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6/d4/dea/class_o_n___surface_proxy.html
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<title>openNURBS SDK Help: ON_SurfaceProxy Class Reference</title>
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<div id="projectname">openNURBS SDK Help
&#160;<span id="projectnumber">6.0</span>
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@@ -370,8 +368,8 @@ Additional Inherited Members</h2></td></tr>
<a class="el" href="../../da/da0/class_o_n___surface.html#a7418fb8120619cb5f17bd4283ad37087afeed892fcad04099c847059c6c7d9a3f">N_iso</a> = 6,
<a class="el" href="../../da/da0/class_o_n___surface.html#a7418fb8120619cb5f17bd4283ad37087ad32a0c9eac90b8d18c9e214619f5439b">iso_count</a> = 7
<br />
}</td></tr>
<tr class="memdesc:a7418fb8120619cb5f17bd4283ad37087"><td class="mdescLeft">&#160;</td><td class="mdescRight">pure virtual class for surface objects <a href="../../da/da0/class_o_n___surface.html#a7418fb8120619cb5f17bd4283ad37087">More...</a><br /></td></tr>
}<tr class="memdesc:a7418fb8120619cb5f17bd4283ad37087"><td class="mdescLeft">&#160;</td><td class="mdescRight">pure virtual class for surface objects <a href="../../da/da0/class_o_n___surface.html#a7418fb8120619cb5f17bd4283ad37087">More...</a><br /></td></tr>
</td></tr>
<tr class="separator:a7418fb8120619cb5f17bd4283ad37087 inherit pub_types_class_o_n___surface"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="inherit_header pub_types_class_o_n___object"><td colspan="2" onclick="javascript:toggleInherit('pub_types_class_o_n___object')"><img src="../../closed.png" alt="-"/>&#160;Public Types inherited from <a class="el" href="../../d9/d7b/class_o_n___object.html">ON_Object</a></td></tr>
<tr class="memitem:a7f520e987ffa14e71b06493340f9956c inherit pub_types_class_o_n___object"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d9/d7b/class_o_n___object.html#a7f520e987ffa14e71b06493340f9956c">UserDataConflictResolution</a> : unsigned char { <br />
@@ -392,11 +390,7 @@ Additional Inherited Members</h2></td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><dl class="section rcs"><dt>NoKeywords</dt><dd></dd></dl>
<p><br />
<br />
/ / Copyright (c) 1993-2012 Robert McNeel &amp; Associates. All rights reserved. / OpenNURBS, Rhinoceros, and Rhino3D are registered trademarks of Robert / McNeel &amp; 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. / <br />
<br />
/ For complete openNURBS copyright information see <a href="http://www.opennurbs.org">http://www.opennurbs.org</a>. / //////////////////////////////////////////////////////////////</p>
<p>/ / Copyright (c) 1993-2012 Robert McNeel &amp; Associates. All rights reserved. / OpenNURBS, Rhinoceros, and Rhino3D are registered trademarks of Robert / McNeel &amp; 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>
<p>Definition of surface proxy object </p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="a831247dd1ce01ef6645dfe165c53e83f"></a>
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<p>Description: Get a duplicate of the surface. Returns: A duplicate of the surface. <br />
Remarks: The caller must delete the returned surface. For non-ON_SurfaceProxy objects, this simply duplicates the surface using ON_Object::Duplicate. For <a class="el" href="../../d4/dea/class_o_n___surface_proxy.html">ON_SurfaceProxy</a> objects, this duplicates the actual proxy surface geometry and, if necessary, transposes the result to that the returned surfaces's parameterization and locus match the proxy surface's. </p>
<p>Description: Get a duplicate of the surface. Returns: A duplicate of the surface. Remarks: The caller must delete the returned surface. For non-ON_SurfaceProxy objects, this simply duplicates the surface using ON_Object::Duplicate. For <a class="el" href="../../d4/dea/class_o_n___surface_proxy.html">ON_SurfaceProxy</a> objects, this duplicates the actual proxy surface geometry and, if necessary, transposes the result to that the returned surfaces's parameterization and locus match the proxy surface's. </p>
<p>Reimplemented from <a class="el" href="../../da/da0/class_o_n___surface.html#aedab1803231d9ff212afa3f360826dfc">ON_Surface</a>.</p>
