j3dcore: add a getCenter(Point3d) to the Bounds interface and implement it in the implementing classes

Signed-off-by: Harvey Harrison <[email protected]>

4 files changed, 27 insertions, 15 deletions

diff --git a/src/classes/share/javax/media/j3d/BoundingBox.java b/src/classes/share/javax/media/j3d/BoundingBox.java
index c0a30b2..b1baee4 100644
--- a/src/classes/share/javax/media/j3d/BoundingBox.java
+++ b/src/classes/share/javax/media/j3d/BoundingBox.java
@@ -1838,6 +1838,11 @@ private void setInfiniteBounds() {
 	 return centroid;
      }
 
+public void getCenter(Point3d center) {
+	center.add(lower, upper);
+	center.scale(0.5d);
+}
+
     void translate(BoundingBox bbox, Vector3d value) {
 	if (bbox == null || bbox.boundsIsEmpty) {
 		setEmptyBounds();
diff --git a/src/classes/share/javax/media/j3d/BoundingPolytope.java b/src/classes/share/javax/media/j3d/BoundingPolytope.java
index e9e62df..b95eeb3 100644
--- a/src/classes/share/javax/media/j3d/BoundingPolytope.java
+++ b/src/classes/share/javax/media/j3d/BoundingPolytope.java
@@ -1714,6 +1714,10 @@ public class BoundingPolytope extends Bounds {
 	return centroid;
     }
 
+public void getCenter(Point3d center) {
+	center.set(centroid);
+}
+
     /**
      * if the passed the "region" is same type as this object
      * then do a copy, otherwise clone the Bounds  and
diff --git a/src/classes/share/javax/media/j3d/BoundingSphere.java b/src/classes/share/javax/media/j3d/BoundingSphere.java
index e7bec53..d25424a 100644
--- a/src/classes/share/javax/media/j3d/BoundingSphere.java
+++ b/src/classes/share/javax/media/j3d/BoundingSphere.java
@@ -272,16 +272,13 @@ public BoundingSphere(Bounds[] boundsObjects) {
 	updateBoundsStates();
     }
 
-    /**
-     * Returns the position of this bounding sphere as a point.
-     * @param center a Point to receive the center of the bounding sphere
-
-     */
-    public void getCenter(Point3d center) {
-	center.x = this.center.x;
-	center.y = this.center.y;
-	center.z = this.center.z;
-    }
+/**
+ * Returns the position of this bounding sphere as a point.
+ * @param center a Point to receive the center of the bounding sphere
+ */
+public void getCenter(Point3d center) {
+	center.set(this.center);
+}
 
 /**
  * Sets the position of this bounding sphere from a point.
diff --git a/src/classes/share/javax/media/j3d/Bounds.java b/src/classes/share/javax/media/j3d/Bounds.java
index 9a0daf6..5759d50 100644
--- a/src/classes/share/javax/media/j3d/Bounds.java
+++ b/src/classes/share/javax/media/j3d/Bounds.java
@@ -170,11 +170,17 @@ public abstract class Bounds extends Object implements Cloneable {
      */
   public abstract Bounds closestIntersection( Bounds[] boundsObjects);
 
-     /**
-     * Returns the center of the bounds
-     * @return bounds center
-     */
-  abstract Point3d getCenter();
+/**
+ * Returns the center of the bounds
+ * @return bounds center
+ */
+abstract Point3d getCenter();
+
+/**
+ * Gets the centroid of this bounding region.
+ * @param center a Point to receive the centroid of the bounding region
+ */
+public abstract void getCenter(Point3d center);
 
      /**
       * Combines this bounding object with a bounding object so that the