at.uni_salzburg.cs.ckgroup.cscpp.mapper.CircleZone.java Source code

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Here is the source code for at.uni_salzburg.cs.ckgroup.cscpp.mapper.CircleZone.java

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/*
 * @(#) CircleZone.java
 *
 * This code is part of the CPCC project.
 * Copyright (c) 2012  Clemens Krainer
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */
package at.uni_salzburg.cs.ckgroup.cscpp.mapper;

import org.json.simple.JSONObject;

import at.uni_salzburg.cs.ckgroup.course.CartesianCoordinate;
import at.uni_salzburg.cs.ckgroup.course.IGeodeticSystem;
import at.uni_salzburg.cs.ckgroup.course.PolarCoordinate;

public class CircleZone extends AbstractZone {

    private PolarCoordinate center;
    private CartesianCoordinate centerCart;
    private double radius;
    private IGeodeticSystem geodeticSystem;

    public CircleZone(PolarCoordinate center, double radius, IGeodeticSystem geodeticSystem) {
        this.center = new PolarCoordinate(center);
        this.center.setAltitude(0);
        this.radius = radius;
        this.geodeticSystem = geodeticSystem;
        setDepotPosition(getCenterOfGravity());
        centerCart = geodeticSystem.polarToRectangularCoordinates(center);
    }

    @Override
    public boolean isInside(PolarCoordinate position) {
        if (position == null) {
            return false;
        }
        PolarCoordinate p = new PolarCoordinate(position);
        p.setAltitude(0);
        CartesianCoordinate pCart = geodeticSystem.polarToRectangularCoordinates(p);
        double distance = centerCart.subtract(pCart).norm();
        return distance <= radius;
    }

    public PolarCoordinate getCenterOfGravity() {
        return new PolarCoordinate(center);
    }

    @SuppressWarnings("unchecked")
    @Override
    public String toJSONString() {
        JSONObject o = new JSONObject();
        o.put("type", "circle");
        o.put("radius", new Double(radius));

        JSONObject c = new JSONObject();
        c.put("lat", new Double(center.getLatitude()));
        c.put("lon", new Double(center.getLongitude()));
        o.put("center", c);

        JSONObject d = new JSONObject();
        d.put("lat", new Double(getDepotPosition().getLatitude()));
        d.put("lon", new Double(getDepotPosition().getLongitude()));
        o.put("depot", c);

        return o.toJSONString();
    }

}