org.bimserver.utils.Cube Maven / Gradle / Ivy

package org.bimserver.utils;

/******************************************************************************
 * Copyright (C) 2009-2017  BIMserver.org
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see {@literal}.
 *****************************************************************************/

import java.util.ArrayList;
import java.util.List;

import org.bimserver.geometry.Matrix;

public class Cube {
	
	private List coords = new ArrayList<>();
	
	public Cube(double[] min, double[] max) {
		coords.add(new Coord(min[0], min[1], min[2])); // min
		coords.add(new Coord(max[0], min[1], min[2])); // front
		coords.add(new Coord(max[0], max[1], min[2])); // front
		coords.add(new Coord(min[0], max[1], min[2])); // front

		coords.add(new Coord(max[0], max[1], max[2])); // max
		coords.add(new Coord(min[0], max[1], max[2])); // max
		coords.add(new Coord(min[0], min[1], max[2])); // max
		coords.add(new Coord(max[0], min[1], max[2])); // max
	}

	public Cube() {
	}

	public void transform(double[] matrix) {
		for (Coord coord : coords) {
			double[] result = new double[4];
			Matrix.multiplyMV(result, 0, matrix, 0, coord.asVector(), 0);
			coord.setVector(result);
		}
	}

	public double[] getMin() {
		Coord min = new Coord(Double.MAX_VALUE);
		for (Coord coord : coords) {
			for (int i=0; i<3; i++) {
				if (coord.get(i) < min.get(i)) {
					min.set(i, coord.get(i));
				}
			}
		}
		return min.asVector();
	}

	public double[] getMax() {
		Coord max = new Coord(-Double.MAX_VALUE);
		for (Coord coord : coords) {
			for (int i=0; i<3; i++) {
				if (coord.get(i) > max.get(i)) {
					max.set(i, coord.get(i));
				}
			}
		}
		return max.asVector();
	}

	public void add(Coord coord) {
		coords.add(coord);
	}
}