Example usage for javax.media.j3d IndexedQuadArray setCoordinateIndices

Introduction

In this page you can find the example usage for javax.media.j3d IndexedQuadArray setCoordinateIndices.

Prototype

public void setCoordinateIndices(int index, int coordinateIndices[]) 

Source Link

Document

Sets the coordinate indices associated with the vertices starting at the specified index for this object.

Usage

From source file:ExSound.java

private Shape3D buildBox(float width, float height, float depth, Appearance app) {
    float w2 = width / 2.0f;
    float h2 = height / 2.0f;
    float d2 = depth / 2.0f;

    float[] coordinates = new float[8 * 3];
    int n = 0;/*from  ww  w .  j  a  v  a2 s  .  c o  m*/
    // Around the bottom of the box
    coordinates[n + 0] = -w2;
    coordinates[n + 1] = -h2;
    coordinates[n + 2] = d2;
    n += 3;
    coordinates[n + 0] = w2;
    coordinates[n + 1] = -h2;
    coordinates[n + 2] = d2;
    n += 3;
    coordinates[n + 0] = w2;
    coordinates[n + 1] = -h2;
    coordinates[n + 2] = -d2;
    n += 3;
    coordinates[n + 0] = -w2;
    coordinates[n + 1] = -h2;
    coordinates[n + 2] = -d2;
    n += 3;

    // Around the top of the box
    coordinates[n + 0] = -w2;
    coordinates[n + 1] = h2;
    coordinates[n + 2] = d2;
    n += 3;
    coordinates[n + 0] = w2;
    coordinates[n + 1] = h2;
    coordinates[n + 2] = d2;
    n += 3;
    coordinates[n + 0] = w2;
    coordinates[n + 1] = h2;
    coordinates[n + 2] = -d2;
    n += 3;
    coordinates[n + 0] = -w2;
    coordinates[n + 1] = h2;
    coordinates[n + 2] = -d2;
    n += 3;

    IndexedQuadArray quads = new IndexedQuadArray(coordinates.length, // vertex
            // count
            GeometryArray.COORDINATES | GeometryArray.NORMALS | GeometryArray.TEXTURE_COORDINATE_2,
            coordinateIndices.length);
    quads.setCoordinates(0, coordinates);
    quads.setCoordinateIndices(0, coordinateIndices);
    quads.setNormals(0, normals);
    quads.setNormalIndices(0, normalIndices);
    quads.setTextureCoordinates(0, textureCoordinates);
    quads.setTextureCoordinateIndices(0, textureCoordinateIndices);

    Shape3D shape = new Shape3D(quads, app);
    return shape;
}

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From source file:ExLinearFog.java

private void addCylinder(float radius, float height, float y) {
    ////from  w ww. j  a v  a  2s  .  co  m
    //  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);
}

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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
    };/* ww  w . j a  v  a 2 s .c  o  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);
}

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From source file:ExBackgroundImage.java

public Arch(double startPhi, double endPhi, int nPhi, double startTheta, double endTheta, int nTheta,
        double startPhiRadius, double endPhiRadius, double startPhiThickness, double endPhiThickness,
        Appearance app) {/*from   www  .j ava  2  s.co m*/
    double theta, phi, radius, radius2, thickness;
    double x, y, z;
    double[] xyz = new double[3];
    float[] norm = new float[3];
    float[] tex = new float[3];

    // Compute some values for our looping
    double deltaTheta = (endTheta - startTheta) / (double) (nTheta - 1);
    double deltaPhi = (endPhi - startPhi) / (double) (nPhi - 1);
    double deltaTexX = 1.0 / (double) (nTheta - 1);
    double deltaTexY = 1.0 / (double) (nPhi - 1);
    double deltaPhiRadius = (endPhiRadius - startPhiRadius) / (double) (nPhi - 1);
    double deltaPhiThickness = (endPhiThickness - startPhiThickness) / (double) (nPhi - 1);

    boolean doThickness = true;
    if (startPhiThickness == 0.0 && endPhiThickness == 0.0)
        doThickness = false;

