List of usage examples for javax.media.j3d Shape3D Shape3D
public Shape3D(Geometry geometry, Appearance appearance)
From source file:AppearanceExplorer.java
Shape3D createTexTris() {
Point3f pnt[] = new Point3f[9];
pnt[0] = new Point3f(-0.8f, -0.8f, 0.0f);
pnt[1] = new Point3f(-0.5f, -0.7f, 0.0f);
pnt[2] = new Point3f(-0.7f, 0.7f, 0.0f);
pnt[3] = new Point3f(-0.4f, 0.7f, 0.0f);
pnt[4] = new Point3f(0.0f, -0.7f, 0.0f);
pnt[5] = new Point3f(0.4f, 0.7f, 0.0f);
pnt[6] = new Point3f(0.5f, 0.7f, 0.0f);
pnt[7] = new Point3f(0.5f, -0.7f, 0.0f);
pnt[8] = new Point3f(0.9f, 0.0f, 0.0f);
TexCoord2f texCoord[] = new TexCoord2f[9];
texCoord[0] = new TexCoord2f(0.05f, 0.90f);
texCoord[1] = new TexCoord2f(0.25f, 0.10f);
texCoord[2] = new TexCoord2f(1.00f, 0.60f);
texCoord[3] = texCoord[0];/*from w w w . jav a 2 s . co m*/
texCoord[4] = texCoord[1];
texCoord[5] = texCoord[2];
texCoord[6] = texCoord[0];
texCoord[7] = texCoord[1];
texCoord[8] = texCoord[2];
TriangleArray ta = new TriangleArray(9, GeometryArray.COORDINATES | GeometryArray.TEXTURE_COORDINATE_2);
ta.setCoordinates(0, pnt);
ta.setTextureCoordinates(0, 0, texCoord);
return new Shape3D(ta, appearance);
}
From source file:AppearanceExplorer.java
Shape3D createTexSquare() {
// color cube
Point3f pnt[] = new Point3f[4];
pnt[0] = new Point3f(-1.0f, -1.0f, 0.0f);
pnt[1] = new Point3f(1.0f, -1.0f, 0.0f);
pnt[2] = new Point3f(1.0f, 1.0f, 0.0f);
pnt[3] = new Point3f(-1.0f, 1.0f, 0.0f);
TexCoord2f texCoord[] = new TexCoord2f[4];
texCoord[0] = new TexCoord2f(0.0f, 0.0f);
texCoord[1] = new TexCoord2f(1.0f, 0.0f);
texCoord[2] = new TexCoord2f(1.0f, 1.0f);
texCoord[3] = new TexCoord2f(0.0f, 1.0f);
QuadArray qa = new QuadArray(4, GeometryArray.COORDINATES | GeometryArray.TEXTURE_COORDINATE_2);
qa.setCoordinates(0, pnt);/*from w w w. j a v a 2s. c om*/
qa.setTextureCoordinates(0, 0, texCoord);
return new Shape3D(qa, appearance);
}
From source file:AppearanceExplorer.java
Shape3D createLargeTexSquare() {
// color cube
Point3f pnt[] = new Point3f[4];
pnt[0] = new Point3f(-1.0f, -1.0f, 0.0f);
pnt[1] = new Point3f(1.0f, -1.0f, 0.0f);
pnt[2] = new Point3f(1.0f, 1.0f, 0.0f);
pnt[3] = new Point3f(-1.0f, 1.0f, 0.0f);
TexCoord2f texCoord[] = new TexCoord2f[4];
texCoord[0] = new TexCoord2f(-1.0f, -1.0f);
texCoord[1] = new TexCoord2f(2.0f, -1.0f);
texCoord[2] = new TexCoord2f(2.0f, 2.0f);
texCoord[3] = new TexCoord2f(-1.0f, 2.0f);
QuadArray qa = new QuadArray(4, GeometryArray.COORDINATES | GeometryArray.TEXTURE_COORDINATE_2);
qa.setCoordinates(0, pnt);/*from ww w . j av a 2 s . c o m*/
qa.setTextureCoordinates(0, 0, texCoord);
return new Shape3D(qa, appearance);
}
From source file:AppearanceExplorer.java
Shape3D createColorCube() {
// color cube
int[] indices = { 0, 3, 4, 2, // left face x = -1
0, 1, 5, 3, // bottom face y = -1
0, 2, 6, 1, // back face z = -1
7, 5, 1, 6, // right face x = 1
7, 6, 2, 4, // top face y = 1
7, 4, 3, 5 // front face z = 1
};//from ww w . ja v a2 s . co m
Point3f pts[] = new Point3f[8];
pts[0] = new Point3f(-1.0f, -1.0f, -1.0f);
pts[1] = new Point3f(1.0f, -1.0f, -1.0f);
pts[2] = new Point3f(-1.0f, 1.0f, -1.0f);
pts[3] = new Point3f(-1.0f, -1.0f, 1.0f);
