java/examples/Basics/Transform/Scale/Scale.pde

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+/**
+ * Scale 
+ * 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. 
+ */
+ 
+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);       
+}