svn-gvsig-desktop / trunk / libraries / libRaster / src / org / gvsig / raster / grid / Grid.java @ 12066
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2006 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*/
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package org.gvsig.raster.grid; |
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import java.awt.image.DataBuffer; |
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import java.io.IOException; |
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import java.util.Arrays; |
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import org.gvsig.raster.buffer.BufferFactory; |
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import org.gvsig.raster.buffer.RasterBuffer; |
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import org.gvsig.raster.buffer.RasterBufferInvalidAccessException; |
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import org.gvsig.raster.buffer.RasterBufferInvalidException; |
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import org.gvsig.raster.dataset.IBuffer; |
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import org.gvsig.raster.dataset.MultiRasterDataset; |
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import org.gvsig.raster.dataset.properties.DatasetListTransparency; |
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import org.gvsig.raster.grid.filter.RasterFilterList; |
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/**
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* Clase que representa una rejilla de datos raster. Este tipo de grid tiene el interfaz necesario
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* de acceso a la informaci?n raster para aplicaciones de analisis raster. Contiene m?todos de acceso al
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* dato tanto en lectura como en escritura y encapsula operaciones entre grids. Adem?s contiene
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* objetos que contienen las caracter?sticas asociadas a ese grid. Sobre un grid pueden
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* aplicarse tambi?n operaciones de filtrado.
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*
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* Podemos crear un Grid de cinco formas distitas:
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* <UL>
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* <LI>A partir de una fuente de datos (cargada en el constructor). Se har? una petici?n del extent pasado por par?metro con las bandas seleccionadas por par?metro.</LI>
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* <LI>A partir de un extensi?n de capa, una extensi?n de vista, un tipo de dato y un n?mero de datos
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* crea un Grid vacio util para escritura.</LI>
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* <LI>A partir de una fuente de datos (cargados). Datasource se usa como buffer de datos cargados y se selecciona si queremos el reader interpolado.</LI>
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* <LI>A partir de una fuente de datos (cargada en el constructor). Se har? una petici?n del extent completo de la fuente con las bandas seleccionadas por par?metro.</LI>
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* <LI>A partir de una fuente de datos (cargada en el constructor). Se har? una petici?n del extent completo de la fuente con todas las bandas disponibles.</LI>
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* </UL>
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*
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* @author Victor Olaya (volaya@ya.com)
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class Grid implements IQueryableGrid, IWritableGrid{ |
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//TODO: ARQUITECTURA: Estos tipos de datos no deben ser necesarios. Existiendo IBuffer se tendr?an que usar esos Hay que convertir, antes de eliminarlos, el uso de estos a los de IBuffer
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public static final int RASTER_DATA_TYPE_FLOAT = DataBuffer.TYPE_FLOAT; |
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public static final int RASTER_DATA_TYPE_DOUBLE = DataBuffer.TYPE_DOUBLE; |
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public static final int RASTER_DATA_TYPE_INT = DataBuffer.TYPE_INT; |
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public static final int RASTER_DATA_TYPE_SHORT = DataBuffer.TYPE_SHORT; |
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public static final int RASTER_DATA_TYPE_BYTE = DataBuffer.TYPE_BYTE; |
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public final static double DEG_45_IN_RAD = Math.PI / 180. * 45.; |
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public final static double DEG_90_IN_RAD = Math.PI / 180. * 90.; |
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public final static double DEG_180_IN_RAD = Math.PI ; |
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public final static double DEG_270_IN_RAD = Math.PI / 180. * 270.; |
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public final static double DEG_360_IN_RAD = Math.PI * 2.; |
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/* neighbor's address*/ /* N NE E SE S SW W NW */ |
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private final static int m_iOffsetX []= { 0, 1, 1, 1, 0, -1, -1, -1}; |
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private final static int m_iOffsetY []= { 1, 1, 0, -1, -1, -1, 0, 1}; |
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private double m_dDist[]; |
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public double _2DX, _6DX, _DX_2, _4DX_2; |
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private int[] bands = null; |
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private int dataType = IBuffer.TYPE_UNDEFINED; |
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private RasterBuffer rasterBuf = null; |
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private GridReader reader = null; |
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private GridWriter writer = null; |
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private GridExtent windowExtent = null; |
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private GridExtent layerExtent = null; |
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private GridStatistic statistic = null; |
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private GridTransparency transparency = null; |
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private GridPalette[] palette = null; |
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private RasterFilterList filterList = null; |
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/**
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* Crea un grid a partir de un MultiRasterDataset. Usa el extent de la fuente de datos como
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* extent completo y el extent pasado como par?metro como extensi?n de ventana.
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*
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* Cuando se construye el reader se carga el buffer con la extensi?n definida en windowExtent
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* y las bandas especificadas en bands.
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*
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* @param MultiRasterDataset datasets que proporcionan los datos
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* @param bands n?mero de bandas requeridas
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* @param windowExtent Extensi?n de la ventana. Si este par?metro es null se usar? el
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* mismo que el de la capa.
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*/
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public Grid(MultiRasterDataset datasets, int[] bands, GridExtent windowExtent) |
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throws RasterBufferInvalidException{
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BufferFactory bFactory = new BufferFactory(datasets);
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layerExtent = new GridExtent(bFactory.getExtent(), bFactory.getXCellSize());
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dataType = bFactory.getDataType(); |
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this.bands = bands;
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if(windowExtent == null) |
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this.windowExtent = layerExtent;
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else
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this.windowExtent = windowExtent;
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rasterBuf = (RasterBuffer)bFactory.getRasterBuf(); |
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if (windowExtent.fitsIn(layerExtent))
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reader = new GridNotInterpolated(bFactory, layerExtent, windowExtent, bands);
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else
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reader = new GridInterpolated(bFactory, layerExtent, windowExtent, bands);
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writer = new GridWriter(layerExtent, dataType, rasterBuf);
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init(bFactory); |
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} |
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/**
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* Crea un grid vacio a partir de un extent y un tipo de datos. Se crea un buffer vacio en el
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* que puede escribirse a trav?s del writer. Los datos escritos pueden ser consultados con el
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* reader. No tiene una fuente de datos asociada ya que es un grid vacio basicamente para
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* escritura.
