gvsig-raster / org.gvsig.raster.cache / trunk / org.gvsig.raster.cache / org.gvsig.raster.cache.lib / org.gvsig.raster.cache.lib.impl / src / main / java / org / gvsig / raster / cache / tile / impl / buffer / RasterBuffer.java @ 454
History | View | Annotate | Download (5.9 KB)
1 | 387 | nbrodin | /* gvSIG. Geographic Information System of the Valencian Government
|
---|---|---|---|
2 | *
|
||
3 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
|
||
4 | * of the Valencian Government (CIT)
|
||
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., 51 Franklin Street, Fifth Floor, Boston,
|
||
19 | * MA 02110-1301, USA.
|
||
20 | *
|
||
21 | */
|
||
22 | package org.gvsig.raster.cache.tile.impl.buffer; |
||
23 | |||
24 | import java.awt.geom.Rectangle2D; |
||
25 | |||
26 | import org.gvsig.raster.cache.tile.buffer.TileBuffer; |
||
27 | |||
28 | /**
|
||
29 | * Rectangulo de pixeles. Para cada tipo de datos java hay un buffer distinto donde cada elemento es
|
||
30 | * accedido de la siguiente forma: [banda][fila][columna]
|
||
31 | * m[1][2][0] = cte;-> Sustituye el elemento de la fila 2 de la banda 1 columna 0
|
||
32 | * m[1][0] = array; -> Sustituye la fila 0 de la banda 1
|
||
33 | * m[0] = matriz cuadrada; -> Sustituye la banda entera.
|
||
34 | *
|
||
35 | */
|
||
36 | public abstract class RasterBuffer implements TileBuffer { |
||
37 | 454 | nbrodin | public double noDataValue = -99999;//Double.NaN;// |
38 | 387 | nbrodin | protected int width; |
39 | protected int height; |
||
40 | protected int nBands; |
||
41 | protected int dataType; |
||
42 | private Rectangle2D dataExtent = null; |
||
43 | |||
44 | /**
|
||
45 | * Valor con el que se rellena una banda no valida del buffer. Una banda no valida es la que
|
||
46 | * no tiene datos asignados y tampoco puede ser null. Todas las bandas no validas de un buffer
|
||
47 | * apuntan por referencia a la misma banda.
|
||
48 | */
|
||
49 | protected double notValidValue = 0D; |
||
50 | |||
51 | /**
|
||
52 | * Reserva de memoria para el rasterbuf
|
||
53 | * @param dataType Tipo de dato
|
||
54 | * @param width Ancho
|
||
55 | * @param height Alto
|
||
56 | * @param bandNr Numero de bandas
|
||
57 | * @param orig
|
||
58 | */
|
||
59 | public abstract void malloc(int dataType, int width, int height, int bandNr); |
||
60 | |||
61 | /*
|
||
62 | * (non-Javadoc)
|
||
63 | * @see org.gvsig.fmap.driver.Buffer#getWidth()
|
||
64 | */
|
||
65 | public int getWidth() { |
||
66 | return width;
|
||
67 | } |
||
68 | |||
69 | /**
|
||
70 | * Gets a bouding box of this buffer
|
||
71 | * @return
|
||
72 | */
|
||
73 | public Rectangle2D getDataExtent() { |
||
74 | return dataExtent;
|
||
75 | } |
||
76 | |||
77 | /**
|
||
78 | * Sets a bounding box of this buffer
|
||
79 | * @param r
|
||
80 | */
|
||
81 | public void setDataExtent(Rectangle2D r) { |
||
82 | this.dataExtent = r;
|
||
83 | } |
||
84 | |||
85 | /*
|
||
86 | * (non-Javadoc)
|
||
87 | * @see org.gvsig.fmap.driver.Buffer#getHeight()
|
||
88 | */
|
||
89 | public int getHeight() { |
||
90 | return height;
|
||
91 | } |
||
92 | |||
93 | /*
|
||
94 | * (non-Javadoc)
|
||
95 | * @see org.gvsig.fmap.driver.Buffer#getBandCount()
|
||
96 | */
|
||
97 | public int getBandCount() { |
||
98 | return nBands;
|
||
99 | } |
||
100 | |||
101 | /**
|
||
102 | * Obtiene el tipo de dato. Los tipos de dato posibles est?n definidos en IRaster.
|
||
103 | * @return tipo de datos
|
||
104 | */
|
||
105 | public int getDataType() { |
||
106 | return dataType;
|
||
107 | } |
||
108 | |||
109 | /**
|
||
110 | * Asigna el tipo de dato. Los tipos de dato posibles est?n definidos en IRaster.
