svn-gvsig-desktop / tags / v1_1_Build_1005 / libraries / libCq CMS for java.old / src / org / cresques / geo / UtmZone.java @ 12355
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/*
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* Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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*
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* Copyright (C) 2004-5.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* cresques@gmail.com
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*/
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package org.cresques.geo; |
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import geojava.GeoUtm; |
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import geojava.Ra2De; |
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import geojava.UtmGeo; |
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import org.cresques.cts.ICoordTrans; |
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import org.cresques.cts.IDatum; |
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import org.cresques.cts.IProjection; |
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import org.cresques.px.Extent; |
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import java.awt.Graphics2D; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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public class UtmZone extends Projection { |
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static String name = "UTM"; |
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static String abrev = "UTM"; |
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private final static UtmZone ed5028N = new UtmZone(Ellipsoid.ed50, 28, 0, |
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0.0);
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private final static UtmZone ed5029N = new UtmZone(Ellipsoid.ed50, 29, 0, |
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0.0);
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private final static UtmZone ed5030N = new UtmZone(Ellipsoid.ed50, 30, 0, |
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0.0);
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private final static UtmZone ed5031N = new UtmZone(Ellipsoid.ed50, 31, 0, |
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0.0);
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private final static UtmZone hayford28N = new UtmZone(Ellipsoid.hayford, |
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28, 0, 0.0); |
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private final static UtmZone hayford29N = new UtmZone(Ellipsoid.hayford, |
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29, 0, 0.0); |
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private final static UtmZone hayford30N = new UtmZone(Ellipsoid.hayford, |
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30, 0, 0.0); |
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private final static UtmZone hayford31N = new UtmZone(Ellipsoid.hayford, |
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31, 0, 0.0); |
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static GeoUtm geoutm = new GeoUtm(); |
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static UtmGeo utmgeo = new UtmGeo(); |
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public int Zone = 30; |
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public int Hemisphere = 0; |
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public double H = 0.0; |
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public UtmZone(Ellipsoid eli, int zone, int hemisphere, double h) { |
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super(eli);
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Zone = zone; |
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Hemisphere = hemisphere; |
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H = h; |
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grid = new Graticule(this); |
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} |
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public String getAbrev() { |
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return abrev + Zone;
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} |
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public static UtmZone getProjection(Ellipsoid eli, int zone, int hemisphere) { |
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if ((eli == Ellipsoid.hayford) && (hemisphere == 0)) { |
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switch (zone) {
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case 28: |
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return hayford28N;
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case 29: |
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return hayford29N;
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case 30: |
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return hayford30N;
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case 31: |
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return hayford31N;
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} |
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} else if ((eli == Ellipsoid.ed50) && (hemisphere == 0)) { |
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switch (zone) {
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case 28: |
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return ed5028N;
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case 29: |
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return ed5029N;
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case 30: |
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return ed5030N;
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case 31: |
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return ed5031N;
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} |
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} |
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System.err.println("UtmZone.getProjection(): new " + zone); |
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return new UtmZone(eli, zone, hemisphere, 0.0); |
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} |
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/**
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*
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*/
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public static IProjection getProjectionByName(IDatum eli, String name) { |
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int zone;
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int hemisphere = NORTH;
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if (name.indexOf("UTM") < 0) { |
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return null; |
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} |
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if (name.substring(0, 1).compareTo("S") == 0) { |
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hemisphere = SOUTH; |
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} |
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zone = Integer.parseInt(name.substring(name.length() - 2)); |
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return getProjection((Ellipsoid) eli, zone, hemisphere);
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} |
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/**
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*
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*/
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public Point2D createPoint(double x, double y) { |
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return new UtmPoint(this, x, y); |
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} |
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/**
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*
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* @param uPt
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* @return
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*/
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public Point2D toGeo(Point2D uPt) { |
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GeoPoint gPt = new GeoPoint();
