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<a href="#pub-methods">Public Member Functions</a> &#124;
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<a href="../../dc/d0f/class_o_n___mesh_ngon-members.html">List of all members</a> </div>
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<p><code>#include &lt;<a class="el" href="../../db/df7/opennurbs__mesh_8h_source.html">opennurbs_mesh.h</a>&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a020cc6bf78aa865d951419d520471145"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a020cc6bf78aa865d951419d520471145">AppendToString</a> (class <a class="el" href="../../d2/d3b/class_o_n___string.html">ON_String</a> &amp;s) const</td></tr>
<tr class="separator:a020cc6bf78aa865d951419d520471145"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a92e622133ec10b722a4ac10354a9d482"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a92e622133ec10b722a4ac10354a9d482">AppendToString</a> (class <a class="el" href="../../d1/d11/class_o_n__w_string.html">ON_wString</a> &amp;s) const</td></tr>
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<tr class="memitem:abdf3d2073a73b46ec4132af024382e33"><td class="memItemLeft" align="right" valign="top">unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#abdf3d2073a73b46ec4132af024382e33">BoundaryEdgeCount</a> (const <a class="el" href="../../d6/d82/class_o_n___mesh_face_list.html">ON_MeshFaceList</a> &amp;mesh_face_list) const</td></tr>
<tr class="separator:abdf3d2073a73b46ec4132af024382e33"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a51c7647b673551545e2ea8ae55945047"><td class="memItemLeft" align="right" valign="top">unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a51c7647b673551545e2ea8ae55945047">BoundaryEdgeCount</a> (const <a class="el" href="../../df/d11/class_o_n___mesh.html">ON_Mesh</a> *mesh) const</td></tr>
<tr class="separator:a51c7647b673551545e2ea8ae55945047"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a954edaf9e8fe2068ee8ccbdc0fdfa7ec"><td class="memItemLeft" align="right" valign="top">unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a954edaf9e8fe2068ee8ccbdc0fdfa7ec">Capacity</a> () const</td></tr>
<tr class="separator:a954edaf9e8fe2068ee8ccbdc0fdfa7ec"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4de4a0164ccb72757c0ffb4bf97fc85d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../dd/ddf/class_o_n___s_h_a1___hash.html">ON_SHA1_Hash</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a4de4a0164ccb72757c0ffb4bf97fc85d">ContentHash</a> () const</td></tr>
<tr class="separator:a4de4a0164ccb72757c0ffb4bf97fc85d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a39b336cae277ae3f3bfb883419919cdd"><td class="memItemLeft" align="right" valign="top">ON__UINT32&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a39b336cae277ae3f3bfb883419919cdd">CRC32</a> () const</td></tr>
<tr class="separator:a39b336cae277ae3f3bfb883419919cdd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5e2369285b80f0cee315265c3684b377"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a5e2369285b80f0cee315265c3684b377">Dump</a> (class <a class="el" href="../../d2/da3/class_o_n___text_log.html">ON_TextLog</a> &amp;text_log) const</td></tr>
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<tr class="memitem:a6eed871ea493de2c8ce5c15f4baa756e"><td class="memItemLeft" align="right" valign="top">unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a6eed871ea493de2c8ce5c15f4baa756e">GetBoundarySides</a> (const class <a class="el" href="../../d6/d82/class_o_n___mesh_face_list.html">ON_MeshFaceList</a> &amp;mesh_face_list, <a class="el" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray</a>&lt; unsigned int &gt; &amp;ngon_boundary_sides) const</td></tr>
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<tr class="memitem:adaad9cc8d7ec59317d114cc70c6ddfaa"><td class="memItemLeft" align="right" valign="top">unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#adaad9cc8d7ec59317d114cc70c6ddfaa">GetOuterBoundaryPoints</a> (const class <a class="el" href="../../d0/d8a/class_o_n__3d_point_list_ref.html">ON_3dPointListRef</a> &amp;mesh_vertex_list, bool bAppendStartPoint, <a class="el" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray</a>&lt; <a class="el" href="../../d2/d35/class_o_n__3d_point.html">ON_3dPoint</a> &gt; &amp;ngon_boundary_points) const</td></tr>
<tr class="separator:adaad9cc8d7ec59317d114cc70c6ddfaa"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2e9ba32e30d4c112dbc50ee17cd51d17"><td class="memItemLeft" align="right" valign="top">unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a2e9ba32e30d4c112dbc50ee17cd51d17">GetOuterBoundaryPoints</a> (const class <a class="el" href="../../d0/d8a/class_o_n__3d_point_list_ref.html">ON_3dPointListRef</a> &amp;mesh_vertex_list, bool bAppendStartPoint, <a class="el" href="../../d2/d35/class_o_n__3d_point.html">ON_3dPoint</a> *ngon_boundary_points) const</td></tr>
