Android Open Source - Look Point3

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License

The source code is released under:

====================== LOOK! LICENSING TERMS ====================== look! is licensed under the BSD 3-Clause (also known as "BSD New" or "BSD Simplified"), as follows: Copyright (c) 2010-2012, Look...

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Java Source Code

/**
*-----------------------------------------------------------------------------
* Copyright (c) 2012, Look! Development Team
* All rights reserved./*  ww w .j a  v  a  2s  .c  o  m*/
*
* Distributed under the terms of the BSD Simplified License.
*
* The full license is in the LICENSE file, distributed with this software.
*-----------------------------------------------------------------------------
*/
package es.ucm.look.ar.math.geom;

/**
 * Represents a 3D point
 * 
 * @author ??ngel Serrano
 * 
 */
public class Point3 extends Point2 {

  /**
   * z coordinate
   */
  public float z;

  /**
   * Constructs a 3D point
   * 
   * @param x
   *            x coordinate
   * @param y
   *            y coordinate
   * @param z
   *            z coordinate
   */
  public Point3(float x, float y, float z) {
    super(x, y);
    this.z = z;
  }

  public Point3(Point3 p) {
    this( p.x, p.y, p.z );
  }

  /**
   * Sets point coordinates
   * 
   * @param x
   *            x coordinate
   * @param y
   *            y coordinate
   * @param z
   *            z coordinate
   */
  public void set(float x, float y, float z) {
    this.x = x;
    this.y = y;
    this.z = z;
  }

  /**
   * Adds given coordinates to 3D point coordinates
   * 
   * @param x
   *            x coordinate
   * @param y
   *            y coordinate
   * @param z
   *            z coordinate
   */
  public void add(float x, float y, float z) {
    set(this.x + x, this.y + y, this.z + z);
  }

  /**
   * Adds the point's coordinates
   * 
   * @param p
   *            the point
   */
  public void add(Point3 p) {
    add(p.x, p.y, p.z);
  }

  public float[] getCoordinatesArray() {
    return new float[] { x, y, z };
  }

  public String toString() {
    return "[" + x + ", " + y + ", " + z + "]";
  }

  private static Point3 p = new Point3(0, 0, 0);

  public static Point3 getVolatilePoint(float x, float y, float z) {
    p.x = x;
    p.y = y;
    p.z = z;
    return p;
  }

  /**
   * Subtracts the point's coordinates
   * 
   * @param p
   *            the point
   */
  public void subtract(Point3 p) {
    set(this.x - p.x, this.y - p.y, this.z - p.z);
  }

  /**
   * Returns a three dimension array with the coordinates
   * 
   * @return
   */
  public float[] array() {
    return new float[] { x, y, z };
  }

  public void set(float[] floatArray) {
    if (floatArray != null && floatArray.length == 3) {
      x = floatArray[0];
      y = floatArray[1];
      z = floatArray[2];
    }

  }

  /**
   * Scales the point, dividing the current coordinates with the given scale
   * 
   * @param scale
   *            the scale
   */
  public void inverseScale(Point3 scale) {
    x /= scale.x;
    y /= scale.y;
    z /= scale.z;
  }

  /**
   * Scales the point, multiplying the current coordinates with the given
   * scale
   * 
   * @param scale
   *            the scale
   */
  public void scale(Point3 scale) {
    x *= scale.x;
    y *= scale.y;
    z *= scale.z;
  }
  
  /**
   * Copies the coordinates of the given point
   * 
   * @param p
   *            the point
   */
  public void set(Point3 p) {
    x = p.x;
    y = p.y;
    z = p.z;
  }
}

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