    //  Create geometry
    int vertexCount = nTheta * nPhi;
    if (doThickness)
        vertexCount *= 2;
    int indexCount = (nTheta - 1) * (nPhi - 1) * 4; // Outer surface
    if (doThickness) {
        indexCount *= 2; // plus inner surface
        indexCount += (nPhi - 1) * 4 * 2; // plus left & right edges
    }

    IndexedQuadArray polys = new IndexedQuadArray(vertexCount,
            GeometryArray.COORDINATES | GeometryArray.NORMALS | GeometryArray.TEXTURE_COORDINATE_2, indexCount);

    //
    //  Compute coordinates, normals, and texture coordinates
    //
    theta = startTheta;
    tex[0] = 0.0f;
    int index = 0;
    for (int i = 0; i < nTheta; i++) {
        phi = startPhi;
        radius = startPhiRadius;
        thickness = startPhiThickness;
        tex[1] = 0.0f;

        for (int j = 0; j < nPhi; j++) {
            norm[0] = (float) (Math.cos(phi) * Math.cos(theta));
            norm[1] = (float) (Math.sin(phi));
            norm[2] = (float) (-Math.cos(phi) * Math.sin(theta));
            xyz[0] = radius * norm[0];
            xyz[1] = radius * norm[1];
            xyz[2] = radius * norm[2];
            polys.setCoordinate(index, xyz);
            polys.setNormal(index, norm);
            polys.setTextureCoordinate(index, tex);
            index++;

            if (doThickness) {
                radius2 = radius - thickness;
                xyz[0] = radius2 * norm[0];
                xyz[1] = radius2 * norm[1];
                xyz[2] = radius2 * norm[2];
                norm[0] *= -1.0f;
                norm[1] *= -1.0f;
                norm[2] *= -1.0f;
                polys.setCoordinate(index, xyz);
                polys.setNormal(index, norm);
                polys.setTextureCoordinate(index, tex);
                index++;
            }

            phi += deltaPhi;
            radius += deltaPhiRadius;
            thickness += deltaPhiThickness;
            tex[1] += deltaTexY;
        }
        theta += deltaTheta;
        tex[0] += deltaTexX;
    }

    //
    //  Compute coordinate indexes
    //  (also used as normal and texture indexes)
    //
    index = 0;
    int phiRow = nPhi;
    int phiCol = 1;
    if (doThickness) {
        phiRow += nPhi;
        phiCol += 1;
    }
    int[] indices = new int[indexCount];

    // Outer surface
    int n;
    for (int i = 0; i < nTheta - 1; i++) {
        for (int j = 0; j < nPhi - 1; j++) {
            n = i * phiRow + j * phiCol;
            indices[index + 0] = n;
            indices[index + 1] = n + phiRow;
            indices[index + 2] = n + phiRow + phiCol;
            indices[index + 3] = n + phiCol;
            index += 4;
        }
    }

    // Inner surface
    if (doThickness) {
        for (int i = 0; i < nTheta - 1; i++) {
            for (int j = 0; j < nPhi - 1; j++) {
                n = i * phiRow + j * phiCol;
                indices[index + 0] = n + 1;
                indices[index + 1] = n + phiCol + 1;
                indices[index + 2] = n + phiRow + phiCol + 1;
                indices[index + 3] = n + phiRow + 1;
                index += 4;
            }
        }
    }

    // Edges
    if (doThickness) {
        for (int j = 0; j < nPhi - 1; j++) {
            n = j * phiCol;
            indices[index + 0] = n;
            indices[index + 1] = n + phiCol;
            indices[index + 2] = n + phiCol + 1;
            indices[index + 3] = n + 1;
            index += 4;
        }
        for (int j = 0; j < nPhi - 1; j++) {
            n = (nTheta - 1) * phiRow + j * phiCol;
            indices[index + 0] = n;
            indices[index + 1] = n + 1;
            indices[index + 2] = n + phiCol + 1;
            indices[index + 3] = n + phiCol;
            index += 4;
        }
    }

    polys.setCoordinateIndices(0, indices);
    polys.setNormalIndices(0, indices);
    polys.setTextureCoordinateIndices(0, indices);

    //
    //  Build a shape
    //
    arch = new Shape3D();
    arch.setCapability(Shape3D.ALLOW_APPEARANCE_WRITE);
    arch.setGeometry(polys);
    arch.setAppearance(app);
    addChild(arch);
}

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