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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | <html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>plsmem: Set the memory area to be plotted (RGB)</title><link rel="stylesheet" type="text/css" href="stylesheet.css"><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="The PLplot Plotting Library"><link rel="up" href="API.html" title="Chapter 18. The Common API for PLplot"><link rel="prev" href="plsmaj.html" title="plsmaj: Set length of major ticks"><link rel="next" href="plsmema.html" title="plsmema: Set the memory area to be plotted (RGBA)"></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">
<code class="function">plsmem</code>: Set the memory area to be plotted (RGB)
</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="plsmaj.html">Prev</a> </td><th width="60%" align="center">Chapter 18. The Common API for PLplot</th><td width="20%" align="right"> <a accesskey="n" href="plsmema.html">Next</a></td></tr></table><hr></div><div class="sect1"><div class="titlepage"><div><div><h4 class="title"><a name="plsmem"></a>
<code class="function">plsmem</code>: Set the memory area to be plotted (RGB)
</h4></div></div></div><p>
</p><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">
<b class="fsfunc">plsmem</b>
(</code></td><td><var class="pdparam">maxx</var>, </td></tr><tr><td> </td><td><var class="pdparam">maxy</var>, </td></tr><tr><td> </td><td><var class="pdparam">plotmem</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div><p>
</p><p>
Set the memory area to be plotted (with the <span class="quote">“<span class="quote">mem</span>”</span> or
<span class="quote">“<span class="quote">memcairo</span>”</span> driver)
as the <code class="literal">dev</code> member of the stream structure. Also
set the number of pixels in the memory passed in
<em class="parameter"><code>plotmem</code></em>, which is a block of memory
<em class="parameter"><code>maxy</code></em> by <em class="parameter"><code>maxx</code></em> by 3 bytes
long, say: 480 x 640 x 3 (Y, X, RGB)
</p><p>
This memory will have to be freed by the user!
</p><div class="variablelist"><dl class="variablelist"><dt><span class="term">
<em class="parameter"><code>maxx</code></em>
(<code class="literal">PLINT</code>, input)
</span></dt><dd><p>
Size of memory area in the X coordinate.
</p></dd><dt><span class="term">
<em class="parameter"><code>maxy</code></em>
(<code class="literal">PLINT</code>, input)
</span></dt><dd><p>
Size of memory area in the Y coordinate.
</p></dd><dt><span class="term">
<em class="parameter"><code>plotmem</code></em>
(<code class="literal">void *</code>, input)
</span></dt><dd><p>
Pointer to the beginning of the user-supplied memory area.
</p></dd></dl></div><p>
Redacted form: <code class="function">plsmem(maxx, maxy, plotmem)</code>
</p><p>
This function is not used in any examples.
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<code class="function">plsmaj</code>: Set length of major ticks
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<code class="function">plsmema</code>: Set the memory area to be plotted (RGBA)
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