span> t, </div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>&#160; <span class="keywordtype">int</span>* hint = <span class="keyword">nullptr</span>,</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>&#160; <span class="keywordtype">double</span> point_tolerance=ON_ZERO_TOLERANCE,</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>&#160; <span class="keywordtype">double</span> d1_tolerance=ON_ZERO_TOLERANCE,</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>&#160; <span class="keywordtype">double</span> d2_tolerance=ON_ZERO_TOLERANCE,</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>&#160; <span class="keywordtype">double</span> cos_angle_tolerance=ON_DEFAULT_ANGLE_TOLERANCE_COSINE,</div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>&#160; <span class="keywordtype">double</span> curvature_tolerance=ON_SQRT_EPSILON</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>&#160;</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a506b1c3a2ad743b87d5a4085fe3d0b1a">Reverse</a>() <span class="keyword">override</span>; <span class="comment">// reverse parameterizatrion</span></div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>&#160; <span class="comment">// Domain changes from [a,b] to [-b,-a]</span></div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>&#160;</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#acb8caa121873abcf53f050a8953a70bb">Evaluate</a>( <span class="comment">// returns false if unable to evaluate</span></div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>&#160; <span class="keywordtype">double</span>, <span class="comment">// evaluation parameter</span></div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>&#160; <span class="keywordtype">int</span>, <span class="comment">// number of derivatives (&gt;=0)</span></div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>&#160; <span class="keywordtype">int</span>, <span class="comment">// array stride (&gt;=Dimension())</span></div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>&#160; <span class="keywordtype">double</span>*, <span class="comment">// array of length stride*(ndir+1)</span></div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>&#160; <span class="keywordtype">int</span> = 0, <span class="comment">// optional - determines which side to evaluate from</span></div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>&#160; <span class="comment">// 0 = default</span></div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>&#160; <span class="comment">// &lt; 0 to evaluate from below, </span></div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>&#160; <span class="comment">// &gt; 0 to evaluate from above</span></div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>&#160; <span class="keywordtype">int</span>* = 0 <span class="comment">// optional - evaluation hint (int) used to speed</span></div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>&#160; <span class="comment">// repeated evaluations</span></div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>&#160;</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>&#160;</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>&#160; <span class="comment">// override of virtual ON_Curve::Trim</span></div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#abd583766fdcd75cc269e87aeab40c4a7">Trim</a>(</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</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="l00417"></a><span class="lineno"> 417</span>&#160; ) <span class="keyword">override</span>;</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>&#160;</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>&#160; <span class="comment">// override of virtual ON_Curve::Split</span></div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a2d6c16e8ddfe8f2cde8c4431db67a337">Split</a>(</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span>&#160; <span class="keywordtype">double</span> t,</div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>*&amp; left_side,</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span>&#160; <a class="code" href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a>*&amp; right_side</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span>&#160;</div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>&#160; <span class="keywordtype">int</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a67dd944c24cda3d319fa5ac73bb95c2e">GetNurbForm</a>( <span class="comment">// returns 0: unable to create NURBS representation</span></div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>&#160; <span class="comment">// with desired accuracy.