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* @param layerExtent Tama?o completo de la capa
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* @param windowExtent Ventana de datos.
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* @param dataType Tipo de datos del buffer
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* @param bands n?mero de bandas requeridas y orden de dibujado en el buffer
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*/
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public Grid(GridExtent layerExtent,
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GridExtent windowExtent, |
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int dataType,
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int[] bands) throws RasterBufferInvalidException{ |
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this.windowExtent = windowExtent;
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this.layerExtent = layerExtent;
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this.dataType = dataType;
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rasterBuf = RasterBuffer.getBuffer(dataType, layerExtent.getNX(), layerExtent.getNY(), bands.length, true);
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if (windowExtent.fitsIn(layerExtent))
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reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
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else
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reader = new GridInterpolated(rasterBuf, layerExtent, windowExtent, bands);
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writer = new GridWriter(layerExtent, dataType, rasterBuf);
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init(null);
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} |
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/**
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* Crea un grid a partir de un BufferFactory. El buffer debe estar cargado de datos y el extent
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* de este viene definido en el par?metro windowExtent.
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* @param dataSource Fuente de datos
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* @param windowExtent Extent de los datos cargados en dataSource
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* @param notInterp Si es true fuerza a que el reader sea sin interpolaci?n. Si es false decide si
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* el reader es interpolado o no a partir de los extents de capa y la ventana seleccionada.
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*/
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public Grid(BufferFactory dataSource, boolean notInterp) { |
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this.layerExtent = new GridExtent(dataSource.getExtent(), dataSource.getXCellSize()); |
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dataType = dataSource.getDataType(); |
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bands = dataSource.getDrawableBands(); |
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this.windowExtent = new GridExtent(dataSource.getDataExtent(), dataSource.getXCellSize()); |
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rasterBuf = (RasterBuffer)dataSource.getRasterBuf(); |
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if(notInterp) {
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reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
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} else {
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if (windowExtent.fitsIn(layerExtent))
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reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
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else
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reader = new GridInterpolated(rasterBuf, layerExtent, windowExtent, bands);
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} |
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writer = new GridWriter(layerExtent, dataType, rasterBuf);
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init(dataSource); |
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} |
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/**
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* Crea un grid a partir de un BufferFactory. Se har? una petici?n del extent completo de la fuente.
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* dataSource tiene asociada una fuente de datos pero se ignorar? si tiene el buffer lleno. La instanciaci?n
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* de GridNotInterpolated har? que se haga la petici?n para cargar raster completo.
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* @param dataSource Fuente de datos
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* @param bands n?mero de bandas requeridas y orden de dibujado en el buffer
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*/
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public Grid(BufferFactory dataSource, int[] bands) |
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throws RasterBufferInvalidException{
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//La petici?n es del raster completo
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windowExtent = layerExtent = new GridExtent(dataSource.getExtent(), dataSource.getXCellSize());
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dataType = dataSource.getDataType(); |
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this.bands = bands;
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reader = new GridNotInterpolated(dataSource, layerExtent, windowExtent, bands);
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rasterBuf = (RasterBuffer)dataSource.getRasterBuf(); |
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writer = new GridWriter(windowExtent, dataType, rasterBuf);
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init(dataSource); |
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} |
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/**
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* Crea un grid a partir de un BufferFactory. Se har? una petici?n del extent completo de la fuente.
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* dataSource tiene asociada una fuente de datos pero se ignorar? si tiene el buffer lleno. La instanciaci?n
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* de GridNotInterpolated har? que se haga la petici?n para cargar raster completo. El buffer se cargar?
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* con todas las bandas disponibles.
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* @param dataSource Fuente de datos
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*/
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public Grid(BufferFactory dataSource) throws RasterBufferInvalidException { |
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//La petici?n es del raster completo
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windowExtent = layerExtent = new GridExtent(dataSource.getExtent(), dataSource.getXCellSize());
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dataType = dataSource.getDataType(); |
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bands = new int[dataSource.getBandCount()]; |
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for(int i = 0; i < dataSource.getBandCount(); i ++) |
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bands[i] = i; |
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reader = new GridNotInterpolated(dataSource, layerExtent, windowExtent, bands);
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rasterBuf = (RasterBuffer)dataSource.getRasterBuf(); |
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writer = new GridWriter(windowExtent, dataType, rasterBuf);
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init(dataSource); |
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} |
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/**
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* Selecciona la forma de obtener datos con o sin interpolaci?n. Si pasamos el par?metro
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* false al aplicar un m?todo de consulta de datos este ser? aplicado sin interpolaci?n.
