/*
* Geotoolkit - An Open Source Java GIS Toolkit
* http://www.geotoolkit.org
*
* (C) 2009, Geomatys
*
* 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.geotoolkit.display2d.primitive.iso;
import java.awt.geom.AffineTransform;
import java.awt.geom.PathIterator;
import org.opengis.geometry.Geometry;
/**
* Simple abstract path iterator for ISO Geometry.
*
* @author Johann Sorel (Geomatys)
* @module
*/
public abstract class ISOGeometryIterator<T extends Geometry> implements PathIterator {
private static final AffineTransform IDENTITY = new AffineTransform();
protected double[] dcoords = new double[2];
protected AffineTransform transform;
protected final T geometry;
protected ISOGeometryIterator(final T geometry, final AffineTransform trs){
this.geometry = geometry;
this.transform = (trs == null) ? IDENTITY : trs;
}
/**
* {@inheritDoc }
*/
@Override
public int currentSegment(final float[] coords) {
int result = currentSegment(dcoords);
coords[0] = (float) dcoords[0];
coords[1] = (float) dcoords[1];
return result;
}
public void setTransform(final AffineTransform trs){
this.transform = (trs == null) ? IDENTITY : trs;
}
public AffineTransform getTransform(){
return transform;
}
public T getGeometry(){
return geometry;
}
}