</span></div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>&#160; <span class="comment">// 1: success - returned NURBS parameterization</span></div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>&#160; <span class="comment">// matches the curve&#39;s to wthe desired accuracy</span></div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>&#160; <span class="comment">// 2: success - returned NURBS point locus matches</span></div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>&#160; <span class="comment">// the curve&#39;s to the desired accuracy but, on</span></div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>&#160; <span class="comment">// the interior of the curve&#39;s domain, the </span></div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>&#160; <span class="comment">// curve&#39;s parameterization and the NURBS</span></div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>&#160; <span class="comment">// parameterization may not match to the </span></div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>&#160; <span class="comment">// desired accuracy.</span></div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>&#160; <a class="code" href="../../d3/d6a/class_o_n___nurbs_curve.html">ON_NurbsCurve</a>&amp;,</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>&#160; <span class="keywordtype">double</span> = 0.0,</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>&#160; <span class="keyword">const</span> <a class="code" href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a>* = <span class="keyword">nullptr</span> <span class="comment">// OPTIONAL subdomain of ON_CurveProxy::Domain()</span></div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>&#160;</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>&#160; <span class="keywordtype">int</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#a25f556492601b4e679e8416cee60c529">HasNurbForm</a>( <span class="comment">// returns 0: unable to create NURBS representation</span></div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>&#160; <span class="comment">// with desired accuracy.</span></div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>&#160; <span class="comment">// 1: success - returned NURBS parameterization</span></div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>&#160; <span class="comment">// matches the curve&#39;s to wthe desired accuracy</span></div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>&#160; <span class="comment">// 2: success - returned NURBS point locus matches</span></div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>&#160; <span class="comment">// the curve&#39;s to the desired accuracy but, on</span></div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>&#160; <span class="comment">// the interior of the curve&#39;s domain, the </span></div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>&#160; <span class="comment">// curve&#39;s parameterization and the NURBS</span></div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>&#160; <span class="comment">// parameterization may not match to the </span></div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>&#160; <span class="comment">// desired accuracy.