root / branches / v2_0_0_prep / libraries / libFMap_mapcontext / src / org / gvsig / fmap / mapcontext / layers / vectorial / OverlapsGeometryEvaluator.java @ 38605
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| 1 | 26438 | vcaballero | package org.gvsig.fmap.mapcontext.layers.vectorial; |
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| 2 | |||
| 3 | import org.cresques.cts.ICoordTrans; |
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| 4 | import org.cresques.cts.IProjection; |
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| 5 | import org.gvsig.fmap.dal.feature.Feature; |
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| 6 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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| 7 | import org.gvsig.fmap.dal.feature.FeatureType; |
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| 8 | import org.gvsig.fmap.geom.Geometry; |
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| 9 | import org.gvsig.fmap.geom.operation.relationship.DefaultRelationshipGeometryOperationContext; |
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| 10 | import org.gvsig.fmap.geom.operation.relationship.Overlaps; |
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| 11 | import org.gvsig.tools.evaluator.AbstractEvaluator; |
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| 12 | import org.gvsig.tools.evaluator.EvaluatorData; |
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| 13 | import org.gvsig.tools.evaluator.EvaluatorException; |
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| 14 | /**
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| 15 | *
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| 16 | * @author Vicente Caballero Navarro
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| 17 | *
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| 18 | */
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| 19 | public class OverlapsGeometryEvaluator extends AbstractEvaluator { |
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| 20 | |||
| 21 | private String geomName; |
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| 22 | private Geometry geometry;
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| 23 | private Geometry geometryTrans;
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| 24 | private String srs; |
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| 25 | private boolean isDefault; |
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| 26 | |||
| 27 | public OverlapsGeometryEvaluator(Geometry geometry,
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| 28 | IProjection envelopeProjection, FeatureType featureType, |
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| 29 | String geomName) {
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| 30 | FeatureAttributeDescriptor fad = (FeatureAttributeDescriptor) featureType |
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| 31 | .get(geomName); |
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| 32 | this.isDefault = featureType.getDefaultGeometryAttributeName().equals(
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| 33 | geomName); |
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| 34 | this.geometry = geometry;
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| 35 | this.geometryTrans = geometry.cloneGeometry();
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| 36 | this.srs = envelopeProjection.getAbrev();
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| 37 | 26717 | jmvivo | ICoordTrans ct = envelopeProjection.getCT(fad.getSRS()); |
| 38 | 26438 | vcaballero | if (ct != null) { |
| 39 | geometryTrans.reProject(ct); |
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| 40 | } |
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| 41 | this.geomName = geomName;
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| 42 | |||
| 43 | this.getFieldsInfo().addMatchFieldValue(geomName, geometryTrans);
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| 44 | |||
| 45 | } |
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| 46 | |||
| 47 | public Object evaluate(EvaluatorData data) throws EvaluatorException { |
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| 48 | try {
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| 49 | DefaultRelationshipGeometryOperationContext context; |
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| 50 | if (isDefault) {
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| 51 | Feature feature = (Feature) data.getContextValue("feature");
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| 52 | context =new DefaultRelationshipGeometryOperationContext(feature
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| 53 | .getDefaultGeometry()); |
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| 54 | |||
| 55 | } else {
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| 56 | Geometry geom = (Geometry) data.getDataValue(geomName); |
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| 57 | |||
| 58 | context = new DefaultRelationshipGeometryOperationContext(geom);
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| 59 | } |
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| 60 | return geometryTrans.invokeOperation(Overlaps.CODE, context);
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| 61 | |||
| 62 | } catch (Exception e) { |
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| 63 | throw new EvaluatorException(e); |
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| 64 | } |
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| 65 | } |
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| 66 | |||
| 67 | public String getName() { |
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| 68 | return "overlaps with geometry"; |
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| 69 | } |
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| 70 | |||
| 71 | 33053 | cordinyana | public String getSQL() { |
| 72 | 26438 | vcaballero | return " overlaps(GeomFromText('" + geometry.toString() + "', " + "'" |
| 73 | + srs + "'" + "), " + geomName + ") "; |
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| 74 | } |
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| 75 | |||
| 76 | } |