Vector.java

/*******************************************************************************
 * Copyright 2010 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.math;



/**
 * @author <a href="mailto:simon.mieth@gmx.de>Simon Mieth</a>
 *
 */
public class Vector extends Point3D {
    public Vector() {
        super();
    }

    public Vector(Point3D p) {
        super(p.getX(), p.getY(), p.getZ());
    }

    public Vector(double x, double y, double z) {
        super(x, y, z);
    }

    public double getLength() {
        return Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2) + Math.pow(z, 2));
    }

    public void normalize() {
        double r = Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2) + Math.pow(z, 2));
        x = x / r;
        y = y / r;
        z = z / r;
    }
}