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* @param interpolation
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*/
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public void switchToInterpolationMethod(boolean interpolation){ |
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//GridExtent layer = new GridExtent(0, 0, rasterBuf.getWidth(), rasterBuf.getHeight(), 1);
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if(interpolation)
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reader = new GridInterpolated(rasterBuf, layerExtent, windowExtent, bands);
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else
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reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
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init(null);
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} |
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/**
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* Inicializaci?n de constantes
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*/
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private void init(BufferFactory ds) { |
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int i;
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double dCellSize = getCellSize();
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statistic = new GridStatistic(this); |
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if(ds == null) |
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transparency = new GridTransparency();
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else {
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DatasetListTransparency transp = ds.getMultiRasterDataset().getTransparencyFilesStatus(); |
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if(transp != null) |
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transparency = new GridTransparency(transp);
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this.palette = new GridPalette[ds.getPalettes().length]; |
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for(int iPal = 0; iPal < ds.getPalettes().length; iPal++) { |
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if(ds.getPalettes()[iPal] != null) |
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this.palette[iPal] = new GridPalette(ds.getPalettes()[iPal]); |
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} |
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} |
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filterList = new RasterFilterList();
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if(ds != null) { |
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filterList.addParam("IStatistics", ds.getMultiRasterDataset().getStatistics());
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filterList.addParam("MultiRasterDataset", ds.getMultiRasterDataset());
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//filterList.addParam("GridPalette", palette);
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} |
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filterList.setInitRasterBuf(rasterBuf); |
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m_dDist = new double[8]; |
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for (i = 0; i < 8; i++) { |
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m_dDist[i] = Math.sqrt ( m_iOffsetX[i] * dCellSize * m_iOffsetX[i] * dCellSize
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+ m_iOffsetY[i] * dCellSize * m_iOffsetY[i] * dCellSize ); |
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} |
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_2DX = dCellSize * 2.0;
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_6DX = dCellSize * 6.0;
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_DX_2 = dCellSize * dCellSize; |
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_4DX_2 = 4.0 * _DX_2;
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} |
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//************* Write Services *********************
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.grid.IWritableGrid#assign(byte)
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*/
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public void assign(byte value)throws RasterBufferInvalidAccessException{ |
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writer.assign(value); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.grid.IWritableGrid#assign(short)
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*/
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public void assign(short value)throws RasterBufferInvalidAccessException{ |
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writer.assign(value); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.grid.IWritableGrid#assign(int)
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*/
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public void assign(int value)throws RasterBufferInvalidAccessException{ |
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writer.assign(value); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.grid.IWritableGrid#assign(float)
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*/
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public void assign(float value)throws RasterBufferInvalidAccessException{ |
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writer.assign(value); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.grid.IWritableGrid#assign(double)
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*/
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public void assign(double value)throws RasterBufferInvalidAccessException{ |
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writer.assign(value); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.grid.IWritableGrid#assign(org.gvsig.fmap.dataaccess.BufferFactory)
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*/
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public void assign(BufferFactory dataSource)throws RasterBufferInvalidException, OutOfGridException{ |
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Grid window = new Grid(dataSource.getMultiRasterDataset(), bands, windowExtent);
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write(window); |
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writer.setNoDataValue(window.getNoDataValue()); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.grid.IWritableGrid#assign(org.gvsig.fmap.grid.Grid)
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*/
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public void assign(Grid driver)throws OutOfGridException{ |
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if (driver.getGridExtent().equals(layerExtent)){
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write(driver); |
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writer.setNoDataValue(driver.getNoDataValue()); |
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} |
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} |
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/**
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* Sobreescribe los datos del grid actual con los datos del grid pasado por par?metro
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* @param g Grid desde donde se obtienen los datos
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*/
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private void write(Grid g)throws OutOfGridException{ |
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try{
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switch(rasterBuf.getDataType()){
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case IBuffer.TYPE_BYTE: for (int x = 0; x < g.getNX(); x++){ |
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for (int y = 0; y < g.getNY(); y++){ |
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writer.setCellValue(x, y, g.getCellValueAsByte(x, y)); |
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} |
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} |
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break;
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case IBuffer.TYPE_SHORT:for (int x = 0; x < g.getNX(); x++){ |
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for (int y = 0; y < g.getNY(); y++){ |
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writer.setCellValue(x, y, g.getCellValueAsShort(x, y)); |
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} |
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} |
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break;
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case IBuffer.TYPE_INT: for (int x = 0; x < g.getNX(); x++){ |
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for (int y = 0; y < g.getNY(); y++){ |
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writer.setCellValue(x, y, g.getCellValueAsInt(x, y)); |
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} |
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} |
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break;
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case IBuffer.TYPE_FLOAT:for (int x = 0; x < g.getNX(); x++){ |
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for (int y = 0; y < g.getNY(); y++){ |
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writer.setCellValue(x, y, g.getCellValueAsFloat(x, y)); |
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} |
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} |
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break;
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case IBuffer.TYPE_DOUBLE:for (int x = 0; x < g.getNX(); x++){ |
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for (int y = 0; y < g.getNY(); y++){ |
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writer.setCellValue(x, y, g.getCellValueAsDouble(x, y)); |
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} |
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} |
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break;
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} |
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} catch (OutOfGridException e) {
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//No es probable que se salga fuera ya que el bucle se controla dentro de la misma funci?n
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//No hacemos nada para manejar la excepci?n
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e.printStackTrace(); |
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} catch (RasterBufferInvalidAccessException e1) {
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//No es probable que se salga fuera ya que el bucle se controla dentro de la misma funci?n
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//No hacemos nada para manejar la excepci?n
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e1.printStackTrace(); |
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} |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.grid.IWritableGrid#assignNoData()
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*/
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public void assignNoData(){ |
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try {
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switch(rasterBuf.getDataType()){
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case IBuffer.TYPE_BYTE: writer.assign((byte)rasterBuf.getNoDataValue());break; |
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case IBuffer.TYPE_SHORT: writer.assign((short)rasterBuf.getNoDataValue());break; |
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case IBuffer.TYPE_INT: writer.assign((int)rasterBuf.getNoDataValue());break; |
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case IBuffer.TYPE_FLOAT: writer.assign((float)rasterBuf.getNoDataValue());break; |
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case IBuffer.TYPE_DOUBLE: writer.assign((double)rasterBuf.getNoDataValue());break; |
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} |
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} catch (RasterBufferInvalidAccessException e) {
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//No hacemos nada. El tipo de dato al que se accede no es controlado por el usuario por lo
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//que no le mandamos la excepci?n hacia arriba.