<tr class="separator:a2e9ba32e30d4c112dbc50ee17cd51d17"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad081408a2dc6df86095488eb46f7ca40"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#ad081408a2dc6df86095488eb46f7ca40">Orientation</a> (const <a class="el" href="../../d6/d82/class_o_n___mesh_face_list.html">ON_MeshFaceList</a> &amp;mesh_face_list, bool bPermitHoles) const</td></tr>
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<tr class="memitem:ab08fb8f3992e5d0befa84a1b7e192fd0"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#ab08fb8f3992e5d0befa84a1b7e192fd0">Orientation</a> (const <a class="el" href="../../df/d11/class_o_n___mesh.html">ON_Mesh</a> *mesh, bool bPermitHoles) const</td></tr>
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<tr class="memitem:a6841bf12bab1e1846b0e5473269c3649"><td class="memItemLeft" align="right" valign="top">unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a6841bf12bab1e1846b0e5473269c3649">OuterBoundaryEdgeCount</a> () const</td></tr>
<tr class="separator:a6841bf12bab1e1846b0e5473269c3649"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a94957bdc9789dd8f577e48b28c40909b"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a94957bdc9789dd8f577e48b28c40909b">ReverseOuterBoundary</a> ()</td></tr>
<tr class="separator:a94957bdc9789dd8f577e48b28c40909b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a844465d5254f81ae6005b4a30335f0b2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d2/d3b/class_o_n___string.html">ON_String</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a844465d5254f81ae6005b4a30335f0b2">ToString</a> () const</td></tr>
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<tr class="memitem:a5f77d02a7fc8b39ea6492782938b69ea"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d1/d11/class_o_n__w_string.html">ON_wString</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a5f77d02a7fc8b39ea6492782938b69ea">ToWideString</a> () const</td></tr>
<tr class="separator:a5f77d02a7fc8b39ea6492782938b69ea"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:a9f28257f2bd43c955bc82314b827fcb7"><td class="memItemLeft" align="right" valign="top">static int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a9f28257f2bd43c955bc82314b827fcb7">Compare</a> (const <a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html">ON_MeshNgon</a> *A, const <a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html">ON_MeshNgon</a> *B)</td></tr>
<tr class="separator:a9f28257f2bd43c955bc82314b827fcb7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac4352b8bb0569558de08dfa74f8b1395"><td class="memItemLeft" align="right" valign="top">static unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#ac4352b8bb0569558de08dfa74f8b1395">FindNgonOuterBoundary</a> (const class <a class="el" href="../../d0/d8a/class_o_n__3d_point_list_ref.html">ON_3dPointListRef</a> &amp;mesh_vertex_list, const class <a class="el" href="../../d6/d82/class_o_n___mesh_face_list.html">ON_MeshFaceList</a> &amp;mesh_face_list, const unsigned int *const *vertex_face_map, size_t ngon_fi_count, const unsigned int *ngon_fi, <a class="el" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray</a>&lt; unsigned int &gt; &amp;ngon_vi)</td></tr>
<tr class="separator:ac4352b8bb0569558de08dfa74f8b1395"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a62d6fc97ef9375f87118ea25d9da3e1e"><td class="memItemLeft" align="right" valign="top">static unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a62d6fc97ef9375f87118ea25d9da3e1e">FindPlanarNgons</a> (const class <a class="el" href="../../d0/d8a/class_o_n__3d_point_list_ref.html">ON_3dPointListRef</a> &amp;vertex_list, const class <a class="el" href="../../d6/d82/class_o_n___mesh_face_list.html">ON_MeshFaceList</a> &amp;face_list, const unsigned int *const *vertex_face_map, double planar_tolerance, unsigned int minimum_ngon_vertex_count, unsigned int minimum_ngon_face_count, bool bAllowHoles, class <a class="el" href="../../d0/dec/class_o_n___mesh_ngon_allocator.html">ON_MeshNgonAllocator</a> &amp;NgonAllocator, <a class="el" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray</a>&lt; unsigned int &gt; &amp;NgonMap, <a class="el" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray</a>&lt; <a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html">ON_MeshNgon</a> *&gt; &amp;Ngons)</td></tr>
<tr class="separator:a62d6fc97ef9375f87118ea25d9da3e1e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6198586119e95e3d1a1829c613080b12"><td class="memItemLeft" align="right" valign="top">static unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a6198586119e95e3d1a1829c613080b12">IsValid</a> (const <a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html">ON_MeshNgon</a> *ngon, unsigned int ngon_index, <a class="el" href="../../d2/da3/class_o_n___text_log.html">ON_TextLog</a> *text_log, unsigned int mesh_vertex_count, unsigned int mesh_face_count, const <a class="el" href="../../de/d91/class_o_n___mesh_face.html">ON_MeshFace</a> *mesh_F)</td></tr>
