Application: gvSIG desktop

/* gvSIG. Desktop Geographic Information System.

 *

 * Copyright ? 2007-2015 gvSIG Association

 *

 * 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.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.fmap.geom.jts.primitive.surface.ellipse;

import java.awt.geom.AffineTransform;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

import org.gvsig.fmap.geom.jts.primitive.point.Point2D;

import org.gvsig.fmap.geom.jts.util.ArrayListCoordinateSequence;

import org.gvsig.fmap.geom.jts.util.JTSUtils;

import org.gvsig.fmap.geom.jts.util.UtilFunctions;

import org.gvsig.fmap.geom.operation.GeometryOperationException;

import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException;

import org.gvsig.fmap.geom.primitive.Ellipse;

import org.gvsig.fmap.geom.primitive.Point;

/**

 * @author fdiaz

 *

 */

public class Ellipse2D extends BaseEllipse2D implements Ellipse {

    /**

     *

     */

    private static final long serialVersionUID = 3414562338763885954L;

    /**

     * @param subtype

     */

    public Ellipse2D() {

        super(Geometry.TYPES.ELLIPSE);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.Geometry#cloneGeometry()

     */

    public Geometry cloneGeometry() {

        Ellipse2D clone = new Ellipse2D();

        clone.setPoints((Point)init.cloneGeometry(), (Point)end.cloneGeometry(), ydist);

        return clone;

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.jts.GeometryJTS#getJTS()

     */

    public com.vividsolutions.jts.geom.Geometry getJTS() {

        ArrayListCoordinateSequence coordinates = getJTSCoordinates();

        return JTSUtils.createJTSPolygon(coordinates);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Ellipse#getRectangleCorner()

     */

    public Point getRectangleCorner() {

        return new Point2D(

            this.getAxis1Start().getX(),

            this.getAxis1Start().getY()-this.getAxis2Dist());

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Ellipse#getRectangleHeight()

     */

    public double getRectangleHeight() {

        return this.getAxis2Dist()*2;

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Ellipse#getRectangleWidth()

     */

    public double getRectangleWidth() throws GeometryOperationNotSupportedException, GeometryOperationException {

        return this.getAxis1Start().distance(this.getAxis1End());

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Ellipse#getRectangleRotation()

     */

    public AffineTransform getRectangleRotation() throws GeometryOperationNotSupportedException, GeometryOperationException {

        return AffineTransform.getRotateInstance(getAxis1Angle(), this.getAxis1Start().getX(), this.getAxis1Start().getY());

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.Geometry#offset(double)

     */

    public Geometry offset(double distance) throws GeometryOperationNotSupportedException, GeometryOperationException {

        Ellipse clonedEllipse = (Ellipse) this.cloneGeometry();

        GeometryManager geomManager = GeometryLocator.getGeometryManager();

        Point center = new Point2D((getAxis1Start().getX()+getAxis1End().getX())/2,

            (getAxis1Start().getY()+getAxis1End().getY())/2);

        double axis1Lenght = getAxis1Start().distance(getAxis1End());

        Point clonedAxis1Start = (Point) getAxis1Start().cloneGeometry();

        Point clonedAxis1End = (Point) getAxis1End().cloneGeometry();

        double clonedYDist = this.ydist+distance;

        clonedAxis1Start.setX(JTSUtils.straightLineThroughTwoPointsEquation(0, axis1Lenght/2, center.getX(), getAxis1Start().getX(), axis1Lenght/2+distance));

        clonedAxis1Start.setY(JTSUtils.straightLineThroughTwoPointsEquation(0, axis1Lenght/2, center.getY(), getAxis1Start().getY(), axis1Lenght/2+distance));

        clonedAxis1End.setX(JTSUtils.straightLineThroughTwoPointsEquation(0, axis1Lenght/2, center.getX(), getAxis1End().getX(), axis1Lenght/2+distance));

        clonedAxis1End.setY(JTSUtils.straightLineThroughTwoPointsEquation(0, axis1Lenght/2, center.getY(), getAxis1End().getY(), axis1Lenght/2+distance));

        clonedEllipse.setPoints(clonedAxis1Start, clonedAxis1End, clonedYDist);

        return clonedEllipse;

    }

}