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<p><code>#include &lt;<a class="el" href="../../db/d0e/opennurbs__offsetsurface_8h_source.html">opennurbs_offsetsurface.h</a>&gt;</code></p>
<table class="memberdecls">
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Public Member Functions</h2></td></tr>
<tr class="memitem:a940dc561e9d83cbaacd8570fbeec0b9d"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#a940dc561e9d83cbaacd8570fbeec0b9d">ON_OffsetSurfaceFunction</a> ()</td></tr>
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<tr class="memitem:a8591bf1610a1e096d638272de01cbbeb"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#a8591bf1610a1e096d638272de01cbbeb">~ON_OffsetSurfaceFunction</a> ()</td></tr>
<tr class="separator:a8591bf1610a1e096d638272de01cbbeb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae4acea055bae9cf01e63f5628664ce98"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="../../da/da0/class_o_n___surface.html">ON_Surface</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#ae4acea055bae9cf01e63f5628664ce98">BaseSurface</a> () const</td></tr>
<tr class="separator:ae4acea055bae9cf01e63f5628664ce98"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4aa33520c7d0021a7574f7217d36e85a"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#a4aa33520c7d0021a7574f7217d36e85a">Destroy</a> ()</td></tr>
<tr class="memdesc:a4aa33520c7d0021a7574f7217d36e85a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Resets this class if you want to reuse it. <a href="#a4aa33520c7d0021a7574f7217d36e85a">More...</a><br /></td></tr>
<tr class="separator:a4aa33520c7d0021a7574f7217d36e85a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5464ad95d5f0c2cb9e6b81fae323fa76"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#a5464ad95d5f0c2cb9e6b81fae323fa76">DistanceAt</a> (double s, double t) const</td></tr>
<tr class="memdesc:a5464ad95d5f0c2cb9e6b81fae323fa76"><td class="mdescLeft">&#160;</td><td class="mdescRight">Value of the offset distance at any surface parameter. <a href="#a5464ad95d5f0c2cb9e6b81fae323fa76">More...</a><br /></td></tr>
<tr class="separator:a5464ad95d5f0c2cb9e6b81fae323fa76"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:afd3c6a95070d967ff4df0c4803bc7b39"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#afd3c6a95070d967ff4df0c4803bc7b39">EvaluateDistance</a> (double s, double t, int num_der, double *value) const</td></tr>
<tr class="memdesc:afd3c6a95070d967ff4df0c4803bc7b39"><td class="mdescLeft">&#160;</td><td class="mdescRight">Value of the offset distance at any surface parameter. <a href="#afd3c6a95070d967ff4df0c4803bc7b39">More...</a><br /></td></tr>
<tr class="separator:afd3c6a95070d967ff4df0c4803bc7b39"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acd37210391378049709244d99d11b3d2"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#acd37210391378049709244d99d11b3d2">OffsetDistance</a> (int i) const</td></tr>
<tr class="separator:acd37210391378049709244d99d11b3d2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8763ce7cd1a5b8e5ae795f0453b04760"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#a8763ce7cd1a5b8e5ae795f0453b04760">OffsetPointCount</a> () const</td></tr>
<tr class="separator:a8763ce7cd1a5b8e5ae795f0453b04760"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ada01eeb3756fa8f8b124380b6c35e395"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../dd/dd9/class_o_n__2d_point.html">ON_2dPoint</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#ada01eeb3756fa8f8b124380b6c35e395">OffsetSurfaceParameter</a> (int i) const</td></tr>
<tr class="separator:ada01eeb3756fa8f8b124380b6c35e395"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a22496719ac9dae77523991c99a59c934"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d2/d35/class_o_n__3d_point.html">ON_3dPoint</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#a22496719ac9dae77523991c99a59c934">PointAt</a> (double s, double t) const</td></tr>
<tr class="memdesc:a22496719ac9dae77523991c99a59c934"><td class="mdescLeft">&#160;</td><td class="mdescRight">Value of the offset function at any surface parameter. <a href="#a22496719ac9dae77523991c99a59c934">More...</a><br /></td></tr>
<tr class="separator:a22496719ac9dae77523991c99a59c934"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ace5587e63a57f5496ce7fbf6c6d09d75"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#ace5587e63a57f5496ce7fbf6c6d09d75">SetBaseSurface</a> (const <a class="el" href="../../da/da0/class_o_n___surface.html">ON_Surface</a> *srf)</td></tr>
<tr class="memdesc:ace5587e63a57f5496ce7fbf6c6d09d75"><td class="mdescLeft">&#160;</td><td class="mdescRight">Sets base surface for the offset function. <a href="#ace5587e63a57f5496ce7fbf6c6d09d75">More...</a><br /></td></tr>
<tr class="separator:ace5587e63a57f5496ce7fbf6c6d09d75"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a81898e149321ef792934b209cf9af8de"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#a81898e149321ef792934b209cf9af8de">SetDistance</a> (int index, double distance)</td></tr>
<tr class="memdesc:a81898e149321ef792934b209cf9af8de"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set the offset distance for an existing point <a href="#a81898e149321ef792934b209cf9af8de">More...</a><br /></td></tr>