<tr class="separator:a6198586119e95e3d1a1829c613080b12"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2e1f92bff7349a4fa964a12c2a0366be"><td class="memItemLeft" align="right" valign="top">static unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a2e1f92bff7349a4fa964a12c2a0366be">IsValid</a> (const <a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html">ON_MeshNgon</a> *ngon, unsigned int ngon_index, <a class="el" href="../../d2/da3/class_o_n___text_log.html">ON_TextLog</a> *text_log, unsigned int mesh_vertex_count, unsigned int mesh_face_count, const <a class="el" href="../../de/d91/class_o_n___mesh_face.html">ON_MeshFace</a> *mesh_F, <a class="el" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray</a>&lt; unsigned int &gt; &amp;workspace_buffer)</td></tr>
<tr class="separator:a2e1f92bff7349a4fa964a12c2a0366be"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a394718017f61f497b598ef7b65cab5c9"><td class="memItemLeft" align="right" valign="top">static class <a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html">ON_MeshNgon</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a394718017f61f497b598ef7b65cab5c9">NgonFromMeshFace</a> (class <a class="el" href="../../df/d35/class_o_n___mesh_ngon_buffer.html">ON_MeshNgonBuffer</a> &amp;ngon_buffer, unsigned int mesh_face_index, const unsigned int *fvi)</td></tr>
<tr class="separator:a394718017f61f497b598ef7b65cab5c9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a31f82078d58ddc0f0da74f35a35ea946"><td class="memItemLeft" align="right" valign="top">static class <a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html">ON_MeshNgon</a> **&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a31f82078d58ddc0f0da74f35a35ea946">NgonListFromMeshFace</a> (class <a class="el" href="../../df/d35/class_o_n___mesh_ngon_buffer.html">ON_MeshNgonBuffer</a> &amp;ngon_buffer, unsigned int mesh_face_index, const unsigned int *fvi)</td></tr>
<tr class="separator:a31f82078d58ddc0f0da74f35a35ea946"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8228c54598e58fdad9968fcd11b49ed7"><td class="memItemLeft" align="right" valign="top">static unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a8228c54598e58fdad9968fcd11b49ed7">NgonListFromMeshFaceOrNgonComponent</a> (class <a class="el" href="../../df/d35/class_o_n___mesh_ngon_buffer.html">ON_MeshNgonBuffer</a> &amp;ngon_buffer, ON_COMPONENT_INDEX ci, const class <a class="el" href="../../df/d11/class_o_n___mesh.html">ON_Mesh</a> *mesh, const class <a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html">ON_MeshNgon</a> *const *&amp;ngon_list)</td></tr>
<tr class="separator:a8228c54598e58fdad9968fcd11b49ed7"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:a120e153345a764577ceaf05e90a546cb"><td class="memItemLeft" align="right" valign="top">unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a120e153345a764577ceaf05e90a546cb">m_Fcount</a></td></tr>
<tr class="memdesc:a120e153345a764577ceaf05e90a546cb"><td class="mdescLeft">&#160;</td><td class="mdescRight">number of faces <a href="#a120e153345a764577ceaf05e90a546cb">More...</a><br /></td></tr>
<tr class="separator:a120e153345a764577ceaf05e90a546cb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aafb93ba1bbc13cc9aa7be5011cdf4013"><td class="memItemLeft" align="right" valign="top">unsigned int *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#aafb93ba1bbc13cc9aa7be5011cdf4013">m_fi</a></td></tr>
<tr class="separator:aafb93ba1bbc13cc9aa7be5011cdf4013"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a175d7cf5009f5c6e0450528aa1c9eee6"><td class="memItemLeft" align="right" valign="top">unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a175d7cf5009f5c6e0450528aa1c9eee6">m_Vcount</a></td></tr>
<tr class="memdesc:a175d7cf5009f5c6e0450528aa1c9eee6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Number of N-gon corners (N &gt;= 3) <a href="#a175d7cf5009f5c6e0450528aa1c9eee6">More...</a><br /></td></tr>
<tr class="separator:a175d7cf5009f5c6e0450528aa1c9eee6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a889e4013c47fdbdfaad06ff5b13ad20c"><td class="memItemLeft" align="right" valign="top">unsigned int *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html#a889e4013c47fdbdfaad06ff5b13ad20c">m_vi</a></td></tr>
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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a020cc6bf78aa865d951419d520471145">&#9670;&nbsp;</a></span>AppendToString() <span class="overload">[1/2]</span></h2>
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<td class="memname">void ON_MeshNgon::AppendToString </td>
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<td class="paramtype">class <a class="el" href="../../d2/d3b/class_o_n___string.html">ON_String</a> &amp;&#160;</td>
<td class="paramname"><em>s</em></td><td>)</td>