</span></div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>&#160;</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>&#160; <span class="comment">// virtual ON_Curve::GetCurveParameterFromNurbFormParameter override</span></div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ad64be6b1a263a59bfc740199d6de8ace">GetCurveParameterFromNurbFormParameter</a>(</div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>&#160; <span class="keywordtype">double</span>, <span class="comment">// nurbs_t</span></div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>&#160; <span class="keywordtype">double</span>* <span class="comment">// curve_t</span></div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>&#160;</div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span>&#160; <span class="comment">// virtual ON_Curve::GetNurbFormParameterFromCurveParameter override</span></div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d4/d5a/class_o_n___curve.html#ae3ed534f071a515ea5270acf2a04e6e7">GetNurbFormParameterFromCurveParameter</a>(</div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>&#160; <span class="keywordtype">double</span>, <span class="comment">// curve_t</span></div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>&#160; <span class="keywordtype">double</span>* <span class="comment">// nurbs_t</span></div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>&#160; ) <span class="keyword">const override</span>;</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>&#160;};</div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span>&#160;</div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>&#160;</div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>&#160;<span class="preprocessor">#endif</span></div><div class="ttc" id="class_o_n___curve_html_a8108d949eee27fb0ab7b2b4339df5b7f"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a8108d949eee27fb0ab7b2b4339df5b7f">ON_Curve::IsClosed</a></div><div class="ttdeci">virtual bool IsClosed() const</div><div class="ttdoc">Test a curve to see if it is closed. </div></div>
<div class="ttc" id="class_o_n___curve_html_ad162b90ba333e4f3dd5b13823e1b5f27"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ad162b90ba333e4f3dd5b13823e1b5f27">ON_Curve::SpanCount</a></div><div class="ttdeci">virtual int SpanCount() const =0</div><div class="ttdoc">Get number of nonempty smooth (c-infinity) spans in curve </div></div>
<div class="ttc" id="class_o_n___curve_html_ac0a69004a8792a80abb7c9ee19f98f6a"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ac0a69004a8792a80abb7c9ee19f98f6a">ON_Curve::IsContinuous</a></div><div class="ttdeci">virtual bool IsContinuous(ON::continuity c, double t, int *hint=nullptr, double point_tolerance=ON_ZERO_TOLERANCE, double d1_tolerance=ON_ZERO_TOLERANCE, double d2_tolerance=ON_ZERO_TOLERANCE, double cos_angle_tolerance=ON_DEFAULT_ANGLE_TOLERANCE_COSINE, double curvature_tolerance=ON_SQRT_EPSILON) const</div><div class="ttdoc">Test continuity at a curve parameter value. </div></div>
<div class="ttc" id="class_o_n___curve_html_a2deaf514586ac4b16daa45a97d4bd8e1"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a2deaf514586ac4b16daa45a97d4bd8e1">ON_Curve::GetNextDiscontinuity</a></div><div class="ttdeci">virtual bool GetNextDiscontinuity(ON::continuity c, double t0, double t1, double *t, int *hint=nullptr, int *dtype=nullptr, double cos_angle_tolerance=ON_DEFAULT_ANGLE_TOLERANCE_COSINE, double curvature_tolerance=ON_SQRT_EPSILON) const</div><div class="ttdoc">Search for a derivatitive, tangent, or curvature discontinuity. </div></div>
<div class="ttc" id="class_o_n___geometry_html_a0d66ab16e2fddfd1b3e6cf3d6ebbd364"><div class="ttname"><a href="../../df/de0/class_o_n___geometry.html#a0d66ab16e2fddfd1b3e6cf3d6ebbd364">ON_Geometry::Dimension</a></div><div class="ttdeci">virtual int Dimension() const</div><div class="ttdoc">Dimension of the object. </div></div>
<div class="ttc" id="class_o_n___arc_html"><div class="ttname"><a href="../../d3/ddf/class_o_n___arc.html">ON_Arc</a></div><div class="ttdoc">An ON_Arc is a subcurve of 3d circle. </div><div class="ttdef"><b>Definition:</b> opennurbs_arc.h:33</div></div>
<div class="ttc" id="class_o_n___geometry_html_ad615e08fe92af659c8d10cbb4f8fc5e3"><div class="ttname"><a href="../../df/de0/class_o_n___geometry.html#ad615e08fe92af659c8d10cbb4f8fc5e3">ON_Geometry::GetBBox</a></div><div class="ttdeci">virtual bool GetBBox(double *boxmin, double *boxmax, bool bGrowBox=false) const</div><div class="ttdoc">This is the virtual function that actually calculates axis aligned bounding boxes. </div></div>
