3 files changed, 10 insertions, 5 deletions
diff --git a/src/tesseract/objects/Ellipsoid.java b/src/tesseract/objects/Ellipsoid.java
index da6dd79..617bdb8 100644
--- a/src/tesseract/objects/Ellipsoid.java
+++ b/src/tesseract/objects/Ellipsoid.java
@@ -29,7 +29,8 @@ public class Ellipsoid extends PhysicalObject {
 	/**
 	 * Default mass.
 	 */
-	private static final float DEFAULT_MASS = 1;
+	//private static final float DEFAULT_MASS = Float.POSITIVE_INFINITY;
+	private static final float DEFAULT_MASS = 10;
 	
 	/**
 	 * Number of divisions in the sphere.
diff --git a/src/tesseract/objects/Particle.java b/src/tesseract/objects/Particle.java
index a5b6029..6dcc864 100644
--- a/src/tesseract/objects/Particle.java
+++ b/src/tesseract/objects/Particle.java
@@ -5,6 +5,7 @@ import java.awt.Color;
 import javax.media.j3d.Appearance;
 import javax.media.j3d.ColoringAttributes;
 import javax.media.j3d.Node;
+import javax.media.j3d.TransformGroup;
 import javax.vecmath.Color3f;
 import javax.vecmath.Vector3f;
 
@@ -61,7 +62,7 @@ public class Particle extends PhysicalObject {
 	 * @param theColor The particle color or null for random.
 	 * @return A sphere to visually represent the particle.
 	 */
-	private Node createShape(final Color3f theColor) {
+	private TransformGroup createShape(final Color3f theColor) {
 		Color3f color = theColor;
 		
 		ColoringAttributes cAttr;
@@ -74,7 +75,10 @@ public class Particle extends PhysicalObject {
 		cAttr = new ColoringAttributes(color, ColoringAttributes.FASTEST);
 		Appearance appearance = new Appearance();
 		appearance.setColoringAttributes(cAttr);
-		return new Sphere(RADIUS, Sphere.ENABLE_GEOMETRY_PICKING | Sphere.GEOMETRY_NOT_SHARED,
+		Sphere sphere = new Sphere(RADIUS, Sphere.ENABLE_GEOMETRY_PICKING | Sphere.GEOMETRY_NOT_SHARED,
 				DIVISIONS, appearance);
+		TransformGroup tg = new TransformGroup();
+		tg.addChild(sphere);
+		return tg;
 	}
 }
diff --git a/src/tesseract/objects/PlanarPolygon.java b/src/tesseract/objects/PlanarPolygon.java
index 94fb011..5782fa7 100644
--- a/src/tesseract/objects/PlanarPolygon.java
+++ b/src/tesseract/objects/PlanarPolygon.java
@@ -40,8 +40,8 @@ public class PlanarPolygon extends PhysicalObject {
 	/**
 	 * Default mass.
 	 */
-	//private static final float DEFAULT_MASS = Float.POSITIVE_INFINITY;
-	private static final float DEFAULT_MASS = 1;
+	private static final float DEFAULT_MASS = Float.POSITIVE_INFINITY;
+	//private static final float DEFAULT_MASS = 6;
 	
 	/**
 	 * Number of divisions in the sphere.