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7faf1d71 AW |
1 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "xhtml1-transitional.dtd"> |
2 | <!-- saved from url=(0013)about:internet --> | |
3 | <?xml-stylesheet type="text/xsl" href="mathml.xsl"?><html xmlns="http://www.w3.org/1999/xhtml" xmlns:pref="http://www.w3.org/2002/Math/preference" pref:renderer="mathplayer-dl"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>gluOrtho2D</title><meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="gluOrtho2D"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>gluOrtho2D — define a 2D orthographic projection matrix</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr><td><code class="funcdef">void <b class="fsfunc">gluOrtho2D</b>(</code></td><td>GLdouble </td><td><var class="pdparam">left</var>, </td></tr><tr><td> </td><td>GLdouble </td><td><var class="pdparam">right</var>, </td></tr><tr><td> </td><td>GLdouble </td><td><var class="pdparam">bottom</var>, </td></tr><tr><td> </td><td>GLdouble </td><td><var class="pdparam">top</var><code>)</code>;</td></tr></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>left</code></em>, </span><span class="term"><em class="parameter"><code>right</code></em></span></dt><dd><p> | |
4 | Specify the coordinates for the left and right vertical clipping planes. | |
5 | </p></dd><dt><span class="term"><em class="parameter"><code>bottom</code></em>, </span><span class="term"><em class="parameter"><code>top</code></em></span></dt><dd><p> | |
6 | Specify the coordinates for the bottom and top horizontal clipping planes. | |
7 | </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p> | |
8 | <code class="function">gluOrtho2D</code> sets up a two-dimensional orthographic viewing region. | |
9 | This is equivalent to calling <a class="citerefentry" href="glOrtho.xml"><span class="citerefentry"><span class="refentrytitle">glOrtho</span></span></a> with | |
10 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> | |
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13 | <mml:mi mathvariant="italic">near</mml:mi> | |
14 | <mml:mo>=</mml:mo> | |
15 | <mml:mn>-1</mml:mn> | |
16 | </mml:mrow> | |
17 | </mml:math> | |
18 | and | |
19 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> | |
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22 | <mml:mi mathvariant="italic">far</mml:mi> | |
23 | <mml:mo>=</mml:mo> | |
24 | <mml:mn>1</mml:mn> | |
25 | </mml:mrow> | |
26 | </mml:math>. | |
27 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p> | |
28 | <a class="citerefentry" href="glOrtho.xml"><span class="citerefentry"><span class="refentrytitle">glOrtho</span></span></a>, | |
29 | <a class="citerefentry" href="gluPerspective.xml"><span class="citerefentry"><span class="refentrytitle">gluPerspective</span></span></a> | |
30 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p> | |
31 | Copyright <span class="trademark"></span>© 1991-2006 | |
32 | Silicon Graphics, Inc. This document is licensed under the SGI | |
33 | Free Software B License. For details, see | |
34 | <a class="ulink" href="http://oss.sgi.com/projects/FreeB/" target="_top">http://oss.sgi.com/projects/FreeB/</a>. | |
35 | </p></div></div></body></html> |