<div class="ttc" id="class_o_n___curve_html_adb5f04bc1eb13842d60c7c9778740ca8"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#adb5f04bc1eb13842d60c7c9778740ca8">ON_Curve::IsArc</a></div><div class="ttdeci">virtual bool IsArc(const ON_Plane *plane=nullptr, ON_Arc *arc=nullptr, double tolerance=ON_ZERO_TOLERANCE) const</div><div class="ttdoc">Test a curve to see if the locus if its points is an arc or circle. </div></div>
<div class="ttc" id="class_o_n___curve_html_a25f556492601b4e679e8416cee60c529"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a25f556492601b4e679e8416cee60c529">ON_Curve::HasNurbForm</a></div><div class="ttdeci">virtual int HasNurbForm() const</div><div class="ttdoc">Does a NURBS curve representation of this curve. </div></div>
<div class="ttc" id="class_o_n___simple_array_html"><div class="ttname"><a href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray&lt; ON_3dPoint &gt;</a></div></div>
<div class="ttc" id="class_o_n___curve_html_ae619c78b795518c251c5ac32d34d568f"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ae619c78b795518c251c5ac32d34d568f">ON_Curve::GetSpanVector</a></div><div class="ttdeci">virtual bool GetSpanVector(double *knots) const =0</div><div class="ttdoc">Get number of parameters of &quot;knots&quot;. </div></div>
<div class="ttc" id="class_o_n___curve_html_a506b1c3a2ad743b87d5a4085fe3d0b1a"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a506b1c3a2ad743b87d5a4085fe3d0b1a">ON_Curve::Reverse</a></div><div class="ttdeci">virtual bool Reverse()=0</div><div class="ttdoc">Reverse the direction of the curve. </div></div>
<div class="ttc" id="class_o_n___curve_html_ada3a3e9951cc02187a6a9a0e715e70e0"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ada3a3e9951cc02187a6a9a0e715e70e0">ON_Curve::GetParameterTolerance</a></div><div class="ttdeci">virtual bool GetParameterTolerance(double t, double *tminus, double *tplus) const</div><div class="ttdoc">Returns maximum algebraic degree of any span or a good estimate if curve spans are not algebraic...</div></div>
<div class="ttc" id="class_o_n___curve_html"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html">ON_Curve</a></div><div class="ttdoc">ON_Curve is a pure virtual class for curve objects </div><div class="ttdef"><b>Definition:</b> opennurbs_curve.h:93</div></div>
<div class="ttc" id="class_o_n___curve_html_a67dd944c24cda3d319fa5ac73bb95c2e"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a67dd944c24cda3d319fa5ac73bb95c2e">ON_Curve::GetNurbForm</a></div><div class="ttdeci">virtual int GetNurbForm(ON_NurbsCurve &amp;nurbs_curve, double tolerance=0.0, const ON_Interval *subdomain=nullptr) const</div><div class="ttdoc">Get a NURBS curve representation of this curve. </div></div>
<div class="ttc" id="class_o_n___curve_html_a3c1b90bd24333d58d584016e3b40225d"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a3c1b90bd24333d58d584016e3b40225d">ON_Curve::Degree</a></div><div class="ttdeci">virtual int Degree() const =0</div><div class="ttdoc">Returns maximum algebraic degree of any span or a good estimate if curve spans are not algebraic...</div></div>
<div class="ttc" id="class_o_n___curve_html_aa98dcc86caf6da5cdac543e52d695bd4"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#aa98dcc86caf6da5cdac543e52d695bd4">ON_Curve::IsPlanar</a></div><div class="ttdeci">virtual bool IsPlanar(ON_Plane *plane=nullptr, double tolerance=ON_ZERO_TOLERANCE) const</div><div class="ttdoc">Test a curve to see if it is planar. </div></div>
<div class="ttc" id="class_o_n___curve_html_ae3ed534f071a515ea5270acf2a04e6e7"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ae3ed534f071a515ea5270acf2a04e6e7">ON_Curve::GetNurbFormParameterFromCurveParameter</a></div><div class="ttdeci">virtual bool GetNurbFormParameterFromCurveParameter(double curve_t, double *nurbs_t) const</div><div class="ttdoc">Convert a curve parameter to a NURBS curve parameter. </div></div>
<div class="ttc" id="class_o_n___curve_html_ab1b9d5f72971851b4790f4f47d51a846"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ab1b9d5f72971851b4790f4f47d51a846">ON_Curve::DuplicateCurve</a></div><div class="ttdeci">virtual ON_Curve * DuplicateCurve() const</div><div class="ttdoc">Get a duplicate of the curve. </div></div>
