svn-gvsig-desktop / trunk / libraries / libCq CMS for java.old / src / org / cresques / cts / gt2 / CoordSys.java @ 7310
History | View | Annotate | Download (5.54 KB)
1 |
/*
|
---|---|
2 |
* Cresques Mapping Suite. Graphic Library for constructing mapping applications.
|
3 |
*
|
4 |
* Copyright (C) 2004-5.
|
5 |
*
|
6 |
* This program is free software; you can redistribute it and/or
|
7 |
* modify it under the terms of the GNU General Public License
|
8 |
* as published by the Free Software Foundation; either version 2
|
9 |
* of the License, or (at your option) any later version.
|
10 |
*
|
11 |
* This program is distributed in the hope that it will be useful,
|
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
14 |
* GNU General Public License for more details.
|
15 |
*
|
16 |
* You should have received a copy of the GNU General Public License
|
17 |
* along with this program; if not, write to the Free Software
|
18 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
19 |
*
|
20 |
* For more information, contact:
|
21 |
*
|
22 |
* cresques@gmail.com
|
23 |
*/
|
24 |
package org.cresques.cts.gt2; |
25 |
|
26 |
import java.awt.Color; |
27 |
import java.awt.Graphics2D; |
28 |
import java.awt.geom.Point2D; |
29 |
import java.awt.geom.Rectangle2D; |
30 |
|
31 |
import org.cresques.cts.ICoordTrans; |
32 |
import org.cresques.cts.IDatum; |
33 |
import org.cresques.cts.IProjection; |
34 |
import org.cresques.cts.ProjectionPool; |
35 |
import org.cresques.geo.ViewPortData; |
36 |
import org.geotools.cs.CoordinateSystem; |
37 |
import org.geotools.cs.CoordinateSystemFactory; |
38 |
import org.geotools.cs.GeographicCoordinateSystem; |
39 |
import org.geotools.cs.ProjectedCoordinateSystem; |
40 |
|
41 |
|
42 |
/**
|
43 |
* Sistema de Coordenadas (Proyecci?n).
|
44 |
* @author "Luis W. Sevilla" <sevilla_lui@gva.es>
|
45 |
*/
|
46 |
public class CoordSys implements IProjection { |
47 |
private static final Color basicGridColor = new Color(64, 64, 64, 128); |
48 |
protected CoordinateSystemFactory csFactory = CoordinateSystemFactory.getDefault();
|
49 |
protected CSDatum datum = null; |
50 |
protected GeographicCoordinateSystem geogCS = null; |
51 |
protected ProjectedCoordinateSystem projCS = null; |
52 |
protected String abrev = ""; |
53 |
Color gridColor = basicGridColor;
|
54 |
|
55 |
public CoordSys(CSDatum datum) {
|
56 |
this.datum = datum;
|
57 |
} |
58 |
|
59 |
/**
|
60 |
* Crea un nuevo CoordSys geogr?fico a partir de uno proyectado.
|
61 |
* Si el actual es geogr?fico retorna el mismo.