pts[4] = new Point3f(-1.0f, 1.0f, 1.0f);
pts[5] = new Point3f(1.0f, -1.0f, 1.0f);
pts[6] = new Point3f(1.0f, 1.0f, -1.0f);
pts[7] = new Point3f(1.0f, 1.0f, 1.0f);
Color3f colr[] = new Color3f[8];
colr[0] = black;
colr[1] = red;
colr[2] = green;
colr[3] = blue;
colr[4] = cyan;
colr[5] = magenta;
colr[6] = yellow;
colr[7] = white;
// The normals point out from 0,0,0, through the verticies of the
// cube. These can be calculated by copying the coordinates to
// a Vector3f and normalizing.
Vector3f norm[] = new Vector3f[8];
for (int i = 0; i < 8; i++) {
norm[i] = new Vector3f(pts[i]);
norm[i].normalize();
}
IndexedQuadArray iqa = new IndexedQuadArray(8,
GeometryArray.COORDINATES | GeometryArray.COLOR_3 | GeometryArray.NORMALS, 24);
iqa.setCoordinates(0, pts);
iqa.setColors(0, colr);
iqa.setNormals(0, norm);
iqa.setCoordinateIndices(0, indices);
iqa.setColorIndices(0, indices);
iqa.setNormalIndices(0, indices);
return new Shape3D(iqa, appearance);
}
From source file:AppearanceExplorer.java
Shape3D createNGCube(float creaseAngle) { // color cube int[] indices = { 0, 3, 4, 2, // left face x = -1 0, 1, 5, 3, // bottom face y = -1 0, 2, 6, 1, // back face z = -1 7, 5, 1, 6, // right face x = 1 7, 6, 2, 4, // top face y = 1 7, 4, 3, 5 // front face z = 1 };//from w w w. j a va 2 s. co m Point3f pts[] = new Point3f[8]; pts[0] = new Point3f(-1.0f, -1.0f, -1.0f); pts[1] = new Point3f(1.0f, -1.0f, -1.0f); pts[2] = new Point3f(-1.0f, 1.0f, -1.0f); pts[3] = new Point3f(-1.0f, -1.0f, 1.0f); pts[4] = new Point3f(-1.0f, 1.0f, 1.0f); pts[5] = new Point3f(1.0f, -1.0f, 1.0f); pts[6] = new Point3f(1.0f, 1.0f, -1.0f); pts[7] = new Point3f(1.0f, 1.0f, 1.0f); GeometryInfo gi = new GeometryInfo(GeometryInfo.QUAD_ARRAY); gi.setCoordinates(pts); gi.setCoordinateIndices(indices); NormalGenerator ng = new NormalGenerator(); ng.setCreaseAngle((float) Math.toRadians(creaseAngle)); ng.generateNormals(gi); GeometryArray cube = gi.getGeometryArray(); return new Shape3D(cube, appearance); }
From source file:AppearanceExplorer.java
Shape3D createTriWithHole() {
int[] stripCounts = new int[2];
stripCounts[0] = 3;/*from w w w. j av a2 s. c om*/
stripCounts[1] = 3;
int[] contourCounts = new int[1];
contourCounts[0] = 2;
Point3f pnt[] = new Point3f[6];
pnt[0] = new Point3f(-1.0f, -1.0f, 0.0f);
pnt[1] = new Point3f(1.0f, -1.0f, 0.0f);
pnt[2] = new Point3f(1.0f, 1.0f, 0.0f);
pnt[3] = new Point3f(-0.6f, -0.8f, 0.0f);
pnt[4] = new Point3f(0.8f, 0.6f, 0.0f);
pnt[5] = new Point3f(0.8f, -0.8f, 0.0f);
GeometryInfo gi = new GeometryInfo(GeometryInfo.POLYGON_ARRAY);
gi.setCoordinates(pnt);
gi.setStripCounts(stripCounts);
gi.setContourCounts(contourCounts);
Triangulator tr = new Triangulator();
tr.triangulate(gi);
GeometryArray triWithHole = gi.getGeometryArray();
return new Shape3D(triWithHole, appearance);
}
From source file:AppearanceExplorer.java
Shape3D createText3D() {
Font3D f3d = new Font3D(new Font(null, Font.PLAIN, 2), new FontExtrusion());
Text3D t3d = new Text3D(f3d, "Text3D", new Point3f(-3.0f, -1.0f, 0.0f));
Shape3D textShape = new Shape3D(t3d, appearance);
return textShape;
}
From source file:ExLinearFog.java
