/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2005-2008, 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;
import org.geotools.geometry.jts.ReferencedEnvelope;
import org.geotools.styling.Symbolizer;
import org.opengis.filter.expression.Function;
/**
* This interface can be implemented by geometry transformation functions
* that whish to be used in the {@link Symbolizer} geometry property.
* <p>It gives the renderer a hint of what area should be queried given a certain rendering area
* @author Andrea Aime - GeoSolutions
*
*
* @source $URL: http://svn.osgeo.org/geotools/trunk/modules/library/main/src/main/java/org/geotools/filter/function/GeometryTransformation.java $
*/
public interface GeometryTransformation extends Function {
/**
* Returns a query envelope given a certain
* @param renderingEnvelope
* @return
*/
ReferencedEnvelope invert(ReferencedEnvelope renderingEnvelope);
}