/*
* The JTS Topology Suite is a collection of Java classes that
* implement the fundamental operations required to validate a given
* geo-spatial data set to a known topological specification.
*
* Copyright (C) 2001 Vivid Solutions
*
* 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; either
* version 2.1 of the License, or (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For more information, contact:
*
* Vivid Solutions
* Suite #1A
* 2328 Government Street
* Victoria BC V8T 5G5
* Canada
*
* (250)385-6040
* www.vividsolutions.com
*/
package com.vividsolutions.jts.index.strtree;
import com.vividsolutions.jts.geom.Geometry;
/**
* An ItemDistance function for
* items which are {@link Geometry}s,
* using the {@link Geometry#distance(Geometry)} method.
*
* @author Martin Davis
*
*/
public class GeometryItemDistance
implements ItemDistance
{
/**
* Computes the distance between two {@link Geometry} items,
* using the {@link Geometry#distance(Geometry)} method.
*
* @param item1 an item which is a Geometry
* @param item2 an item which is a Geometry
* @return the distance between the geometries
* @throws ClassCastException if either item is not a Geometry
*/
public double distance(ItemBoundable item1, ItemBoundable item2) {
Geometry g1 = (Geometry) item1.getItem();
Geometry g2 = (Geometry) item2.getItem();
return g1.distance(g2);
}
}