private void addBox(float width, float height, float depth, float y, float width2, float depth2, int flags) { float[] coordinates = { // around the bottom -width / 2.0f, -height / 2.0f, depth / 2.0f, width / 2.0f, -height / 2.0f, depth / 2.0f, width / 2.0f, -height / 2.0f, -depth / 2.0f, -width / 2.0f, -height / 2.0f, -depth / 2.0f, // around the top -width2 / 2.0f, height / 2.0f, depth2 / 2.0f, width2 / 2.0f, height / 2.0f, depth2 / 2.0f, width2 / 2.0f, height / 2.0f, -depth2 / 2.0f, -width2 / 2.0f, height / 2.0f, -depth2 / 2.0f, }; int[] fullCoordinateIndexes = { 0, 1, 5, 4, // front 1, 2, 6, 5, // right 2, 3, 7, 6, // back 3, 0, 4, 7, // left 4, 5, 6, 7, // top 3, 2, 1, 0, // bottom };//from www . ja v a2s.co m float v = -(width2 - width) / height; float[] normals = { 0.0f, v, 1.0f, // front 1.0f, v, 0.0f, // right 0.0f, v, -1.0f, // back -1.0f, v, 0.0f, // left 0.0f, 1.0f, 0.0f, // top 0.0f, -1.0f, 0.0f, // bottom }; int[] fullNormalIndexes = { 0, 0, 0, 0, // front 1, 1, 1, 1, // right 2, 2, 2, 2, // back 3, 3, 3, 3, // left 4, 4, 4, 4, // top 5, 5, 5, 5, // bottom }; float[] textureCoordinates = { 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f, }; int[] fullTextureCoordinateIndexes = { 0, 1, 2, 3, // front 0, 1, 2, 3, // right 0, 1, 2, 3, // back 0, 1, 2, 3, // left 0, 1, 2, 3, // top 0, 1, 2, 3, // bottom }; // Select indexes needed int[] coordinateIndexes; int[] normalIndexes; int[] textureCoordinateIndexes; if (flags == 0) { // build neither top or bottom coordinateIndexes = new int[4 * 4]; textureCoordinateIndexes = new int[4 * 4]; normalIndexes = new int[4 * 4]; for (int i = 0; i < 4 * 4; i++) { coordinateIndexes[i] = fullCoordinateIndexes[i]; textureCoordinateIndexes[i] = fullTextureCoordinateIndexes[i]; normalIndexes[i] = fullNormalIndexes[i]; } } else if ((flags & (BUILD_TOP | BUILD_BOTTOM)) == (BUILD_TOP | BUILD_BOTTOM)) { // build top and bottom coordinateIndexes = fullCoordinateIndexes; textureCoordinateIndexes = fullTextureCoordinateIndexes; normalIndexes = fullNormalIndexes; } else if ((flags & BUILD_TOP) != 0) { // build top but not bottom coordinateIndexes = new int[5 * 4]; textureCoordinateIndexes = new int[5 * 4]; normalIndexes = new int[5 * 4]; for (int i = 0; i < 5 * 4; i++) { coordinateIndexes[i] = fullCoordinateIndexes[i]; textureCoordinateIndexes[i] = fullTextureCoordinateIndexes[i]; normalIndexes[i] = fullNormalIndexes[i]; } } else { // build bottom but not top coordinateIndexes = new int[5 * 4]; textureCoordinateIndexes = new int[5 * 4]; normalIndexes = new int[5 * 4]; for (int i = 0; i < 4 * 4; i++) { coordinateIndexes[i] = fullCoordinateIndexes[i]; textureCoordinateIndexes[i] = fullTextureCoordinateIndexes[i]; normalIndexes[i] = fullNormalIndexes[i]; } for (int i = 5 * 4; i < 6 * 4; i++) { coordinateIndexes[i - 4] = fullCoordinateIndexes[i]; textureCoordinateIndexes[i - 4] = fullTextureCoordinateIndexes[i]; normalIndexes[i - 4] = fullNormalIndexes[i]; } } IndexedQuadArray quads = new IndexedQuadArray(coordinates.length, // number // of // vertexes GeometryArray.COORDINATES | // vertex coordinates given GeometryArray.NORMALS | // normals given GeometryArray.TEXTURE_COORDINATE_2, // texture // coordinates given coordinateIndexes.length); // number