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 / STDimensionFunction.java @ 44644
History | View | Annotate | Download (1.27 KB)
| 1 |
package org.gvsig.expressionevaluator.impl.function.spatial; |
|---|---|
| 2 |
|
| 3 |
import org.apache.commons.lang3.Range; |
| 4 |
import org.gvsig.expressionevaluator.Interpreter; |
| 5 |
import org.gvsig.expressionevaluator.spi.AbstractGeometryFunction; |
| 6 |
import org.gvsig.fmap.geom.Geometry; |
| 7 |
import org.gvsig.fmap.geom.type.GeometryType; |
| 8 |
|
| 9 |
public class STDimensionFunction extends AbstractGeometryFunction { |
| 10 |
|
| 11 |
public STDimensionFunction() {
|
| 12 |
super("OGC", "ST_Dimension", Range.is(1)); |
| 13 |
} |
| 14 |
|
| 15 |
@Override
|
| 16 |
public boolean allowConstantFolding() { |
| 17 |
return true; |
| 18 |
} |
| 19 |
|
| 20 |
@Override
|
| 21 |
public Object call(Interpreter interpreter, Object[] args) throws Exception { |
| 22 |
Geometry geom = getGeom(args, 0);
|
| 23 |
GeometryType type = geom.getGeometryType(); |
| 24 |
if( type.isSubTypeOf(Geometry.TYPES.POINT)
|
| 25 |
|| type.isSubTypeOf(Geometry.TYPES.MULTIPOINT) ) {
|
| 26 |
return 0; |
| 27 |
} |
| 28 |
if( type.isSubTypeOf(Geometry.TYPES.CURVE)
|
| 29 |
|| type.isSubTypeOf(Geometry.TYPES.MULTICURVE) ) {
|
| 30 |
return 1; |
| 31 |
} |
| 32 |
if( type.isSubTypeOf(Geometry.TYPES.SURFACE)
|
| 33 |
|| type.isSubTypeOf(Geometry.TYPES.MULTISURFACE) ) {
|
| 34 |
return 2; |
| 35 |
} |
| 36 |
if( type.isSubTypeOf(Geometry.TYPES.SOLID) ) {
|
| 37 |
return 3; |
| 38 |
} |
| 39 |
return -1; |
| 40 |
} |
| 41 |
|
| 42 |
} |