<td> const</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a92e622133ec10b722a4ac10354a9d482">&#9670;&nbsp;</a></span>AppendToString() <span class="overload">[2/2]</span></h2>
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<td class="memname">void ON_MeshNgon::AppendToString </td>
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<td class="paramtype">class <a class="el" href="../../d1/d11/class_o_n__w_string.html">ON_wString</a> &amp;&#160;</td>
<td class="paramname"><em>s</em></td><td>)</td>
<td> const</td>
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<h2 class="memtitle"><span class="permalink"><a href="#abdf3d2073a73b46ec4132af024382e33">&#9670;&nbsp;</a></span>BoundaryEdgeCount() <span class="overload">[1/2]</span></h2>
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<td class="memname">unsigned int ON_MeshNgon::BoundaryEdgeCount </td>
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<td class="paramtype">const <a class="el" href="../../d6/d82/class_o_n___mesh_face_list.html">ON_MeshFaceList</a> &amp;&#160;</td>
<td class="paramname"><em>mesh_face_list</em></td><td>)</td>
<td> const</td>
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<p>Parameters: mesh_face_list - [in] faces referenced by this n-gon. Returns: Total number of boundary edges, including interior edges. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a51c7647b673551545e2ea8ae55945047">&#9670;&nbsp;</a></span>BoundaryEdgeCount() <span class="overload">[2/2]</span></h2>
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<td class="memname">unsigned int ON_MeshNgon::BoundaryEdgeCount </td>
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<td class="paramtype">const <a class="el" href="../../df/d11/class_o_n___mesh.html">ON_Mesh</a> *&#160;</td>
<td class="paramname"><em>mesh</em></td><td>)</td>
<td> const</td>
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<p>Parameters: mesh - [in] mesh referenced by this n-gon. Returns: Total number of boundary edges, including interior edges. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a954edaf9e8fe2068ee8ccbdc0fdfa7ec">&#9670;&nbsp;</a></span>Capacity()</h2>
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<td class="memname">unsigned int ON_MeshNgon::Capacity </td>
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<td class="paramname"></td><td>)</td>
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<p>Returns: 0: This n-gon is not managed by an <a class="el" href="../../d0/dec/class_o_n___mesh_ngon_allocator.html">ON_MeshNgonAllocator</a>. &gt;=0: The maximum capcity (maximum m_Vcount+m_Fcount) for this N-gon </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a9f28257f2bd43c955bc82314b827fcb7">&#9670;&nbsp;</a></span>Compare()</h2>
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<td class="memname">static int ON_MeshNgon::Compare </td>
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<td class="paramtype">const <a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html">ON_MeshNgon</a> *&#160;</td>
<td class="paramname"><em>A</em>, </td>
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<td class="paramtype">const <a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html">ON_MeshNgon</a> *&#160;</td>
<td class="paramname"><em>B</em>&#160;</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a4de4a0164ccb72757c0ffb4bf97fc85d">&#9670;&nbsp;</a></span>ContentHash()</h2>
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<td class="memname"><a class="el" href="../../dd/ddf/class_o_n___s_h_a1___hash.html">ON_SHA1_Hash</a> ON_MeshNgon::ContentHash </td>
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<p>Returns: A SHA-1 has of the vertex and face indices. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a39b336cae277ae3f3bfb883419919cdd">&#9670;&nbsp;</a></span>CRC32()</h2>
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<td class="memname">ON__UINT32 ON_MeshNgon::CRC32 </td>
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<p>Returns: 32-bit cyclic redundancy check that can be used as a hash code. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a5e2369285b80f0cee315265c3684b377">&#9670;&nbsp;</a></span>Dump()</h2>
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<td class="memname">void ON_MeshNgon::Dump </td>
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<td class="paramtype">class <a class="el" href="../../d2/da3/class_o_n___text_log.html">ON_TextLog</a> &amp;&#160;</td>
<td class="paramname"><em>text_log</em></td><td>)</td>
<td> const</td>
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<h2 class="memtitle"><span class="permalink"><a href="#ac4352b8bb0569558de08dfa74f8b1395">&#9670;&nbsp;</a></span>FindNgonOuterBoundary()</h2>
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<td class="memname">static unsigned int ON_MeshNgon::FindNgonOuterBoundary </td>
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<td class="paramtype">const class <a class="el" href="../../d0/d8a/class_o_n__3d_point_list_ref.html">ON_3dPointListRef</a> &amp;&#160;</td>