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e.printStackTrace(); |
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} |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, byte)
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*/
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417 |
public void setCellValue(int x, int y, byte value)throws OutOfGridException{ |
418 |
writer.setCellValue(x, y, value); |
419 |
} |
420 |
|
421 |
/*
|
422 |
* (non-Javadoc)
|
423 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, short)
|
424 |
*/
|
425 |
public void setCellValue(int x, int y, short value)throws OutOfGridException{ |
426 |
writer.setCellValue(x, y, value); |
427 |
} |
428 |
|
429 |
/*
|
430 |
* (non-Javadoc)
|
431 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, int)
|
432 |
*/
|
433 |
public void setCellValue(int x, int y, int value)throws OutOfGridException{ |
434 |
writer.setCellValue(x, y, value); |
435 |
} |
436 |
|
437 |
/*
|
438 |
* (non-Javadoc)
|
439 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, float)
|
440 |
*/
|
441 |
public void setCellValue(int x, int y, float value)throws OutOfGridException{ |
442 |
writer.setCellValue(x, y, value); |
443 |
} |
444 |
|
445 |
/*
|
446 |
* (non-Javadoc)
|
447 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, double)
|
448 |
*/
|
449 |
public void setCellValue(int x, int y, double value)throws OutOfGridException{ |
450 |
writer.setCellValue(x, y, value); |
451 |
} |
452 |
|
453 |
/*
|
454 |
* (non-Javadoc)
|
455 |
* @see org.gvsig.fmap.grid.IWritableGrid#add(org.gvsig.fmap.grid.Grid)
|
456 |
*/
|
457 |
public void add(Grid g){ |
458 |
if (g.getGridExtent().equals(getGridExtent())){
|
459 |
boolean interp = (reader instanceof GridInterpolated); |
460 |
switchToInterpolationMethod(false);
|
461 |
try{
|
462 |
switch(rasterBuf.getDataType()){
|
463 |
case IBuffer.TYPE_BYTE: for (int x = 0; x < g.getNX(); x++){ |
464 |
for (int y = 0; y < g.getNY(); y++){ |
465 |
writer.setCellValue(x, y, reader.getCellValueAsByte(x, y) + g.getCellValueAsByte(x,y)); |
466 |
} |
467 |
} |
468 |
break;
|
469 |
case IBuffer.TYPE_SHORT:for (int x = 0; x < g.getNX(); x++){ |
470 |
for (int y = 0; y < g.getNY(); y++){ |
471 |
writer.setCellValue(x, y, reader.getCellValueAsShort(x, y) + g.getCellValueAsShort(x,y)); |
472 |
} |
473 |
} |
474 |
break;
|
475 |
case IBuffer.TYPE_INT: for (int x = 0; x < g.getNX(); x++){ |
476 |
for (int y = 0; y < g.getNY(); y++){ |
477 |
writer.setCellValue(x, y, reader.getCellValueAsInt(x, y) + g.getCellValueAsInt(x,y)); |
478 |
} |
479 |
} |
480 |
break;
|
481 |
case IBuffer.TYPE_FLOAT:for (int x = 0; x < g.getNX(); x++){ |
482 |
for (int y = 0; y < g.getNY(); y++){ |
483 |
writer.setCellValue(x, y, reader.getCellValueAsFloat(x, y) + g.getCellValueAsFloat(x,y)); |
484 |
} |
485 |
} |
486 |
break;
|
487 |
case IBuffer.TYPE_DOUBLE:for (int x = 0; x < g.getNX(); x++){ |
488 |
for (int y = 0; y < g.getNY(); y++){ |
489 |
writer.setCellValue(x, y, reader.getCellValueAsDouble(x, y) + g.getCellValueAsDouble(x,y)); |
490 |
} |
491 |
} |
492 |
break;
|
493 |
} |
494 |
} catch (OutOfGridException e) {
|
495 |
//No es probable que se salga fuera ya que el bucle se controla dentro de la misma funci?n
|
496 |
//No hacemos nada para manejar la excepci?n
|
497 |
e.printStackTrace(); |
498 |
} catch (RasterBufferInvalidAccessException e1) {
|
499 |
//No es probable que se salga fuera ya que el bucle se controla dentro de la misma funci?n
|
500 |
//No hacemos nada para manejar la excepci?n
|
501 |
e1.printStackTrace(); |
502 |
} |
503 |
//Restauramos el reader que hab?a
|
504 |
switchToInterpolationMethod(interp); |
505 |
} |
506 |
} |
507 |
|
508 |
/*
|
509 |
* (non-Javadoc)
|
510 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, byte)
|
511 |
*/
|
512 |
public void addToCellValue(int x, int y, byte value) |
513 |
throws OutOfGridException, RasterBufferInvalidAccessException{
|
514 |
writer.setCellValue(x, y, (byte)(reader.getCellValueAsByte(x, y) + value));
|
515 |
} |
516 |
|
517 |
/*
|
518 |
* (non-Javadoc)
|
519 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, short)
|
520 |
*/
|
521 |
public void addToCellValue(int x, int y, short value) |
522 |
throws OutOfGridException, RasterBufferInvalidAccessException{
|
523 |
writer.setCellValue(x, y, (short)(reader.getCellValueAsShort(x, y) + value));
|
524 |
} |
525 |
|
526 |
/*
|
527 |
* (non-Javadoc)
|
528 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, int)
|
529 |
*/
|
