/*
* 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.renderer.crs;
import com.vividsolutions.jts.geom.CoordinateSequence;
import com.vividsolutions.jts.geom.CoordinateSequenceFilter;
/**
* Applies a static offset to the specified ordinate in all coordinates of the geometry
*
* @author Andrea Aime - OpenGeo
*/
class OffsetOrdinateFilter implements CoordinateSequenceFilter {
double offset;
int ordinateIndex;
public OffsetOrdinateFilter(int ordinateIndex, double offset) {
this.ordinateIndex = ordinateIndex;
this.offset = offset;
}
public void filter(CoordinateSequence seq, int i) {
seq.setOrdinate(i, ordinateIndex, seq.getOrdinate(i, ordinateIndex) + offset);
}
public boolean isDone() {
return false;
}
public boolean isGeometryChanged() {
return true;
}
}