<td class="paramname"><em>mesh_vertex_list</em>, </td>
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<td class="paramtype">const class <a class="el" href="../../d6/d82/class_o_n___mesh_face_list.html">ON_MeshFaceList</a> &amp;&#160;</td>
<td class="paramname"><em>mesh_face_list</em>, </td>
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<td class="paramtype">const unsigned int *const *&#160;</td>
<td class="paramname"><em>vertex_face_map</em>, </td>
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<td class="paramtype">size_t&#160;</td>
<td class="paramname"><em>ngon_fi_count</em>, </td>
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<td class="paramtype">const unsigned int *&#160;</td>
<td class="paramname"><em>ngon_fi</em>, </td>
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<td class="paramtype"><a class="el" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray</a>&lt; unsigned int &gt; &amp;&#160;</td>
<td class="paramname"><em>ngon_vi</em>&#160;</td>
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<p>Description: Get a list of vertices that form the boundary of a set of faces. Parameters: mesh_vertex_list - [in] mesh_face_list - [in] vertex_face_map - [in] null or a vertex map made from the information in mesh_vertex_list and mesh_face_list. ngon_fi_count - [in] length of ngon_fi[] array ngon_fi - [in] An array of length ngon_fi_count that contains the indices of the faces that form the ngon. ngon_vi - [out] An array of vertex indices that make the ngon boundary. Returns: Number of vertices in the ngon outer boundary or 0 if the input is not valid. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a62d6fc97ef9375f87118ea25d9da3e1e">&#9670;&nbsp;</a></span>FindPlanarNgons()</h2>
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<td class="memname">static unsigned int ON_MeshNgon::FindPlanarNgons </td>
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<td class="paramtype">const class <a class="el" href="../../d0/d8a/class_o_n__3d_point_list_ref.html">ON_3dPointListRef</a> &amp;&#160;</td>
<td class="paramname"><em>vertex_list</em>, </td>
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<td class="paramtype">const class <a class="el" href="../../d6/d82/class_o_n___mesh_face_list.html">ON_MeshFaceList</a> &amp;&#160;</td>
<td class="paramname"><em>face_list</em>, </td>
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<td class="paramtype">const unsigned int *const *&#160;</td>
<td class="paramname"><em>vertex_face_map</em>, </td>
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<td class="paramtype">double&#160;</td>
<td class="paramname"><em>planar_tolerance</em>, </td>
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<td class="paramtype">unsigned int&#160;</td>
<td class="paramname"><em>minimum_ngon_vertex_count</em>, </td>
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<td class="paramtype">unsigned int&#160;</td>
<td class="paramname"><em>minimum_ngon_face_count</em>, </td>
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<td class="paramtype">bool&#160;</td>
<td class="paramname"><em>bAllowHoles</em>, </td>
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<td class="paramtype">class <a class="el" href="../../d0/dec/class_o_n___mesh_ngon_allocator.html">ON_MeshNgonAllocator</a> &amp;&#160;</td>
<td class="paramname"><em>NgonAllocator</em>, </td>
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<td class="paramtype"><a class="el" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray</a>&lt; unsigned int &gt; &amp;&#160;</td>
<td class="paramname"><em>NgonMap</em>, </td>
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<td class="paramtype"><a class="el" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray</a>&lt; <a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html">ON_MeshNgon</a> *&gt; &amp;&#160;</td>
<td class="paramname"><em>Ngons</em>&#160;</td>
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<p>Tools for finding a making n-gons </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a6eed871ea493de2c8ce5c15f4baa756e">&#9670;&nbsp;</a></span>GetBoundarySides()</h2>
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<td class="memname">unsigned int ON_MeshNgon::GetBoundarySides </td>
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<td class="paramtype">const class <a class="el" href="../../d6/d82/class_o_n___mesh_face_list.html">ON_MeshFaceList</a> &amp;&#160;</td>
<td class="paramname"><em>mesh_face_list</em>, </td>
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<td class="paramtype"><a class="el" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray</a>&lt; unsigned int &gt; &amp;&#160;</td>
<td class="paramname"><em>ngon_boundary_sides</em>&#160;</td>
