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 <span id="projectnumber">6.0</span>
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<a href="../../d9/d37/class_o_n___mapping_channel-members.html">List of all members</a> </div>
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<div class="title">ON_MappingChannel Class Reference</div> </div>
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<p><code>#include <<a class="el" href="../../d6/d24/opennurbs__mapchan_8h_source.html">opennurbs_mapchan.h</a>></code></p>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:a96cb1c2acad54e7622fafa5adbd96e09"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d60/class_o_n___mapping_channel.html#a96cb1c2acad54e7622fafa5adbd96e09">ON_MappingChannel</a> ()</td></tr>
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<tr class="separator:a96cb1c2acad54e7622fafa5adbd96e09"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:acdcfeea1cfb9b3e56049623e1869d3c2"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d60/class_o_n___mapping_channel.html#acdcfeea1cfb9b3e56049623e1869d3c2">Compare</a> (const <a class="el" href="../../dd/d60/class_o_n___mapping_channel.html">ON_MappingChannel</a> &other) const</td></tr>
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<tr class="memitem:af3b4254ee4c4699b6e7c8faf4aaa1122"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d60/class_o_n___mapping_channel.html#af3b4254ee4c4699b6e7c8faf4aaa1122">Default</a> ()</td></tr>
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<tr class="separator:af3b4254ee4c4699b6e7c8faf4aaa1122"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a49d080e4a1a3dd84e236fd5530c7dca0"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d60/class_o_n___mapping_channel.html#a49d080e4a1a3dd84e236fd5530c7dca0">Read</a> (<a class="el" href="../../db/d16/class_o_n___binary_archive.html">ON_BinaryArchive</a> &archive)</td></tr>
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<tr class="memitem:aa988337402220699238416fb43d64b68"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d60/class_o_n___mapping_channel.html#aa988337402220699238416fb43d64b68">Write</a> (<a class="el" href="../../db/d16/class_o_n___binary_archive.html">ON_BinaryArchive</a> &archive) const</td></tr>
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Public Attributes</h2></td></tr>
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<tr class="memitem:a495b5782bf55b08fb499b9d333f7acca"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d60/class_o_n___mapping_channel.html#a495b5782bf55b08fb499b9d333f7acca">m_mapping_channel_id</a></td></tr>
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<tr class="separator:a495b5782bf55b08fb499b9d333f7acca"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a2592d9c399b4262f93b48c2b1acc0248"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d8/db4/struct_o_n___u_u_i_d__struct.html">ON_UUID</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d60/class_o_n___mapping_channel.html#a2592d9c399b4262f93b48c2b1acc0248">m_mapping_id</a></td></tr>
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<tr class="memdesc:a2592d9c399b4262f93b48c2b1acc0248"><td class="mdescLeft"> </td><td class="mdescRight">Identifies an <a class="el" href="../../d7/de3/class_o_n___texture_mapping.html">ON_TextureMapping</a>. <a href="#a2592d9c399b4262f93b48c2b1acc0248">More...</a><br /></td></tr>
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<tr class="memitem:a5c8254e3d8983d00951f2db9c134f583"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d60/class_o_n___mapping_channel.html#a5c8254e3d8983d00951f2db9c134f583">m_mapping_index</a></td></tr>
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<tr class="memitem:a40da8496d4214a000314ce2ee6f05006"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d3/d13/class_o_n___xform.html">ON_Xform</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d60/class_o_n___mapping_channel.html#a40da8496d4214a000314ce2ee6f05006">m_object_xform</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><dl class="section rcs"><dt>NoKeywords</dt><dd></dd></dl>
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<p>/ / Copyright (c) 1993-2012 Robert McNeel & Associates. All rights reserved. / OpenNURBS, Rhinoceros, and Rhino3D are registered trademarks of Robert / McNeel & Associates. / / THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY. / ALL IMPLIED WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE AND OF / MERCHANTABILITY ARE HEREBY DISCLAIMED. / / For complete openNURBS copyright information see <a href="http://www.opennurbs.org">http://www.opennurbs.org</a>. / //////////////////////////////////////////////////////////////</p>
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<p>Class <a class="el" href="../../dd/d60/class_o_n___mapping_channel.html">ON_MappingChannel</a></p>
