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><head><title>glePolyCylinder</title><link rel="stylesheet" href="style.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.59.1"/><link rel="home" href="index.xml" title="PyOpenGL 2.0.1.07 Man Pages"/><link rel="up" href="reference-GLE.xml" title="GLE"/><link rel="previous" href="glePolyCone.3GLE.xml" title="glePolyCone"/><link rel="next" href="gleScrew.3GLE.xml" title="gleScrew"/></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">glePolyCylinder</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="glePolyCone.3GLE.xml">Prev</a> </td><th width="60%" align="center">GLE</th><td width="20%" align="right"> <a accesskey="n" href="gleScrew.3GLE.xml">Next</a></td></tr></table><hr/></div><div class="refentry" lang="en"><a name="glePolyCylinder.3GLE"/><div class="titlepage"/><div class="refnamediv"><a name="glePolyCylinder.3GLE-name"/><h2>Name</h2><p>glePolyCylinder &#8212; Draw polycylinder, specified as a polyline.</p></div><div class="refsynopsisdiv"><a name="glePolyCylinder.3GLE-c_spec"/><h2>C Specification</h2><table class="funcprototype" border="0" cellpadding="0" cellspacing="0"><tr><td valign="top"><code>void <tt>glePolyCylinder</tt></code></td><td valign="top"><code>(</code></td><td valign="top"><code>int <i><tt>npoints</tt></i>, gleDouble <i><tt>point_array</tt></i>[][3], float <i><tt>color_array</tt></i>[][3], gleDouble <i><tt>radius</tt></i>);</code></td></tr></table></div><div class="refsynopsisdiv"><a name="glePolyCylinder.3GLE-python_specification"/><h2>Python Specification</h2><table class="funcprototype" border="0" cellpadding="0" cellspacing="0"><tr><td valign="top"><code><tt>glePolyCylinder</tt></code></td><td valign="top"><code>(</code></td><td valign="top"><code><i><tt>point_array</tt></i>[][3], <i><tt>color_array</tt></i>[][3], <i><tt>radius</tt></i>) &#8594; <tt>None</tt></code></td></tr></table></div><div class="refsect1" lang="en"><a name="glePolyCylinder.3GLE-parameters"/><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><i><tt>npoints</tt></i></span></dt><dd>
						numpoints in poly-line
					</dd><dt><span class="term"><i><tt>point_array</tt></i></span></dt><dd>
						polyline vertices
					</dd><dt><span class="term"><i><tt>color_array</tt></i></span></dt><dd>
						colors at polyline verts
					</dd><dt><span class="term"><i><tt>radius</tt></i></span></dt><dd>
						cylinder radius
					</dd></dl></div></div><div class="refsect1" lang="en"><a name="glePolyCylinder.3GLE-description"/><h2>Description</h2><p>
			Draw polycylinder, specified as a polyline. </p><p>
				
			</p><p> Note that neither the very first segment, nor the very last segment are drawn. The first and last segments
			serve only to define the angle of the join at the very ends of the polyline. Thus, to draw one segment, three must be
			specified. To draw two segments, four must be specified, etc.
		</p><p>
			The color array may be <tt>NULL</tt>. If <tt>NULL</tt>, the current color is used. If not
			<tt>NULL</tt>, the <a href="glColor.3G.xml"><tt>glColor3f</tt></a> routine is used to set the color;
			therefore, specifying the <a href="glColorMaterial.3G.xml"><tt>glColorMaterial</tt></a> subroutine before this primitive can
			be used to set diffuse, specular, ambient, etc. colors.
		</p><p>
			By default, the cross-section of the cylinder is drawn as a 20-sided polygon. This number can be changed using the
			<a href="gleSetNumSides.3GLE.xml"><tt>gleSetNumSides</tt></a> routine.
		</p></div><div class="refsect1" lang="en"><a name="glePolyCylinder.3GLE-see_also"/><h2>See Also</h2><p>
			<span class="simplelist"><a href="glePolyCone.3GLE.xml">glePolyCone</a>, <a href="gleSetNumSides.3GLE.xml">gleSetNumSides</a></span>
		</p></div><div class="refsect1" lang="en"><a name="glePolyCylinder.3GLE-author"/><h2>Author</h2><p>
			Linas Vepstas
		</p></div></div><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="glePolyCone.3GLE.xml">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="reference-GLE.xml">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="gleScrew.3GLE.xml">Next</a></td></tr><tr><td width="40%" align="left" valign="top">glePolyCone </td><td width="20%" align="center"><a accesskey="h" href="index.xml">Home</a></td><td width="40%" align="right" valign="top"> gleScrew</td></tr></table></div></body></html>