530 |
public void addToCellValue(int x, int y, int value) |
531 |
throws OutOfGridException, RasterBufferInvalidAccessException{
|
532 |
writer.setCellValue(x, y, (int)(reader.getCellValueAsInt(x, y) + value));
|
533 |
} |
534 |
|
535 |
/*
|
536 |
* (non-Javadoc)
|
537 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, float)
|
538 |
*/
|
539 |
public void addToCellValue(int x, int y, float value) |
540 |
throws OutOfGridException, RasterBufferInvalidAccessException{
|
541 |
writer.setCellValue(x, y, (float)(reader.getCellValueAsFloat(x, y) + value));
|
542 |
} |
543 |
|
544 |
/*
|
545 |
* (non-Javadoc)
|
546 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, double)
|
547 |
*/
|
548 |
public void addToCellValue(int x, int y, double value) |
549 |
throws OutOfGridException, RasterBufferInvalidAccessException{
|
550 |
writer.setCellValue(x, y, (double)(reader.getCellValueAsDouble(x, y) + value));
|
551 |
} |
552 |
|
553 |
/*
|
554 |
* (non-Javadoc)
|
555 |
* @see org.gvsig.fmap.grid.IWritableGrid#multiply(double)
|
556 |
*/
|
557 |
public void multiply(double value){ |
558 |
boolean interp = (reader instanceof GridInterpolated); |
559 |
switchToInterpolationMethod(false);
|
560 |
try{
|
561 |
switch(rasterBuf.getDataType()){
|
562 |
case IBuffer.TYPE_BYTE: for (int x = 0; x < getNX(); x++){ |
563 |
for (int y = 0; y < getNY(); y++) |
564 |
writer.setCellValue(x, y, (byte)(reader.getCellValueAsByte(x, y) * value));
|
565 |
} |
566 |
break;
|
567 |
case IBuffer.TYPE_SHORT:for (int x = 0; x < getNX(); x++){ |
568 |
for (int y = 0; y < getNY(); y++) |
569 |
writer.setCellValue(x, y, (short)(reader.getCellValueAsShort(x, y) * value));
|
570 |
} |
571 |
break;
|
572 |
case IBuffer.TYPE_INT: for (int x = 0; x < getNX(); x++){ |
573 |
for (int y = 0; y < getNY(); y++) |
574 |
writer.setCellValue(x, y, (int)(reader.getCellValueAsInt(x, y) * value));
|
575 |
} |
576 |
break;
|
577 |
case IBuffer.TYPE_FLOAT:for (int x = 0; x < getNX(); x++){ |
578 |
for (int y = 0; y < getNY(); y++) |
579 |
writer.setCellValue(x, y, (float)(reader.getCellValueAsFloat(x, y) * value));
|
580 |
} |
581 |
break;
|
582 |
case IBuffer.TYPE_DOUBLE:for (int x = 0; x < getNX(); x++){ |
583 |
for (int y = 0; y < getNY(); y++) |
584 |
writer.setCellValue(x, y, (double)(reader.getCellValueAsDouble(x, y) * value));
|
585 |
} |
586 |
break;
|
587 |
} |
588 |
} catch (OutOfGridException e) {
|
589 |
//No es probable que se salga fuera ya que el bucle se controla dentro de la misma funci?n
|
590 |
//No hacemos nada para manejar la excepci?n
|
591 |
e.printStackTrace(); |
592 |
} catch (RasterBufferInvalidAccessException e1) {
|
593 |
//No es probable que se salga fuera ya que el bucle se controla dentro de la misma funci?n
|
594 |
//No hacemos nada para manejar la excepci?n
|
595 |
e1.printStackTrace(); |
596 |
} |
597 |
//Restauramos el reader que hab?a
|
598 |
switchToInterpolationMethod(interp); |
599 |
} |
600 |
|
601 |
/*
|
602 |
* (non-Javadoc)
|
603 |
* @see org.gvsig.fmap.grid.IWritableGrid#setNoDataValue(double)
|
604 |
*/
|
605 |
public void setNoDataValue(double dNoDataValue){ |
606 |
writer.setNoDataValue((float) dNoDataValue);
|
607 |
} |
608 |
|
609 |
/*
|
610 |
* (non-Javadoc)
|
611 |
* @see org.gvsig.fmap.grid.IWritableGrid#setNoData(int, int)
|
612 |
*/
|
613 |
public void setNoData(int x, int y){ |
614 |
writer.setNoData(x,y); |
615 |
} |
616 |
|
617 |
public void ExportToArcViewASCIIFile(String sFilename){ |
618 |
try {
|
619 |
writer.ExportToArcViewASCIIFile(sFilename); |
620 |
} catch (NumberFormatException e) { |
621 |
e.printStackTrace(); |
622 |
} catch (IOException e) { |
623 |
e.printStackTrace(); |
624 |
} |
625 |
} |
626 |
|
627 |
//************* Query Services *********************
|
628 |
|
629 |
/*
|
630 |
* (non-Javadoc)
|
631 |
* @see org.gvsig.fmap.grid.IQueryableGrid#isNoDataValue(double)
|
632 |
*/
|
633 |
public boolean isNoDataValue(double noDataValue){ |
634 |
return (reader.getNoDataValue() == noDataValue);
|
635 |
} |
636 |
|
637 |
/*
|
638 |
* (non-Javadoc)
|
639 |
* @see org.gvsig.fmap.grid.IQueryableGrid#isInGrid(int, int)
|
640 |
*/
|
641 |
public boolean isInGrid(int x, int y){ |
642 |
return reader.isCellInGrid(x, y);
|
643 |
} |
644 |
|
645 |
/*
|
646 |
* (non-Javadoc)
|
647 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellSize()
|
648 |
*/
|
649 |
public double getCellSize() { |
650 |
return reader.getCellSize();
|
651 |
} |
652 |
|
653 |
/*
|
654 |
* (non-Javadoc)
|
