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<h2><span class="refentrytitle"><a name="libg3d-primitive.top_of_page"></a>primitive</span></h2>
<p>primitive — 3D primitive generation functions</p>
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<td valign="top" align="right"></td>
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<div class="refsynopsisdiv">
<a name="libg3d-primitive.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include &lt;g3d/primitive.h&gt;

<a class="link" href="libg3d-object.html#G3DObject" title="G3DObject"><span class="returnvalue">G3DObject</span></a> *         <a class="link" href="libg3d-primitive.html#g3d-primitive-cube" title="g3d_primitive_cube ()">g3d_primitive_cube</a>                  (<em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> width</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> height</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> depth</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-material.html#G3DMaterial" title="G3DMaterial"><span class="type">G3DMaterial</span></a> *material</code></em>);
<a class="link" href="libg3d-object.html#G3DObject" title="G3DObject"><span class="returnvalue">G3DObject</span></a> *         <a class="link" href="libg3d-primitive.html#g3d-primitive-box" title="g3d_primitive_box ()">g3d_primitive_box</a>                   (<em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> width</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> height</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> depth</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-material.html#G3DMaterial" title="G3DMaterial"><span class="type">G3DMaterial</span></a> *material</code></em>);
<a class="link" href="libg3d-object.html#G3DObject" title="G3DObject"><span class="returnvalue">G3DObject</span></a> *         <a class="link" href="libg3d-primitive.html#g3d-primitive-box-strip-2d" title="g3d_primitive_box_strip_2d ()">g3d_primitive_box_strip_2d</a>          (<em class="parameter"><code><span class="type">guint32</span> vcnt</code></em>,
                                                         <em class="parameter"><code><span class="type">gdouble</span> *vdata</code></em>,
                                                         <em class="parameter"><code><span class="type">gdouble</span> height</code></em>,
                                                         <em class="parameter"><code><span class="type">gdouble</span> width</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-material.html#G3DMaterial" title="G3DMaterial"><span class="type">G3DMaterial</span></a> *material</code></em>);
<a class="link" href="libg3d-object.html#G3DObject" title="G3DObject"><span class="returnvalue">G3DObject</span></a> *         <a class="link" href="libg3d-primitive.html#g3d-primitive-mesh" title="g3d_primitive_mesh ()">g3d_primitive_mesh</a>                  (<em class="parameter"><code><span class="type">guint32</span> m</code></em>,
                                                         <em class="parameter"><code><span class="type">guint32</span> n</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> wrap_m</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> wrap_n</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-material.html#G3DMaterial" title="G3DMaterial"><span class="type">G3DMaterial</span></a> *material</code></em>);
<a class="link" href="libg3d-object.html#G3DObject" title="G3DObject"><span class="returnvalue">G3DObject</span></a> *         <a class="link" href="libg3d-primitive.html#g3d-primitive-cylinder" title="g3d_primitive_cylinder ()">g3d_primitive_cylinder</a>              (<em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> radius</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> height</code></em>,
                                                         <em class="parameter"><code><span class="type">guint32</span> sides</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> top</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> bottom</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-material.html#G3DMaterial" title="G3DMaterial"><span class="type">G3DMaterial</span></a> *material</code></em>);
<a class="link" href="libg3d-object.html#G3DObject" title="G3DObject"><span class="returnvalue">G3DObject</span></a> *         <a class="link" href="libg3d-primitive.html#g3d-primitive-tube" title="g3d_primitive_tube ()">g3d_primitive_tube</a>                  (<em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> r_in</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> r_out</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> height</code></em>,
                                                         <em class="parameter"><code><span class="type">guint32</span> sides</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> top</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> bottom</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-material.html#G3DMaterial" title="G3DMaterial"><span class="type">G3DMaterial</span></a> *material</code></em>);
<a class="link" href="libg3d-object.html#G3DObject" title="G3DObject"><span class="returnvalue">G3DObject</span></a> *         <a class="link" href="libg3d-primitive.html#g3d-primitive-sphere" title="g3d_primitive_sphere ()">g3d_primitive_sphere</a>                (<em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> radius</code></em>,
                                                         <em class="parameter"><code><span class="type">guint32</span> vseg</code></em>,
                                                         <em class="parameter"><code><span class="type">guint32</span> hseg</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-material.html#G3DMaterial" title="G3DMaterial"><span class="type">G3DMaterial</span></a> *material</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="libg3d-primitive.description"></a><h2>Description</h2>
<p>
Primitives are objects containing basic 3D geometrical structures. A
variety of them can be created using these functions.
