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svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.operation / src / main / java / org / gvsig / fmap / geom / operation / relationship / Overlaps.java @ 40596

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/**
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 * gvSIG. Desktop Geographic Information System.
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 *
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 * Copyright (C) 2007-2013 gvSIG Association.
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 3
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 * of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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 * MA  02110-1301, USA.
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 *
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 * For any additional information, do not hesitate to contact us
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 * at info AT gvsig.com, or visit our website www.gvsig.com.
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 */
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package org.gvsig.fmap.geom.operation.relationship;
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import org.gvsig.fmap.geom.Geometry;
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import org.gvsig.fmap.geom.GeometryLocator;
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import org.gvsig.fmap.geom.operation.GeometryOperation;
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import org.gvsig.fmap.geom.operation.GeometryOperationContext;
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import org.gvsig.fmap.geom.operation.GeometryOperationException;
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import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException;
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import org.gvsig.fmap.geom.operation.tojts.ToJTS;
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/**
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 * @author jmvivo
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 * 
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 */
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public class Overlaps extends GeometryOperation {
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    public static final String NAME = "overlaps";
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        public static final int CODE = GeometryLocator.getGeometryManager().
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            getGeometryOperationCode(NAME);
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        /*
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         * (non-Javadoc)
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         * 
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         * @see org.gvsig.fmap.geom.operation.GeometryOperation#getOperationIndex()
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         */
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        public int getOperationIndex() {
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                return CODE;
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        }
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        /*
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         * (non-Javadoc)
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         * 
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         * @see org.gvsig.fmap.geom.operation.GeometryOperation#invoke(org.gvsig.fmap.geom.Geometry,
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         *      org.gvsig.fmap.geom.operation.GeometryOperationContext)
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         */
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        public Object invoke(Geometry geom, GeometryOperationContext ctx)
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                        throws GeometryOperationException {
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        Geometry otherGeom = (Geometry) ctx.getAttribute("geom");
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                // TODO optimizar esto para los rectangulos (envelope)
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                com.vividsolutions.jts.geom.Geometry jtsGeom = null;
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                com.vividsolutions.jts.geom.Geometry otherJtsGeom = null;
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                try {
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                        jtsGeom = (com.vividsolutions.jts.geom.Geometry) geom
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                                        .invokeOperation(ToJTS.CODE, null);
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                } catch (GeometryOperationNotSupportedException e) {
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                        throw new GeometryOperationException(geom.getType(), CODE, e);
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                }
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                try {
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                        otherJtsGeom = (com.vividsolutions.jts.geom.Geometry) otherGeom
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                                        .invokeOperation(ToJTS.CODE, null);
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                } catch (GeometryOperationNotSupportedException e) {
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                        throw new GeometryOperationException(otherGeom.getType(), CODE, e);
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                }
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                return new Boolean(jtsGeom.overlaps(otherJtsGeom));
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        }
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}