655 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsByte(int, int)
|
656 |
*/
|
657 |
public byte getCellValueAsByte(int x, int y)throws RasterBufferInvalidAccessException { |
658 |
return reader.getCellValueAsByte(x, y);
|
659 |
} |
660 |
|
661 |
/*
|
662 |
* (non-Javadoc)
|
663 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsShort(int, int)
|
664 |
*/
|
665 |
public short getCellValueAsShort(int x, int y)throws RasterBufferInvalidAccessException { |
666 |
return (short) reader.getCellValueAsShort(x, y); |
667 |
} |
668 |
|
669 |
/*
|
670 |
* (non-Javadoc)
|
671 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsInt(int, int)
|
672 |
*/
|
673 |
public int getCellValueAsInt(int x, int y)throws RasterBufferInvalidAccessException { |
674 |
return (int) reader.getCellValueAsInt(x, y); |
675 |
} |
676 |
|
677 |
/*
|
678 |
* (non-Javadoc)
|
679 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsFloat(int, int)
|
680 |
*/
|
681 |
public float getCellValueAsFloat(int x, int y)throws RasterBufferInvalidAccessException { |
682 |
return reader.getCellValueAsFloat(x, y);
|
683 |
} |
684 |
|
685 |
/*
|
686 |
* (non-Javadoc)
|
687 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsDouble(int, int)
|
688 |
*/
|
689 |
public double getCellValueAsDouble(int x, int y)throws RasterBufferInvalidAccessException { |
690 |
return (double) reader.getCellValueAsDouble(x, y); |
691 |
} |
692 |
|
693 |
/*
|
694 |
* (non-Javadoc)
|
695 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNoDataValue()
|
696 |
*/
|
697 |
public double getNoDataValue(){ |
698 |
return (double) rasterBuf.getNoDataValue(); |
699 |
} |
700 |
|
701 |
/*
|
702 |
* (non-Javadoc)
|
703 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getMinValue()
|
704 |
*/
|
705 |
public double getMinValue(){ |
706 |
if (!statistic.isStatisticsCalculated())
|
707 |
try {
|
708 |
statistic.calculateStatistics(); |
709 |
} catch (RasterBufferInvalidAccessException e) {
|
710 |
//No se calculan las estad?sticas. No hacemos nada
|
711 |
e.printStackTrace(); |
712 |
} |
713 |
return statistic.getMin();
|
714 |
} |
715 |
|
716 |
/*
|
717 |
* (non-Javadoc)
|
718 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getMaxValue()
|
719 |
*/
|
720 |
public double getMaxValue(){ |
721 |
if (!statistic.isStatisticsCalculated())
|
722 |
try {
|
723 |
statistic.calculateStatistics(); |
724 |
} catch (RasterBufferInvalidAccessException e) {
|
725 |
//No se calculan las estad?sticas. No hacemos nada
|
726 |
e.printStackTrace(); |
727 |
} |
728 |
return statistic.getMax();
|
729 |
} |
730 |
|
731 |
/*
|
732 |
* (non-Javadoc)
|
733 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getMeanValue()
|
734 |
*/
|
735 |
public double getMeanValue(){ |
736 |
if (!statistic.isStatisticsCalculated())
|
737 |
try {
|
738 |
statistic.calculateStatistics(); |
739 |
} catch (RasterBufferInvalidAccessException e) {
|
740 |
//No se calculan las estad?sticas. No hacemos nada
|
741 |
e.printStackTrace(); |
742 |
} |
743 |
return statistic.getMean();
|
744 |
} |
745 |
|
746 |
/*
|
747 |
* (non-Javadoc)
|
748 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getVariance()
|
749 |
*/
|
750 |
public double getVariance(){ |
751 |
if (!statistic.isStatisticsCalculated())
|
752 |
try {
|
753 |
statistic.calculateStatistics(); |
754 |
} catch (RasterBufferInvalidAccessException e) {
|
755 |
//No se calculan las estad?sticas. No hacemos nada
|
756 |
e.printStackTrace(); |
757 |
} |
758 |
return statistic.getVariance();
|
759 |
} |
760 |
|
761 |
/*
|
762 |
* (non-Javadoc)
|
763 |
* @see org.gvsig.fmap.grid.IQueryableGrid#setInterpolationMethod(int)
|
764 |
*/
|
765 |
public void setInterpolationMethod(int iMethod){ |
766 |
if (reader instanceof GridInterpolated) |
767 |
((GridInterpolated) reader).setInterpolationMethod(iMethod); |
768 |
else{
|
769 |
this.switchToInterpolationMethod(true); |
770 |
((GridInterpolated) reader).setInterpolationMethod(iMethod); |
771 |
} |
772 |
} |
773 |
|
774 |
/*
|
775 |
* (non-Javadoc)
|
776 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNX()
|
777 |
*/
|
778 |
public int getNX(){ |
779 |
return reader.getNX();
|
780 |
} |
781 |
|
782 |
/*
|
783 |
* (non-Javadoc)
|
784 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNY()
|
785 |
*/
|
786 |
public int getNY(){ |
787 |
return reader.getNY();
|
788 |
} |
789 |
|
790 |
/*
|
791 |
* (non-Javadoc)
|
792 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getLayerNX()
|
793 |
*/
|
794 |
public int getLayerNX(){ |
795 |
