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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<th width="100%" align="center">V_Sim API - Reference Manual</th>
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<a href="#v-sim-isoline.synopsis" class="shortcut">Top</a>
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<a href="#v-sim-isoline.description" class="shortcut">Description</a>
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<div class="refentry" title="isoline">
<a name="v-sim-isoline"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="v-sim-isoline.top_of_page"></a>isoline</span></h2>
<p>isoline — handle the drawing and the computation of
isolines.</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv" title="Synopsis">
<a name="v-sim-isoline.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis"> <a class="link" href="v-sim-isoline.html#VisuLine" title="VisuLine">VisuLine</a>;
<span class="returnvalue">void</span> <a class="link" href="v-sim-isoline.html#visu-line-draw" title="visu_line_draw ()">visu_line_draw</a> (<em class="parameter"><code><a class="link" href="v-sim-isoline.html#VisuLine" title="VisuLine"><span class="type">VisuLine</span></a> *line</code></em>,
<em class="parameter"><code><span class="type">float</span> rgb[3]</code></em>);
<span class="returnvalue">float</span>* <a class="link" href="v-sim-isoline.html#visu-line-project" title="visu_line_project ()">visu_line_project</a> (<em class="parameter"><code><a class="link" href="v-sim-isoline.html#VisuLine" title="VisuLine"><span class="type">VisuLine</span></a> *line</code></em>,
<em class="parameter"><code><a class="link" href="v-sim-plane.html#Plane"><span class="type">Plane</span></a> *plane</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *nSeg</code></em>);
<a class="link" href="v-sim-isoline.html#VisuLine" title="VisuLine"><span class="returnvalue">VisuLine</span></a>* <a class="link" href="v-sim-isoline.html#visu-line-newFromTriangles" title="visu_line_newFromTriangles ()">visu_line_newFromTriangles</a> (<em class="parameter"><code><span class="type">float</span> **data</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> nTriangles</code></em>,
<em class="parameter"><code><span class="type">double</span> isoValue</code></em>);
<span class="returnvalue">void</span> <a class="link" href="v-sim-isoline.html#visu-line-free" title="visu_line_free ()">visu_line_free</a> (<em class="parameter"><code><a class="link" href="v-sim-isoline.html#VisuLine" title="VisuLine"><span class="type">VisuLine</span></a> *line</code></em>);
<span class="returnvalue">double</span> <a class="link" href="v-sim-isoline.html#visu-line-getValue" title="visu_line_getValue ()">visu_line_getValue</a> (<em class="parameter"><code><a class="link" href="v-sim-isoline.html#VisuLine" title="VisuLine"><span class="type">VisuLine</span></a> *line</code></em>);
</pre>
</div>
<div class="refsect1" title="Description">
<a name="v-sim-isoline.description"></a><h2>Description</h2>
<p>
</p>
<p>TODO</p>
<p>
</p>
</div>
<div class="refsect1" title="Details">
<a name="v-sim-isoline.details"></a><h2>Details</h2>
<div class="refsect2" title="VisuLine">
<a name="VisuLine"></a><h3>VisuLine</h3>
<pre class="programlisting">typedef struct _VisuLine VisuLine;</pre>
<p>
Structure representing a curved line in 3D, opaque structure.
</p>
</div>
<hr>
<div class="refsect2" title="visu_line_draw ()">
<a name="visu-line-draw"></a><h3>visu_line_draw ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> visu_line_draw (<em class="parameter"><code><a class="link" href="v-sim-isoline.html#VisuLine" title="VisuLine"><span class="type">VisuLine</span></a> *line</code></em>,
<em class="parameter"><code><span class="type">float</span> rgb[3]</code></em>);</pre>
<p>
Call the OpenGL routine that will draw this line.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>line</code></em> :</span></p></td>
<td>a set of points forming a line.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>rgb</code></em> :</span></p></td>
<td>a colour.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 3.4</p>
</div>
<hr>
<div class="refsect2" title="visu_line_project ()">
<a name="visu-line-project"></a><h3>visu_line_project ()</h3>
<pre class="programlisting"><span class="returnvalue">float</span>* visu_line_project (<em class="parameter"><code><a class="link" href="v-sim-isoline.html#VisuLine" title="VisuLine"><span class="type">VisuLine</span></a> *line</code></em>,
<em class="parameter"><code><a class="link" href="v-sim-plane.html#Plane"><span class="type">Plane</span></a> *plane</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *nSeg</code></em>);</pre>
<p>
Calculate the projection of each <em class="parameter"><code>line</code></em> vertex on <em class="parameter"><code>plane</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>line</code></em> :</span></p></td>
<td>a <a class="link" href="v-sim-isoline.html#VisuLine" title="VisuLine"><span class="type">VisuLine</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>plane</code></em> :</span></p></td>
<td>a <a class="link" href="v-sim-plane.html#Plane"><span class="type">Plane</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>nSeg</code></em> :</span></p></td>
<td>a location to store the size of projection.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a newly allocated array of line segments. The size of this
array is 4 * <em class="parameter"><code>nSeg</code></em>, holding the two plane coordiantes of the two
vertices of a line.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 3.6</p>
</div>
<hr>
<div class="refsect2" title="visu_line_newFromTriangles ()">
<a name="visu-line-newFromTriangles"></a><h3>visu_line_newFromTriangles ()</h3>
<pre class="programlisting"><a class="link" href="v-sim-isoline.html#VisuLine" title="VisuLine"><span class="returnvalue">VisuLine</span></a>* visu_line_newFromTriangles (<em class="parameter"><code><span class="type">float</span> **data</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> nTriangles</code></em>,
<em class="parameter"><code><span class="type">double</span> isoValue</code></em>);</pre>
<p>
Create on the fly an isoline from a given set of triangles. If the
lines are created, <em class="parameter"><code>isoline</code></em> will be allocated and should be freed
with <a class="link" href="v-sim-isoline.html#visu-line-free" title="visu_line_free ()"><code class="function">visu_line_free()</code></a> after use.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>the lines to be computed ;
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>nTriangles</code></em> :</span></p></td>
<td>the surface to compute isoline from ;
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>isoValue</code></em> :</span></p></td>
<td>the value of the computed isoline.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the newly allocated <a class="link" href="v-sim-isoline.html#VisuLine" title="VisuLine"><span class="type">VisuLine</span></a> or NULL.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 3.6</p>
</div>
<hr>
<div class="refsect2" title="visu_line_free ()">
<a name="visu-line-free"></a><h3>visu_line_free ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> visu_line_free (<em class="parameter"><code><a class="link" href="v-sim-isoline.html#VisuLine" title="VisuLine"><span class="type">VisuLine</span></a> *line</code></em>);</pre>
<p>
Free the line object.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>line</code></em> :</span></p></td>
<td>a set of lines.
</td>
</tr></tbody>
</table></div>
<p class="since">Since 3.4</p>
</div>
<hr>
<div class="refsect2" title="visu_line_getValue ()">
<a name="visu-line-getValue"></a><h3>visu_line_getValue ()</h3>
<pre class="programlisting"><span class="returnvalue">double</span> visu_line_getValue (<em class="parameter"><code><a class="link" href="v-sim-isoline.html#VisuLine" title="VisuLine"><span class="type">VisuLine</span></a> *line</code></em>);</pre>
<p>
Lines are usually created as iso-values line in a mesh.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>line</code></em> :</span></p></td>
<td>a <a class="link" href="v-sim-isoline.html#VisuLine" title="VisuLine"><span class="type">VisuLine</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the value associated to the line.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 3.6</p>
</div>
</div>
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