of coordinate indexes quads.setCoordinates(0, coordinates); quads.setCoordinateIndices(0, coordinateIndexes); quads.setNormals(0, normals); quads.setNormalIndices(0, normalIndexes); quads.setTextureCoordinates(0, textureCoordinates); quads.setTextureCoordinateIndices(0, textureCoordinateIndexes); Shape3D box = new Shape3D(quads, mainAppearance); Vector3f trans = new Vector3f(0.0f, y, 0.0f); Transform3D tr = new Transform3D(); tr.set(trans); // translate TransformGroup tg = new TransformGroup(tr); tg.addChild(box); addChild(tg); }
From source file:ExLinearFog.java
private void addCylinder(float radius, float height, float y) { ////from w w w. j av a2 s .c om // Compute coordinates, normals, and texture coordinates // around the top and bottom of a cylinder // float[] coordinates = new float[NSTEPS * 2 * 3]; // xyz float[] normals = new float[NSTEPS * 2 * 3]; // xyz vector float[] textureCoordinates = new float[NSTEPS * 2 * 2]; // st float angle = 0.0f; float deltaAngle = 2.0f * (float) Math.PI / ((float) NSTEPS - 1); float s = 0.0f; float deltaS = 1.0f / ((float) NSTEPS - 1); int n = 0; int tn = 0; float h2 = height / 2.0f; for (int i = 0; i < NSTEPS; i++) { // bottom normals[n + 0] = (float) Math.cos(angle); normals[n + 1] = 0.0f; normals[n + 2] = -(float) Math.sin(angle); coordinates[n + 0] = radius * normals[n + 0]; coordinates[n + 1] = -h2; coordinates[n + 2] = radius * normals[n + 2]; textureCoordinates[tn + 0] = s; textureCoordinates[tn + 1] = 0.0f; n += 3; tn += 2; // top normals[n + 0] = normals[n - 3]; normals[n + 1] = 0.0f; normals[n + 2] = normals[n - 1]; coordinates[n + 0] = coordinates[n - 3]; coordinates[n + 1] = h2; coordinates[n + 2] = coordinates[n - 1]; textureCoordinates[tn + 0] = s; textureCoordinates[tn + 1] = 1.0f; n += 3; tn += 2; angle += deltaAngle; s += deltaS; } // // Compute coordinate indexes, normal indexes, and texture // coordinate indexes awround the sides of a cylinder. // For this application, we don't need top or bottom, so // skip them. // int[] indexes = new int[NSTEPS * 4]; n = 0; int p = 0; // panel count for (int i = 0; i < NSTEPS - 1; i++) { indexes[n + 0] = p; // bottom left indexes[n + 1] = p + 2; // bottom right (next panel) indexes[n + 2] = p + 3; // top right (next panel) indexes[n + 3] = p + 1; // top left n += 4; p += 2; } indexes[n + 0] = p; // bottom left indexes[n + 1] = 0; // bottom right (next panel) indexes[n + 2] = 1; // top right (next panel) indexes[n + 3] = p + 1; // top left IndexedQuadArray quads = new IndexedQuadArray(coordinates.length / 3, // number // of // vertexes GeometryArray.COORDINATES | // format GeometryArray.NORMALS | GeometryArray.TEXTURE_COORDINATE_2, indexes.length); // number // of // indexes quads.setCoordinates(0, coordinates); quads.setTextureCoordinates(0, textureCoordinates); quads.setNormals(0, normals); quads.setCoordinateIndices(0, indexes); quads.setTextureCoordinateIndices(0, indexes); quads.setNormalIndices(0, indexes); Shape3D shape = new Shape3D(quads, mainAppearance); Vector3f trans = new Vector3f(0.0f, y, 0.0f); Transform3D tr = new Transform3D(); tr.set(trans); // translate TransformGroup tg = new TransformGroup(tr); tg.addChild(shape); addChild(tg); }
