Android Open Source - Resonos-Android-Framework Coord

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License

The source code is released under:

Apache License

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Java Source Code

package com.resonos.apps.library.model;
// w  ww. j a v a2  s  . com
import android.util.FloatMath;

/**
 * A simple Point class that gives write access to the ImmutableCoord class.
 * So simply cast any Coord object to an ImmutableCoord object to put in read-only mode.
 * @author Chris Newhouse
 * @see com.resonos.apps.library.model.ImmutableCoord
 */
public class Coord extends ImmutableCoord {
  
  public Coord() {
    super();
  }
  
  public Coord(float x, float y) {
    super(x, y);
  }
  
  public Coord(ImmutableCoord c) {
    super(c);
  }

  public Coord set(float x, float y) {
    this.x = x;
    this.y = y;
    return this;
  }
  
  public Coord set(ImmutableCoord c) {
    this.x = c.x;
    this.y = c.y;
    return this;
  }

  public Coord add(ImmutableCoord c) {
    this.x += c.x;
    this.y += c.y;
    return this;
  }

  public Coord sub(ImmutableCoord c) {
    this.x -= c.x;
    this.y -= c.y;
    return this;
  }

  public Coord mult(float f) {
    this.x *= f;
    this.y *= f;
    return this;
  }

  public Coord add(float f, float g) {
    this.x += f;
    this.y += g;
    return this;
  }

  public Coord sub(float f, float g) {
    this.x -= f;
    this.y -= g;
    return this;
  }
        
    /**
     * Rotates this point around another point.
     * @param origin : the coordinate to rotate around
     * @param t : the angle in radians to rotate
     * @return The same Coord, available for chaining.
     */
    public Coord rotateAround(ImmutableCoord origin, float t) {
        // Rotates a point angle t around another point.
        float ax = this.x - origin.x;
        float ay = this.y - origin.y;
        float nx = ax * FloatMath.cos(t) - ay * FloatMath.sin(t);
        float ny = ax * FloatMath.sin(t) + ay * FloatMath.cos(t);
        return set(nx + origin.x, ny + origin.y);
    }
}

Java Source Code List