
<refentry id="gluTessBeginContour">
    <refmeta>
        <refmetainfo>
            <copyright>
                <year>1991-2006</year>
                <holder>Silicon Graphics, Inc.</holder>
            </copyright>
        </refmetainfo>
        <refentrytitle>gluTessBeginContour</refentrytitle>
        <manvolnum>3G</manvolnum>
    </refmeta>
    <refnamediv>
        <refname>gluTessBeginContour</refname>
        <refpurpose>delimit a contour description</refpurpose>
    </refnamediv>
    <refsynopsisdiv><title>C Specification</title>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>gluTessBeginContour</function></funcdef>
                <paramdef>GLUtesselator* <parameter>tess</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
    </refsynopsisdiv>
    <refsynopsisdiv><title>C Specification</title>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>gluTessEndContour</function></funcdef>
                <paramdef>GLUtesselator* <parameter>tess</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
    </refsynopsisdiv>
    <!-- eqn: ignoring delim $$ -->
    <refsect1 id="parameters"><title>Parameters</title>
        <variablelist>
        <varlistentry>
            <term><parameter>tess</parameter></term>
            <listitem>
                <para>
                    Specifies the tessellation object (created with <citerefentry><refentrytitle>gluNewTess</refentrytitle></citerefentry>).
                </para>
            </listitem>
        </varlistentry>
        </variablelist>
    </refsect1>
    <refsect1 id="description"><title>Description</title>
        <para>
            <function>gluTessBeginContour</function> and <citerefentry><refentrytitle>gluTessEndContour</refentrytitle></citerefentry> delimit the definition of a
            polygon contour. Within each <function>gluTessBeginContour</function>/<citerefentry><refentrytitle>gluTessEndContour</refentrytitle></citerefentry>
            pair, there can be zero or more calls to <citerefentry><refentrytitle>gluTessVertex</refentrytitle></citerefentry>. The vertices
            specify a closed contour (the last vertex of each contour is automatically linked 
            to the first).  See the <citerefentry><refentrytitle>gluTessVertex</refentrytitle></citerefentry> reference page for more details.
            <function>gluTessBeginContour</function> can only be called between <citerefentry><refentrytitle>gluTessBeginPolygon</refentrytitle></citerefentry> and <citerefentry><refentrytitle>gluTessEndPolygon</refentrytitle></citerefentry>.
        </para>
    </refsect1>
    <refsect1 id="seealso"><title>See Also</title>
        <para>
            <citerefentry><refentrytitle>gluNewTess</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>gluTessBeginPolygon</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>gluTessCallback</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>gluTessEndPolygon</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>gluTessNormal</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>gluTessProperty</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>gluTessVertex</refentrytitle></citerefentry>
        </para>
    </refsect1>
    <refsect1 id="Copyright"><title>Copyright</title>
        <para>
            Copyright <trademark class="copyright"></trademark> 1991-2006
            Silicon Graphics, Inc. This document is licensed under the SGI
            Free Software B License. For details, see
            <ulink url="http://oss.sgi.com/projects/FreeB/">http://oss.sgi.com/projects/FreeB/</ulink>.
        </para>
    </refsect1>
</refentry>
