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<refentry xml:id="function.swf-polarview" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>swf_polarview</refname>
  <refpurpose>Define the viewer's position with polar coordinates</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>void</type><methodname>swf_polarview</methodname>
   <methodparam><type>float</type><parameter>dist</parameter></methodparam>
   <methodparam><type>float</type><parameter>azimuth</parameter></methodparam>
   <methodparam><type>float</type><parameter>incidence</parameter></methodparam>
   <methodparam><type>float</type><parameter>twist</parameter></methodparam>
  </methodsynopsis>
  <para>
   The <function>swf_polarview</function> function defines the
   viewer's position in polar coordinates.  
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>dist</parameter></term>
     <listitem>
      <para>
       The distance between the viewpoint to the world space origin.  
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>azimuth</parameter></term>
     <listitem>
      <para>
       Defines the azimuthal angle in the x,y coordinate plane, measured in
       distance from the y axis.  
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>incidence</parameter></term>
     <listitem>
      <para>
       Defines the angle of incidence in the y,z plane, measured in distance
       from the z axis.  The incidence angle is defined as the angle of the
       viewport relative to the z axis.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>twist</parameter></term>
     <listitem>
      <para>
       Specifies the amount that the viewpoint is to be rotated about the
       line of sight using the right hand rule.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.void;
  </para>
 </refsect1>
</refentry>

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