290 lines
8.2 KiB
Groff
290 lines
8.2 KiB
Groff
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<title>colorMode() | reference | Processing.js</title>
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<span class="tagline">a port of the Processing Visualization Language</span>
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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>colorMode()</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="colorMode_.jpg" alt="example pic" /><pre class="margin">noStroke();
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colorMode(RGB, 100);
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for(int i=0; i<100; i++) {
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for(int j=0; j<100; j++) {
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stroke(i, j, 0);
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point(i, j);
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}
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}</pre></div><div class="example"><img src="colorMode_2.jpg" alt="example pic" /><pre class="margin">noStroke();
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colorMode(HSB, 100);
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for(int i=0; i<100; i++) {
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for(int j=0; j<100; j++) {
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stroke(i, j, 100);
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point(i, j);
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}
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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>Changes the way Processing interprets color data. By default, <b>fill()</b>, <b>stroke()</b>, and <b>background()</b> colors are set by values between 0 and 255 using the RGB color model. It is possible to change the numerical range used for specifying colors and to switch color systems. For example, calling <b>colorMode(RGB, 1.0)</b> will specify that values are specified between 0 and 1. The limits for defining colors are altered by setting the parameters range1, range2, range3, and range 4.</td>
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</tr>
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<tr class="">
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<th scope="row">Syntax</th>
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<td><pre>colorMode(<kbd>mode</kbd>);
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colorMode(<kbd>mode</kbd>, <kbd>range</kbd>);
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colorMode(<kbd>mode</kbd>, <kbd>range1</kbd>, <kbd>range2</kbd>, <kbd>range3</kbd>);
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colorMode(<kbd>mode</kbd>, <kbd>range1</kbd>, <kbd>range2</kbd>, <kbd>range3</kbd>, <kbd>range4</kbd>);</pre></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><table cellpadding="0" cellspacing="0" border="0">
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<tr class="">
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<th scope="row">mode</th>
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<td>Either RGB or HSB, corresponding to Red/Green/Blue and Hue/Saturation/Brightness</td>
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</tr>
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<tr class="">
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<th scope="row">range</th>
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<td>int or float: range for all color elements</td>
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</tr>
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<tr class="">
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<th scope="row">range1</th>
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<td>int or float: range for the red or hue depending on the current color mode</td>
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</tr>
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<tr class="">
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<th scope="row">range2</th>
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<td>int or float: range for the green or saturation depending on the current color mode</td>
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</tr>
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<tr class="">
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<th scope="row">range3</th>
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<td>int or float: range for the blue or brightness depending on the current color mode</td>
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</tr>
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<tr class="">
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<th scope="row">range4</th>
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<td>int or float: range for the alpha</td>
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</tr>
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</table></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="background_.1">background()</a><br />
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<a href="fill_.1">fill()</a><br />
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<a href="stroke_.1">stroke()</a><br /></td>
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</tr>
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</table>
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<p>This reference is licensed under the CC BY-NC-SA 2.0 license:</p>
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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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