/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.filter.function;
//this code is autogenerated - you shouldnt be modifying it!
import static org.geotools.filter.capability.FunctionNameImpl.parameter;
import org.geotools.filter.FunctionExpressionImpl;
import org.geotools.filter.capability.FunctionNameImpl;
import org.opengis.filter.capability.FunctionName;
import com.vividsolutions.jts.geom.Geometry;
public class FilterFunction_getZ extends FunctionExpressionImpl {
public static FunctionName NAME = new FunctionNameImpl("getz", Double.class,
parameter("geometry", Geometry.class));
public FilterFunction_getZ() {
super(NAME);
}
public Object evaluate(Object feature) {
Geometry arg0;
try{ //attempt to get value and perform conversion
arg0 = (Geometry) getExpression(0).evaluate(feature);
}
catch (Exception e) // probably a type error
{
throw new IllegalArgumentException("Filter Function problem for function getZ argument #0 - expected type Geometry");
}
return new Double(arg0.getCentroid().getCoordinate().z);
}
}