/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2006-2008, 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.geometry.iso.primitive;
import org.geotools.geometry.iso.complex.ComplexImpl;
import org.opengis.geometry.Boundary;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
/**
*
* The abstract root data type for all the data types used to represent the
* boundary of geometric objects is Boundary (Figure 7). Any subclass of Object
* will use a subclass of Boundary to represent its boundary through the
* operation Object::boundary. By the nature of geometry, boundary objects are
* cycles. Boundary: {isCycle() = TRUE}
*
* @author Jackson Roehrig & Sanjay Jena
*
*
*
* @source $URL$
*/
public abstract class BoundaryImpl extends ComplexImpl implements Boundary {
/**
* @param crs
*/
public BoundaryImpl(CoordinateReferenceSystem crs) {
super(crs);
}
/*
* (non-Javadoc)
*
* @see org.opengis.geometry.coordinate.root.Geometry#isCycle()
*/
public boolean isCycle() {
// implementation ok
// Boundaries are always a cycle, because their boundary is empty
return true;
}
/* (non-Javadoc)
* @see org.geotools.geometry.featgeom.root.GeometryImpl#getBoundary()
*/
public Boundary getBoundary() {
// Wie telefonisch besprochen 4.Okt.2006 geben wir hier NULL zurueck
// A boundary does not have a boundary. Thus, the Boundary of a Boundary is NULL.
return null;
}
}