?? mercatorloader.java
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// **********************************************************************// // <copyright>// // BBN Technologies// 10 Moulton Street// Cambridge, MA 02138// (617) 873-8000// // Copyright (C) BBNT Solutions LLC. All rights reserved.// // </copyright>// **********************************************************************// // $Source: /cvs/distapps/openmap/src/openmap/com/bbn/openmap/proj/MercatorLoader.java,v $// $RCSfile: MercatorLoader.java,v $// $Revision: 1.1.2.3 $// $Date: 2005/08/11 21:03:20 $// $Author: dietrick $// // **********************************************************************package com.bbn.openmap.proj;import com.bbn.openmap.LatLonPoint;import com.bbn.openmap.util.PropUtils;import com.bbn.openmap.util.Debug;import java.util.Properties;/** * ProjectionLoader to add the Mercator projection to an OpenMap * application. * * @see BasicProjectionLoader */public class MercatorLoader extends BasicProjectionLoader implements ProjectionLoader { public final static ProjectionLoader defaultMercator = new MercatorLoader(); public MercatorLoader() { super(Mercator.class, Mercator.MercatorName, "Mercator Projection"); } /** * Create the projection with the given parameters. * * @throws exception if a parameter is missing or invalid. */ public Projection create(Properties props) throws ProjectionException { try { LatLonPoint llp = (LatLonPoint) props.get(ProjectionFactory.CENTER); float scale = PropUtils.floatFromProperties(props, ProjectionFactory.SCALE, 10000000); int height = PropUtils.intFromProperties(props, ProjectionFactory.HEIGHT, 100); int width = PropUtils.intFromProperties(props, ProjectionFactory.WIDTH, 100); return new Mercator(llp, scale, width, height); } catch (Exception e) { if (Debug.debugging("proj")) { Debug.output("MercatorLoader: problem creating Mercator projection " + e.getMessage()); } } throw new ProjectionException("MercatorLoader: problem creating Mercator projection"); }}
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