From source file:GearTest.java
/** * Construct a SpurGear's teeth by adding the teeth shape nodes * /* w w w . jav a 2 s . c o m*/ * @param pitchCircleRadius * radius at center of teeth * @param rootRadius * distance from pitch circle to top of teeth * @param outsideRadius * distance from pitch circle to root of teeth * @param gearThickness * thickness of the gear * @param toothTipThickness * thickness of the tip of the tooth * @param toothToValleyAngleRatio * the ratio of the angle subtended by the tooth to the angle * subtended by the valley (must be <= .25) * @param look * the gear's appearance object */ void addTeeth(float pitchCircleRadius, float rootRadius, float outsideRadius, float gearThickness, float toothTipThickness, float toothToValleyAngleRatio, Appearance look) { int index; Shape3D newShape; // Temporaries that store start angle for each portion of tooth facet double toothStartAngle, toothTopStartAngle, toothDeclineStartAngle, toothValleyStartAngle, nextToothStartAngle; // The x and y coordinates at each point of a facet and at each // point on the gear: at the shaft, the root of the teeth, and // the outer point of the teeth float xRoot0, yRoot0; float xOuter1, yOuter1; float xOuter2, yOuter2; float xRoot3, yRoot3; float xRoot4, yRoot4; // The z coordinates for the gear final float frontZ = -0.5f * gearThickness; final float rearZ = 0.5f * gearThickness; // The z coordinates for the tooth tip of the gear final float toothTipFrontZ = -0.5f * toothTipThickness; final float toothTipRearZ = 0.5f * toothTipThickness; int toothFacetVertexCount; // #(vertices) per tooth facet int toothFacetCount; // #(facets) per tooth int toothFaceTotalVertexCount; // #(vertices) in all teeth int toothFaceStripCount[] = new int[toothCount]; // per tooth vertex count int topVertexCount; // #(vertices) for teeth tops int topStripCount[] = new int[1]; // #(vertices) in strip/strip // Front and rear facing normals for the teeth faces Vector3f frontToothNormal = new Vector3f(0.0f, 0.0f, -1.0f); Vector3f rearToothNormal = new Vector3f(0.0f, 0.0f, 1.0f); // Normals for teeth tops up incline, tooth top, and down incline Vector3f leftNormal = new Vector3f(-1.0f, 0.0f, 0.0f); Vector3f rightNormal = new Vector3f(1.0f, 0.0f, 0.0f); Vector3f outNormal = new Vector3f(1.0f, 0.0f, 0.0f); Vector3f inNormal = 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); Point3f tempCoordinate1 = new Point3f(0.0f, 0.0f, 0.0f); Point3f tempCoordinate2 = new Point3f(0.0f, 0.0f, 0.0f); Point3f tempCoordinate3 = new Point3f(0.0f, 0.0f, 0.0f); Vector3f tempVector1 = new Vector3f(0.0f, 0.0f, 0.0f); Vector3f tempVector2 = new Vector3f(0.0f, 0.0f, 0.0f); /* * Construct the gear's front facing teeth facets 0______2 / /\ / / \ / / \ * //___________\ 1 3 */ toothFacetVertexCount = 4; toothFaceTotalVertexCount = toothFacetVertexCount * toothCount; for (int i = 0; i < toothCount; i++) toothFaceStripCount[i] = toothFacetVertexCount; TriangleStripArray frontGearTeeth = new TriangleStripArray(toothFaceTotalVertexCount, GeometryArray.COORDINATES | GeometryArray.NORMALS, toothFaceStripCount); for (int count = 0; count < toothCount; count++) { index = count * toothFacetVertexCount; toothStartAngle = gearStartAngle + circularPitchAngle * (double) count; toothTopStartAngle = toothStartAngle + toothTopAngleIncrement; toothDeclineStartAngle = toothStartAngle + toothDeclineAngleIncrement; toothValleyStartAngle = toothStartAngle + toothValleyAngleIncrement; xRoot0 = rootRadius * (float) Math.cos(toothStartAngle); yRoot0 = rootRadius * (float) Math.sin(toothStartAngle); xOuter1 = outsideRadius * (float) Math.cos(toothTopStartAngle); yOuter1 = outsideRadius * (float) Math.sin(toothTopStartAngle); xOuter2 = outsideRadius * (float) Math.cos(toothDeclineStartAngle); yOuter2 = outsideRadius * (float) Math.sin(toothDeclineStartAngle); xRoot3 = rootRadius * (float) Math.cos(toothValleyStartAngle); yRoot3 = rootRadius * (float) Math.sin(toothValleyStartAngle); tempCoordinate1.set(xRoot0, yRoot0, frontZ); tempCoordinate2.set(xRoot3, yRoot3, frontZ); tempVector1.sub(tempCoordinate2, tempCoordinate1); tempCoordinate2.set(xOuter1, yOuter1, toothTipFrontZ); tempVector2.sub(tempCoordinate2, tempCoordinate1); frontToothNormal.cross(tempVector1, tempVector2); frontToothNormal.normalize(); coordinate.set(xOuter1, yOuter1, toothTipFrontZ); frontGearTeeth.setCoordinate(index, coordinate); frontGearTeeth.setNormal(index, frontToothNormal); coordinate.set(xRoot0, yRoot0, frontZ); frontGearTeeth.setCoordinate(index + 1, coordinate); frontGearTeeth.setNormal(index + 1, frontToothNormal); coordinate.set(xOuter2, yOuter2, toothTipFrontZ); frontGearTeeth.setCoordinate(index + 2, coordinate); frontGearTeeth.setNormal(index + 2, frontToothNormal); coordinate.set(xRoot3, yRoot3, frontZ); frontGearTeeth.setCoordinate(index + 3, coordinate); frontGearTeeth.setNormal(index + 3, frontToothNormal); } newShape = new Shape3D(frontGearTeeth, look); this.addChild(newShape); /* * Construct the gear's rear facing teeth facets (Using Quads) 1______2 / \ / \ / \ * /____________\ 0 3 */ toothFacetVertexCount = 4; toothFaceTotalVertexCount = toothFacetVertexCount * toothCount; QuadArray rearGearTeeth = new QuadArray(toothCount * toothFacetVertexCount, GeometryArray.COORDINATES | GeometryArray.NORMALS); for (int count = 0; count < toothCount; count++) { index = count * toothFacetVertexCount; toothStartAngle = gearStartAngle + circularPitchAngle * (double) count; toothTopStartAngle = toothStartAngle + toothTopAngleIncrement; toothDeclineStartAngle = toothStartAngle + toothDeclineAngleIncrement; toothValleyStartAngle = toothStartAngle + toothValleyAngleIncrement; xRoot0 = rootRadius * (float) Math.cos(toothStartAngle); yRoot0 = rootRadius * (float) Math.sin(toothStartAngle); xOuter1 = outsideRadius * (float) Math.cos(toothTopStartAngle); yOuter1 = outsideRadius * (float) Math.sin(toothTopStartAngle); xOuter2 = outsideRadius * (float) Math.cos(toothDeclineStartAngle); yOuter2 = outsideRadius * (float) Math.sin(toothDeclineStartAngle); xRoot3 = rootRadius * (float) Math.cos(toothValleyStartAngle); yRoot3 = rootRadius * (float) Math.sin(toothValleyStartAngle); tempCoordinate1.set(xRoot0, yRoot0, rearZ); tempCoordinate2.set(xRoot3, yRoot3, rearZ); tempVector1.sub(tempCoordinate2, tempCoordinate1); tempCoordinate2.set(xOuter1, yOuter1, toothTipRearZ); tempVector2.sub(tempCoordinate2, tempCoordinate1); rearToothNormal.cross(tempVector2, tempVector1); rearToothNormal.normalize(); coordinate.set(xRoot0, yRoot0, rearZ); rearGearTeeth.setCoordinate(index, coordinate); rearGearTeeth.setNormal(index, rearToothNormal); coordinate.set(xOuter1, yOuter1, toothTipRearZ); rearGearTeeth.setCoordinate(index + 1, coordinate); rearGearTeeth.setNormal(index + 1, rearToothNormal); coordinate.set(xOuter2, yOuter2, toothTipRearZ); rearGearTeeth.setCoordinate(index + 2, coordinate); rearGearTeeth.setNormal(index + 2, rearToothNormal); coordinate.set(xRoot3, yRoot3, rearZ); rearGearTeeth.setCoordinate(index + 3, coordinate); rearGearTeeth.setNormal(index + 3, rearToothNormal); } newShape = new Shape3D(rearGearTeeth, look); this.addChild(newShape); /* * Construct the gear's top teeth faces (As seen from above) Root0 * Outer1 Outer2 Root3 Root4 (RearZ) 0_______3 2_______5 4_______7 * 6_______9 |0 3| |4 7| |8 11| |12 15| | | | | | | | | | | | | | | | | * |1_____2| |5_____6| |9____10| |13___14| 1 2 3 4 5 6 7 8 Root0 Outer1 * Outer2 Root3 Root4 (FrontZ) * * Quad 0123 uses a left normal Quad 2345 uses an out normal Quad 4567 * uses a right normal Quad 6789 uses an out normal */ topVertexCount = 8 * toothCount + 2; topStripCount[0] = topVertexCount; toothFacetVertexCount = 4; toothFacetCount = 4; QuadArray topGearTeeth = new QuadArray(toothCount * toothFacetVertexCount * toothFacetCount, GeometryArray.COORDINATES | GeometryArray.NORMALS); for (int count = 0; count < toothCount; count++) { index = count * toothFacetCount * toothFacetVertexCount; toothStartAngle = gearStartAngle + circularPitchAngle * (double) count; toothTopStartAngle = toothStartAngle + toothTopAngleIncrement; toothDeclineStartAngle = toothStartAngle + toothDeclineAngleIncrement; toothValleyStartAngle = toothStartAngle + toothValleyAngleIncrement; nextToothStartAngle = toothStartAngle + circularPitchAngle; xRoot0 = rootRadius * (float) Math.cos(toothStartAngle); yRoot0 = rootRadius * (float) Math.sin(toothStartAngle); xOuter1 = outsideRadius * (float) Math.cos(toothTopStartAngle); yOuter1 = outsideRadius * (float) Math.sin(toothTopStartAngle); xOuter2 = outsideRadius * (float) Math.cos(toothDeclineStartAngle); yOuter2 = outsideRadius * (float) Math.sin(toothDeclineStartAngle); xRoot3 = rootRadius * (float) Math.cos(toothValleyStartAngle); yRoot3 = rootRadius * (float) Math.sin(toothValleyStartAngle); xRoot4 = rootRadius * (float) Math.cos(nextToothStartAngle); yRoot4 = rootRadius * (float) Math.sin(nextToothStartAngle); // Compute normal for quad 1 tempCoordinate1.set(xRoot0, yRoot0, frontZ); tempCoordinate2.set(xOuter1, yOuter1, toothTipFrontZ); tempVector1.sub(tempCoordinate2, tempCoordinate1); leftNormal.cross(frontNormal, tempVector1); leftNormal.normalize(); // Coordinate labeled 0 in the quad coordinate.set(xRoot0, yRoot0, rearZ); topGearTeeth.setCoordinate(index, coordinate); topGearTeeth.setNormal(index, leftNormal); // Coordinate labeled 1 in the quad coordinate.set(tempCoordinate1); topGearTeeth.setCoordinate(index + 1, coordinate); topGearTeeth.setNormal(index + 