svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.geometry / org.gvsig.expressionevaluator.geometry.lib / org.gvsig.expressionevaluator.geometry.lib.impl / src / main / java / org / gvsig / expressionevaluator / impl / function / spatial / STSetSRIDFunction.java @ 44644
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1 | 43512 | jjdelcerro | package org.gvsig.expressionevaluator.impl.function.spatial; |
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2 | |||
3 | import org.apache.commons.lang3.Range; |
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4 | 44253 | jjdelcerro | import org.cresques.cts.IProjection; |
5 | import org.gvsig.expressionevaluator.ExpressionRuntimeException; |
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6 | 44644 | jjdelcerro | import static org.gvsig.expressionevaluator.GeometryExpressionBuilderHelper.FUNCTION_ST_SETSRID; |
7 | 43521 | jjdelcerro | import org.gvsig.expressionevaluator.Interpreter; |
8 | 44644 | jjdelcerro | import org.gvsig.expressionevaluator.spi.AbstractGeometryFunction; |
9 | 44253 | jjdelcerro | import org.gvsig.fmap.crs.CRSFactory; |
10 | 43518 | jjdelcerro | import org.gvsig.fmap.geom.Geometry; |
11 | 43512 | jjdelcerro | |
12 | 44644 | jjdelcerro | public class STSetSRIDFunction extends AbstractGeometryFunction { |
13 | 43512 | jjdelcerro | |
14 | 44253 | jjdelcerro | public STSetSRIDFunction() {
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15 | super("OGC", FUNCTION_ST_SETSRID, Range.is(2)); |
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16 | 43512 | jjdelcerro | } |
17 | |||
18 | @Override
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19 | 44009 | jjdelcerro | public boolean allowConstantFolding() { |
20 | return true; |
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21 | } |
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22 | |||
23 | @Override
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24 | 43521 | jjdelcerro | public Object call(Interpreter interpreter, Object[] args) throws Exception { |
25 | 44253 | jjdelcerro | Geometry geom = this.getGeom(args, 0); |
26 | int srid = this.getInt(args, 1); |
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27 | IProjection proj = CRSFactory.getCRS("EPSG:"+srid);
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28 | if( proj==null ) { |
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29 | throw new ExpressionRuntimeException("Invalid SRID '"+srid+"'."); |
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30 | 43518 | jjdelcerro | } |
31 | 44253 | jjdelcerro | geom.setProjection(proj); |
32 | return geom;
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33 | 43512 | jjdelcerro | } |
34 | |||
35 | } |