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 / ContainsEnvelopeEvaluator.java @ 43020
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2013 gvSIG Association.
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 3
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | */
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24 | 40435 | jjdelcerro | package org.gvsig.fmap.mapcontext.layers.vectorial; |
25 | |||
26 | import org.cresques.cts.IProjection; |
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27 | |||
28 | import org.gvsig.fmap.dal.exception.DataEvaluatorRuntimeException; |
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29 | import org.gvsig.fmap.dal.feature.Feature; |
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30 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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31 | import org.gvsig.fmap.dal.feature.FeatureType; |
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32 | import org.gvsig.fmap.geom.Geometry; |
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33 | import org.gvsig.fmap.geom.operation.GeometryOperationException; |
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34 | import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
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35 | import org.gvsig.fmap.geom.primitive.Envelope; |
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36 | import org.gvsig.tools.evaluator.AbstractEvaluator; |
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37 | import org.gvsig.tools.evaluator.EvaluatorData; |
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38 | import org.gvsig.tools.evaluator.EvaluatorException; |
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39 | |||
40 | public class ContainsEnvelopeEvaluator extends AbstractEvaluator { |
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41 | |||
42 | private Envelope envelope;
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43 | private String geomName; |
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44 | private Envelope envelopeTrans;
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45 | private boolean isDefault; |
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46 | private String srs; |
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47 | private String envelopeWKT; |
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48 | |||
49 | 43020 | jjdelcerro | ContainsEnvelopeEvaluator(Envelope envelope, |
50 | 40435 | jjdelcerro | IProjection envelopeProjection, FeatureType featureType, |
51 | String geomName) {
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52 | FeatureAttributeDescriptor fad = (FeatureAttributeDescriptor) featureType |
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53 | .get(geomName); |
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54 | |||
55 | this.isDefault = featureType.getDefaultGeometryAttributeName().equals(
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56 | geomName); |
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57 | this.envelope = envelope;
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58 | // this.srs = envelopeProjection.getAbrev();
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59 | // this.projection=CRSFactory.getCRS(fad.getSRS());
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60 | // this.envelopeProjection=envelopeProjection;
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61 | // ICoordTrans ct = null;
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62 | // if (!this.srs.equals(fad.getSRS())) { // FIXME comparaci�n
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63 | // ct = envelopeProjection.getCT(fad.getSRS());
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64 | // }
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65 | // if (ct != null) {
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66 | // this.envelopeTrans = envelope.convert(ct);
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67 | // } else {
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68 | this.envelopeTrans = envelope;
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69 | // }
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70 | this.geomName = geomName;
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71 | this.srs = envelopeProjection.getAbrev();
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72 | this.getFieldsInfo().addMatchFieldValue(geomName, envelopeTrans);
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73 | |||
74 | } |
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75 | |||
76 | public Object evaluate(EvaluatorData data) throws EvaluatorException { |
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77 | Envelope featureEnvelope; |
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78 | if (isDefault) {
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79 | featureEnvelope = ((Feature) data.getContextValue("feature"))
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80 | .getDefaultEnvelope(); |
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81 | |||
82 | } else {
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83 | 41348 | jjdelcerro | Geometry geom = (Geometry) data.getDataValue(geomName); |
84 | if( geom == null ) { |
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85 | return Boolean.FALSE; |
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86 | } |
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87 | featureEnvelope = geom.getEnvelope(); |
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88 | 40435 | jjdelcerro | } |
89 | return new Boolean(envelopeTrans.contains(featureEnvelope)); |
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90 | } |
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91 | |||
92 | public String getName() { |
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93 | return "contains in envelope"; |
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94 | } |
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95 | |||
96 | public String getSQL() { |
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97 | if (envelopeWKT == null) { |
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98 | try {
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99 | envelopeWKT = envelope.getGeometry().convertToWKT(); |
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100 | } catch (GeometryOperationNotSupportedException e) {
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101 | throw new DataEvaluatorRuntimeException(e); |
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102 | } catch (GeometryOperationException e) {
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103 | throw new DataEvaluatorRuntimeException(e); |
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104 | } |
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105 | } |
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106 | return " ST_contains(ST_GeomFromText('" + envelopeWKT + "', '" + srs |
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107 | + "'), ST_envelope(" + geomName + ")) "; |
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108 | } |
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109 | |||
110 | } |