|
||
111 | * @param dataType Tipo de dato del buffer
|
||
112 | */
|
||
113 | public void setDataType(int dataType) { |
||
114 | this.dataType = dataType;
|
||
115 | } |
||
116 | |||
117 | /**
|
||
118 | * Obtiene el tama?o del tipo de dato en bytes
|
||
119 | * @return Tipo de dato
|
||
120 | */
|
||
121 | public int getDataSize() { |
||
122 | if (dataType == TYPE_BYTE) {
|
||
123 | return 1; |
||
124 | } else if ((dataType == TYPE_SHORT) | (dataType == TYPE_USHORT)) { |
||
125 | return 2; |
||
126 | } else if (dataType == TYPE_INT) { |
||
127 | return 4; |
||
128 | }else if (dataType == TYPE_FLOAT) { |
||
129 | return 8; |
||
130 | }else if (dataType == TYPE_DOUBLE) { |
||
131 | return 16; |
||
132 | } |
||
133 | |||
134 | return 0; |
||
135 | } |
||
136 | |||
137 | /**
|
||
138 | * Obtiene el tama?o del buffer
|
||
139 | * @return tama?o del buffer
|
||
140 | */
|
||
141 | public long sizeof() { |
||
142 | return getDataSize() * width * height * nBands;
|
||
143 | } |
||
144 | |||
145 | |||
146 | /**
|
||
147 | * Convierte un tipo de dato a cadena
|
||
148 | * @param type Tipo de dato
|
||
149 | * @return cadena que representa el tipo de dato
|
||
150 | */
|
||
151 | public static String typesToString(int type) { |
||
152 | switch (type) {
|
||
153 | case RasterBuffer.TYPE_IMAGE:
|
||
154 | return new String("Image"); |
||
155 | |||
156 | case RasterBuffer.TYPE_BYTE:
|
||
157 | return new String("Byte"); |
||
158 | |||
159 | case RasterBuffer.TYPE_DOUBLE:
|
||
160 | return new String("Double"); |
||
161 | |||
162 | case RasterBuffer.TYPE_FLOAT:
|
||
163 | return new String("Float"); |
||
164 | |||
165 | case RasterBuffer.TYPE_INT:
|
||
166 | return new String("Integer"); |
||
167 | |||
168 | case RasterBuffer.TYPE_USHORT:
|
||
169 | case RasterBuffer.TYPE_SHORT:
|
||
170 | return new String("Short"); |
||
171 | } |
||
172 | |||
173 | return null; |
||
174 | } |
||
175 | |||
176 | /*
|
||
177 | * (non-Javadoc)
|
||
178 | * @see org.gvsig.raster.dataset.Buffer#isInside(int, int)
|
||
179 | */
|
||
180 | public boolean isInside(int x, int y) { |
||
181 | if (x < 0 || y < 0 || x >= getWidth() || y >= getHeight()) |
||
182 | return false; |
||
183 | return true; |
||
184 | } |
||
185 | |||
186 | /*
|
||
187 | * (non-Javadoc)
|
||
188 | * @see org.gvsig.fmap.driver.Buffer#getNoDataValue()
|
||
189 | */
|
||
190 | public double getNoDataValue() { |
||
191 | return noDataValue;
|
||
192 | } |
||
193 | |||
194 | /*
|
||
195 | * (non-Javadoc)
|
||
196 | * @see org.gvsig.fmap.driver.Buffer#getByteNoDataValue()
|
||
197 | */
|
||
198 | public byte getByteNoDataValue() { |
||
199 | return (byte)noDataValue; |
||
200 | } |
||
201 | |||
202 | /*
|
||
203 | * (non-Javadoc)
|
||
204 | * @see org.gvsig.fmap.driver.Buffer#getShortNoDataValue()
|
||
205 | */
|
||
206 | public short getShortNoDataValue(){ |
||
207 | return (short)noDataValue; |
||
208 | } |
||
209 | |||
210 | /*
|
||
211 | * (non-Javadoc)
|
||
212 | * @see org.gvsig.fmap.driver.Buffer#getIntNoDataValue()
|
||
213 | */
|
||
214 | public int getIntNoDataValue(){ |
||
215 | return (int)noDataValue; |
||
216 | } |
||
217 | |||
218 | /*
|
||
219 | * (non-Javadoc)
|
||
220 | * @see org.gvsig.fmap.driver.Buffer#getFloatNoDataValue()
|
||
221 | */
|
||
222 | public float getFloatNoDataValue(){ |
||
223 | return (float)noDataValue; |
||
224 | } |
||
225 | |||
226 | /*
|
||
227 | * (non-Javadoc)
|
||
228 | * @see org.gvsig.fmap.driver.Buffer#setNoDataValue(double)
|
||
229 | */
|
||
230 | public void setNoDataValue(double nd){ |
||
231 | noDataValue = nd; |
||
232 | } |
||
233 | |||
234 | /*
|
||
235 | * (non-Javadoc)
|
||
236 | * @see org.gvsig.fmap.driver.Buffer#getNotValidValue()
|
||
237 | */
|
||
238 | public double getNotValidValue(){ |
||
239 | return notValidValue;
|
||
240 | } |
||
241 | |||
242 | /*
|
||
243 | * (non-Javadoc)
|
||
244 | * @see org.gvsig.fmap.driver.Buffer#setNotValidValue(java.lang.Object)
|
||
245 | */
|
||
246 | public void setNotValidValue(double value){ |
||
247 | this.notValidValue = value;
|
||
248 | } |
||
249 | |||
250 | } |