Java Matrix Transform transformPoint3D(float matrix4x4[], float point3D[], float result3D[])

Description

Transform the given 3D point with the given 4x4 matrix (thus, treating the non-present fourth component of the point as being 1.0), and write the result into the given result array.

License

Open Source License

Parameter

Parameter	Description
matrix4x4	The matrix
point3D	The input point
result3D	The result point

Declaration

static void transformPoint3D(float matrix4x4[], float point3D[], float result3D[])

Method Source Code


//package com.java2s;
/*/* w w  w .j  a v  a2s  .  c  om*/
 * www.javagl.de - JglTF
 *
 * Copyright 2015-2016 Marco Hutter - http://www.javagl.de
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

import java.util.Arrays;

public class Main {
    /**
     * Transform the given 3D point with the given 4x4 matrix (thus, 
     * treating the non-present fourth component of the point as 
     * being 1.0), and write the result into the given result array.
     * 
     * @param matrix4x4 The matrix
     * @param point3D The input point
     * @param result3D The result point
     */
    static void transformPoint3D(float matrix4x4[], float point3D[], float result3D[]) {
        Arrays.fill(result3D, 0.0f);
        for (int r = 0; r < 3; r++) {
            for (int c = 0; c < 3; c++) {
                int index = c * 4 + r;
                float m = matrix4x4[index];
                result3D[r] += m * point3D[c];
            }
            int index = 3 * 4 + r;
            float m = matrix4x4[index];
            result3D[r] += m;
        }
    }
}

transformMutiParamTableToList(String[] mutiParamTable)