<tr class="separator:a81898e149321ef792934b209cf9af8de"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aad6a124b67385823b702d42616b78eae"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#aad6a124b67385823b702d42616b78eae">SetOffsetPoint</a> (double s, double t, double distance, double radius=0.0)</td></tr>
<tr class="memdesc:aad6a124b67385823b702d42616b78eae"><td class="mdescLeft">&#160;</td><td class="mdescRight">Sets the offset distance at a point. Call this function once for each point wher the user specifies an offset. <a href="#aad6a124b67385823b702d42616b78eae">More...</a><br /></td></tr>
<tr class="separator:aad6a124b67385823b702d42616b78eae"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a15eef93675b140baf99db0794b782113"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#a15eef93675b140baf99db0794b782113">SetPoint</a> (int index, double s, double t)</td></tr>
<tr class="memdesc:a15eef93675b140baf99db0794b782113"><td class="mdescLeft">&#160;</td><td class="mdescRight">Sets the surface parameters of an existing offset point. <a href="#a15eef93675b140baf99db0794b782113">More...</a><br /></td></tr>
<tr class="separator:a15eef93675b140baf99db0794b782113"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a219bf5b9a05814bf2f6dd4f42780a001"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#a219bf5b9a05814bf2f6dd4f42780a001">SetSideTangency</a> (int side, bool bEnable)</td></tr>
<tr class="memdesc:a219bf5b9a05814bf2f6dd4f42780a001"><td class="mdescLeft">&#160;</td><td class="mdescRight">Use set SetSideTangency if you want the offset surface and base surface to have the same unit normals along a side of the surfaces's parameter spaces. <a href="#a219bf5b9a05814bf2f6dd4f42780a001">More...</a><br /></td></tr>
<tr class="separator:a219bf5b9a05814bf2f6dd4f42780a001"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abd5132800afc22eb96245c9dcfe25e24"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#abd5132800afc22eb96245c9dcfe25e24">SideTangency</a> (int side) const</td></tr>
<tr class="separator:abd5132800afc22eb96245c9dcfe25e24"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="friends"></a>
Friends</h2></td></tr>
<tr class="memitem:ab872dfc59e65714daa9b6219932ae5db"><td class="memItemLeft" align="right" valign="top">class&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#ab872dfc59e65714daa9b6219932ae5db">ON_OffsetSurface</a></td></tr>
<tr class="separator:ab872dfc59e65714daa9b6219932ae5db"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="a940dc561e9d83cbaacd8570fbeec0b9d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a940dc561e9d83cbaacd8570fbeec0b9d">&#9670;&nbsp;</a></span>ON_OffsetSurfaceFunction()</h2>
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<td class="memname">ON_OffsetSurfaceFunction::ON_OffsetSurfaceFunction </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
</div>
</div>
<a id="a8591bf1610a1e096d638272de01cbbeb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8591bf1610a1e096d638272de01cbbeb">&#9670;&nbsp;</a></span>~ON_OffsetSurfaceFunction()</h2>
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<table class="memname">
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<td class="memname">ON_OffsetSurfaceFunction::~ON_OffsetSurfaceFunction </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
</div>
</div>
<h2 class="groupheader">Member Function Documentation</h2>
<a id="ae4acea055bae9cf01e63f5628664ce98"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae4acea055bae9cf01e63f5628664ce98">&#9670;&nbsp;</a></span>BaseSurface()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">const <a class="el" href="../../da/da0/class_o_n___surface.html">ON_Surface</a>* ON_OffsetSurfaceFunction::BaseSurface </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
</div><div class="memdoc">
<dl class="section return"><dt>Returns</dt><dd>Base surface specified <a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#ace5587e63a57f5496ce7fbf6c6d09d75" title="Sets base surface for the offset function. ">SetBaseSurface()</a>. </dd></dl>
</div>
</div>
<a id="a4aa33520c7d0021a7574f7217d36e85a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4aa33520c7d0021a7574f7217d36e85a">&#9670;&nbsp;</a></span>Destroy()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void ON_OffsetSurfaceFunction::Destroy </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Resets this class if you want to reuse it. </p>
</div>
</div>
<a id="a5464ad95d5f0c2cb9e6b81fae323fa76"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a5464ad95d5f0c2cb9e6b81fae323fa76">&#9670;&nbsp;</a></span>DistanceAt()</h2>
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<tr>
<td class="memname">double ON_OffsetSurfaceFunction::DistanceAt </td>
<td>(</td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>s</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>t</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const</td>
</tr>
</table>
</div><div class="memdoc">
<p>Value of the offset distance at any surface parameter. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>[in]</td></tr>
<tr><td class="paramname">t</td><td>[in] (s,t) is a base surface evaluation parameter</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>offset distance at the surface parameter </dd></dl>
</div>
</div>
<a id="afd3c6a95070d967ff4df0c4803bc7b39"></a>
<h2 class="memtitle"><span class="permalink"><a href="#afd3c6a95070d967ff4df0c4803bc7b39">&#9670;&nbsp;</a></span>EvaluateDistance()</h2>
<div class="memitem">
<div class="memproto">