1, leftNormal); // Coordinate labeled 2 in the quad topGearTeeth.setCoordinate(index + 2, tempCoordinate2); topGearTeeth.setNormal(index + 2, leftNormal); topGearTeeth.setCoordinate(index + 5, tempCoordinate2); // Coordinate labeled 3 in the quad coordinate.set(xOuter1, yOuter1, toothTipRearZ); topGearTeeth.setCoordinate(index + 3, coordinate); topGearTeeth.setNormal(index + 3, leftNormal); topGearTeeth.setCoordinate(index + 4, coordinate); // Compute normal for quad 2 tempCoordinate1.set(xOuter1, yOuter1, toothTipFrontZ); tempCoordinate2.set(xOuter2, yOuter2, toothTipFrontZ); tempVector1.sub(tempCoordinate2, tempCoordinate1); outNormal.cross(frontNormal, tempVector1); outNormal.normalize(); topGearTeeth.setNormal(index + 4, outNormal); topGearTeeth.setNormal(index + 5, outNormal); // Coordinate labeled 4 in the quad topGearTeeth.setCoordinate(index + 6, tempCoordinate2); topGearTeeth.setNormal(index + 6, outNormal); topGearTeeth.setCoordinate(index + 9, tempCoordinate2); // Coordinate labeled 5 in the quad coordinate.set(xOuter2, yOuter2, toothTipRearZ); topGearTeeth.setCoordinate(index + 7, coordinate); topGearTeeth.setNormal(index + 7, outNormal); topGearTeeth.setCoordinate(index + 8, coordinate); // Compute normal for quad 3 tempCoordinate1.set(xOuter2, yOuter2, toothTipFrontZ); tempCoordinate2.set(xRoot3, yRoot3, frontZ); tempVector1.sub(tempCoordinate2, tempCoordinate1); rightNormal.cross(frontNormal, tempVector1); rightNormal.normalize(); topGearTeeth.setNormal(index + 8, rightNormal); topGearTeeth.setNormal(index + 9, rightNormal); // Coordinate labeled 7 in the quad topGearTeeth.setCoordinate(index + 10, tempCoordinate2); topGearTeeth.setNormal(index + 10, rightNormal); topGearTeeth.setCoordinate(index + 13, tempCoordinate2); // Coordinate labeled 6 in the quad coordinate.set(xRoot3, yRoot3, rearZ); topGearTeeth.setCoordinate(index + 11, coordinate); topGearTeeth.setNormal(index + 11, rightNormal); topGearTeeth.setCoordinate(index + 12, coordinate); // Compute normal for quad 4 tempCoordinate1.set(xRoot3, yRoot3, frontZ); tempCoordinate2.set(xRoot4, yRoot4, frontZ); tempVector1.sub(tempCoordinate2, tempCoordinate1); outNormal.cross(frontNormal, tempVector1); outNormal.normalize(); topGearTeeth.setNormal(index + 12, outNormal); topGearTeeth.setNormal(index + 13, outNormal); // Coordinate labeled 9 in the quad topGearTeeth.setCoordinate(index + 14, tempCoordinate2); topGearTeeth.setNormal(index + 14, outNormal); // Coordinate labeled 8 in the quad coordinate.set(xRoot4, yRoot4, rearZ); topGearTeeth.setCoordinate(index + 15, coordinate); topGearTeeth.setNormal(index + 15, outNormal); // Prepare for the loop by computing the new normal toothTopStartAngle = nextToothStartAngle + toothTopAngleIncrement; xOuter1 = outsideRadius * (float) Math.cos(toothTopStartAngle); yOuter1 = outsideRadius * (float) Math.sin(toothTopStartAngle); tempCoordinate1.set(xRoot4, yRoot4, toothTipFrontZ); tempCoordinate2.set(xOuter1, yOuter1, toothTipFrontZ); tempVector1.sub(tempCoordinate2, tempCoordinate1); leftNormal.cross(frontNormal, tempVector1); leftNormal.normalize(); } newShape = new Shape3D(topGearTeeth, look); this.addChild(newShape); }