/*
* $Id$
* This file is a part of the Arakhne Foundation Classes, http://www.arakhne.org/afc
*
* Copyright (c) 2000-2012 Stephane GALLAND.
* Copyright (c) 2005-10, Multiagent Team, Laboratoire Systemes et Transports,
* Universite de Technologie de Belfort-Montbeliard.
* Copyright (c) 2013-2016 The original authors, and other authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.arakhne.afc.math.geometry.d2.d;
import org.eclipse.xtext.xbase.lib.Pure;
import org.arakhne.afc.math.geometry.d2.Point2D;
import org.arakhne.afc.math.geometry.d2.afp.Circle2afp;
import org.arakhne.afc.vmutil.asserts.AssertMessages;
/** A circle with 2 double precision floating-point numbers.
*
* @author $Author: sgalland$
* @author $Author: hjaffali$
* @version $FullVersion$
* @mavengroupid $GroupId$
* @mavenartifactid $ArtifactId$
* @since 13.0
*/
public class Circle2d
extends AbstractShape2d<Circle2d>
implements Circle2afp<Shape2d<?>, Circle2d, PathElement2d, Point2d, Vector2d, Rectangle2d> {
private static final long serialVersionUID = -8532584773530573738L;
private double centerX;
private double centerY;
private double radius;
/** Construct an empty circle.
*/
public Circle2d() {
//
}
/** Construct a circle at the given position, and with the given radius.
* @param center the center of the circle.
* @param radius the radius of the circle.
*/
public Circle2d(Point2D<?, ?> center, double radius) {
set(center.getX(), center.getY(), radius);
}
/** Construct a circle at the given position, and with the given radius.
* @param x x coordinate of the center of the circle.
* @param y y coordinate of the center of the circle.
* @param radius the radius of the circle.
*/
public Circle2d(double x, double y, double radius) {
set(x, y, radius);
}
/** Construct a circle from a circle.
* @param circle the circle to copy.
*/
public Circle2d(Circle2afp<?, ?, ?, ?, ?, ?> circle) {
assert circle != null : AssertMessages.notNullParameter();
set(circle.getX(), circle.getY(), circle.getRadius());
}
@Pure
@Override
public int hashCode() {
int bits = 1;
bits = 31 * bits + Double.hashCode(this.centerX);
bits = 31 * bits + Double.hashCode(this.centerY);
bits = 31 * bits + Double.hashCode(this.radius);
return bits ^ (bits >> 31);
}
@Pure
@Override
public double getX() {
return this.centerX;
}
@Pure
@Override
public double getY() {
return this.centerY;
}
@Override
public void setX(double x) {
if (this.centerX != x) {
this.centerX = x;
fireGeometryChange();
}
}
@Override
public void setY(double y) {
if (this.centerY != y) {
this.centerY = y;
fireGeometryChange();
}
}
@Pure
@Override
public double getRadius() {
return this.radius;
}
@Override
public void setRadius(double radius) {
if (this.radius != radius) {
this.radius = radius;
fireGeometryChange();
}
}
@Override
public void set(double x, double y, double radius) {
assert radius >= 0. : AssertMessages.positiveOrZeroParameter(2);
if (this.centerX != x || this.centerY != y || this.radius != radius) {
this.centerX = x;
this.centerY = y;
this.radius = radius;
fireGeometryChange();
}
}
}