svn-gvsig-desktop / trunk / libraries / libRaster / src-test / org / gvsig / raster / grid / TGReadingFullDatasourceSelectingBands.java @ 10768
History | View | Annotate | Download (6 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.grid; |
20 |
|
21 |
import junit.framework.TestCase; |
22 |
|
23 |
import org.gvsig.raster.dataaccess.DataSource; |
24 |
import org.gvsig.raster.dataaccess.buffer.RasterBufferInvalidAccessException; |
25 |
import org.gvsig.raster.dataaccess.buffer.RasterBufferInvalidException; |
26 |
import org.gvsig.raster.driver.NotSupportedExtensionException; |
27 |
import org.gvsig.raster.driver.RasterDataset; |
28 |
import org.gvsig.raster.driver.RasterDriverException; |
29 |
import org.gvsig.raster.grid.Grid; |
30 |
import org.gvsig.raster.grid.OutOfGridException; |
31 |
import org.gvsig.raster.shared.RasterLibrary; |
32 |
|
33 |
/**
|
34 |
* Este test prueba el acceso a datos a traves de un grid.
|
35 |
* A partir de una fuente de datos (cargada en el constructor del Grid).
|
36 |
* 1-F32 Monobanda: Se har? una petici?n del extent completo de la fuente seleccionando tres bandas.
|
37 |
* 2-Comprobamos el tipo de datos el ancho y el alto
|
38 |
* 3-Modifica algunos valores del grid y se comprueba que las modificaciones han sido efectivas.
|
39 |
* 4-Cambiamos la banda a operar y obtenemos un dato comprobando que tiene que devolver NoData
|
40 |
*
|
41 |
* 1-RGB: Se har? una petici?n del extent completo de la fuente seleccionando tres bandas.
|
42 |
* 2-Comprobamos el tipo de datos el ancho y el alto
|
43 |
* 3-Modifica algunos valores del grid y se comprueba que las modificaciones han sido efectivas.
|
44 |
* 4-Cambiamos la banda a operar y obtenemos un dato comprobando que el valor que devuelve es correcto
|
45 |
* 5 -Comprobamos que si nos salimos devuelve un NoData
|
46 |
*
|
47 |
* @author Nacho Brodin (nachobrodin@gmail.com)
|
48 |
*
|
49 |
*/
|
50 |
public class TGReadingFullDatasourceSelectingBands extends TestCase{ |
51 |
|
52 |
private String baseDir = "./test-images/"; |
53 |
private String path1 = baseDir + "miniRaster28x25F32.tif"; |
54 |
private String path2 = baseDir + "miniRaster25x24.tif"; |
55 |
private RasterDataset f1 = null; |
56 |
private RasterDataset f2 = null; |
57 |
private DataSource ds1 = null; |
58 |
private DataSource ds2 = null; |
59 |
|
60 |
static{
|
61 |
RasterLibrary.wakeUp(); |
62 |
} |
63 |
|
64 |
public void start(){ |
65 |
this.setUp();
|
66 |
this.testStack();
|
67 |
} |
68 |
|
69 |
public void setUp() { |
70 |
System.err.println("TGReadingFullDatasourceSelectingBands running..."); |
71 |
try {
|
72 |
f1 = RasterDataset.openFile(null, path1);
|
73 |
f2 = RasterDataset.openFile(null, path2);
|
74 |
} catch (NotSupportedExtensionException e) {
|
75 |
e.printStackTrace(); |
76 |
} catch (RasterDriverException e) {
|
77 |
e.printStackTrace(); |
78 |
} |
79 |
ds1 = new DataSource(f1); |
80 |
ds2 = new DataSource(f2); |
81 |
} |
82 |
|
83 |
public void testStack(){ |
84 |
int[] drawableBands = {0, 1, 2}; |
85 |
try {
|
86 |
Grid g = new Grid(ds1, drawableBands);
|
87 |
assertEquals(g.getDataType(), 4); //Tipo float |
88 |