@@ -875,8 +868,7 @@ Remarks: The caller must delete the returned surface. For non-ON_SurfaceProxy ob
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<p>Description: Search for a derivatitive, tangent, or curvature discontinuity. Parameters: dir - [in] If 0, then "u" parameter is checked. If 1, then the "v" parameter is checked. c - [in] type of continity to test for. t0 - [in] Search begins at t0. If there is a discontinuity at t0, it will be ignored. This makes it possible to repeatedly call GetNextDiscontinuity and step through the discontinuities. t1 - [in] (t0 != t1) If there is a discontinuity at t1 is will be ingored unless c is a locus discontinuity type and t1 is at the start or end of the curve. t - [out] if a discontinuity is found, then *t reports the parameter at the discontinuity. hint - [in/out] if GetNextDiscontinuity will be called repeatedly, passing a "hint" with initial value *hint=0 will increase the speed of the search. <br />
dtype - [out] if not nullptr, *dtype reports the kind of discontinuity found at *t. A value of 1 means the first derivative or unit tangent was discontinuous. A value of 2 means the second derivative or curvature was discontinuous. A value of 0 means teh curve is not closed, a locus discontinuity test was applied, and t1 is at the start of end of the curve. cos_angle_tolerance - [in] default = cos(1 degree) Used only when c is ON::continuity::G1_continuous or ON::continuity::G2_continuous. If the cosine of the angle between two tangent vectors is &lt;= cos_angle_tolerance, then a G1 discontinuity is reported. curvature_tolerance - [in] (default = ON_SQRT_EPSILON) Used only when c is ON::continuity::G2_continuous. If K0 and K1 are curvatures evaluated from above and below and |K0 - K1| &gt; curvature_tolerance, then a curvature discontinuity is reported. Returns: Parametric continuity tests c = (C0_continuous, ..., G2_continuous):</p>
<p>Description: Search for a derivatitive, tangent, or curvature discontinuity. Parameters: dir - [in] If 0, then "u" parameter is checked. If 1, then the "v" parameter is checked. c - [in] type of continity to test for. t0 - [in] Search begins at t0. If there is a discontinuity at t0, it will be ignored. This makes it possible to repeatedly call GetNextDiscontinuity and step through the discontinuities. t1 - [in] (t0 != t1) If there is a discontinuity at t1 is will be ingored unless c is a locus discontinuity type and t1 is at the start or end of the curve. t - [out] if a discontinuity is found, then *t reports the parameter at the discontinuity. hint - [in/out] if GetNextDiscontinuity will be called repeatedly, passing a "hint" with initial value *hint=0 will increase the speed of the search. dtype - [out] if not nullptr, *dtype reports the kind of discontinuity found at *t. A value of 1 means the first derivative or unit tangent was discontinuous. A value of 2 means the second derivative or curvature was discontinuous. A value of 0 means teh curve is not closed, a locus discontinuity test was applied, and t1 is at the start of end of the curve. cos_angle_tolerance - [in] default = cos(1 degree) Used only when c is ON::continuity::G1_continuous or ON::continuity::G2_continuous. If the cosine of the angle between two tangent vectors is &lt;= cos_angle_tolerance, then a G1 discontinuity is reported. curvature_tolerance - [in] (default = ON_SQRT_EPSILON) Used only when c is ON::continuity::G2_continuous. If K0 and K1 are curvatures evaluated from above and below and |K0 - K1| &gt; curvature_tolerance, then a curvature discontinuity is reported. Returns: Parametric continuity tests c = (C0_continuous, ..., G2_continuous):</p>
<p>true if a parametric discontinuity was found strictly between t0 and t1. Note well that all curves are parametrically continuous at the ends of their domains.</p>
<p>Locus continuity tests c = (C0_locus_continuous, ...,G2_locus_continuous):</p>
<p>true if a locus discontinuity was found strictly between t0 and t1 or at t1 is the at the end of a curve. Note well that all open curves (<a class="el" href="../../d4/dea/class_o_n___surface_proxy.html#ad7b0113a87f848fe4b8cbd87743050e2">IsClosed()</a>=false) are locus discontinuous at the ends of their domains. All closed curves (<a class="el" href="../../d4/dea/class_o_n___surface_proxy.html#ad7b0113a87f848fe4b8cbd87743050e2">IsClosed()</a>=true) are at least C0_locus_continuous at the ends of their domains. </p>
