svn-gvsig-desktop / trunk / extensions / extRasterTools-SE / src / org / gvsig / raster / beans / canvas / layers / functions / LogaritmicExponentialLine.java @ 19945
History | View | Annotate | Download (6.37 KB)
1 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
---|---|
2 |
*
|
3 |
* Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.
|
4 |
*
|
5 |
* This program is free software; you can redistribute it and/or
|
6 |
* modify it under the terms of the GNU General Public License
|
7 |
* as published by the Free Software Foundation; either version 2
|
8 |
* of the License, or (at your option) any later version.
|
9 |
*
|
10 |
* This program is distributed in the hope that it will be useful,
|
11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
13 |
* GNU General Public License for more details.
|
14 |
*
|
15 |
* You should have received a copy of the GNU General Public License
|
16 |
* along with this program; if not, write to the Free Software
|
17 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
18 |
*/
|
19 |
package org.gvsig.raster.beans.canvas.layers.functions; |
20 |
|
21 |
import java.awt.Color; |
22 |
import java.awt.Cursor; |
23 |
import java.awt.event.MouseEvent; |
24 |
import java.util.ArrayList; |
25 |
|
26 |
import org.gvsig.raster.beans.canvas.layers.InfoLayer; |
27 |
import org.gvsig.raster.util.RasterToolsUtil; |
28 |
/**
|
29 |
* Representa una funcion con posibilidad de arrastre para las funciones
|
30 |
* logaritmicas y exponenciales. Con el raton se puede pasar de una a otra
|
31 |
* directamente.
|
32 |
*
|
33 |
* Las formas mas logicas de uso seria pasandole:
|
34 |
* 1.0: Para una funcion logaritmica
|
35 |
* -1.0: Para una funcion exponencial
|
36 |
* 0.0: Para una funcion lineal
|
37 |
*
|
38 |
* @version 02/04/2008
|
39 |
* @author BorSanZa - Borja S?nchez Zamorano (borja.sanchez@iver.es)
|
40 |
*/
|
41 |
public class LogaritmicExponentialLine extends StraightLine { |
42 |
/**
|
43 |
* Numero de puntos que contiene esta funci?n
|
44 |
*/
|
45 |
double num = 50.0; |
46 |
|
47 |
/**
|
48 |
* Constructor. Asigna el color y establece la posicion de la funcion.
|
49 |
* Los valores normales son 1.0 para logaritmica y -1.0 para exponencial.
|
50 |
* El rango va desde -2.0 hasta 2.0. Siendo 0.0 una funcion lineal.
|
51 |
* @param c
|
52 |
*/
|
53 |
public LogaritmicExponentialLine(Color c, double point) { |
54 |
super(c);
|
55 |
setShowSquares(false);
|
56 |
|
57 |
recalcList(point); |
58 |
} |
59 |
|
60 |
/**
|
61 |
* Actualiza la barra informativa para saber en que estado se encuentra el
|
62 |
* componente.
|
63 |
* Cuando el porcentaje es mayor a 0 siempre estamos en la Logaritmica
|
64 |
* Cuando el porcentaje es menor a 0 siempre estamos en la exponencial
|
65 |
* @param perc
|
66 |
*/
|
67 |
private void setInfoPoint(Double perc) { |
68 |
if (canvas != null) { |
69 |
ArrayList list = canvas.getDrawableElements(InfoLayer.class);
|
70 |
if (list.size() > 0) { |
71 |
InfoLayer infoLayer = (InfoLayer) list.get(0);
|
72 |
|
73 |
if (perc == null) { |
74 |
infoLayer.setStatusLeft(null);
|
75 |
infoLayer.setStatusRight(null);
|
76 |
canvas.repaint(); |
77 |
return;
|
78 |
} |
79 |
|
80 |
if (perc.doubleValue() > 0.0) |
81 |
infoLayer.setStatusLeft(RasterToolsUtil.getText(this, "logarithmical")); |
82 |
else
|
83 |
infoLayer.setStatusLeft(RasterToolsUtil.getText(this, "exponential")); |
84 |
infoLayer.setStatusRight("");
|
85 |
} |
86 |
} |
87 |
} |
88 |
|
89 |
/**
|
90 |
* Recalcula todos los puntos de la funcion
|
91 |
* Posibles rangos para perc:
|
92 |
* ( 0.0 a 1.0) - Funcion logaritmica con aproximacion al centro
|
93 |
* ( 1.0 a 2.0) - Funcion logaritmica con aproximacion al borde
|
94 |
* ( 0.0 a -1.0) - Funcion exponencial con aproximacion al centro
|
95 |
* (-1.0 a -2.0) - Funcion exponencial con aproximacion al borde
|
96 |
*
|
97 |
* @param perc
|
98 |
*/
|
