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.circle;

import java.awt.geom.PathIterator;

import com.vividsolutions.jts.geom.Coordinate;

import java.awt.Shape;

import java.awt.geom.AffineTransform;

import java.awt.geom.Ellipse2D;

import org.gvsig.fmap.geom.GeometryException;

import org.gvsig.fmap.geom.aggregate.MultiLine;

import org.gvsig.fmap.geom.aggregate.MultiPoint;

import org.gvsig.fmap.geom.aggregate.MultiPolygon;

import org.gvsig.fmap.geom.jts.aggregate.MultiLine2D;

import org.gvsig.fmap.geom.jts.aggregate.MultiPoint2D;

import org.gvsig.fmap.geom.jts.aggregate.MultiPolygon2D;

import org.gvsig.fmap.geom.jts.primitive.curve.line.Line2D;

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

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

import org.gvsig.fmap.geom.jts.primitive.surface.polygon.Polygon2D;

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

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

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

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

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

/**

 * @author fdiaz

 *

 */

public abstract class BaseCircle2D extends AbstractCircle {

    /**

     *

     */

    private static final long serialVersionUID = -6981603729327501715L;

    /**

     * @param type

     * @param subtype

     * @param center

     * @param radius

     */

    public BaseCircle2D(int type, int subtype, Point center, double radius) {

        super(type, subtype, center, radius);

    }

    /**

     * @param circle

     * @param geom2d

     */

    public BaseCircle2D(int type, int subtype) {

        super(type,subtype);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Circle#setPoints(org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point)

     */

    public void setPoints(Point p1, Point p2, Point p3) {

      this.center = new Point2D(JTSUtils.getCircumcentre(p1, p2, p3));

      this.radius = ((PointJTS)this.center).getJTS().distance(((PointJTS)p1).getJTS());

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.jts.primitive.surface.circle.AbstractCircle#fixPoint(org.gvsig.fmap.geom.primitive.Point)

     */

    @Override

    protected Point fixPoint(Point point) {

        if (point instanceof Point2D) {

            return point;

        } else {

            return new Point2D(point.getX(), point.getY());

        }

    }

    /**

     * @return

     */

    protected ArrayListCoordinateSequence getJTSCoordinates() {

        PathIterator pi = getPathIterator(null);

        ArrayListCoordinateSequence coordinates = new ArrayListCoordinateSequence();

        double coords[] = new double[6];

        while (!pi.isDone()) {

            switch (pi.currentSegment(coords)) {

            case PathIterator.SEG_MOVETO:

                coordinates.add(new Coordinate(coords[0], coords[1]));

                break;

            case PathIterator.SEG_LINETO:

                coordinates.add(new Coordinate(coords[0], coords[1]));

                break;

            case PathIterator.SEG_QUADTO:

                coordinates.add(new Coordinate(coords[0], coords[1]));

                coordinates.add(new Coordinate(coords[2], coords[3]));

                break;

            case PathIterator.SEG_CUBICTO:

                coordinates.add(new Coordinate(coords[0], coords[1]));

                coordinates.add(new Coordinate(coords[2], coords[3]));

                coordinates.add(new Coordinate(coords[4], coords[5]));

                break;

            case PathIterator.SEG_CLOSE:

                coordinates.add(coordinates.get(0));

                break;

            }

            pi.next();

        }

        if(!coordinates.get(0).equals(coordinates.get(coordinates.size()-1))){

            coordinates.add((Coordinate)coordinates.get(0).clone());

        }

        return coordinates;

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Line#toPoints()

     */

    public MultiPoint toPoints() throws GeometryException {

        MultiPoint multiPoint = new MultiPoint2D();

        Coordinate[] coordinates = getJTS().getCoordinates();

        multiPoint.ensureCapacity(coordinates.length);

        for (int i = 0; i < coordinates.length; i++) {

            multiPoint.addPoint(new Point2D(coordinates[i]));

        }

        return multiPoint;

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Line#toLines()

     */

    public MultiLine toLines() throws GeometryException {

        MultiLine multiLine = new MultiLine2D();

        Line line = new Line2D(getJTS().getCoordinates());

        multiLine.addPrimitive(line);

        return multiLine;

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Line#toPolygons()

     */

    public MultiPolygon toPolygons() throws GeometryException {

        MultiPolygon multiPolygon = new MultiPolygon2D();

        Polygon polygon = new Polygon2D(getJTS().getCoordinates());

        multiPolygon.addPrimitive(polygon);

        return multiPolygon;

    }

    public Shape getShape(AffineTransform affineTransform) {

            double radious = this.getRadious();

            Point center = this.getCenter();

            java.awt.geom.Point2D origin = new java.awt.geom.Point2D.Double(

                    center.getX()-radious, 

                    center.getX()-radious

            );

            java.awt.geom.Point2D radiusTrans = new java.awt.geom.Point2D.Double(radious, radious);

            if( affineTransform != null ) {

                affineTransform.transform(origin, origin);

                affineTransform.transform(radiusTrans, radiusTrans);

            }

            Ellipse2D.Double ellipse = new Ellipse2D.Double(

                    origin.getX(),

                    origin.getY(), 

                    radiusTrans.getX(), 

                    radiusTrans.getY()

            );

            return ellipse;

    }

}