root / branches / v2_0_0_prep / libraries / libFMap_mapcontext / src / org / gvsig / fmap / mapcontext / layers / vectorial / IntersectsGeometryEvaluator.java @ 38557
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| 1 | 24797 | 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 | 28074 | jmvivo | import org.gvsig.fmap.dal.exception.DataEvaluatorRuntimeException; |
| 6 | 25242 | jmvivo | import org.gvsig.fmap.dal.feature.Feature; |
| 7 | 24797 | vcaballero | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
| 8 | import org.gvsig.fmap.dal.feature.FeatureType; |
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| 9 | import org.gvsig.fmap.geom.Geometry; |
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| 10 | 28074 | jmvivo | import org.gvsig.fmap.geom.operation.GeometryOperationException; |
| 11 | import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
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| 12 | 24797 | vcaballero | import org.gvsig.fmap.geom.operation.relationship.DefaultRelationshipGeometryOperationContext; |
| 13 | import org.gvsig.fmap.geom.operation.relationship.Intersects; |
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| 14 | 28074 | jmvivo | import org.gvsig.fmap.geom.operation.towkt.ToWKT; |
| 15 | 24797 | vcaballero | import org.gvsig.tools.evaluator.AbstractEvaluator; |
| 16 | import org.gvsig.tools.evaluator.EvaluatorData; |
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| 17 | import org.gvsig.tools.evaluator.EvaluatorException; |
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| 18 | |||
| 19 | public class IntersectsGeometryEvaluator extends AbstractEvaluator { |
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| 20 | |||
| 21 | private String geomName; |
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| 22 | 25242 | jmvivo | private Geometry geometry;
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| 23 | 28074 | jmvivo | private String geometryWKT = null; |
| 24 | 24797 | vcaballero | private Geometry geometryTrans;
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| 25 | private String srs; |
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| 26 | 25242 | jmvivo | private boolean isDefault; |
| 27 | 24797 | vcaballero | |
| 28 | public IntersectsGeometryEvaluator(Geometry geometry,
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| 29 | 28074 | jmvivo | IProjection projection, FeatureType featureType, |
| 30 | 24797 | vcaballero | String geomName) {
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| 31 | FeatureAttributeDescriptor fad = (FeatureAttributeDescriptor) featureType |
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| 32 | .get(geomName); |
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| 33 | 25242 | jmvivo | this.isDefault = featureType.getDefaultGeometryAttributeName().equals(
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| 34 | geomName); |
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| 35 | 24797 | vcaballero | this.geometry = geometry;
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| 36 | this.geometryTrans = geometry.cloneGeometry();
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| 37 | 28074 | jmvivo | this.srs = projection.getAbrev();
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| 38 | 38557 | jldominguez | ICoordTrans ct = null;
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| 39 | |||
| 40 | IProjection ipro = fad.getSRS(); |
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| 41 | if (ipro != null) { |
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| 42 | ct = projection.getCT(ipro); |
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| 43 | } |
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| 44 | |||
| 45 | 25242 | jmvivo | if (ct != null) { |
| 46 | 24797 | vcaballero | geometryTrans.reProject(ct); |
| 47 | 25242 | jmvivo | } |
| 48 | 24797 | vcaballero | this.geomName = geomName;
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| 49 | |||
| 50 | 26325 | jmvivo | this.getFieldsInfo().addMatchFieldValue(geomName, geometryTrans);
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| 51 | |||
| 52 | 24797 | vcaballero | } |
| 53 | |||
| 54 | public Object evaluate(EvaluatorData data) throws EvaluatorException { |
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| 55 | try {
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| 56 | 25242 | jmvivo | DefaultRelationshipGeometryOperationContext context; |
| 57 | if (isDefault) {
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| 58 | Feature feature = (Feature) data.getContextValue("feature");
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| 59 | context =new DefaultRelationshipGeometryOperationContext(feature
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| 60 | .getDefaultGeometry()); |
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| 61 | |||
| 62 | } else {
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| 63 | Geometry geom = (Geometry) data.getDataValue(geomName); |
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| 64 | |||
| 65 | context = new DefaultRelationshipGeometryOperationContext(geom);
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| 66 | } |
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| 67 | return geometryTrans.invokeOperation(Intersects.CODE, context);
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| 68 | |||
| 69 | } catch (Exception e) { |
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| 70 | throw new EvaluatorException(e); |
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| 71 | 24797 | vcaballero | } |
| 72 | } |
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| 73 | |||
| 74 | public String getName() { |
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| 75 | return "intersects with geometry"; |
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| 76 | } |
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| 77 | |||
| 78 | 33053 | cordinyana | public String getSQL() { |
| 79 | 28074 | jmvivo | if (geometryWKT == null) { |
| 80 | try {
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| 81 | geometryWKT = (String) geometry.invokeOperation(ToWKT.CODE,
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| 82 | null);
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| 83 | } catch (GeometryOperationNotSupportedException e) {
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| 84 | throw new DataEvaluatorRuntimeException(e); |
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| 85 | } catch (GeometryOperationException e) {
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| 86 | throw new DataEvaluatorRuntimeException(e); |
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| 87 | } |
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| 88 | } |
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| 89 | return " intersects(GeomFromText('" + geometryWKT + "', " + "'" |
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| 90 | 25242 | jmvivo | + srs + "'" + "), " + geomName + ") "; |
| 91 | } |
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| 92 | |||
| 93 | 24797 | vcaballero | } |