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.aggregate;

import java.util.Iterator;

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.primitive.curve.line.Line2D;

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

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.Primitive;

/**

 * @author fdiaz

 *

 */

public class MultiPolygon2D extends AbstractMultiPolygon {

    /**

     *

     */

    private static final long serialVersionUID = -7018238332611444136L;

    /**

     * @param subtype

     */

    public MultiPolygon2D() {

        super(Geometry.SUBTYPES.GEOM2D);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.aggregate.MultiPolygon#toPoints()

     */

    public MultiPoint toPoints() throws GeometryException {

        MultiPoint multiPoint = new MultiPoint2D();

        for (Iterator<Primitive> iterator = primitives.iterator(); iterator.hasNext();) {

            Polygon2D polygon = (Polygon2D) iterator.next();

            MultiPoint points = polygon.toPoints();

            multiPoint.ensureCapacity(multiPoint.getPrimitivesNumber()+points.getPrimitivesNumber());

            for(int i=0; i<points.getPrimitivesNumber(); i++){

                multiPoint.addPoint(points.getPointAt(i));

            }

        }

        return multiPoint;

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.aggregate.MultiPolygon#toLines()

     */

    public MultiLine toLines() throws GeometryException {

        MultiLine multiLine = new MultiLine2D();

        for (Iterator<Primitive> iterator = primitives.iterator(); iterator.hasNext();) {

            Polygon2D polygon = (Polygon2D) iterator.next();

            MultiLine lines = polygon.toLines();

            multiLine.ensureCapacity(multiLine.getPrimitivesNumber()+lines.getPrimitivesNumber());

            for(int i=0; i<lines.getPrimitivesNumber(); i++){

                multiLine.addPrimitive((Line2D)lines.getPrimitiveAt(i));

            }

        }

        return multiLine;

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.aggregate.MultiPolygon#toPolygons()

     */

    public MultiPolygon toPolygons() throws GeometryException {

        return this;

    }

    /* (non-Javadoc)

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

     */

    @Override

    public Geometry cloneGeometry() {

        MultiPolygon2D clone = new MultiPolygon2D();

        clone.setProjection(this.getProjection());

        return clonePrimitives(clone);

    }

    /* (non-Javadoc)

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

     */

    public int getDimension() {

        return 2;

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.jts.aggregate.AbstractMultiPrimitive#fixPrimitive(org.gvsig.fmap.geom.primitive.Primitive)

     */

    @Override

    protected Geometry fixPrimitive(Primitive primitive) {

        if(primitive instanceof Polygon2D){

            return primitive;

        }

        if(primitive.getGeometryType().getSubType() == Geometry.SUBTYPES.GEOM2D){

            MultiPolygon polygons;

            try {

                polygons = primitive.toPolygons();

            } catch (GeometryException e) {

                String message = "Can't convert primitive to polygons";

                LOGGER.warn(message);

                throw new RuntimeException(message);

            }

            return polygons;

        }

        String message = "Only 2D primitives can be fixed to MultiPolygon2D";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.Geometry#transform(java.awt.geom.AffineTransform)

     */

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

        return JTSUtils.createGeometry(this.getProjection(), getJTS().buffer(distance));

    }

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

        return JTSUtils.createGeometry(this.getProjection(), getJTS().buffer(distance, JTSUtils.calculateQuadrantSegments(joinStyle)));

    }

}