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<td class="memname">bool ON_OffsetSurfaceFunction::EvaluateDistance </td>
<td>(</td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>s</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>t</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>num_der</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double *&#160;</td>
<td class="paramname"><em>value</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const</td>
</tr>
</table>
</div><div class="memdoc">
<p>Value of the offset distance at any surface parameter. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>[in]</td></tr>
<tr><td class="paramname">t</td><td>[in] (s,t) is a base surface evaluation parameter</td></tr>
<tr><td class="paramname">num_der</td><td>[in] number of derivatives</td></tr>
<tr><td class="paramname">value</td><td>[out] value and derivatives of distance function value[0] = distance, value[1] = 1rst derivative, value[2] = 2nd derivative, ...</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>True if successful </dd></dl>
</div>
</div>
<a id="acd37210391378049709244d99d11b3d2"></a>
<h2 class="memtitle"><span class="permalink"><a href="#acd37210391378049709244d99d11b3d2">&#9670;&nbsp;</a></span>OffsetDistance()</h2>
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<table class="memname">
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<td class="memname">double ON_OffsetSurfaceFunction::OffsetDistance </td>
<td>(</td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>i</em></td><td>)</td>
<td> const</td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>[in] an index &gt;= 0 and &lt; <a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#a8763ce7cd1a5b8e5ae795f0453b04760">OffsetPointCount()</a></td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Offset distance specified using <a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#aad6a124b67385823b702d42616b78eae" title="Sets the offset distance at a point. Call this function once for each point wher the user specifies a...">SetOffsetPoint()</a>. </dd></dl>
</div>
</div>
<a id="a8763ce7cd1a5b8e5ae795f0453b04760"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8763ce7cd1a5b8e5ae795f0453b04760">&#9670;&nbsp;</a></span>OffsetPointCount()</h2>
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<td class="memname">int ON_OffsetSurfaceFunction::OffsetPointCount </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
</div><div class="memdoc">
<dl class="section return"><dt>Returns</dt><dd>Number of points specified using <a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#aad6a124b67385823b702d42616b78eae" title="Sets the offset distance at a point. Call this function once for each point wher the user specifies a...">SetOffsetPoint()</a>. </dd></dl>
</div>
</div>
<a id="ada01eeb3756fa8f8b124380b6c35e395"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ada01eeb3756fa8f8b124380b6c35e395">&#9670;&nbsp;</a></span>OffsetSurfaceParameter()</h2>
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<td class="memname"><a class="el" href="../../dd/dd9/class_o_n__2d_point.html">ON_2dPoint</a> ON_OffsetSurfaceFunction::OffsetSurfaceParameter </td>
<td>(</td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>i</em></td><td>)</td>
<td> const</td>
</tr>
</table>
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<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>[in] an index &gt;= 0 and &lt; <a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#a8763ce7cd1a5b8e5ae795f0453b04760">OffsetPointCount()</a></td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Surface parameter specified using <a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#aad6a124b67385823b702d42616b78eae" title="Sets the offset distance at a point. Call this function once for each point wher the user specifies a...">SetOffsetPoint()</a>. </dd></dl>
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<a id="a22496719ac9dae77523991c99a59c934"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a22496719ac9dae77523991c99a59c934">&#9670;&nbsp;</a></span>PointAt()</h2>
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<td class="memname"><a class="el" href="../../d2/d35/class_o_n__3d_point.html">ON_3dPoint</a> ON_OffsetSurfaceFunction::PointAt </td>
<td>(</td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>s</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>t</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const</td>
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</div><div class="memdoc">
<p>Value of the offset function at any surface parameter. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>[in]</td></tr>
<tr><td class="paramname">t</td><td>[in] (s,t) is a base surface evaluation parameter</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Point on the offset surface. </dd></dl>
</div>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ace5587e63a57f5496ce7fbf6c6d09d75">&#9670;&nbsp;</a></span>SetBaseSurface()</h2>
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<td class="memname">bool ON_OffsetSurfaceFunction::SetBaseSurface </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="../../da/da0/class_o_n___surface.html">ON_Surface</a> *&#160;</td>
<td class="paramname"><em>srf</em></td><td>)</td>
<td></td>