return layerExtent.getNX();
|
796 |
} |
797 |
|
798 |
/*
|
799 |
* (non-Javadoc)
|
800 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getLayerNY()
|
801 |
*/
|
802 |
public int getLayerNY(){ |
803 |
return layerExtent.getNY();
|
804 |
} |
805 |
|
806 |
/*
|
807 |
* (non-Javadoc)
|
808 |
* @see org.gvsig.fmap.grid.IWritableGrid#getGridExtent()
|
809 |
*/
|
810 |
/*public GridExtent getGridExtent(){
|
811 |
return windowExtent;
|
812 |
}*/
|
813 |
|
814 |
public int getDataType(){ |
815 |
return dataType;
|
816 |
} |
817 |
|
818 |
private boolean getSubMatrix3x3(int x, int y, double SubMatrix[])throws RasterBufferInvalidAccessException{ |
819 |
int i;
|
820 |
int iDir;
|
821 |
double z, z2;
|
822 |
|
823 |
z = getCellValueAsDouble(x, y); |
824 |
|
825 |
if(isNoDataValue(z)){
|
826 |
return false; |
827 |
} |
828 |
else{
|
829 |
//SubMatrix[4] = 0.0;
|
830 |
for(i=0; i<4; i++){ |
831 |
|
832 |
iDir = 2 * i;
|
833 |
z2 = getCellValueAsDouble(x + m_iOffsetX[iDir], y + m_iOffsetY[iDir]); |
834 |
if( !isNoDataValue(z2)){
|
835 |
SubMatrix[i] = z2 - z; |
836 |
} |
837 |
else{
|
838 |
z2 = getCellValueAsDouble(x + m_iOffsetX[(iDir + 4) % 8], y + m_iOffsetY[(iDir + 4) % 8]); |
839 |
if( !isNoDataValue(z2)){
|
840 |
SubMatrix[i] = z - z2; |
841 |
} |
842 |
else{
|
843 |
SubMatrix[i] = 0.0;
|
844 |
} |
845 |
} |
846 |
} |
847 |
|
848 |
return true; |
849 |
} |
850 |
} |
851 |
|
852 |
public double getSlope(int x, int y)throws RasterBufferInvalidAccessException{ |
853 |
double zm[], G, H; |
854 |
|
855 |
zm = new double[4]; |
856 |
|
857 |
if( getSubMatrix3x3(x, y, zm) ){
|
858 |
G = (zm[0] - zm[2]) / _2DX; |
859 |
H = (zm[1] - zm[3]) / _2DX; |
860 |
return Math.atan(Math.sqrt(G*G + H*H)); |
861 |
} |
862 |
else{
|
863 |
return rasterBuf.getNoDataValue();
|
864 |
} |
865 |
} |
866 |
|
867 |
public double getAspect(int x, int y)throws RasterBufferInvalidAccessException{ |
868 |
double zm[], G, H, dAspect; |
869 |
|
870 |
zm = new double[4]; |
871 |
|
872 |
if( getSubMatrix3x3(x, y, zm) ){
|
873 |
G = (zm[0] - zm[2]) / _2DX; |
874 |
H = (zm[1] - zm[3]) / _2DX; |
875 |
if( G != 0.0 ) |
876 |
dAspect = DEG_180_IN_RAD + Math.atan2(H, G);
|
877 |
else
|
878 |
dAspect = H > 0.0 ? DEG_270_IN_RAD : (H < 0.0 ? DEG_90_IN_RAD : -1.0); |
879 |
return dAspect;
|
880 |
} |
881 |
else
|
882 |
return rasterBuf.getNoDataValue();
|
883 |
} |
884 |
|
885 |
public static int getXOffsetInDir(int iDir){ |
886 |
return m_iOffsetX[iDir];
|
887 |
} |
888 |
|
889 |
public static int getYOffsetInDir(int iDir){ |
890 |
return m_iOffsetY[iDir];
|
891 |
} |
892 |
|
893 |
public double getDistToNeighborInDir(int iDir){ |
894 |
return m_dDist[iDir];
|
895 |
} |
896 |
|
897 |
public static double getUnitDistToNeighborInDir(int iDir){ |
898 |
return( (iDir % 2 != 0) ? Math.sqrt(2.0) : 1.0 ); |
899 |
} |
900 |
|
901 |
/*
|
902 |
* (non-Javadoc)
|
903 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getDirToNextDownslopeCell(int, int)
|
904 |
*/
|
905 |
public int getDirToNextDownslopeCell(int x, int y)throws RasterBufferInvalidAccessException{ |
906 |
return getDirToNextDownslopeCell(x, y, true); |
907 |
} |
908 |
|
909 |
/*
|
910 |
* (non-Javadoc)
|
911 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getDirToNextDownslopeCell(int, int, boolean)
|
912 |
*/
|
913 |
public int getDirToNextDownslopeCell(int x, int y, boolean bForceDirToNoDataCell) |
914 |
throws RasterBufferInvalidAccessException{
|
915 |
|
916 |
int i, iDir;
|
917 |
double z, z2, dSlope, dMaxSlope;
|
918 |
|
919 |
z = getCellValueAsDouble(x, y); |
920 |
|
921 |
if(isNoDataValue(z)){
|
922 |
return -1; |
923 |
} |
924 |
|
925 |
dMaxSlope = 0.0;
|
926 |
for(iDir=-1, i=0; i<8; i++){ |
927 |
z2 = getCellValueAsDouble(x + m_iOffsetX[i], y + m_iOffsetY[i]); |
928 |
if(isNoDataValue(z2)){
|
929 |
if (bForceDirToNoDataCell){
|
930 |
return i;
|
931 |
} |
932 |
else{
|
933 |
return -1; |
934 |
} |
935 |
} |
936 |
else{
|
937 |
dSlope = (z - z2) / getDistToNeighborInDir(i); |
938 |
if( dSlope > dMaxSlope ){
|
939 |
iDir = i; |
940 |
dMaxSlope = dSlope; |
941 |
} |
942 |
} |
943 |
} |
944 |
|
945 |
return iDir;
|
946 |
|
947 |
} |
948 |
|
949 |
public GridCell[] getSortedArrayOfCells()throws RasterBufferInvalidAccessException{ |
950 |
int i;
|
951 |
int iX,iY;
|
952 |
int iNX = getNX();
|
953 |
int iCells = getNX() * getNY();
|
954 |
GridCell [] cells = null; |
955 |
GridCell cell = null;
|
956 |
|
957 |
cells = new GridCell[iCells];
|
958 |
|
959 |
for (i = 0; i < iCells; i++){ |
960 |
iX = i % iNX; |
