/*
* Copyright (C) 2014 Alfons Wirtz
* website www.freerouting.net
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License at <http://www.gnu.org/licenses/>
* for more details.
*
* Ellipse.java
*
* Created on 27. Mai 2005, 07:17
*
*/
package geometry.planar;
/**
* Describes functionality of an elllipse in the plane.
* Does not implement the ConvexShape interface, because coordinates are float.
*
* @author Alfons Wirtz
*/
public class Ellipse implements java.io.Serializable
{
/** Creates a new instance of Ellipse */
public Ellipse(FloatPoint p_center, double p_rotation, double p_radius_1, double p_radius_2)
{
this.center = p_center;
double curr_rotation;
if (p_radius_1 >= p_radius_2)
{
this.bigger_radius = p_radius_1;
this.smaller_radius = p_radius_2;
curr_rotation = p_rotation;
}
else
{
this.bigger_radius = p_radius_2;
this.smaller_radius = p_radius_1;
curr_rotation = p_rotation + 0.5 * Math.PI;
}
while (curr_rotation >= Math.PI)
{
curr_rotation -= Math.PI;
}
while (curr_rotation < 0)
{
curr_rotation += Math.PI;
}
this.rotation = curr_rotation;
}
public final FloatPoint center;
/** Rotation of the ellipse in radian normed to 0 <= rotation < pi */
public final double rotation;
public final double bigger_radius;
public final double smaller_radius;
}