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diff --git a/src/GearTest/Shaft.java b/src/GearTest/Shaft.java
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-/*
- * $RCSfile$
- *
- * Copyright (c) 2006 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 java.lang.Math.*;
-import javax.media.j3d.*;
-import javax.vecmath.*;
-
-public class Shaft extends javax.media.j3d.TransformGroup {
-
- /**
- * Construct a Shaft;
- * @return a new shaft that with the specified radius centered about
- * the origin an laying in the XY plane and of a specified length
- * extending in the Z dimension
- * @param radius radius of shaft
- * @param length shaft length shaft extends from -length/2 to length/2 in
- * the Z dimension
- * @param segmentCount number of segments for the shaft face
- * @param look the Appearance to associate with this shaft
- */
- public Shaft(float radius, float length, int segmentCount,
- Appearance look) {
- // The direction of the ray from the shaft's center
- float xDirection, yDirection;
- float xShaft, yShaft;
-
- // The z coordinates for the shaft's faces (never change)
- float frontZ = -0.5f * length;
- float rearZ = 0.5f * length;
-
- int shaftFaceVertexCount; // #(vertices) per shaft face
- int shaftFaceTotalVertexCount; // total #(vertices) in all teeth
- int shaftFaceStripCount[] = new int[1]; // per shaft vertex count
- int shaftVertexCount; // #(vertices) for shaft
- int shaftStripCount[] = new int[1]; // #(vertices) in strip/strip
-
- // Front and rear facing normals for the shaft's faces
- Vector3f frontNormal = new Vector3f(0.0f, 0.0f, -1.0f);
- Vector3f rearNormal = new Vector3f(0.0f, 0.0f, 1.0f);
- // Outward facing normal
- Vector3f outNormal = new Vector3f(1.0f, 0.0f, 0.0f);
-
- // Temporary variables for storing coordinates and vectors
- Point3f coordinate = new Point3f(0.0f, 0.0f, 0.0f);
- Shape3D newShape;
-
- // The angle subtended by a single segment
- double segmentAngle = 2.0 * Math.PI/segmentCount;
- double tempAngle;
-
- // Allow this object to spin. etc.
- this.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
-
- /* for the forward facing fan:
- * ___3___
- * - | -
- * / | \
- * 4/\ | /\2
- * / \ | / \
- * / \ | / \
- * : \ | / :
- * |--------------- *----------------|
- * 5 0 1
- *
- * for backward facing fan exchange 1 with 5; 2 with 4, etc.
- */
-
- // Construct the shaft's front and rear face
- shaftFaceVertexCount = segmentCount + 2;
- shaftFaceStripCount[0] = shaftFaceVertexCount;
-
- TriangleFanArray frontShaftFace
- = new TriangleFanArray(shaftFaceVertexCount,
- GeometryArray.COORDINATES
- | GeometryArray.NORMALS,
- shaftFaceStripCount);
-
- TriangleFanArray rearShaftFace
- = new TriangleFanArray(shaftFaceVertexCount,
- GeometryArray.COORDINATES
- | GeometryArray.NORMALS,
- shaftFaceStripCount);
-
- coordinate.set(0.0f, 0.0f, frontZ);
- frontShaftFace.setCoordinate(0, coordinate);
- frontShaftFace.setNormal(0, frontNormal);
-
- coordinate.set(0.0f, 0.0f, rearZ);
- rearShaftFace.setCoordinate(0, coordinate);
- rearShaftFace.setNormal(0, rearNormal);
-
- for(int index = 1; index < segmentCount+2; index++) {
-
- tempAngle = segmentAngle * -(double)index;
- coordinate.set(radius * (float)Math.cos(tempAngle),
- radius * (float)Math.sin(tempAngle),
- frontZ);
- frontShaftFace.setCoordinate(index, coordinate);
- frontShaftFace.setNormal(index, frontNormal);
-
- tempAngle = -tempAngle;
- coordinate.set(radius * (float)Math.cos(tempAngle),
- radius * (float)Math.sin(tempAngle),
- rearZ);
- rearShaftFace.setCoordinate(index, coordinate);
- rearShaftFace.setNormal(index, rearNormal);
- }
- newShape = new Shape3D(frontShaftFace, look);
- this.addChild(newShape);
- newShape = new Shape3D(rearShaftFace, look);
- this.addChild(newShape);
-
- // Construct shaft's outer skin (the cylinder body)
- shaftVertexCount = 2 * segmentCount + 2;
- shaftStripCount[0] = shaftVertexCount;
-
- TriangleStripArray shaft
- = new TriangleStripArray(shaftVertexCount,
- GeometryArray.COORDINATES
- | GeometryArray.NORMALS,
- shaftStripCount);
-
- outNormal.set(1.0f, 0.0f, 0.0f);
-
- coordinate.set(radius, 0.0f, rearZ);
- shaft.setCoordinate(0, coordinate);
- shaft.setNormal(0, outNormal);
-
- coordinate.set(radius, 0.0f, frontZ);
- shaft.setCoordinate(1, coordinate);
- shaft.setNormal(1, outNormal);
-
- for(int count = 0; count < segmentCount; count++) {
- int index = 2 + count * 2;
-
- tempAngle = segmentAngle * (double)(count + 1);
- xDirection = (float)Math.cos(tempAngle);
- yDirection = (float)Math.sin(tempAngle);
- xShaft = radius * xDirection;
- yShaft = radius * yDirection;
- outNormal.set(xDirection, yDirection, 0.0f);
-
- coordinate.set(xShaft, yShaft, rearZ);
- shaft.setCoordinate(index, coordinate);
- shaft.setNormal(index, outNormal);
-
- coordinate.set(xShaft, yShaft, frontZ);
- shaft.setCoordinate(index + 1, coordinate);
- shaft.setNormal(index + 1, outNormal);
- }
- newShape = new Shape3D(shaft, look);
- this.addChild(newShape);
- }
-}
-
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