Initial Commit

Java/Processing/processing-3.3.6/modes/java/examples/Basics/Math/Distance2D/Distance2D.pde

@@ -0,0 +1,27 @@
+/**
+ * Distance 2D. 
+ * 
+ * Move the mouse across the image to obscure and reveal the matrix.  
+ * Measures the distance from the mouse to each square and sets the
+ * size proportionally. 
+ */
+ 
+float max_distance;
+
+void setup() {
+  size(640, 360); 
+  noStroke();
+  max_distance = dist(0, 0, width, height);
+}
+
+void draw() {
+  background(0);
+
+  for(int i = 0; i <= width; i += 20) {
+    for(int j = 0; j <= height; j += 20) {
+      float size = dist(mouseX, mouseY, i, j);
+      size = size/max_distance * 66;
+      ellipse(i, j, size, size);
+    }
+  }
+}