java/examples/Basics/Shape/ScaleShape/applet/ScaleShape.pde

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+/**
+ * Scale Shape.  
+ * Illustration by George Brower. 
+ * 
+ * Move the mouse left and right to zoom the SVG file.
+ * This shows how, unlike an imported image, the lines
+ * remain smooth at any size.
+ */
+
+PShape bot;
+
+void setup() {
+  size(640, 360);
+  smooth();
+  // The file "bot1.svg" must be in the data folder
+  // of the current sketch to load successfully
+  bot = loadShape("bot1.svg");
+} 
+
+void draw() {
+  background(102);
+  translate(width/2, height/2);
+  float zoom = map(mouseX, 0, width, 0.1, 4.5);
+  scale(zoom);
+  shape(bot, -140, -140);
+}