DrawObject.java

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package edu.tum.cs.vis.model.util;

import javax.vecmath.Point3f;

public abstract class DrawObject {
        public Point3f position[];

        public void translate(float x, float y, float z) {
                for (int v = 0; v < position.length; v++) {
                        position[v].x += x;
                        position[v].y += y;
                        position[v].z += z;
                }
        }

        public void scale(float factor) {
                for (int v = 0; v < position.length; v++) {
                        position[v].x *= factor;
                        position[v].y *= factor;
                        position[v].z *= factor;
                }
        }

        public void transform(float[][] matrix) {
                for (int v = 0; v < position.length; v++) {
                        float[] newPos = new float[4];
                        for (int row = 0; row < 4; row++) {
                                newPos[row] = position[v].x * matrix[row][0] + position[v].y
                                                * matrix[row][1] + position[v].z * matrix[row][2]
                                                + matrix[row][3];
                        }
                        position[v].x = newPos[0] / newPos[3];
                        position[v].y = newPos[1] / newPos[3];
                        position[v].z = newPos[2] / newPos[3];
                }
        }

        public static float[][] MatrixMultiply(float mat1[][], float mat2[][])
        {
                int x = mat1.length;
                int y = mat2.length;
                float result[][] = new float[x][y];

                for (int i = 0; i < x; i++) {
                        for (int j = 0; j < y - 1; j++) {
                                for (int k = 0; k < y; k++) {

                                        result[i][j] += mat1[i][k] * mat2[k][j];
                                }
                        }
                }
                
                return result;
        }
}

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mod_vis
Author(s): Moritz Tenorth, Jakob Engel
autogenerated on Fri Jan 11 09:54:14 2013