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return toGeo((UtmPoint) uPt, gPt);
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} |
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/**
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*
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* @param uPt
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* @param gPt
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* @return
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*/
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public GeoPoint toGeo(UtmPoint uPt, GeoPoint gPt) {
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int[] ai = new int[3]; |
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double[] ad = new double[3]; |
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ai[1] = ((UtmZone) uPt.proj).Zone;
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ai[2] = ((UtmZone) uPt.proj).Hemisphere;
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ad[1] = uPt.X;
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ad[2] = uPt.Y;
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utmgeo.set(((Projection) uPt.proj).getElliPar(), ai, ad); |
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utmgeo.go(); |
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gPt.Longitude = Ra2De.go(utmgeo.Ge[1]);
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gPt.Latitude = Ra2De.go(utmgeo.Ge[2]);
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gPt.proj = Geodetic.getProjection(((Projection) uPt.proj).eli); |
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return gPt;
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} |
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/**
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*
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* @param gPt
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* @param uPt
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* @return
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*/
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public Point2D fromGeo(Point2D gPt, Point2D uPt) { |
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int[] ai = { 0, 0, 2 }; |
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return fromGeo((GeoPoint) gPt, (UtmPoint) uPt, ai);
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} |
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/**
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*
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* @param gPt
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* @param uPt
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* @param proj
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* @return
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*/
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public UtmPoint fromGeo(GeoPoint gPt, UtmPoint uPt, UtmZone proj) {
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int[] ai = { 0, proj.Zone, proj.Hemisphere }; |
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return fromGeo(gPt, uPt, ai);
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} |
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/**
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*
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* @param gPt
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* @param uPt
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* @param ai
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* @return
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*/
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public UtmPoint fromGeo(GeoPoint gPt, UtmPoint uPt, int[] ai) { |
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double[] ad = new double[4]; |
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ad[1] = gPt.Longitude.ToRadians();
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ad[2] = gPt.Latitude.ToRadians();
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geoutm.set(((Projection) gPt.proj).getElliPar(), ai, ad); |
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geoutm.go(); |
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if (geoutm.Ier != 0) { |
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return null; |
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} |
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uPt.setLocation(geoutm.Pr[1], geoutm.Pr[2]); |
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if ((((UtmZone) uPt.proj).Zone != geoutm.Iopar[1]) || |
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(((UtmZone) uPt.proj).Hemisphere != geoutm.Iopar[2])) {
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uPt.proj = UtmZone.getProjection(((Projection) uPt.proj).eli, |
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geoutm.Iopar[1], geoutm.Iopar[2]); |
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} |
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return uPt;
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} |
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// Calcula el step en funci?n del zoom
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private void generateGrid(Graphics2D g, Extent extent, AffineTransform mat) { |
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// calculo del step en funci?n del zoom
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Point2D pt1 = extent.getMin();
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double step = 1.0; |
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double x = (int) pt1.getX(); |
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double dist = 0.0; |
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/* GeoPoint gp1, gp2;
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gp1 = (GeoPoint) createPoint( x, (int) pt1.getY());
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mat.transform(gp1, gp1);
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gp2 = (GeoPoint) createPoint(gp1.getX()+100, gp1.getY()-100);
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try {
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mat.inverseTransform(gp2, gp2);
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} catch (NoninvertibleTransformException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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dist = (gp2.getX()-x);
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System.err.println("distX = " + dist);
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if (dist > 30.0) { step = 30.0;
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} else if (dist > 18.0) { step = 18.0;
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} else if (dist > 12.0) { step = 12.0;
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} else if (dist > 6.0) { step = 6.0;
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} else if (dist > 3.0) { step = 3.0;
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} else if (dist > 2.0) { step = 2.0;
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} else if (dist > 1.0) { step = 1.0;
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} else if (dist > .5) { step =.5;
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} else if (dist > .25) { step =.25;
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} else if (dist > 1.0/60*5.0) { step = 1.0/60*5.0;
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} else { step = 1.0/60*2.0;
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}
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//step = 1.0;
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*/
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generateGrid(g, extent, mat, step); |
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} |
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private void generateGrid(Graphics2D g, Extent extent, AffineTransform mat, |
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double step) {
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grid = new Graticule(this); |
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Point2D pt1 = extent.getMin();
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Point2D pt2 = extent.getMax();
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GeoPoint gp1; |
