Point3d.java

/*-
 *  Copyright 2020 Beuth Hochschule für Technik Berlin, Hochschule für Technik Stuttgart
 * 
 *  This file is part of CityDoctor2.
 *
 *  CityDoctor2 is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  CityDoctor2 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 Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with CityDoctor2.  If not, see <https://www.gnu.org/licenses/>.
 */
package de.hft.stuttgart.citydoctor2.edge;

public class Point3d {

	private double x;
	private double y;
	private double z;

	public Point3d(double x, double y, double z) {
		this.x = x;
		this.y = y;
		this.z = z;
	}

	public Point3d(double[] values) {
		this(values[0], values[1], values[2]);
	}

	public Point3d(Point3d p) {
		this(p.getX(), p.getY(), p.getZ());
	}

	public boolean isAlmostEqual(Point3d origin, double eps) {
		Vector3d vec = minus(origin);
		double localEps = eps * eps;
		if (localEps < Global.getHighAccuracyTolerance()) {
			localEps = Global.getHighAccuracyTolerance();
		}
		
		return vec.getLength2() < localEps;
	}

	public Vector3d minus(Point3d org) {
		return new Vector3d(x - org.getX(), y - org.getY(), z - org.getZ());
	}

	public Point3d plus(Vector3d v) {
		return new Point3d(x + v.getX(), y + v.getY(), z + v.getZ());
	}

	public double getX() {
		return x;
	}

	public double getY() {
		return y;
	}

	public double getZ() {
		return z;
	}

	public Point3d plus(Point3d point) {
		return new Point3d(x + point.getX(), y + point.getY(), z + point.getZ());
	}

	public Point3d div(double d) {
		return new Point3d(x / d, y /d, z / d);
	}

	@Override
	public String toString() {
		return "Point3d [x=" + x + ", y=" + y + ", z=" + z + "]";
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		long temp;
		temp = Double.doubleToLongBits(x);
		result = prime * result + (int) (temp ^ (temp >>> 32));
		temp = Double.doubleToLongBits(y);
		result = prime * result + (int) (temp ^ (temp >>> 32));
		temp = Double.doubleToLongBits(z);
		result = prime * result + (int) (temp ^ (temp >>> 32));
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Point3d other = (Point3d) obj;
		if (Double.doubleToLongBits(x) != Double.doubleToLongBits(other.x))
			return false;
		if (Double.doubleToLongBits(y) != Double.doubleToLongBits(other.y))
			return false;
		if (Double.doubleToLongBits(z) != Double.doubleToLongBits(other.z))
			return false;
		return true;
	}

}