</p>
</div>
<div class="refsect1">
<a name="libg3d-primitive.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="g3d-primitive-cube"></a><h3>g3d_primitive_cube ()</h3>
<pre class="programlisting"><a class="link" href="libg3d-object.html#G3DObject" title="G3DObject"><span class="returnvalue">G3DObject</span></a> *         g3d_primitive_cube                  (<em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> width</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> height</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> depth</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-material.html#G3DMaterial" title="G3DMaterial"><span class="type">G3DMaterial</span></a> *material</code></em>);</pre>
<p>
Generates an object containing a box. It is deprecated and now a wrapper for
<a class="link" href="libg3d-primitive.html#g3d-primitive-box" title="g3d_primitive_box ()"><code class="function">g3d_primitive_box()</code></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td>
<td>the width of the box</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>height</code></em> :</span></p></td>
<td>the height of the box</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>depth</code></em> :</span></p></td>
<td>the depth of the box</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>material</code></em> :</span></p></td>
<td>the material to use for all faces</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the box object</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-primitive-box"></a><h3>g3d_primitive_box ()</h3>
<pre class="programlisting"><a class="link" href="libg3d-object.html#G3DObject" title="G3DObject"><span class="returnvalue">G3DObject</span></a> *         g3d_primitive_box                   (<em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> width</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> height</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> depth</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-material.html#G3DMaterial" title="G3DMaterial"><span class="type">G3DMaterial</span></a> *material</code></em>);</pre>
<p>
Generates an object containing a box.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td>
<td>the width of the box</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>height</code></em> :</span></p></td>
<td>the height of the box</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>depth</code></em> :</span></p></td>
<td>the depth of the box</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>material</code></em> :</span></p></td>
<td>the material to use for all faces</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the box object</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-primitive-box-strip-2d"></a><h3>g3d_primitive_box_strip_2d ()</h3>
<pre class="programlisting"><a class="link" href="libg3d-object.html#G3DObject" title="G3DObject"><span class="returnvalue">G3DObject</span></a> *         g3d_primitive_box_strip_2d          (<em class="parameter"><code><span class="type">guint32</span> vcnt</code></em>,
                                                         <em class="parameter"><code><span class="type">gdouble</span> *vdata</code></em>,
                                                         <em class="parameter"><code><span class="type">gdouble</span> height</code></em>,
                                                         <em class="parameter"><code><span class="type">gdouble</span> width</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-material.html#G3DMaterial" title="G3DMaterial"><span class="type">G3DMaterial</span></a> *material</code></em>);</pre>
<p>
Generates a strip of box segments defined by corner center points
using two-dimensional data (x/z plane).