99 |
private void recalcList(double perc) { |
100 |
double x, y;
|
101 |
|
102 |
setInfoPoint(new Double(perc)); |
103 |
|
104 |
if (perc > 2.0) perc = 2.0; |
105 |
if (perc < -2.0) perc = -2.0; |
106 |
|
107 |
this.listSquare.clear();
|
108 |
this.listSquare.add(new Square(0.0, 0.0)); |
109 |
do {
|
110 |
// Aproximacion al centro de una funcion logaritmica
|
111 |
if (perc >= 0 && perc <= 1.0) { |
112 |
for (int i = 1; i < num; i++) { |
113 |
x = i / num; |
114 |
y = Math.log10(1.0 + (i * 99.0 / num)) / 2.0; |
115 |
|
116 |
y = x + ((y - x) * perc); |
117 |
|
118 |
this.listSquare.add(new Square(x, y)); |
119 |
} |
120 |
break;
|
121 |
} |
122 |
// Aproximacion al borde de una funcion logaritmica
|
123 |
if (perc >= 1.0 && perc <= 2.0) { |
124 |
for (int i = 1; i < num; i++) { |
125 |
x = i / num; |
126 |
y = Math.log10(1.0 + (i * 99.0 / num)) / 2.0; |
127 |
|
128 |
y = y + ((1.0 - y) * (perc - 1.0)); |
129 |
|
130 |
this.listSquare.add(new Square(x, y)); |
131 |
} |
132 |
break;
|
133 |
} |
134 |
// Aproximacion al centro de una funcion exponencial
|
135 |
if (perc >= -1.0 && perc <= 0.0) { |
136 |
for (int i = 1; i < num; i++) { |
137 |
x = i / num; |
138 |
double b = 6.0; |
139 |
y = (Math.exp(((i - 1.0) / num) * b) - 1.0) / (Math.exp(b) - 1.0); |
140 |
|
141 |
y = x - ((x - y) * Math.abs(perc));
|
142 |
|
143 |
this.listSquare.add(new Square(x, y)); |
144 |
} |
145 |
break;
|
146 |
} |
147 |
// Aproximacion al borde de una funcion exponencial
|
148 |
if (perc >= -2.0 && perc <= -1.0) { |
149 |
for (int i = 1; i < num; i++) { |
150 |
x = i / num; |
151 |
double b = 6.0; |
152 |
y = (Math.exp(((i - 1.0) / num) * b) - 1.0) / (Math.exp(b) - 1.0); |
153 |
|
154 |
y = y * (1.0 - (Math.abs(perc) - 1.0)); |
155 |
|
156 |
this.listSquare.add(new Square(x, y)); |
157 |
} |
158 |
break;
|
159 |
} |
160 |
} while (false); |
161 |
this.listSquare.add(new Square(1.0, 1.0)); |
162 |
} |
163 |
|
164 |
/* (non-Javadoc)
|
165 |
* @see org.gvsig.raster.beans.canvas.layers.functions.StraightLine#mouseDragged(java.awt.event.MouseEvent)
|
166 |
*/
|
167 |
public boolean mouseDragged(MouseEvent e) { |
168 |
if (canvas.getCursor().getType() != Cursor.DEFAULT_CURSOR) |
169 |
return true; |
170 |
|
171 |
double x = pixelToValueX(e.getX());
|
172 |
double y = pixelToValueY(e.getY());
|
173 |
|
174 |
double perc = 0.0; |
175 |
|
176 |
// Localizamos el punto del raton para pasar un porcentaje correcto y que
|
177 |
// asi coincida la funcion con el raton
|
178 |
if (y >= x) {
|
179 |
double y2 = Math.log10(1.0 + (x * 99.0)) / 2.0; |
180 |
if (y < y2)
|
181 |
perc = (y - x) / (y2 - x); |
182 |
else
|
183 |
perc = ((y - y2) / (1.0 - y2)) + 1.0; |
184 |
} else {
|
185 |
double y2 = 1.0 - (Math.log10(1.0 + ((1.0 - x) * 99.0)) / 2.0); |
186 |
y2 = (Math.exp(x * 6.0) - 1.0) / (Math.exp(6.0) - 1.0); |
187 |
|
188 |
if (y > y2)
|
189 |
perc = -Math.abs((y - x) / (y2 - x));
|
190 |
else
|
191 |
perc = -Math.abs((y2 - y) / y2) - 1.0; |
192 |
} |
193 |
|
194 |
recalcList(perc); |
195 |
canvas.repaint(); |
196 |
canvas.callDataDragged("line", this); |
197 |
return false; |
198 |
} |
199 |
|
200 |
/* (non-Javadoc)
|
201 |
* @see org.gvsig.raster.beans.canvas.layers.functions.StraightLine#mouseMoved(java.awt.event.MouseEvent)
|
202 |
*/
|
203 |
public boolean mouseMoved(MouseEvent e) { |
204 |
return true; |
205 |
} |
206 |
|
207 |
/* (non-Javadoc)
|
208 |
* @see org.gvsig.raster.beans.canvas.layers.functions.StraightLine#mousePressed(java.awt.event.MouseEvent)
|
209 |
*/
|
210 |
public boolean mousePressed(MouseEvent e) { |
211 |
return mouseDragged(e);
|
212 |
} |
213 |
|
214 |
/* (non-Javadoc)
|
215 |
* @see org.gvsig.raster.beans.canvas.layers.functions.StraightLine#mouseReleased(java.awt.event.MouseEvent)
|
216 |
*/
|
217 |
public boolean mouseReleased(MouseEvent e) { |
218 |
setInfoPoint(null);
|
219 |
return true; |
220 |
} |
221 |
} |