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<p>Description: Use the ngon m_fi[] array to get a list of ngon boundary sides. Parameters: mesh_face_list - [in] ngon_boundary_sides - [out] ngon_boundary_sides[i]/8 = ON_MeshNon.m_fi[] array index ngon_boundary_sides[i]%4 = side index side index 0 identifies the side that runs from the first face vertex to the second face vertex. ngon_boundary_sides[i]&amp;4 != 0 means the face side is reversed when used as an ngon boundary segment. Returns: Number of elements added to ngon_boundary_sides[] or 0 if invalid input is encountered. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#adaad9cc8d7ec59317d114cc70c6ddfaa">&#9670;&nbsp;</a></span>GetOuterBoundaryPoints() <span class="overload">[1/2]</span></h2>
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<td class="memname">unsigned int ON_MeshNgon::GetOuterBoundaryPoints </td>
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<td class="paramtype">const class <a class="el" href="../../d0/d8a/class_o_n__3d_point_list_ref.html">ON_3dPointListRef</a> &amp;&#160;</td>
<td class="paramname"><em>mesh_vertex_list</em>, </td>
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<td class="paramtype"><a class="el" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray</a>&lt; <a class="el" href="../../d2/d35/class_o_n__3d_point.html">ON_3dPoint</a> &gt; &amp;&#160;</td>
<td class="paramname"><em>ngon_boundary_points</em>&#160;</td>
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<p>Description: Use the ngon m_vi[] array to get a list of 3d points from mesh_vertex_list. Parameters: mesh_vertex_list - [in] bAppendStartPoint - [in] If true, the initial point in the boundary will be added as the first point of ngon_boundary_points[] and then added again as the last point of ngon_boundary_points[]. This is useful when you need a closed polyline. ngon_boundary_points - [out] An array of ngon-&gt;m_Vcount + (bAppendStartPoint ? 1 : 0) points. Returns: Number of points added to ngon_boundary_points[] or 0 if invalid input is encountered. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a2e9ba32e30d4c112dbc50ee17cd51d17">&#9670;&nbsp;</a></span>GetOuterBoundaryPoints() <span class="overload">[2/2]</span></h2>
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<td class="memname">unsigned int ON_MeshNgon::GetOuterBoundaryPoints </td>
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<td class="paramtype">const class <a class="el" href="../../d0/d8a/class_o_n__3d_point_list_ref.html">ON_3dPointListRef</a> &amp;&#160;</td>
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<td class="paramtype"><a class="el" href="../../d2/d35/class_o_n__3d_point.html">ON_3dPoint</a> *&#160;</td>
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<p>Description: Use the ngon m_vi[] array to get a list of 3d points from mesh_vertex_list. Parameters: mesh_vertex_list - [in] bAppendStartPoint - [in] If true, the initial point in the boundary will be added as the first point of ngon_boundary_points[] and then added again as the last point of ngon_boundary_points[]. This is useful when you need a closed polyline. ngon_boundary_points - [out] An array of ngon-&gt;m_Vcount + (bAppendStartPoint ? 1 : 0) points is returned in ngon_boundary_points[]. The caller must insure that ngon_boundary_points[] has room for this many elements. Returns: Number of points added to ngon_boundary_points[] or 0 if invalid input is encountered. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a6198586119e95e3d1a1829c613080b12">&#9670;&nbsp;</a></span>IsValid() <span class="overload">[1/2]</span></h2>
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<td class="memname">static unsigned int ON_MeshNgon::IsValid </td>
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<td class="paramtype"><a class="el" href="../../d2/da3/class_o_n___text_log.html">ON_TextLog</a> *&#160;</td>
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<td class="paramtype">const <a class="el" href="../../de/d91/class_o_n___mesh_face.html">ON_MeshFace</a> *&#160;</td>
<td class="paramname"><em>mesh_F</em>&#160;</td>
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<p>Tools for validation output Description: Test ngon to see if the vertex and face references are valid and pass partial boundary validity checks, Parameters: ngon - [in] ngon to test ngon_index - [in] This index is used in messages sent to text_log text_log - [in] nullptr or a place to send information about problems. mesh_vertex_count - [in] Number of vertices in the mesh mesh_face_count - [in] Number of face in the mesh mesh_F - [in] nullptr of mesh faces - required for boundary checks workspace_buffer - [in] If you are passing in mesh_F and you are testing testing multple ngons, then consider providing a workspace_buffer that will be automatically reused for successive ngons. Returns: 0: ngon is not valid &gt;0: number of boundary edges. If this number is &gt; ngon-&gt;m_V_count, then the ngon has inner boundaries or duplicate vertices. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a2e1f92bff7349a4fa964a12c2a0366be">&#9670;&nbsp;</a></span>IsValid() <span class="overload">[2/2]</span></h2>