961 |
iY = i / iNX; |
962 |
switch(getDataType()){
|
963 |
case IBuffer.TYPE_BYTE: cell = new GridCell(iX, iY, getCellValueAsByte(iX, iY)); break; |
964 |
case IBuffer.TYPE_SHORT: cell = new GridCell(iX, iY, getCellValueAsShort(iX, iY)); break; |
965 |
case IBuffer.TYPE_INT: cell = new GridCell(iX, iY, getCellValueAsInt(iX, iY)); break; |
966 |
case IBuffer.TYPE_FLOAT: cell = new GridCell(iX, iY, getCellValueAsFloat(iX, iY)); break; |
967 |
case IBuffer.TYPE_DOUBLE: cell = new GridCell(iX, iY, getCellValueAsDouble(iX, iY)); break; |
968 |
} |
969 |
|
970 |
cells[i] = cell; |
971 |
} |
972 |
|
973 |
Arrays.sort(cells);
|
974 |
|
975 |
return cells;
|
976 |
} |
977 |
|
978 |
/**
|
979 |
* Obtiene el estado de transparencia
|
980 |
* @return Objeto con el estado de transparencia del grid
|
981 |
*/
|
982 |
public GridTransparency getTransparency() {
|
983 |
return transparency;
|
984 |
} |
985 |
|
986 |
/**
|
987 |
* Asigna el estado de transparencia
|
988 |
* @param Objeto con el estado de transparencia del grid
|
989 |
*/
|
990 |
public void setTransparency(GridTransparency transparency) { |
991 |
this.transparency = transparency;
|
992 |
} |
993 |
|
994 |
/**
|
995 |
* Obtiene la paleta para el caso de un MDT. Esta funci?n evita el tener que obtener
|
996 |
* un array de paletas y buscar en el cuando se trata de un caso simple de MDT de una
|
997 |
* sola banda. Comprueba que se trata de un raster monobanda con paleta asociada antes
|
998 |
* de devolverla.
|
999 |
* @return GridPalette asociada al Grid
|
1000 |
*/
|
1001 |
public GridPalette getMDTPalette(){
|
1002 |
if( rasterBuf != null && |
1003 |
rasterBuf.getBandCount() == 1 &&
|
1004 |
palette != null)
|
1005 |
return palette[0]; |
1006 |
return null; |
1007 |
} |
1008 |
|
1009 |
/**
|
1010 |
* Obtiene la lista de paletas asociadas al grid
|
1011 |
* @return Lista de objetos GridPalette
|
1012 |
*/
|
1013 |
public GridPalette[] getPalettes() { |
1014 |
return palette;
|
1015 |
} |
1016 |
|
1017 |
/**
|
1018 |
* Obtiene el n?mero de bandas del grid o 0 si no tiene buffer de
|
1019 |
* datos asociado.
|
1020 |
* @return N?mero de bandas
|
1021 |
*/
|
1022 |
public int getBandCount() { |
1023 |
if(rasterBuf != null) |
1024 |
return rasterBuf.getBandCount();
|
1025 |
return 0; |
1026 |
} |
1027 |
|
1028 |
/**
|
1029 |
* Asigna la lista de paletas asociadas al grid
|
1030 |
* @param palette Lista de objetos GridPalette
|
1031 |
*/
|
1032 |
public void setPalettes(GridPalette[] palette) { |
1033 |
this.palette = palette;
|
1034 |
} |
1035 |
|
1036 |
/**
|
1037 |
* Obtiene la lista de filtros.
|
1038 |
* @return Lista de filtros.
|
1039 |
*/
|
1040 |
public RasterFilterList getFilterList(){
|
1041 |
return filterList;
|
1042 |
} |
1043 |
|
1044 |
/**
|
1045 |
* Asigna la lista de filtros
|
1046 |
* @param filterList
|
1047 |
*/
|
1048 |
public void setFilterList(RasterFilterList filterList){ |
1049 |
this.filterList = filterList;
|
1050 |
} |
1051 |
|
1052 |
/**
|
1053 |
*Aplica la lista de filtros sobre el buffer
|
1054 |
*/
|
1055 |
public void applyFilters(){ |
1056 |
if(filterList == null) |
1057 |
return;
|
1058 |
filterList.setInitRasterBuf(rasterBuf); |
1059 |
filterList.execute(); |
1060 |
rasterBuf = (RasterBuffer)filterList.getResult(); |
1061 |
dataType = rasterBuf.getDataType(); |
1062 |
} |
1063 |
|
1064 |
/**
|
1065 |
* Obtiene el buffer de datos del grid
|
1066 |
* @return RasterBuf
|
1067 |
*/
|
1068 |
public IBuffer getRasterBuf() {
|
1069 |
return rasterBuf;
|
1070 |
} |
1071 |
|
1072 |
/**
|
1073 |
* Asigna la banda sobre la que se realizan las operaciones. Por defecto es la banda 0
|
1074 |
* con lo que para el uso de MDTs no habr? que modificar este valor.
|
1075 |
* @param band Banda sobre la que se realizan las operaciones.
|
1076 |
*/
|
1077 |
public void setBandToOperate(int band){ |
1078 |
if(writer != null) |
1079 |
writer.setBandToOperate(band); |
1080 |
if(reader != null) |
1081 |
reader.setBandToOperate(band); |
1082 |
if(statistic != null) |
1083 |
statistic.setBandToOperate(band); |
1084 |
} |
1085 |
|
1086 |
/**
|
1087 |
* Obtiene el extent de la ventana seleccionada para petici?n de datos
|
1088 |
* @return GridExtent
|
1089 |
*/
|
1090 |
public GridExtent getWindowExtent(){
|
1091 |
return windowExtent;
|
1092 |
} |
1093 |
|
1094 |
/**
|
1095 |
* Obtiene el extent del grid para petici?n de datos
|
1096 |
* @return GridExtent
|
1097 |
*/
|
1098 |
public GridExtent getGridExtent(){
|
1099 |
return layerExtent;
|
1100 |
} |
1101 |
} |