java/examples/Topics/Drawing/Pattern/applet/Pattern.java

@@ -0,0 +1,54 @@
+import processing.core.*; 
+
+import java.applet.*; 
+import java.awt.*; 
+import java.awt.image.*; 
+import java.awt.event.*; 
+import java.io.*; 
+import java.net.*; 
+import java.text.*; 
+import java.util.*; 
+import java.util.zip.*; 
+import java.util.regex.*; 
+
+public class Pattern extends PApplet {
+
+/**
+ * Patterns. 
+ * 
+ * Move the cursor over the image to draw with a software tool 
+ * which responds to the speed of the mouse. 
+ */
+ 
+public void setup()
+{
+  size(640, 360);
+  background(102);
+  smooth();
+}
+
+public void draw() 
+{
+  // Call the variableEllipse() method and send it the
+  // parameters for the current mouse position
+  // and the previous mouse position
+  variableEllipse(mouseX, mouseY, pmouseX, pmouseY);
+}
+
+
+// The simple method variableEllipse() was created specifically 
+// for this program. It calculates the speed of the mouse
+// and draws a small ellipse if the mouse is moving slowly
+// and draws a large ellipse if the mouse is moving quickly 
+
+public void variableEllipse(int x, int y, int px, int py) 
+{
+  float speed = abs(x-px) + abs(y-py);
+  stroke(speed);
+  ellipse(x, y, speed, speed);
+}
+
+  static public void main(String args[]) {
+    PApplet.main(new String[] { "Pattern" });
+  }
+}

java/examples/Topics/Drawing/Pattern/applet/Pattern.pde

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+/**
+ * Patterns. 
+ * 
+ * Move the cursor over the image to draw with a software tool 
+ * which responds to the speed of the mouse. 
+ */
+ 
+void setup()
+{
+  size(640, 360);
+  background(102);
+  smooth();
+}
+
+void draw() 
+{
+  // Call the variableEllipse() method and send it the
+  // parameters for the current mouse position
+  // and the previous mouse position
+  variableEllipse(mouseX, mouseY, pmouseX, pmouseY);
+}
+
+
+// The simple method variableEllipse() was created specifically 
+// for this program. It calculates the speed of the mouse
+// and draws a small ellipse if the mouse is moving slowly
+// and draws a large ellipse if the mouse is moving quickly 
+
+void variableEllipse(int x, int y, int px, int py) 
+{
+  float speed = abs(x-px) + abs(y-py);
+  stroke(speed);
+  ellipse(x, y, speed, speed);
+}