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 / WithinGeometryEvaluator.java @ 43739
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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.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 WithinGeometryEvaluator extends AbstractEvaluator { |
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private final String geomName; |
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private final Geometry geometry; |
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private final Geometry geometryTrans; |
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private final boolean isDefault; |
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private final ExpressionBuilder builder; |
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private final IProjection projection; |
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private final FeatureAttributeDescriptor fad; |
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/**
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* @param geometry
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* @param projection
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* @param featureType
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* @param geomName
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* @deprecated use @{link org.gvsig.fmap.mapcontext.layers.vectorial.SpatialEvaluatorsFactory}
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*/
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public WithinGeometryEvaluator(
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Geometry geometry, |
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IProjection projection, |
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FeatureType featureType, |
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String geomName
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) { |
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this(
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geometry, |
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projection, |
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featureType, |
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geomName, |
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SpatialEvaluatorsFactory.getInstance().createBuilder() |
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); |
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} |
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WithinGeometryEvaluator( |
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Geometry geometry, |
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IProjection projection, |
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FeatureType featureType, |
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String geomName,
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ExpressionBuilder builder |
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) { |
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fad = (FeatureAttributeDescriptor) featureType.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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this.projection = projection;
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this.builder = builder;
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IProjection fad_proj = fad.getSRS(); |
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ICoordTrans ct = null;
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if (fad_proj != null && !fad_proj.equals(projection)) { |
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ct = projection.getCT(fad_proj); |
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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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} |
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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 false; |
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} |
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return geometryTrans.within(geom);
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} catch (Exception e) { |
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throw new EvaluatorException(e); |
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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 "within with geometry"; |
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} |
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@Override
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public String getSQL() { |
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return this.builder.set( |
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builder.ST_Within( |
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builder.geometry(geometry, projection), |
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builder.column(fad) |
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) |
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).toString(); |
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} |
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} |