2002-04-15 00:12:54 +00:00
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<?xml version="1.0" encoding="iso-8859-1"?>
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2002-04-17 06:45:35 +00:00
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<!-- $Revision: 1.2 $ -->
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2002-04-15 00:12:54 +00:00
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<!-- splitted from ./en/functions/swf.xml, last change in rev 1.8 -->
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<refentry id="function.swf-lookat">
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<refnamediv>
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<refname>swf_lookat</refname>
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<refpurpose>Define a viewing transformation</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>void</type><methodname>swf_lookat</methodname>
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<methodparam><type>float</type><parameter>view_x</parameter></methodparam>
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<methodparam><type>float</type><parameter>view_y</parameter></methodparam>
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<methodparam><type>float</type><parameter>view_z</parameter></methodparam>
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<methodparam><type>float</type><parameter>reference_x</parameter></methodparam>
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<methodparam><type>float</type><parameter>reference_y</parameter></methodparam>
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<methodparam><type>float</type><parameter>reference_z</parameter></methodparam>
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<methodparam><type>float</type><parameter>twist</parameter></methodparam>
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</methodsynopsis>
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<para>
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The <function>swf_lookat</function> function defines a viewing
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transformation by giving the viewing position (the parameters
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<parameter>view_x</parameter>, <parameter>view_y</parameter>, and
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<parameter>view_z</parameter>) and the coordinates of a reference
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point in the scene, the reference point is defined by the
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<parameter>reference_x</parameter>, <parameter>reference_y
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</parameter>, and <parameter>reference_z</parameter> parameters.
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The <parameter>twist </parameter> controls the rotation along
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with viewer's z axis.
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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