<div class="ttc" id="class_o_n___curve_html_a7c480c610e37703041d9eacb502d5ae8"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a7c480c610e37703041d9eacb502d5ae8">ON_Curve::IsInPlane</a></div><div class="ttdeci">virtual bool IsInPlane(const ON_Plane &amp;test_plane, double tolerance=ON_ZERO_TOLERANCE) const =0</div><div class="ttdoc">Test a curve to see if it lies in a specific plane. </div></div>
<div class="ttc" id="class_o_n___curve_html_a9f59373850214fc53a6c793596aece78"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a9f59373850214fc53a6c793596aece78">ON_Curve::Transform</a></div><div class="ttdeci">bool Transform(const ON_Xform &amp;xform) override</div><div class="ttdoc">overrides virtual ON_Geometry::Transform(). ON_Curve::Transform() calls ON_Geometry::Transform(xform)...</div></div>
<div class="ttc" id="class_o_n___curve_html_a467d9a30eb67c198df47da3abc1a87cd"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a467d9a30eb67c198df47da3abc1a87cd">ON_Curve::IsPolyline</a></div><div class="ttdeci">virtual int IsPolyline(ON_SimpleArray&lt; ON_3dPoint &gt; *pline_points=nullptr, ON_SimpleArray&lt; double &gt; *pline_t=nullptr) const</div><div class="ttdoc">Several types of ON_Curve can have the form of a polyline including a degree 1 ON_NurbsCurve, an ON_PolylineCurve, and an ON_PolyCurve all of whose segments are some form of polyline. IsPolyline tests a curve to see if it can be represented as a polyline. </div></div>
<div class="ttc" id="class_o_n___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___curve_proxy_html"><div class="ttname"><a href="../../dc/dda/class_o_n___curve_proxy.html">ON_CurveProxy</a></div><div class="ttdef"><b>Definition:</b> opennurbs_curveproxy.h:37</div></div>
<div class="ttc" id="class_o_n___object_html_a21c7b04a80f1806c3a45f72d7c491a44"><div class="ttname"><a href="../../d9/d7b/class_o_n___object.html#a21c7b04a80f1806c3a45f72d7c491a44">ON_Object::Dump</a></div><div class="ttdeci">virtual void Dump(ON_TextLog &amp;) const</div><div class="ttdoc">Creates a text dump of the object. </div></div>
<div class="ttc" id="class_o_n___curve_html_ad27af42168a1be8f54fff24aed354aab"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ad27af42168a1be8f54fff24aed354aab">ON_Curve::IsPeriodic</a></div><div class="ttdeci">virtual bool IsPeriodic() const</div><div class="ttdoc">Test a curve to see if it is periodic. </div></div>
<div class="ttc" id="class_o_n___curve_html_ac8dc771e7ebcfac85baf26c7e6b21c70"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ac8dc771e7ebcfac85baf26c7e6b21c70">ON_Curve::SetDomain</a></div><div class="ttdeci">bool SetDomain(ON_Interval domain)</div><div class="ttdoc">Set the domain of the curve. </div></div>
<div class="ttc" id="class_o_n___curve_html_ad64be6b1a263a59bfc740199d6de8ace"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ad64be6b1a263a59bfc740199d6de8ace">ON_Curve::GetCurveParameterFromNurbFormParameter</a></div><div class="ttdeci">virtual bool GetCurveParameterFromNurbFormParameter(double nurbs_t, double *curve_t) const</div><div class="ttdoc">Convert a NURBS curve parameter to a curve parameter </div></div>
<div class="ttc" id="class_o_n___curve_html_abd583766fdcd75cc269e87aeab40c4a7"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#abd583766fdcd75cc269e87aeab40c4a7">ON_Curve::Trim</a></div><div class="ttdeci">virtual bool Trim(const ON_Interval &amp;domain)</div><div class="ttdoc">Removes portions of the curve outside the specified interval. </div></div>
<div class="ttc" id="class_o_n___curve_html_acb8caa121873abcf53f050a8953a70bb"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#acb8caa121873abcf53f050a8953a70bb">ON_Curve::Evaluate</a></div><div class="ttdeci">virtual bool Evaluate(double t, int der_count, int v_stride, double *v, int side=0, int *hint=0) const =0</div><div class="ttdoc">This evaluator actually does all the work. The other ON_Curve evaluation tools call this virtual func...</div></div>
<div class="ttc" id="class_o_n___nurbs_curve_html"><div class="ttname"><a href="../../d3/d6a/class_o_n___nurbs_curve.html">ON_NurbsCurve</a></div><div class="ttdef"><b>Definition:</b> opennurbs_nurbscurve.h:26</div></div>