@@ -1179,8 +1171,7 @@ Remarks: The caller must delete the returned surface. For non-ON_SurfaceProxy ob
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<p>Description: Is there a NURBS surface representation of this surface. Parameters: Returns: 0 unable to create NURBS representation with desired accuracy. 1 success - NURBS parameterization matches the surface's 2 success - NURBS point locus matches the surface's and the domain of the NURBS surface is correct. <br />
However, This surface's parameterization and the NURBS surface parameterization may not match. This situation happens when getting NURBS representations of surfaces that have a transendental parameterization like spheres, cylinders, and cones. Remarks: This is a low-level virtual function. See Also: <a class="el" href="../../da/da0/class_o_n___surface.html#a4c4be57a220937dbf697548f3505a693">ON_Surface::GetNurbForm</a> <a class="el" href="../../da/da0/class_o_n___surface.html#a9c25021d3304fea40d3cfe9b4fb1a58e">ON_Surface::NurbsSurface</a> </p>
<p>Description: Is there a NURBS surface representation of this surface. Parameters: Returns: 0 unable to create NURBS representation with desired accuracy. 1 success - NURBS parameterization matches the surface's 2 success - NURBS point locus matches the surface's and the domain of the NURBS surface is correct. However, This surface's parameterization and the NURBS surface parameterization may not match. This situation happens when getting NURBS representations of surfaces that have a transendental parameterization like spheres, cylinders, and cones. Remarks: This is a low-level virtual function. See Also: <a class="el" href="../../da/da0/class_o_n___surface.html#a4c4be57a220937dbf697548f3505a693">ON_Surface::GetNurbForm</a> <a class="el" href="../../da/da0/class_o_n___surface.html#a9c25021d3304fea40d3cfe9b4fb1a58e">ON_Surface::NurbsSurface</a> </p>
<p>Reimplemented from <a class="el" href="../../da/da0/class_o_n___surface.html#a032695e1c765ace3b5b9888d746b49f7">ON_Surface</a>.</p>
@@ -1808,8 +1799,8 @@ Remarks: The caller must delete the returned surface. For non-ON_SurfaceProxy ob
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<p>Description: Low level archive writing tool used by <a class="el" href="../../db/d16/class_o_n___binary_archive.html#a33187abe5d04ac52c41d7a798e664f3b" title="writes object definition ">ON_BinaryArchive::WriteObject()</a>. Parameters: binary_archive - archive to write to Returns: Returns true if the write is successful. Remarks: Use <a class="el" href="../../db/d16/class_o_n___binary_archive.html#a33187abe5d04ac52c41d7a798e664f3b" title="writes object definition ">ON_BinaryArchive::WriteObject()</a> to write objects. This <a class="el" href="../../d4/dea/class_o_n___surface_proxy.html#ae5b08dc1a0e9a7dd58f9ed59f3f6c286">Write()</a> function should just write the specific definition of this object. It should not write and any chunk typecode or length information. <br />
The default implementation of this virtual function returns false and does nothing. </p>
<p>Description: Low level archive writing tool used by <a class="el" href="../../db/d16/class_o_n___binary_archive.html#a33187abe5d04ac52c41d7a798e664f3b" title="writes object definition ">ON_BinaryArchive::WriteObject()</a>. Parameters: binary_archive - archive to write to Returns: Returns true if the write is successful. Remarks: Use <a class="el" href="../../db/d16/class_o_n___binary_archive.html#a33187abe5d04ac52c41d7a798e664f3b" title="writes object definition ">ON_BinaryArchive::WriteObject()</a> to write objects. This <a class="el" href="../../d4/dea/class_o_n___surface_proxy.html#ae5b08dc1a0e9a7dd58f9ed59f3f6c286">Write()</a> function should just write the specific definition of this object. It should not write and any chunk typecode or length information.</p>
<p>The default implementation of this virtual function returns false and does nothing. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">binary_archive</td><td>open binary file </td></tr>
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