|
62 |
* @return
|
63 |
*/
|
64 |
public CoordSys toGeo() {
|
65 |
CoordSys coordSys = new CoordSys((CSDatum) getDatum());
|
66 |
|
67 |
if (geogCS != null) { |
68 |
coordSys.geogCS = this.geogCS;
|
69 |
} else {
|
70 |
coordSys.geogCS = projCS.getGeographicCoordinateSystem(); |
71 |
} |
72 |
|
73 |
return coordSys;
|
74 |
} |
75 |
|
76 |
public IDatum getDatum() {
|
77 |
return datum;
|
78 |
} |
79 |
|
80 |
public CoordinateSystem getCS() {
|
81 |
if (projCS != null) { |
82 |
return projCS;
|
83 |
} |
84 |
|
85 |
return geogCS;
|
86 |
} |
87 |
|
88 |
public CoordinateSystem getGeogCS() {
|
89 |
if (geogCS != null) { |
90 |
return geogCS;
|
91 |
} |
92 |
|
93 |
return projCS.getGeographicCoordinateSystem();
|
94 |
} |
95 |
|
96 |
/* (no Javadoc)
|
97 |
* @see org.cresques.cts.IProjection#createPoint(double, double)
|
98 |
*/
|
99 |
public Point2D createPoint(double x, double y) { |
100 |
return new Point2D.Double(x, y); |
101 |
} |
102 |
|
103 |
public String toString() { |
104 |
if (projCS != null) { |
105 |
return projCS.toString();
|
106 |
} |
107 |
|
108 |
return geogCS.toString();
|
109 |
} |
110 |
|
111 |
public void setAbrev(String abrev) { |
112 |
this.abrev = abrev;
|
113 |
} |
114 |
|
115 |
public String getAbrev() { |
116 |
return abrev;
|
117 |
} |
118 |
|
119 |
/* (no Javadoc)
|
120 |
* @see org.cresques.cts.IProjection#drawGrid(java.awt.Graphics2D, org.cresques.geo.ViewPortData)
|
121 |
*/
|
122 |
public void drawGrid(Graphics2D g, ViewPortData vp) { |
123 |
// TODO Ap?ndice de m?todo generado autom?ticamente
|
124 |
} |
125 |
|
126 |
public void setGridColor(Color c) { |
127 |
gridColor = c; |
128 |
} |
129 |
|
130 |
public Color getGridColor() { |
131 |
return gridColor;
|
132 |
} |
133 |
|
134 |
/* (no Javadoc)
|
135 |
* @see org.cresques.cts.IProjection#toGeo(java.awt.geom.Point2D)
|
136 |
*/
|
137 |
public Point2D toGeo(Point2D pt) { |
138 |
if (getGeogCS() == geogCS) {
|
139 |
return pt;
|
140 |
} else {
|
141 |
CoordTrans ct = new CoordTrans(this, toGeo()); |
142 |
|
143 |
return ct.convert(pt, null); |
144 |
} |
145 |
} |
146 |
|
147 |
/* (no Javadoc)
|
148 |
* @see org.cresques.cts.IProjection#fromGeo(java.awt.geom.Point2D, java.awt.geom.Point2D)
|
149 |
*/
|
150 |
public Point2D fromGeo(Point2D gPt, Point2D mPt) { |
151 |
// TODO Ap?ndice de m?todo generado autom?ticamente
|
152 |
return null; |
153 |
} |
154 |
|
155 |
public double getScale(double minX, double maxX, double w, double dpi) { |
156 |
double scale = 0D; |
157 |
|
158 |
if (projCS == null) { // Es geogr?fico; calcula la escala. |
159 |
scale = ((maxX - minX) * // grados
|
160 |
|
161 |
// 1852.0 metros x minuto de meridiano
|
162 |
(dpi / 2.54 * 100.0 * 1852.0 * 60.0)) / // px / metro |
163 |
w; // pixels
|
164 |
} |
165 |
|
166 |
return scale;
|
167 |
} |
168 |
public Rectangle2D getExtent(Rectangle2D extent,double scale,double wImage,double hImage,double changeUnits,double dpi) { |
169 |
double w =0; |
170 |
double h =0; |
171 |
double wExtent =0; |
172 |
double hExtent =0; |
173 |
if (projCS!=null) { |
174 |
w = ((wImage / dpi) * 2.54);
|
175 |
h = ((hImage / dpi) * 2.54);
|
176 |
wExtent =w * scale/ changeUnits; |
177 |
hExtent =h * scale/ changeUnits; |
178 |
|
179 |
}else {
|
180 |
w = ((wImage / dpi) * 2.54);
|
181 |
h = ((hImage / dpi) * 2.54);
|
182 |
wExtent =(w*scale)/ (changeUnits*1852.0*60.0); |
183 |
hExtent =(h*scale)/ (changeUnits*1852.0*60.0); |
184 |
} |
185 |
double xExtent = extent.getCenterX() - wExtent/2; |
186 |
double yExtent = extent.getCenterY() - hExtent/2; |
187 |
Rectangle2D rec=new Rectangle2D.Double(xExtent,yExtent,wExtent,hExtent); |
188 |
return rec;
|
189 |
} |
190 |
public boolean isProjected() { |
191 |
return projCS != null; |
192 |
} |
193 |
|
194 |
public ICoordTrans getCT(IProjection dest) {
|
195 |
// TODO Auto-generated method stub
|
196 |
return new CoordTrans(this, (CoordSys) dest); |
197 |
} |
198 |
} |