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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>
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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>
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<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>
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<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="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>
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<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>
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<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>
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<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>
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<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>
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<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>
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<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>
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<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>
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<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>
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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>
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<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>
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</div><div class="memdoc">
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a8591bf1610a1e096d638272de01cbbeb">&#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>
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</div><div class="memdoc">
</div>
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<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>
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<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">
<p>Returns: Base surface specified <a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#ace5587e63a57f5496ce7fbf6c6d09d75">SetBaseSurface()</a>. </p>
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<a id="a4aa33520c7d0021a7574f7217d36e85a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4aa33520c7d0021a7574f7217d36e85a">&#9670;&nbsp;</a></span>Destroy()</h2>
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<td class="memname">void ON_OffsetSurfaceFunction::Destroy </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
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</div><div class="memdoc">
<p>Description: Resets this class if you want to reuse it. </p>
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</div>
<a id="a5464ad95d5f0c2cb9e6b81fae323fa76"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a5464ad95d5f0c2cb9e6b81fae323fa76">&#9670;&nbsp;</a></span>DistanceAt()</h2>
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<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>
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<tr>
<td></td>
<td>)</td>
<td></td><td> const</td>
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<p>Description: Value of the offset distance at any surface parameter. Parameters: s - [in] t - [in] (s,t) is a base surface evaluation parameter Returns: offset distance at the surface parameter </p>
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<a id="afd3c6a95070d967ff4df0c4803bc7b39"></a>
<h2 class="memtitle"><span class="permalink"><a href="#afd3c6a95070d967ff4df0c4803bc7b39">&#9670;&nbsp;</a></span>EvaluateDistance()</h2>
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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>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>num_der</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">double *&#160;</td>
<td class="paramname"><em>value</em>&#160;</td>
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<td></td>
<td>)</td>
<td></td><td> const</td>
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</div><div class="memdoc">
<p>Description: Value of the offset distance at any surface parameter. Parameters: s - [in] t - [in] (s,t) is a base surface evaluation parameter num_der - [in] number of derivatives value - [out] value and derivatives of distance function value[0] = distance, value[1] = 1rst derivative, value[2] = 2nd derivative, ... Returns: True if successful </p>
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<a id="acd37210391378049709244d99d11b3d2"></a>
<h2 class="memtitle"><span class="permalink"><a href="#acd37210391378049709244d99d11b3d2">&#9670;&nbsp;</a></span>OffsetDistance()</h2>
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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>
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<p>Parameters: i - [in] an index &gt;= 0 and &lt; <a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#a8763ce7cd1a5b8e5ae795f0453b04760">OffsetPointCount()</a> Returns: Offset distance specified using <a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#aad6a124b67385823b702d42616b78eae">SetOffsetPoint()</a>. </p>
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<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>
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<p>Returns: Number of points specified using <a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#aad6a124b67385823b702d42616b78eae">SetOffsetPoint()</a>. </p>
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<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>
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<p>Parameters: i - [in] an index &gt;= 0 and &lt; <a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#a8763ce7cd1a5b8e5ae795f0453b04760">OffsetPointCount()</a> Returns: Surface parameter specified using <a class="el" href="../../d1/d31/class_o_n___offset_surface_function.html#aad6a124b67385823b702d42616b78eae">SetOffsetPoint()</a>. </p>
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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>
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<td class="paramtype">double&#160;</td>
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<td>)</td>
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<p>Description: Value of the offset function at any surface parameter. Parameters: s - [in] t - [in] (s,t) is a base surface evaluation parameter Returns: Point on the offset surface. </p>
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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>
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</div><div class="memdoc">
<p>Description: Sets base surface for the offset function. Parameters: srf - [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. Returns: True if successful. </p>
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<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>
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<td class="paramkey"></td>
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<td class="paramtype">double&#160;</td>
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<p>Description: Set the offset distance for an existing point Parameters: index - [in] index of the point to set distance - [in] new distance </p>
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<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>
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<p>Description: Sets the offset distance at a point. Call this function once for each point wher the user specifies an offset. Parameters: s - [in] t - [in] (s,t) is a base surface evaluation parameter distance - [in] distance is the offset distance. radius - [in] if radius&gt;0, then this value will be the the approximate radius of the offset "bump". </p>
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<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>
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<p>Description: Sets the surface parameters of an existing offset point. Parameters: index - [in] index of the point to set s - [in] t - [in] (s,t) is a base surface evaluation parameter </p>
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<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>
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<p>Description: 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. Parameters: side - [in] 0 = south side 1 = east side 2 = north side 3 = west side bEnable - [in] true to enable tangency, false to disable tangency Returns: True if successful. </p>
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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>
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<p>Parameters: side - [in] 0 = south side 1 = east side 2 = north side 3 = west side Returns: True if side tangency is enabled. </p>
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<h2 class="groupheader">Friends And Related Function Documentation</h2>
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<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>
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<span class="mlabels"><span class="mlabel">friend</span></span> </td>
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