<div class="ttc" id="class_o_n___text_log_html"><div class="ttname"><a href="../../d2/da3/class_o_n___text_log.html">ON_TextLog</a></div><div class="ttdef"><b>Definition:</b> opennurbs_textlog.h:20</div></div>
<div class="ttc" id="class_o_n___binary_archive_html"><div class="ttname"><a href="../../db/d16/class_o_n___binary_archive.html">ON_BinaryArchive</a></div><div class="ttdef"><b>Definition:</b> opennurbs_archive.h:1783</div></div>
<div class="ttc" id="class_o_n___object_html_a09ac9742ead91dd8f9cdd579bcbfed10"><div class="ttname"><a href="../../d9/d7b/class_o_n___object.html#a09ac9742ead91dd8f9cdd579bcbfed10">ON_Object::Read</a></div><div class="ttdeci">virtual bool Read(ON_BinaryArchive &amp;binary_archive)</div><div class="ttdoc">Low level archive writing tool used by ON_BinaryArchive::ReadObject(). </div></div>
<div class="ttc" id="class_o_n___geometry_html_adf87e5ba0d9939dfabbb9f421b9d2b3b"><div class="ttname"><a href="../../df/de0/class_o_n___geometry.html#adf87e5ba0d9939dfabbb9f421b9d2b3b">ON_Geometry::IsValid</a></div><div class="ttdeci">bool IsValid(class ON_TextLog *text_log=nullptr) const override</div><div class="ttdoc">Tests an object to see if its data members are correctly initialized. </div></div>
<div class="ttc" id="class_o_n___object_html_a16eb9ab6bf0d0a614655cf9cd055871a"><div class="ttname"><a href="../../d9/d7b/class_o_n___object.html#a16eb9ab6bf0d0a614655cf9cd055871a">ON_Object::Write</a></div><div class="ttdeci">virtual bool Write(ON_BinaryArchive &amp;binary_archive) const</div><div class="ttdoc">Low level archive writing tool used by ON_BinaryArchive::WriteObject(). </div></div>
<div class="ttc" id="class_o_n___object_html_af51d5fcec9379ad9b7a56ac4dfc9a8b2"><div class="ttname"><a href="../../d9/d7b/class_o_n___object.html#af51d5fcec9379ad9b7a56ac4dfc9a8b2">ON_Object::DataCRC</a></div><div class="ttdeci">virtual ON__UINT32 DataCRC(ON__UINT32 current_remainder) const</div><div class="ttdoc">Returns a CRC calculated from the information that defines the object. This CRC can be used as a quic...</div></div>
<div class="ttc" id="class_o_n___plane_html"><div class="ttname"><a href="../../d4/d48/class_o_n___plane.html">ON_Plane</a></div><div class="ttdef"><b>Definition:</b> opennurbs_plane.h:20</div></div>
<div class="ttc" id="class_o_n___curve_html_a4ad9a73ad53707fbebfc904e772f605b"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a4ad9a73ad53707fbebfc904e772f605b">ON_Curve::DestroyRuntimeCache</a></div><div class="ttdeci">void DestroyRuntimeCache(bool bDelete=true) override</div><div class="ttdoc">virtual ON_Object::DestroyRuntimeCache override </div></div>
<div class="ttc" id="class_o_n___curve_html_af13b163bb51b3972593f6ccf89d18950"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#af13b163bb51b3972593f6ccf89d18950">ON_Curve::SizeOf</a></div><div class="ttdeci">unsigned int SizeOf() const override</div><div class="ttdoc">virtual ON_Object::SizeOf override </div></div>
<div class="ttc" id="class_o_n___curve_html_a325716a9735ab59416bf6800a23ce5fc"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a325716a9735ab59416bf6800a23ce5fc">ON_Curve::IsLinear</a></div><div class="ttdeci">virtual bool IsLinear(double tolerance=ON_ZERO_TOLERANCE) const</div><div class="ttdoc">Test a curve to see if the locus if its points is a line segment. </div></div>
<div class="ttc" id="class_o_n___interval_html"><div class="ttname"><a href="../../dc/dc7/class_o_n___interval.html">ON_Interval</a></div><div class="ttdef"><b>Definition:</b> opennurbs_point.h:46</div></div>
<div class="ttc" id="class_o_n___curve_html_ae3a1e3ea7c924246a43754aa03790432"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#ae3a1e3ea7c924246a43754aa03790432">ON_Curve::Domain</a></div><div class="ttdeci">virtual ON_Interval Domain() const =0</div></div>
<div class="ttc" id="class_o_n___curve_html_a2d6c16e8ddfe8f2cde8c4431db67a337"><div class="ttname"><a href="../../d4/d5a/class_o_n___curve.html#a2d6c16e8ddfe8f2cde8c4431db67a337">ON_Curve::Split</a></div><div class="ttdeci">virtual bool Split(double t, ON_Curve *&amp;left_side, ON_Curve *&amp;right_side) const</div><div class="ttdoc">Splits (divides) the curve at the specified parameter. The parameter must be in the interior of the c...</div></div>
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