199 lines
7.8 KiB
Groff
199 lines
7.8 KiB
Groff
<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=utf-8" />
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<title>PGraphics | reference | Processing.js</title>
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<div class="container">
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<div class="header">
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<a href="http://processingjs.org/"><img src="../images/header.png" width="177" height="42"></a>
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</div>
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<span class="tagline">a port of the Processing Visualization Language</span>
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<div class="navbar">
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<canvas width="940px" height="78px" data-processing-sources="/sketches/bannerSketch.pde"></canvas>
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<a class="viewsource" href="http://processingjs.org/sketches/bannerSketch.pde">view source</a>
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</div>
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<div class="page row">
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<div class="span11">
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<table cellpadding="0" cellspacing="0" border="0" class="ref-item">
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<tr class="name-row">
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<th scope="row">Name</th>
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<td><h3>PGraphics</h3></td>
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</tr>
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<tr class="">
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<th scope="row">Examples</th>
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<td><div class="example"><img src="pgraphics.jpg" alt="example pic" /><pre class="margin">PGraphics pg;
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void setup() {
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size(100, 100);
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pg = createGraphics(80, 80, P3D);
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}
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void draw() {
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pg.beginDraw();
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pg.background(102);
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pg.stroke(255);
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pg.line(40, 40, mouseX, mouseY);
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pg.endDraw();
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image(pg, 10, 10);
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}</pre></div></td>
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</tr>
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<tr class="">
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<th scope="row">Description</th>
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<td><p>Main graphics and rendering context, as well as the base API implementation for processing "core".
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Use this class if you need to draw into an off-screen graphics buffer. A PGraphics object can be constructed with the <b>createGraphics()</b> function.
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The <b>beginDraw()</b> and <b>endDraw()</b> methods (see above example) are necessary to set up the buffer and to finalize it.
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The fields and methods for this class are extensive; for a complete list visit the developer's reference: http://dev.processing.org/reference/core/</p></td>
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</tr>
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<tr class="">
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<th scope="row">Methods</th>
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<td>
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<table cellpadding="0" cellspacing="0" border="0">
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<tr class="">
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<th scope="row"><a href="PGraphics_beginDraw_">beginDraw()</a></th>
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<td>Sets up the rendering context</td>
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</tr>
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<tr class="">
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<th scope="row"><a href="PGraphics_endDraw_">endDraw()</a></th>
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<td>Finalizes the renderering context</td>
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</tr>
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</table>
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</td>
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</tr>
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<tr class="">
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<th scope="row"><!--*-->Constructor<!--*--></th>
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<td><pre>PGraphics()</pre><br />
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<pre>PGraphics(<kbd>width</kbd>,<kbd>height</kbd>)</pre><br />
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<pre>PGraphics(<kbd>width</kbd>,<kbd>height</kbd>,<kbd>applet</kbd>)</pre><br /></td>
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</tr>
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<tr class="">
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<th scope="row">Parameters</th>
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<td>
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<table cellpadding="0" cellspacing="0" border="0">
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<tr class="">
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<th scope="row">width</th>
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<td>int: width in pixels</td>
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</tr>
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<tr class="">
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<th scope="row">height</th>
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<td>int: height in pixels</td>
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</tr>
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<tr class="">
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<th scope="row">applet</th>
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<td>PApplet</td>
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</tr>
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</table>
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</td>
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</tr>
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<tr class="">
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<th scope="row">Usage</th>
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<td>Web & Application</td>
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</tr>
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<tr class="">
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<th scope="row">Related</th>
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<td><a href="createGraphics_.1">createGraphics()</a></td>
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</tr>
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</table>
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<div class="cclicense">
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<p>This reference is licensed under the CC BY-NC-SA 2.0 license:</p>
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<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/2.0/">
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<img alt="Creative Commons License" border="0" src="../images/somerights20.gif" />
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</a>
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</div>
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</div>
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<div class="sidebar span4">
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<h3><a href="http://processingjs.org/download/">Downloads</a></h3>
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<ul>
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<li><a href="http://processingjs.org/download/">Download the latest version of Processing.js!</a></li>
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</ul>
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<h3><a href="http://processingjs.org/articles/">Articles</a></h3>
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<ul>
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<li><a href="http://processingjs.org/articles/jsQuickStart.html">Quick Start - JavaScript Developer</a></li>
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<li><a href="http://processingjs.org/articles/p5QuickStart.html">Quick Start - Processing Developer</a></li>
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<li><a href="http://processingjs.org/articles/RenderingModes.html">Rendering Modes</a></li>
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<li><a href="http://processingjs.org/articles/PomaxGuide.html">Pomax's Guide to processing-js</a></li>
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</ul>
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<h3><a>Web IDEs</a></h3>
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<ul>
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<li><a href="http://sketchpad.cc">Sketchpad.cc</a></li>
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<li><a href="http://processingjs.org/tools/processing-helper.html">Processing.js Helper</a></li>
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<li><a href="http://www.openprocessing.org">OpenProcessing.org</a></li>
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</ul>
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<h3><a href="http://processingjs.org/community/">Community</a></h3>
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<ul>
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<li><a href="irc://irc.mozilla.org/processing.js">IRC Channel</a></li>
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<li><a href="http://processing-js.lighthouseapp.com/">Bug Tracker</a></li>
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<li><a href="http://github.com/processing-js/processing-js/">Github Repository</a></li>
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<li><a href="http://groups.google.com/group/processingjs">Google Group</a></li>
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<li><a href="http://zenit.senecac.on.ca/wiki/index.php/">Open Source @ Seneca</a></li>
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</ul>
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<h3><a href="http://twitter.com/processingjs">Twitter Feed</a></h3>
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<div class="twitter"></div>
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</div>
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</div>
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<div class="footer">
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Processing is an open visualization language developed by
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<a href="http://benfry.com/">Ben Fry</a> & <a href="http://reas.com/">Casey Reas</a>,
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and originally ported to Javascript by
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<a href="http://ejohn.org/blog/processingjs/">John Resig</a>.
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Processing.js is maintained by the Processing.js team.
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</div>
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</div>
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<a href="http://github.com/processing-js/processing-js/">
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