/*
* 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 org.geotools.geometry.jts.ReferencedEnvelope;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
import org.opengis.referencing.crs.GeographicCRS;
/**
* Returns a {@link ProjectionHandler} for any {@link GeographicCRS}
*
* @source $URL: http://svn.osgeo.org/geotools/trunk/modules/library/render/src/main/java/org/geotools/renderer/crs/GeographicHandlerFactory.java $
*/
public class GeographicHandlerFactory implements ProjectionHandlerFactory {
public ProjectionHandler getHandler(ReferencedEnvelope renderingEnvelope, boolean wrap) {
CoordinateReferenceSystem crs = renderingEnvelope.getCoordinateReferenceSystem();
if (renderingEnvelope != null && crs instanceof GeographicCRS) {
GeographicCRS geogCrs = (GeographicCRS) crs;
if(wrap) {
double centralMeridian = geogCrs.getDatum().getPrimeMeridian().getGreenwichLongitude();
return new WrappingProjectionHandler(renderingEnvelope, null, centralMeridian);
} else {
return new ProjectionHandler(renderingEnvelope, null);
}
}
return null;
}
}