topical media & game development
#javascript-processing-example-basic-transform-scale.htm / htm
<!DOCTYPE html>
<html><head>
<script src="javascript-processing-example-processing.js"></script>
<script src="javascript-processing-example-init.js"></script>
<link rel="stylesheet" href="javascript-processing-example-style.css">
</head><body><h1><a href="http://ejohn.org/blog/processingjs/">Processing.js</a></h1>
<h2>Scale</h2>
<p>by Denis Grutze.
Paramenters for the scale() function are values specified
as decimal percentages. For example, the method call scale(2.0)
will increase the dimension of the shape by 200 percent.
Objects always scale from the origin.</p>
<p><a href="http://processing.org/learning/basics/scale.html"><b>Original Processing.org Example:</b> Scale</a><br>
<script type="application/processing">
float a = 0.0;
float s = 0.0;
void setup()
{
size(200,200);
noStroke();
rectMode(CENTER);
frameRate(30);
}
void draw()
{
background(102);
a = a + 0.04;
s = cos(a)*2;
translate(width/2, height/2);
scale(s);
fill(51);
rect(0, 0, 50, 50);
translate(75, 0);
fill(255);
scale(s);
rect(0, 0, 50, 50);
}
</script><canvas width="200" height="200"></canvas></p>
<div style="overflow: hidden; height: 0px; width: 0px;"></div>
<pre><b>// All Examples Written by <a href="http://reas.com/">Casey Reas</a> and <a href="http://benfry.com/">Ben Fry</a>
// unless otherwise stated.</b>
float a = 0.0;
float s = 0.0;
void setup()
{
size(200,200);
noStroke();
rectMode(CENTER);
frameRate(30);
}
void draw()
{
background(102);
a = a + 0.04;
s = cos(a)*2;
translate(width/2, height/2);
scale(s);
fill(51);
rect(0, 0, 50, 50);
translate(75, 0);
fill(255);
scale(s);
rect(0, 0, 50, 50);
}</pre>
</body></html>
(C) Æliens
20/2/2008
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