assertEquals(g.getNY(), 25); //Alto |
89 |
assertEquals(g.getNX(), 28); //Ancho |
90 |
|
91 |
testCellBufferFloat(g, 0);
|
92 |
g.setCellValue(0, 0, (float)31.22); |
93 |
g.setCellValue(2, 2, (float)31.22); |
94 |
g.setCellValue(3, 8, (float)31.22); |
95 |
g.setCellValue(10, 15, (float)31.22); |
96 |
testCellBufferFloat(g, 0);
|
97 |
assertEquals((int)g.getCellValueAsFloat(0, 0), 31); |
98 |
assertEquals((int)g.getCellValueAsFloat(2, 2), 31); |
99 |
assertEquals((int)g.getCellValueAsFloat(3, 8), 31); |
100 |
assertEquals((int)g.getCellValueAsFloat(10, 15), 31); |
101 |
g.setBandToOperate(2);
|
102 |
assertEquals((int)g.getCellValueAsFloat(10, 10), -99999); |
103 |
|
104 |
g = new Grid(ds2, drawableBands);
|
105 |
assertEquals(g.getDataType(), 0); //Tipo byte |
106 |
assertEquals(g.getNY(), 24); //Alto |
107 |
assertEquals(g.getNX(), 25); //Ancho |
108 |
testCellBufferByte(g, 0);
|
109 |
g.setCellValue(0, 0, (byte)31); |
110 |
g.setCellValue(2, 2, (byte)31); |
111 |
g.setCellValue(3, 8, (byte)31); |
112 |
g.setCellValue(10, 15, (byte)31); |
113 |
testCellBufferByte(g, 0);
|
114 |
assertEquals(g.getCellValueAsByte(0, 0), 31); |
115 |
assertEquals(g.getCellValueAsByte(2, 2), 31); |
116 |
assertEquals(g.getCellValueAsByte(3, 8), 31); |
117 |
assertEquals(g.getCellValueAsByte(10, 15), 31); |
118 |
g.setBandToOperate(2);
|
119 |
assertEquals((int)g.getCellValueAsByte(10, 15), 107); |
120 |
|
121 |
//Comprobamos que si nos salimos devuelve un NoData
|
122 |
assertEquals((int)g.getCellValueAsFloat(100, 100), -99999); |
123 |
assertEquals((int)g.getCellValueAsFloat(-1, 10), -99999); |
124 |
assertEquals((int)g.getCellValueAsFloat(1000, 2310), -99999); |
125 |
|
126 |
} catch (RasterBufferInvalidException e1) {
|
127 |
e1.printStackTrace(); |
128 |
} catch (RasterBufferInvalidAccessException e2) {
|
129 |
e2.printStackTrace(); |
130 |
} catch (OutOfGridException e3) {
|
131 |
e3.printStackTrace(); |
132 |
} |
133 |
} |
134 |
|
135 |
/**
|
136 |
* Compara todos los elementos del buffer con los del grid para comprobar
|
137 |
* la correcci?n de la lectura.
|
138 |
* @param g
|
139 |
* @throws RasterBufferInvalidAccessException
|
140 |
*/
|
141 |
private void testCellBufferFloat(Grid g, int band) throws RasterBufferInvalidAccessException{ |
142 |
int nCols = f1.getWidth();
|
143 |
int nRows = f1.getHeight();
|
144 |
for(int i = 0; i < nRows; i ++){ |
145 |
for(int j = 0; j < nCols; j ++) |
146 |
assertEquals((int)g.getCellValueAsFloat(j, i), (int)ds1.getRasterBuf().getElemFloat(i, j, band)); |
147 |
} |
148 |
} |
149 |
|
150 |
/**
|
151 |
* Compara todos los elementos del buffer con los del grid para comprobar
|
152 |
* la correcci?n de la lectura.
|
153 |
* @param g
|
154 |
* @throws RasterBufferInvalidAccessException
|
155 |
*/
|
156 |
private void testCellBufferByte(Grid g, int band) throws RasterBufferInvalidAccessException{ |
157 |
int nCols = f2.getWidth();
|
158 |
int nRows = f2.getHeight();
|
159 |
for(int i = 0; i < nRows; i ++){ |
160 |
for(int j = 0; j < nCols; j ++) |
161 |
assertEquals((int)g.getCellValueAsByte(j, i), (int)ds2.getRasterBuf().getElemByte(i, j, band)); |
162 |
} |
163 |
} |
164 |
} |