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GeoPoint gp2; |
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UtmPoint up1 = (UtmPoint) createPoint(0, 0); |
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UtmPoint up2 = (UtmPoint) createPoint(0, 0); |
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Point2D.Double mp1 = new Point2D.Double(0.0, 0.0); |
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Point2D.Double mp2 = new Point2D.Double(0.0, 0.0); |
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Geodetic geoProj = Geodetic.getProjection((Ellipsoid) getDatum()); |
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boolean esUso = false; |
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System.err.println(name + ": ViewPort Extent = (" + pt1 + "," + pt2 + |
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")");
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gp1 = (GeoPoint) toGeo(new UtmPoint(pt1.getX(), pt2.getY()));
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gp2 = (GeoPoint) toGeo(new UtmPoint(pt2));
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double xMin = (int) gp1.getX() - 1.0; |
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double xMax = (int) gp2.getX() + 1.0; |
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gp1 = (GeoPoint) toGeo(new UtmPoint(pt1.getX() +
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((pt2.getX() - pt1.getX()) / 2.0),
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pt2.getY())); |
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double yMax = (int) gp1.getY() + 2.0; |
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gp1 = (GeoPoint) toGeo(new UtmPoint(pt1));
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double yMin = (int) gp1.getY() - 1.0; |
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xMin = -30.0;
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xMax = 30.0;
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yMin = 20.0;
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yMax = 60.0;
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for (double x = xMin; x <= xMax; x += step) { |
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up1 = null;
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if (Math.abs((x) % 6) < .001) { |
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esUso = true;
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} |
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for (double y = yMin; y <= yMax; y += step) { |
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gp2 = (GeoPoint) geoProj.createPoint(x, y); |
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fromGeo(gp2, up2, this);
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if ((up1 != null) && (extent.isAt(up1) || extent.isAt(up2))) { |
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mat.transform(up2, mp2); |
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if (up1 != null) { |
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if (esUso) {
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grid.addLine(mp1, mp2, 1);
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} else {
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grid.addLine(mp1, mp2); |
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} |
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} |
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} else {
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mat.transform(up2, mp2); |
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} |
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up1 = (UtmPoint) up2.clone(); |
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mp1 = (Point2D.Double) mp2.clone();
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} |
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esUso = false;
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} |
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for (double y = yMin; y <= yMax; y += step) { |
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up1 = null;
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for (double x = xMin; x <= xMax; x += step) { |
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gp2 = (GeoPoint) geoProj.createPoint(x, y); |
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fromGeo(gp2, up2, this);
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if ((up1 != null) && (extent.isAt(up1) || extent.isAt(up2))) { |
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mat.transform(up2, mp2); |
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if (up1 != null) { |
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grid.addLine(mp1, mp2); |
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} |
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} else {
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mat.transform(up2, mp2); |
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} |
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up1 = (UtmPoint) up2.clone(); |
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mp1 = (Point2D.Double) mp2.clone();
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} |
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} |
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} |
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public void drawGrid(Graphics2D g, ViewPortData vp) { |
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generateGrid(g, vp.getExtent(), vp.getMat()); |
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grid.setColor(gridColor); |
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grid.draw(g, vp); |
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} |
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/* (non-Javadoc)
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* @see org.cresques.cts.IProjection#getScale(double, double, double, double)
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*/
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public double getScale(double minX, double maxX, double width, double dpi) { |
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double scale = ((maxX - minX) * // metros |
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(dpi / 2.54 * 100.0)) / // px / metro |
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width; // pixels
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return scale;
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} |
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public ICoordTrans getCT(IProjection dest) {
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// TODO Auto-generated method stub
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return null; |
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} |
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public Rectangle2D getExtent(Rectangle2D extent, double scale, double wImage, double hImage, double changeUnits, double dpi) { |
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double w =0; |
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double h =0; |
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double wExtent =0; |
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double hExtent =0; |
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w = ((wImage / dpi) * 2.54);
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h = ((hImage / dpi) * 2.54);
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wExtent =w * scale/ changeUnits; |
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hExtent =h * scale/ changeUnits; |
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double xExtent = extent.getCenterX() - wExtent/2; |
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double yExtent = extent.getCenterY() - hExtent/2; |
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Rectangle2D rec=new Rectangle2D.Double(xExtent,yExtent,wExtent,hExtent); |
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return rec;
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} |
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public String getFullCode() { |
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return getAbrev();
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} |
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} |