svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.mapcontext / org.gvsig.fmap.mapcontext.api / src / main / java / org / gvsig / fmap / mapcontext / layers / vectorial / IntersectsGeometryEvaluator.java @ 43020
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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 modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 3 of the License, or (at your option) any later
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* version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 51
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* Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us at info AT
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* gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.fmap.mapcontext.layers.vectorial; |
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import org.cresques.cts.ICoordTrans; |
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import org.cresques.cts.IProjection; |
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import org.gvsig.fmap.dal.ExpressionBuilder; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.SQLBuilder; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.tools.evaluator.AbstractEvaluator; |
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import org.gvsig.tools.evaluator.EvaluatorData; |
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import org.gvsig.tools.evaluator.EvaluatorException; |
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public class IntersectsGeometryEvaluator extends AbstractEvaluator { |
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private String geomName; |
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private Geometry geometry;
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private Geometry geometryTrans;
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private boolean isDefault; |
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private ExpressionBuilder condition;
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IntersectsGeometryEvaluator(Geometry geometry, |
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IProjection projection, FeatureType featureType, |
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String geomName,
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ExpressionBuilder builder) { |
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FeatureAttributeDescriptor fad = (FeatureAttributeDescriptor) featureType |
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.get(geomName); |
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this.isDefault = featureType.getDefaultGeometryAttributeName().equals(geomName);
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this.geometry = geometry;
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this.geometryTrans = geometry.cloneGeometry();
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ICoordTrans ct = null;
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IProjection ipro = fad.getSRS(); |
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if (ipro != null && !ipro.equals(projection)) { |
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ct = projection.getCT(ipro); |
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} |
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if (ct != null) { |
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geometryTrans.reProject(ct); |
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} |
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this.geomName = geomName;
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this.getFieldsInfo().addMatchFieldValue(geomName, geometryTrans);
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this.condition = builder.set(
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builder.ST_Intersects( |
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builder.geometry(geometry, projection), |
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builder.column(geomName) |
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) |
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); |
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} |
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@Override
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public Object evaluate(EvaluatorData data) throws EvaluatorException { |
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try {
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Geometry geom ; |
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if (isDefault) {
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Feature feature = (Feature) data.getContextValue("feature");
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geom = feature.getDefaultGeometry(); |
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} else {
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geom = (Geometry) data.getDataValue(geomName); |
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} |
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if (geom == null) { |
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return Boolean.FALSE; |
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} |
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return geometryTrans.intersects(geom);
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} catch (Exception e) { |
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return Boolean.FALSE; |
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} |
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} |
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@Override
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public String getName() { |
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return "intersects with geometry"; |
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} |
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@Override
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public String getSQL() { |
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return this.condition.toString(); |
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} |
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} |