Application: gvSIG desktop » gvSIG tools: Vector editing

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright ? 2007-2014 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.vectorediting.lib.prov.circle3p;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryLocator;

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

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

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

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

import org.gvsig.fmap.geom.type.GeometryType;

import org.gvsig.tools.dynobject.DynObject;

import org.gvsig.tools.service.spi.ProviderServices;

import org.gvsig.vectorediting.lib.api.DrawingStatus;

import org.gvsig.vectorediting.lib.api.exceptions.FinishServiceException;

import org.gvsig.vectorediting.lib.spi.EditingProvider;

import org.gvsig.vectorediting.lib.spi.EditingProviderServices;

public class Circumference3PEditingProvider extends Circle3PEditingProvider

    implements EditingProvider {

    public Circumference3PEditingProvider(ProviderServices providerServices,

        DynObject parameters) {

        super(providerServices, parameters);

    }

    @Override

    public Geometry finish() throws FinishServiceException {

        Point thridPointValue = (Point) values.get(thirdPoint);

        EditingProviderServices editingProviderServices =

            (EditingProviderServices) getProviderServices();

        Point firstPointValue = (Point) values.get(firstPoint);

        Point secondPointValue = (Point) values.get(secondPoint);

        Point thirdPointValue = (Point) values.get(thirdPoint);

        try {

            int subtype = editingProviderServices.getSubType(featureStore);

            Point center =

                editingProviderServices.getCenter(firstPointValue,

                    secondPointValue, thirdPointValue, subtype);

            double radius = center.distance(firstPointValue);

            Arc circumference =

                editingProviderServices.createArc(center, radius, 0,

                    2 * Math.PI, subtype);

            GeometryType geomType =

                editingProviderServices.getGeomType(featureStore);

            if (geomType.isTypeOf(MULTICURVE)) {

                MultiCurve multiCurve;

                multiCurve =

                    GeometryLocator.getGeometryManager().createMultiCurve(

                        geomType.getSubType());

                multiCurve.addCurve(circumference);

                return multiCurve;

            }

            return circumference;

        } catch (Exception e) {

            throw new FinishServiceException(e);

        }

    }

    @Override

    public String getName() {

        return Circumference3PEditingProviderFactory.PROVIDER_NAME;

    }

}