/*
Copyright 2005 Simon Mieth
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.kabeja.dxf;
import org.kabeja.dxf.helpers.Point;
import org.kabeja.math.ParametricPlane;
/**
* @author <a href="mailto:simon.mieth@gmx.de>Simon Mieth</a>
*
*/
public class DXFCircle extends DXFEntity {
private Point center;
private double radius;
/**
*
*/
public DXFCircle() {
}
public double getRadius() {
return radius;
}
/**
* @param radius
* The radius to set.
*/
public void setRadius(double radius) {
this.radius = radius;
}
public void setCenterPoint(Point p) {
this.center = p;
}
public Point getCenterPoint() {
return center;
}
public Bounds getBounds() {
Bounds bounds = new Bounds();
ParametricPlane plane = new ParametricPlane(this.getExtrusion());
Point p = plane.getPoint(this.center.getX(), this.center.getY());
bounds.setMaximumX(p.getX() + radius);
bounds.setMinimumX(p.getX() - radius);
bounds.setMaximumY(p.getY() + radius);
bounds.setMinimumY(p.getY() - radius);
return bounds;
}
public String getType() {
return DXFConstants.ENTITY_TYPE_CIRCLE;
}
public double getLength() {
return 2 * Math.PI * this.radius;
}
public Point getPointAt(double angle) {
// the local part
double x = this.radius * Math.cos(Math.toRadians(angle));
double y = radius * Math.sin(Math.toRadians(angle));
// the wcs part
ParametricPlane plane = new ParametricPlane(this.getExtrusion());
Point p = plane.getPoint(x + this.center.getX(), y +
this.center.getY());
return p;
}
}