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<td class="memname">static unsigned int ON_MeshNgon::IsValid </td>
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<td class="paramtype">const <a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html">ON_MeshNgon</a> *&#160;</td>
<td class="paramname"><em>ngon</em>, </td>
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<td class="paramtype">unsigned int&#160;</td>
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<td class="paramtype">const <a class="el" href="../../de/d91/class_o_n___mesh_face.html">ON_MeshFace</a> *&#160;</td>
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<td class="paramtype"><a class="el" href="../../dc/dfe/class_o_n___simple_array.html">ON_SimpleArray</a>&lt; unsigned int &gt; &amp;&#160;</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a394718017f61f497b598ef7b65cab5c9">&#9670;&nbsp;</a></span>NgonFromMeshFace()</h2>
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<td class="memname">static class <a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html">ON_MeshNgon</a>* ON_MeshNgon::NgonFromMeshFace </td>
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<p>Description: Create an ngon pointer that contains a triangle (3-gon) or quad (4-gon) from a mesh face. This is handy when your code needs to handle both ngons and faces because it lets you convert a face to its ngon format and the rest of the code can work exclusively with ngons. Parameters: buffer - [in] an array with a capacity for at least 9 ON__UINT_PTR elements. The returned ngon information will be stored in this memory. mesh_face_index - [in] fvi - [in] mesh face vertex indices. If "f" is an <a class="el" href="../../de/d91/class_o_n___mesh_face.html">ON_MeshFace</a>, then pass (const unsigned int*)f.vi. Returns: If the input is valid, the returned ngon pointer is is the face's triangle or quad. All returned information is in the buffer[]. null - invalid input. See Also: <a class="el" href="../../df/d11/class_o_n___mesh.html#aa7dc938246cff27850bd279cb8b9e307">ON_Mesh::NgonFromComponentIndex()</a> </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a31f82078d58ddc0f0da74f35a35ea946">&#9670;&nbsp;</a></span>NgonListFromMeshFace()</h2>
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<td class="memname">static class <a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html">ON_MeshNgon</a>** ON_MeshNgon::NgonListFromMeshFace </td>
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<td class="paramtype">class <a class="el" href="../../df/d35/class_o_n___mesh_ngon_buffer.html">ON_MeshNgonBuffer</a> &amp;&#160;</td>
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<p>Description: Create an array of a single ngon pointer that contains a triangle (3-gon) or quad (4-gon) from a mesh face. This is handy when your code needs to handle both ngons and faces because it lets you convert a face to its ngon format and the rest of the code can work exclusively with ngons. Parameters: ngon_buffer - [in] memory used to create ngon classan array with a capacity for at least 10 ON__UINT_PTR elements. mesh_face_index - [in] fvi - [in] mesh face vertex indices. If "f" is an <a class="el" href="../../de/d91/class_o_n___mesh_face.html">ON_MeshFace</a>, then pass (const unsigned int*)f.vi. Returns: If the input is valid, the returned pointer is an array of a single ngon that is the face's triangle or quad. All returned information is in the buffer[]. null - invalid input. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a8228c54598e58fdad9968fcd11b49ed7">&#9670;&nbsp;</a></span>NgonListFromMeshFaceOrNgonComponent()</h2>
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<td class="memname">static unsigned int ON_MeshNgon::NgonListFromMeshFaceOrNgonComponent </td>
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<p>Description: If a component index identifies a face or ngon, Get an array Create an array of a single ngon pointer that contains a triangle (3-gon) or quad (4-gon) from a mesh face. This is handy when your code needs to handle both ngons and faces because it lets you convert a face to its ngon format and the rest of the code can work exclusively with ngons. Parameters: ngon_buffer - [in] memory used to create <a class="el" href="../../d5/df5/class_o_n___mesh_ngon.html">ON_MeshNgon</a> class ci - [in] mesh - [in] ngon_list - [out] An array of ngon pointers. Some pointers may be null. Returns: Number of ngon pointers in ngon_list. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ad081408a2dc6df86095488eb46f7ca40">&#9670;&nbsp;</a></span>Orientation() <span class="overload">[1/2]</span></h2>
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<td class="memname">int ON_MeshNgon::Orientation </td>
