Android Open Source - Look Point2

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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...

Java Source Code

/**
*-----------------------------------------------------------------------------
* Copyright (c) 2012, Look! Development Team
* All rights reserved./*from  w w w  .  j a va  2  s .  c om*/
*
* 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 2D point
 * 
 * @author ??ngel Serrano
 * 
 */
public class Point2 {

  /**
   * x coordinate
   */
  public float x;

  /**
   * y coordinate
   */
  public float y;

  /**
   * Constructs a point from its 2D coordinates
   * 
   * @param x
   *            x coordinate
   * @param y
   *            y coordinate
   */
  public Point2(float x, float y) {
    this.x = x;
    this.y = y;
  }

  /**
   * Constructs a 2D point from a 3D point, giving one coordinate to be
   * removed from the 3D point
   * 
   * @param p
   *            3D point
   * @param remove
   *            coordinate index to be removed. If 0, x will be removed,
   *            assigning 2D x to 3D y and 2D y to 3D z. If 1, y will be
   *            removed, and so on... If <em>remove</em> if greater than 2 or
   *            less than 0, the z coordinate will be removed
   */
  public Point2(Point3 p, int remove) {
    switch (remove) {
    case 0:
      x = p.y;
      y = p.z;
      break;
    case 1:
      x = p.x;
      y = p.z;
      break;
    default:
      x = p.x;
      y = p.y;
    }
  }

  /**
   * Adds given x and y to point x and way
   * 
   * @param x
   * @param y
   */
  public void add(float x, float y) {
    this.x += x;
    this.y += y;
  }

  /**
   * Adds a point to this one, adding given point x and y coordinates to this
   * x and y point
   * 
   * @param p
   *            the point
   */
  public void add(Point2 p) {
    this.add(p.x, p.y);
  }

  /**
   * Returns an array with the point's coordinates
   * 
   * @return an array with the point's coordinates
   */
  public float[] getCoordinatesArray() {
    return new float[] { x, y };
  }

}

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