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<p>Sets base surface for the offset function. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">srf</td><td>[in] pointer to the base surface. This surface must remain valid while the <a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html">ON_OffsetSurfaceFunction</a> class is used.</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>True if successful. </dd></dl>
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<a id="a81898e149321ef792934b209cf9af8de"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a81898e149321ef792934b209cf9af8de">&#9670;&nbsp;</a></span>SetDistance()</h2>
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<td class="memname">bool ON_OffsetSurfaceFunction::SetDistance </td>
<td>(</td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>index</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>distance</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
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<p>Set the offset distance for an existing point </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">index</td><td>[in] index of the point to set</td></tr>
<tr><td class="paramname">distance</td><td>[in] new distance</td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a id="aad6a124b67385823b702d42616b78eae"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aad6a124b67385823b702d42616b78eae">&#9670;&nbsp;</a></span>SetOffsetPoint()</h2>
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<td class="memname">bool ON_OffsetSurfaceFunction::SetOffsetPoint </td>
<td>(</td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>s</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>t</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>distance</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>radius</em> = <code>0.0</code>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Sets the offset distance at a point. Call this function once for each point wher the user specifies an offset. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>[in]</td></tr>
<tr><td class="paramname">t</td><td>[in] (s,t) is a base surface evaluation parameter</td></tr>
<tr><td class="paramname">distance</td><td>[in] distance is the offset distance.</td></tr>
<tr><td class="paramname">radius</td><td>[in] if radius&gt;0, then this value will be the the approximate radius of the offset "bump".</td></tr>
</table>
</dd>
</dl>
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<a id="a15eef93675b140baf99db0794b782113"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a15eef93675b140baf99db0794b782113">&#9670;&nbsp;</a></span>SetPoint()</h2>
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<td class="memname">bool ON_OffsetSurfaceFunction::SetPoint </td>
<td>(</td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>index</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>s</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>t</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Sets the surface parameters of an existing offset point. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">index</td><td>[in] index of the point to set</td></tr>
<tr><td class="paramname">s</td><td>[in]</td></tr>
<tr><td class="paramname">t</td><td>[in] (s,t) is a base surface evaluation parameter</td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a id="a219bf5b9a05814bf2f6dd4f42780a001"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a219bf5b9a05814bf2f6dd4f42780a001">&#9670;&nbsp;</a></span>SetSideTangency()</h2>
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<td class="memname">bool ON_OffsetSurfaceFunction::SetSideTangency </td>
<td>(</td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>side</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool&#160;</td>
<td class="paramname"><em>bEnable</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Use set SetSideTangency if you want the offset surface and base surface to have the same unit normals along a side of the surfaces's parameter spaces. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">side</td><td>[in] 0 = south side 1 = east side 2 = north side 3 = west side</td></tr>
<tr><td class="paramname">bEnable</td><td>[in] true to enable tangency, false to disable tangency</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>True if successful. </dd></dl>
</div>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#abd5132800afc22eb96245c9dcfe25e24">&#9670;&nbsp;</a></span>SideTangency()</h2>
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<td class="memname">bool ON_OffsetSurfaceFunction::SideTangency </td>
<td>(</td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>side</em></td><td>)</td>
<td> const</td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">side</td><td>[in] 0 = south side 1 = east side 2 = north side 3 = west side</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>True if side tangency is enabled. </dd></dl>
</div>
</div>
<h2 class="groupheader">Friends And Related Function Documentation</h2>
<a id="ab872dfc59e65714daa9b6219932ae5db"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab872dfc59e65714daa9b6219932ae5db">&#9670;&nbsp;</a></span>ON_OffsetSurface</h2>
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<td class="memname">friend class <a class="el" href="../../d5/dd7/class_o_n___offset_surface.html">ON_OffsetSurface</a></td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">friend</span></span> </td>
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