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<p>Pamameters: mesh_face_list - [in] <a class="el" href="../../df/d11/class_o_n___mesh.html">ON_Mesh</a> face list. bPermitHoles - [in] true if the ngon is permitted to have interior holes false otherwise. Description: Determine if the ngon's boundary orientation matches that of the set of faces it is made from. Returns: 1: The ngon does not have holes, the ngon's faces are compatibly oriented, and the ngon's outer boundary orientation matches the faces' orientation. -1: The ngon does not have holes, the ngon's faces are compatibly oriented, and the ngon's outer boundary orientation is opposite the faces' orientation. 0: Otherwise. The ngon may be invalid, have holes, the ngon's faces may not be compatibly oriented, the ngons edges may not have a consistent orientation with respect to the faces, or some other issue. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ab08fb8f3992e5d0befa84a1b7e192fd0">&#9670;&nbsp;</a></span>Orientation() <span class="overload">[2/2]</span></h2>
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<td class="memname">int ON_MeshNgon::Orientation </td>
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<p>Pamameters: mesh_face_list - [in] <a class="el" href="../../df/d11/class_o_n___mesh.html">ON_Mesh</a> face list. bPermitHoles - [in] true if the ngon is permitted to have interior holes false otherwise. Description: Determine if the ngon's boundary orientation matches that of the set of faces it is made from. Returns: 1: The ngon does not have holes, the ngon's faces are compatibly oriented, and the ngon's outer boundary orientation matches the faces' orientation. -1: The ngon does not have holes, the ngon's faces are compatibly oriented, and the ngon's outer boundary orientation is opposite the faces' orientation. 0: Otherwise. The ngon may be invalid, have holes, the ngon's faces may not be compatibly oriented, the ngons edges may not have a consistent orientation with respect to the faces, or some other issue. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a6841bf12bab1e1846b0e5473269c3649">&#9670;&nbsp;</a></span>OuterBoundaryEdgeCount()</h2>
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<td class="memname">unsigned int ON_MeshNgon::OuterBoundaryEdgeCount </td>
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<p>Returns: Total number of outer boundary edges. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a94957bdc9789dd8f577e48b28c40909b">&#9670;&nbsp;</a></span>ReverseOuterBoundary()</h2>
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<p>Description: Reverse the order of the m_vi[] array. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a844465d5254f81ae6005b4a30335f0b2">&#9670;&nbsp;</a></span>ToString()</h2>
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<td class="memname"><a class="el" href="../../d2/d3b/class_o_n___string.html">ON_String</a> ON_MeshNgon::ToString </td>
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<p>Tools for text output </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a5f77d02a7fc8b39ea6492782938b69ea">&#9670;&nbsp;</a></span>ToWideString()</h2>
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<td class="memname"><a class="el" href="../../d1/d11/class_o_n__w_string.html">ON_wString</a> ON_MeshNgon::ToWideString </td>
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<h2 class="groupheader">Member Data Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a120e153345a764577ceaf05e90a546cb">&#9670;&nbsp;</a></span>m_Fcount</h2>
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<td class="memname">unsigned int ON_MeshNgon::m_Fcount</td>
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<p>number of faces </p>
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<h2 class="memtitle"><span class="permalink"><a href="#aafb93ba1bbc13cc9aa7be5011cdf4013">&#9670;&nbsp;</a></span>m_fi</h2>
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<p>N-gon face indices An array of m_Fcount indices into the mesh's m_F[] face array. Unset elements have the value ON_UNSET_UINT_INDEX. If the ngon in managed by an ON_NgonAllocator, then the memory for m_fi[] is also managed by that ON_NgonAllocator. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a175d7cf5009f5c6e0450528aa1c9eee6">&#9670;&nbsp;</a></span>m_Vcount</h2>
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<p>Number of N-gon corners (N &gt;= 3) </p>
<p>number of vertices and sides (the "n" in n-gon) </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a889e4013c47fdbdfaad06ff5b13ad20c">&#9670;&nbsp;</a></span>m_vi</h2>
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<p>N-gon vertex indices An array of m_Vcount indices into the mesh's m_V[] vertex array. Unset elements have the value ON_UNSET_UINT_INDEX. If the ngon in managed by an ON_NgonAllocator, then the memory for m_vi[] is also managed by that ON_NgonAllocator. </p>
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