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.curve.arc;

import com.vividsolutions.jts.geom.Coordinate;

import java.awt.geom.PathIterator;

import org.gvsig.fmap.geom.Geometry;

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.operation.GeometryOperationException;

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

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

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

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

/**

 * @author fdiaz

 *

 */

public class Arc2D extends AbstractArc {

    /**

     *

     */

    private static final long serialVersionUID = 3414562338763885954L;

    /**

     * @param subtype

     */

    public Arc2D() {

        super(Geometry.SUBTYPES.GEOM2D);

    }

    /* (non-Javadoc)

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

     */

    public void setPoints(Point center, double radius, double startAngle, double angleExt) {

        init = new Point2D(

                center.getX()+radius*Math.cos(startAngle),

                center.getY()+radius*Math.sin(startAngle)

                );

        double midAngle = startAngle+angleExt/2;

        middle = new Point2D(

                center.getX()+radius*Math.cos(midAngle),

                center.getY()+radius*Math.sin(midAngle)

                );

        end = new Point2D(

                center.getX()+radius*Math.cos(startAngle+angleExt),

                center.getY()+radius*Math.sin(startAngle+angleExt)

                );

}

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Arc#getCenterPoint()

     */

    public Point getCenterPoint() {

        ((PointJTS)init).getJTS();

        Point2D center = new Point2D(this.getProjection(), JTSUtils.getCircumcentre(init, middle, end));

        return center;

    }

    /* (non-Javadoc)

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

     */

    public Geometry cloneGeometry() {

        Arc2D other = new Arc2D();

        other.setProjection(this.getProjection());

        Point clonedInit = (Point)init.cloneGeometry();

        Point clonedMiddle = (Point)middle.cloneGeometry();

        Point clonedEnd = (Point)end.cloneGeometry();

        other.setPoints(clonedInit, clonedMiddle, clonedEnd);

        other.setProjection(this.getProjection());

        return other;

    }

    /*

     * (non-Javadoc)

     *

     * @see

     * org.gvsig.fmap.geom.jts.primitive.curve.line.AbstractLine#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());

        }

    }

    /* (non-Javadoc)

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

     */

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

        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();

        }

        return JTSUtils.createJTSLineString(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(this.getProjection(), 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;

    }

}