1 files changed, 123 insertions, 0 deletions
diff --git a/src/AlternateAppearance/SphereGroup.java b/src/AlternateAppearance/SphereGroup.java
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+++ b/src/AlternateAppearance/SphereGroup.java
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+/*
+ * $RCSfile$
+ *
+ * Copyright (c) 2004 Sun Microsystems, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in
+ *   the documentation and/or other materials provided with the
+ *   distribution.
+ *
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * This software is provided "AS IS," without a warranty of any
+ * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
+ * EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
+ * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
+ * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
+ * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
+ * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
+ * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
+ * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
+ * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ *
+ * You acknowledge that this software is not designed, licensed or
+ * intended for use in the design, construction, operation or
+ * maintenance of any nuclear facility.
+ *
+ * $Revision$
+ * $Date$
+ * $State$
+ */
+
+import javax.media.j3d.*;
+import javax.vecmath.*;
+import com.sun.j3d.utils.geometry.*;
+
+public class SphereGroup
+	extends Group
+{
+    Shape3D[] shapes;
+    int numShapes = 0;
+	//  Constructors
+	public SphereGroup( )
+	{
+		//    radius   x,y spacing   x,y count  appearance
+		this( 0.25f,   0.75f, 0.75f,   5, 5,      null, false );
+	}
+
+	public SphereGroup( Appearance app )
+	{
+		//    radius   x,y spacing   x,y count  appearance
+		this( 0.25f,   0.75f, 0.75f,   5, 5,      app, false );
+	}
+
+	public SphereGroup( float radius, float xSpacing, float ySpacing,
+		int xCount, int yCount, boolean overrideflag )
+	{
+		this( radius,  xSpacing, ySpacing, xCount, yCount, null, overrideflag );
+	}
+
+    public SphereGroup( float radius, float xSpacing, float ySpacing,
+			int xCount, int yCount, Appearance app, boolean overrideflag )
+    {
+	if ( app == null )
+	    {
+		app = new Appearance( );
+		Material material = new Material( );
+		material.setDiffuseColor( new Color3f( 0.8f, 0.8f, 0.8f ) );
+		material.setSpecularColor( new Color3f( 0.0f, 0.0f, 0.0f ) );
+		material.setShininess( 0.0f );
+		app.setMaterial( material );
+	    }
+
+	double xStart = -xSpacing * (double)(xCount-1) / 2.0;
+	double yStart = -ySpacing * (double)(yCount-1) / 2.0;
+
+	Sphere sphere = null;
+	TransformGroup trans = null;
+	Transform3D t3d = new Transform3D( );
+	Vector3d vec = new Vector3d( );
+	double x, y = yStart, z = 0.0;
+	shapes = new Shape3D[xCount * yCount];
+	for ( int i = 0; i < yCount; i++ )
+	    {
+		x = xStart;
+		for ( int j = 0; j < xCount; j++ ) {
+		    vec.set( x, y, z );
+		    t3d.setTranslation( vec );
+		    trans = new TransformGroup( t3d );
+		    addChild( trans );
+
+		    sphere = new Sphere(
+					radius,     // sphere radius
+					Primitive.GENERATE_NORMALS,  // generate normals
+					16,         // 16 divisions radially
+					app );      // it's appearance
+		    trans.addChild( sphere );
+		    x += xSpacing;
+		    shapes[numShapes] = sphere.getShape();
+		    if (overrideflag) 
+			shapes[numShapes].setCapability(Shape3D.ALLOW_APPEARANCE_OVERRIDE_WRITE);
+		    numShapes++;
+		}
+		y += ySpacing;
+	    }
+    }
+    Shape3D[] getShapes() {
+	return shapes;
+    }
+    
+}