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<p>Description: <a class="el" href="../../d0/d52/class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a> uses <a class="el" href="../../dd/d60/class_o_n___mapping_channel.html">ON_MappingChannel</a> to record which texture mapping function to use when applying a texture with a matching mapping channel id. When an object is rendered, if the material has textures and <a class="el" href="../../d0/d16/class_o_n___texture.html#ac6f229d4c13d0dbc81462e3e22c3581c">ON_Texture::m_mapping_channel_id</a> = <a class="el" href="../../dd/d60/class_o_n___mapping_channel.html#a495b5782bf55b08fb499b9d333f7acca">ON_MappingChannel::m_mapping_channel_id</a>, then the mapping with id m_mapping_id is used to map the texture. Otherwise, the mesh m_T[] texture coordinates are used to apply the texture. </p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a96cb1c2acad54e7622fafa5adbd96e09">◆ </a></span>ON_MappingChannel()</h2>
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<td class="memname">ON_MappingChannel::ON_MappingChannel </td>
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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#acdcfeea1cfb9b3e56049623e1869d3c2">◆ </a></span>Compare()</h2>
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<td class="memname">int ON_MappingChannel::Compare </td>
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<td class="paramtype">const <a class="el" href="../../dd/d60/class_o_n___mapping_channel.html">ON_MappingChannel</a> & </td>
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<td class="paramname"><em>other</em></td><td>)</td>
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<h2 class="memtitle"><span class="permalink"><a href="#af3b4254ee4c4699b6e7c8faf4aaa1122">◆ </a></span>Default()</h2>
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<td class="memname">void ON_MappingChannel::Default </td>
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<h2 class="memtitle"><span class="permalink"><a href="#a49d080e4a1a3dd84e236fd5530c7dca0">◆ </a></span>Read()</h2>
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<td class="memname">bool ON_MappingChannel::Read </td>
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<td class="paramtype"><a class="el" href="../../db/d16/class_o_n___binary_archive.html">ON_BinaryArchive</a> & </td>
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<h2 class="memtitle"><span class="permalink"><a href="#aa988337402220699238416fb43d64b68">◆ </a></span>Write()</h2>
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<td class="memname">bool ON_MappingChannel::Write </td>
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<td class="paramtype"><a class="el" href="../../db/d16/class_o_n___binary_archive.html">ON_BinaryArchive</a> & </td>
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<h2 class="groupheader">Member Data Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a495b5782bf55b08fb499b9d333f7acca">◆ </a></span>m_mapping_channel_id</h2>
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<p><a class="el" href="../../d0/d16/class_o_n___texture.html">ON_Texture</a>'s with a matching m_mapping_channel_id value use the mapping identified by m_mapping_id. This id must be > 0 and <= 2147483647 (0x7FFFFFFF) </p>
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<td class="memname"><a class="el" href="../../d8/db4/struct_o_n___u_u_i_d__struct.html">ON_UUID</a> ON_MappingChannel::m_mapping_id</td>
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<p>Identifies an <a class="el" href="../../d7/de3/class_o_n___texture_mapping.html">ON_TextureMapping</a>. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a5c8254e3d8983d00951f2db9c134f583">◆ </a></span>m_mapping_index</h2>
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<td class="memname">int ON_MappingChannel::m_mapping_index</td>
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<p>RUNTIME textrure mapping table index. If -1, it needs to be set. This value is not saved int files. </p>
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<td class="memname"><a class="el" href="../../d3/d13/class_o_n___xform.html">ON_Xform</a> ON_MappingChannel::m_object_xform</td>
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<p>The default value of m_object_xform is the identity. When an object that uses this mapping is transformed by "T", m_object_xform is updated using the formula m_object_xform = T*m_object_xform. If texture coordinates are lost and need to be recalculated and m_object_xform is not the identity, then m_object_xform should be passed to <a class="el" href="../../d7/de3/class_o_n___texture_mapping.html#a585d55bec1eb924681c70f722f8785fe">ON_TextureMapping::Evaluate()</a> as the mesh_xform parameter. When validating mapping coordinates, m_object_xform itself be passed to HasMatchingTextureCoordinates() as the object_transform parameter. </p>
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