192 lines
9.3 KiB
Groff
192 lines
9.3 KiB
Groff
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<title>textMode() | reference | Processing.js</title>
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<a href="http://processingjs.org/"><img src="../images/header.png" width="177" height="42"></a>
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<span class="tagline">a port of the Processing Visualization Language</span>
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<canvas width="940px" height="78px" data-processing-sources="/sketches/bannerSketch.pde"></canvas>
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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>textMode()</h3></td>
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</tr>
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<tr class="pjs">
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<th scope="row">Processing.js Behavior</th>
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<td>Font support for the Canvas element varies across browsers. FireFox currently has the best support, but still uses a pre-defined set of fonts. (Documentation to follow soon.) Good alternatives to the browser's Canvas-font functions are available: such as the <a href="http://bocoup.com/processing-js/docs/index.php?page=Cross-Browser%20Canvas%20Fonts">Glyph method</a>. See also: <a href="http://jim.studt.net/canvastext/">Canvas Text</a>, <a href="http://canvas.burnttoys.net/bauhaus.html">BurntToys Bauhaus</a>.
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<br /><br /><p><b>Please use the following demos to learn how fonts can be rendered in Firefox with Processing.js: <a href="http://processingjs.org/learning/basic/letters">Letters</a>, <a href="http://processingjs.org/learning/basic/words">Words</a>, <a href="http://processingjs.org/source/text-width/text-width.html">width()</a></b></p>
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</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="textMode_.gif" alt="example pic" /><pre class="margin">PFont metaBold;
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// The font "Meta-Bold.ttf" must be located in the
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// current sketch's "data" directory to load successfully
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metaBold = loadFont("Meta-Bold.ttf");
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String lines = "screen";
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textFont(metaBold);
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textMode(SCREEN);
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text(lines, 3, 70);</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>Sets the way text draws to the screen. In the default configuration (the MODEL mode), it's possible to rotate, scale,
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and place letters in two and three dimensional space. </p>
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<p>Changing to SCREEN mode draws letters directly to the front of the window and greatly increases rendering quality and speed when used with the P2D and P3D renderers.
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textMode(SCREEN) with OPENGL and JAVA2D (the default) renderers will generally be slower, though pixel accurate with P2D and P3D. With textMode(SCREEN),
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the letters draw at the actual size of the font (in pixels) and therefore calls to <b>textSize()</b> will not affect the size of the letters.
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To create a font at the size you desire, use the "Create font..." option in the Tools menu, or use the createFont() function. When using textMode(SCREEN),
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any z-coordinate passed to a text() command will be ignored, because your computer screen is...flat! </p>
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<p>The SHAPE mode draws text using the the glyph outlines of individual characters rather than as textures.
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This mode is only only supported with the PDF and OPENGL renderer settings. With the PDF renderer, you must call textMode(SHAPE) before any other drawing occurs.
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If the outlines are not available, then <b>textMode(SHAPE)</b> will be ignored and <b>textMode(MODEL)</b> will be used instead. </p>
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<p>The textMode(SHAPE) option in OPENGL mode can be combined with beginRaw() to write vector-accurate text to 2D and 3D output files, for instance DXF or PDF.
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textMode(SHAPE) is not currently optimized for OPENGL, so if recording shape data, use textMode(MODEL) until you're ready to capture the geometry with beginRaw().</p>
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</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>textMode(<kbd>MODE</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>
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<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 MODEL, SCREEN, or SHAPE</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">Returns</th>
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<td>None</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>
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<a href="loadFont_.1">loadFont() </a><br />
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<a href="PFont.1">PFont </a><br />
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<a href="text_.1">text()</a><br />
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<a href="textFont_.1">textFont()</a><br />
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<a href="createFont_.1">createFont()</a><br /</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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<h3><a href="http://processingjs.org/download/">Downloads</a></h3>
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<h3><a href="http://processingjs.org/articles/">Articles</a></h3>
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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/PomaxGuide.html">Pomax's Guide to processing-js</a></li>
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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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