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>vcnt</code></em> :</span></p></td>
<td>number of control points</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>vdata</code></em> :</span></p></td>
<td>2-dimensional control point data (2 * vcnt * gdouble)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>height</code></em> :</span></p></td>
<td>height of resulting strip (y component)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td>
<td>width of strip (corner diameter)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>material</code></em> :</span></p></td>
<td>material to use for faces</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>strip object</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-primitive-mesh"></a><h3>g3d_primitive_mesh ()</h3>
<pre class="programlisting"><a class="link" href="libg3d-object.html#G3DObject" title="G3DObject"><span class="returnvalue">G3DObject</span></a> *         g3d_primitive_mesh                  (<em class="parameter"><code><span class="type">guint32</span> m</code></em>,
                                                         <em class="parameter"><code><span class="type">guint32</span> n</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> wrap_m</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> wrap_n</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-material.html#G3DMaterial" title="G3DMaterial"><span class="type">G3DMaterial</span></a> *material</code></em>);</pre>
<p>
Generate a mesh consisting of m * n vertices. The vertex data is
initialized with (0.0, 0.0, 0.0) and has to be set to something
useful.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>m</code></em> :</span></p></td>
<td>number of vertices in m direction</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n</code></em> :</span></p></td>
<td>number of vertices in n direction</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>wrap_m</code></em> :</span></p></td>
<td>wrap around in m direction</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>wrap_n</code></em> :</span></p></td>
<td>wrap around in n direction</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>material</code></em> :</span></p></td>
<td>material to use for faces</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>mesh object</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-primitive-cylinder"></a><h3>g3d_primitive_cylinder ()</h3>
<pre class="programlisting"><a class="link" href="libg3d-object.html#G3DObject" title="G3DObject"><span class="returnvalue">G3DObject</span></a> *         g3d_primitive_cylinder              (<em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> radius</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> height</code></em>,
                                                         <em class="parameter"><code><span class="type">guint32</span> sides</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> top</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> bottom</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-material.html#G3DMaterial" title="G3DMaterial"><span class="type">G3DMaterial</span></a> *material</code></em>);</pre>
<p>
Generates an object containing a cylinder.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>radius</code></em> :</span></p></td>
<td>the radius of the cylinder</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>height</code></em> :</span></p></td>
<td>the height of the side faces</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>sides</code></em> :</span></p></td>
<td>number of side faces (number of circle segments)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>top</code></em> :</span></p></td>
<td>add top faces</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>bottom</code></em> :</span></p></td>
<td>add bottom faces</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>material</code></em> :</span></p></td>
<td>material to use for faces</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>cylinder object</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-primitive-tube"></a><h3>g3d_primitive_tube ()</h3>
<pre class="programlisting"><a class="link" href="libg3d-object.html#G3DObject" title="G3DObject"><span class="returnvalue">G3DObject</span></a> *         g3d_primitive_tube                  (<em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> r_in</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> r_out</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> height</code></em>,
                                                         <em class="parameter"><code><span class="type">guint32</span> sides</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> top</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> bottom</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-material.html#G3DMaterial" title="G3DMaterial"><span class="type">G3DMaterial</span></a> *material</code></em>);</pre>
<p>
Generates an object containing a tube (a cylinder with a hole).
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>r_in</code></em> :</span></p></td>
<td>inner radius</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>r_out</code></em> :</span></p></td>
<td>outer radius</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>height</code></em> :</span></p></td>
<td>the height of the side faces</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>sides</code></em> :</span></p></td>
<td>number of side faces (number of circle segments)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>top</code></em> :</span></p></td>
<td>add top faces</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>bottom</code></em> :</span></p></td>
<td>add bottom faces</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>material</code></em> :</span></p></td>
<td>material to use for faces</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>tube object</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-primitive-sphere"></a><h3>g3d_primitive_sphere ()</h3>
<pre class="programlisting"><a class="link" href="libg3d-object.html#G3DObject" title="G3DObject"><span class="returnvalue">G3DObject</span></a> *         g3d_primitive_sphere                (<em class="parameter"><code><a class="link" href="libg3d-types.html#G3DFloat" title="G3DFloat"><span class="type">G3DFloat</span></a> radius</code></em>,
                                                         <em class="parameter"><code><span class="type">guint32</span> vseg</code></em>,
                                                         <em class="parameter"><code><span class="type">guint32</span> hseg</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libg3d-material.html#G3DMaterial" title="G3DMaterial"><span class="type">G3DMaterial</span></a> *material</code></em>);</pre>
<p>
Generates an object containing a sphere.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>radius</code></em> :</span></p></td>
<td>radius</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>vseg</code></em> :</span></p></td>
<td>number of vertical segments</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>hseg</code></em> :</span></p></td>
<td>number of horizontal segments</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>material</code></em> :</span></p></td>
<td>material to use for faces</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>sphere object</td>
</tr>
</tbody>
</table></div>
</div>
</div>
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