moving the vector examples and adding comments

java/examples/Topics/Create Shapes/PrimitivePShape/PrimitivePShape.pde

@@ -9,7 +9,7 @@
 PShape circle;
 
 void setup() {  
-  size(640, 360, P3D);
+  size(640, 360, P2D);
   smooth();
   // Creating the PShape as an ellipse
   // The corner is -50,-50 so that the center is at 0,0 
@@ -19,8 +19,9 @@ void setup() {
 void draw() {
   background(51);
   // We can dynamically set the stroke and fill of the shape
-  circle.stroke(255);  // Not working in P2D??
-  circle.fill(map(mouseX,0,width,0,255));
+  circle.stroke(255);  
+  circle.strokeWeight(4);
+  circle.fill(map(mouseX,0,width,0,255)); // Not working in P2D??
   // We can use translate to move the PShape
   translate(mouseX, mouseY);
   // Drawing the PShape

java/examples/Topics/Create Shapes/SVGPShape/SVGPShape.pde

@@ -4,7 +4,7 @@
  * How to load an SVG into a PShape 
  */
 
-// PShapoe object
+// PShape object
 PShape svg;
 
 void setup() {

java/examples/Topics/Simulate/ForcesWithVectors/ForcesWithVectors.pde

@@ -5,16 +5,21 @@
  * Demonstration of multiple force acting on bodies (Mover class)
  * Bodies experience gravity continuously
  * Bodies experience fluid resistance when in "water"
+ *
+ * For the basics of working with PVector, see
+ * http://processing.org/learning/pvector/
+ * as well as examples in Topics/Vectors/
+ * 
  */
 
 // Five moving bodies
-Mover[] movers = new Mover[5];
+Mover[] movers = new Mover[10];
 
 // Liquid
 Liquid liquid;
 
 void setup() {
-  size(360, 640);
+  size(640, 360);
   smooth();
   reset();
   // Create liquid object
@@ -60,7 +65,7 @@ void mousePressed() {
 // Restart all the Mover objects randomly
 void reset() {
   for (int i = 0; i < movers.length; i++) {
-    movers[i] = new Mover(random(1, 5), 40+i*70, 0);
+    movers[i] = new Mover(random(0.5, 3), 40+i*70, 0);
   }
 }
 

java/examples/Topics/Simulate/GravitationalAttraction3D/GravitationalAttraction3D.pde

@@ -8,6 +8,11 @@
  * m2 --> mass of object #2
  * d ---> distance between objects
  * F = (G*m1*m2)/(d*d)
+ *
+ * For the basics of working with PVector, see
+ * http://processing.org/learning/pvector/
+ * as well as examples in Topics/Vectors/
+ * 
  */
 
 // A bunch of planets

java/examples/Topics/Vectors/AccelerationWithVectors/AccelerationWithVectors.pde

@@ -5,6 +5,9 @@
  * Demonstration of the basics of motion with vector.
  * A "Mover" object stores location, velocity, and acceleration as vectors
  * The motion is controlled by affecting the acceleration (in this case towards the mouse)
+ *
+ * For more examples of simulating motion and physics with vectors, see 
+ * Simulate/ForcesWithVectors, Simulate/GravitationalAttraction3D
  */
 
 // A Mover object

java/examples/Topics/Vectors/BouncingBall/BouncingBall.pde

@@ -3,7 +3,8 @@
  * by Daniel Shiffman.  
  * 
  * Demonstration of using vectors to control motion of body
- * This example is not object-oriented (see AccelerationWithVectors and ForcesWithVectors for OOP)
+ * This example is not object-oriented
+ * See AccelerationWithVectors for an example of how to simulate motion using vectors in an object
  */
  
 PVector location;  // Location of shape