Initial Commit

Java/Processing/processing-3.3.6/modes/java/examples/Topics/Drawing/Pattern/Pattern.pde

@@ -0,0 +1,30 @@
+/**
+ * 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);
+}
+
+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);
+}