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 |
/* 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 |
public double noDataValue = -99999;//Double.NaN;// |
| 38 |
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 |
} |