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svn-gvsig-desktop / branches / v02_desarrollo / libraries / libCq CMS for java.old / src / org / cresques / geo / ReProjection.java @ 909

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/*
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 * Created on 27-abr-2004
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 */
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package org.cresques.geo;
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import java.awt.geom.Point2D;
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import java.awt.geom.Rectangle2D;
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import org.cresques.cts.ICoordTrans;
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import org.cresques.cts.IProjection;
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/**
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 * Transformada para cambios de proyecci?n
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 * 
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 * @author "Luis W. Sevilla" <sevilla_lui@gva.es>
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 */
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public class ReProjection implements ICoordTrans {
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        Projection pOrig, pDest;
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        public ReProjection(Projection pOrig, Projection pDest) {
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                this.pOrig = pOrig;
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                this.pDest = pDest;
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        }
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        public ICoordTrans getInverted() {
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                return new ReProjection(pDest, pOrig);
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        }
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        public IProjection getPOrig() { return pOrig; }
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        public IProjection getPDest() { return pDest; }
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        public Point2D convert(Point2D ptOrig, Point2D ptDest) {
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                if (pOrig.getClass() == UtmZone.class) {
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                        GeoPoint pt1 = null;
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                        pt1 = ((UtmZone) pOrig).toGeo((UtmPoint) ptOrig);
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                        if (pDest.getClass() == UtmZone.class) {
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                                ((UtmZone) pDest).fromGeo(pt1, (UtmPoint) ptDest, (UtmZone) pDest);
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                        } else if (pDest.getClass() == Geodetic.class) {
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                                ptDest.setLocation(pt1.getX(), pt1.getY());
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                                ((GeoPoint) ptDest).proj = pt1.proj;
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                        } else if (pDest.getClass() == Mercator.class) {
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                                ((Mercator) pDest).fromGeo(pt1, (ProjPoint) ptDest);
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                        }
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                } else if (pOrig.getClass() == Geodetic.class) {
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                        if (pDest.getClass() == UtmZone.class) {
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                                ((UtmZone) pDest).fromGeo((GeoPoint) ptOrig, (UtmPoint) ptDest, (UtmZone) pDest);
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                        } else if (pDest.getClass() == Mercator.class) {
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                                ((Mercator) pDest).fromGeo((GeoPoint) ptOrig, (ProjPoint) ptDest);
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                        }
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                } else if (pOrig.getClass() == Mercator.class) {
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                        GeoPoint pt1 = null;
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                        pt1 = ((Mercator) pOrig).toGeo((ProjPoint) ptOrig);
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                        if (pDest.getClass() == UtmZone.class) {
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                                ((UtmZone) pDest).fromGeo(pt1, (UtmPoint) ptDest, (UtmZone) pDest);
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                        } else if (pDest.getClass() == Geodetic.class) {
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                                ptDest.setLocation(pt1.getX(), pt1.getY());
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                                ((ProjPoint) ptDest).proj = pt1.proj;
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                        }
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                }
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                return ptDest;
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        }
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        /* (non-Javadoc)
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         * @see org.cresques.cts.ICoordTrans#convert(java.awt.geom.Rectangle2D)
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         */
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        public Rectangle2D convert(Rectangle2D rect) {
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                Point2D pt1 = new Point2D.Double(rect.getMinX(), rect.getMinY()); 
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                Point2D pt2 = new Point2D.Double(rect.getMaxX(), rect.getMaxY());
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                pt1 = convert(pt1, null);
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                pt2 = convert(pt2, null);
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                rect = new Rectangle2D.Double();
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                rect.setFrameFromDiagonal(pt1, pt2);
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                return rect;
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        }
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}