gvsig-raster / org.gvsig.raster / trunk / org.gvsig.raster / org.gvsig.raster.lib / org.gvsig.raster.lib.impl / src / main / java / org / gvsig / raster / impl / grid / GridImpl.java @ 1315
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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package org.gvsig.raster.impl.grid; |
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import java.util.Arrays; |
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import org.gvsig.fmap.dal.coverage.RasterLibrary; |
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import org.gvsig.fmap.dal.coverage.dataset.Buffer; |
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import org.gvsig.fmap.dal.coverage.datastruct.Extent; |
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import org.gvsig.fmap.dal.coverage.datastruct.GridCell; |
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import org.gvsig.fmap.dal.coverage.datastruct.GridExtent; |
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import org.gvsig.fmap.dal.coverage.datastruct.NoData; |
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import org.gvsig.fmap.dal.coverage.exception.GridException; |
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import org.gvsig.fmap.dal.coverage.exception.OutOfGridException; |
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import org.gvsig.fmap.dal.coverage.exception.ProcessInterruptedException; |
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import org.gvsig.fmap.dal.coverage.exception.RasterBufferInvalidAccessException; |
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import org.gvsig.fmap.dal.coverage.exception.RasterBufferInvalidException; |
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import org.gvsig.fmap.dal.coverage.grid.Grid; |
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import org.gvsig.fmap.dal.coverage.grid.RasterFilterList; |
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import org.gvsig.fmap.dal.coverage.store.RasterDataStore; |
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import org.gvsig.fmap.dal.coverage.store.props.BasicStats; |
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import org.gvsig.fmap.dal.coverage.store.props.ColorTable; |
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import org.gvsig.fmap.dal.coverage.store.props.Transparency; |
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import org.gvsig.raster.impl.DefaultRasterManager; |
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import org.gvsig.raster.impl.buffer.RasterBuffer; |
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import org.gvsig.raster.impl.datastruct.ExtentImpl; |
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import org.gvsig.raster.impl.grid.filter.DefaultRasterFilterList; |
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import org.gvsig.raster.impl.store.QueryableRaster; |
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import org.gvsig.raster.impl.store.properties.DataStoreColorTable; |
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import org.gvsig.raster.impl.store.properties.DataStoreTransparency; |
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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 GridImpl implements Grid { |
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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 = Buffer.TYPE_UNDEFINED; |
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private Buffer 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 ColorTable 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 IRasterDataSource 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 GridImpl(RasterDataStore datasource, int[] bands, GridExtent windowExtent) |
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throws RasterBufferInvalidException {
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double cellSize[] = calcCellSize(datasource, |
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datasource.getWidth(), |
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datasource.getHeight()); |
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layerExtent = new GridExtentImpl(datasource.getExtent(),
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cellSize[0],
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cellSize[1]);
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if(datasource.getDataType() != null) |
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dataType = datasource.getDataType()[0];
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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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if (this.windowExtent.fitsIn(layerExtent)) |
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reader = new GridNotInterpolated(datasource, layerExtent, this.windowExtent, bands); |
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else
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reader = new GridInterpolated(datasource, layerExtent, this.windowExtent, bands); |
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rasterBuf = datasource.getLastBuffer(); |
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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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* Carga el buffer de datos desde el reader para poder escribir sobre los datos de
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* la ventana original. Esto es ?til cuando el GridWriter se crea asociado a un raster
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* pero el buffer est? vacio, por ejemplo en el caso de crear un GridInterpolated. Un
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* GridInterpolated no carga ning?n buffer en memoria sino que accede a los datos en disco
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* a medida que se le van solicitando. Por ello, no es posible modificarlos sino cargamos
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* un buffer con los datos previamente.
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*/
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public void loadWriterData() throws GridException { |
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rasterBuf = DefaultRasterManager.getInstance().createBuffer(dataType, reader.getNX(), reader.getNY(), bands.length, true);
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writer = new GridWriter(windowExtent, dataType, rasterBuf);
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int x = 0, y = 0; |
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try{
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switch(rasterBuf.getDataType()) {
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case Buffer.TYPE_BYTE: for (x = 0; x < getNX(); x++) |
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for (y = 0; y < getNY(); y++) |
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writer.setCellValue(x, y, (reader.getCellValueAsByte(x, y))); |
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break;
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case Buffer.TYPE_SHORT:for (x = 0; x < getNX(); x++) |
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for (y = 0; y < getNY(); y++) |
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writer.setCellValue(x, y, (reader.getCellValueAsShort(x, y))); |
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break;
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case Buffer.TYPE_INT: for (x = 0; x < getNX(); x++) |
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for (y = 0; y < getNY(); y++) |
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writer.setCellValue(x, y, (reader.getCellValueAsInt(x, y))); |
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break;
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case Buffer.TYPE_FLOAT:for (x = 0; x < getNX(); x++) |
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for (y = 0; y < getNY(); y++) |
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writer.setCellValue(x, y, (reader.getCellValueAsFloat(x, y))); |
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break;
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case Buffer.TYPE_DOUBLE:for (x = 0; x < getNX(); x++) |
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for (y = 0; y < getNY(); y++) |
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writer.setCellValue(x, y, (reader.getCellValueAsDouble(x, y))); |
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break;
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} |
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} catch (RasterBufferInvalidException e) {
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throw new GridException("Buffer de datos no v?lido " + x + " " + y, e); |
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} catch (OutOfGridException e1) {
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throw new GridException("Acceso fuera de los l?mites del Grid " + x + " " + y, e1); |
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} catch (RasterBufferInvalidAccessException e) {
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throw new GridException("Acceso al grid no v?lido " + x + " " + y, e); |
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} |
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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 GridImpl(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 = DefaultRasterManager.getInstance().createBuffer(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 bufferFactory Fuente de datos
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* @param windowExtent Extent de los datos cargados en bufferFactory
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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 GridImpl(Buffer buf, RasterDataStore datasource, boolean notInterp) { |
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double cellSize[] = calcCellSize(datasource, |
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datasource.getWidth(), |
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datasource.getHeight()); |
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this.layerExtent = new GridExtentImpl(datasource.getExtent(), |
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cellSize[0],
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cellSize[1]);
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if(datasource.getDataType() != null) |
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dataType = datasource.getDataType()[0];
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if(datasource instanceof QueryableRaster) |
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bands = ((QueryableRaster)datasource).getDrawableBands(); |
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else {
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bands = new int[datasource.getBandCount()]; |
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for (int i = 0; i < bands.length; i++) |
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bands[i] = i; |
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} |
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this.windowExtent = new GridExtentImpl( new ExtentImpl(buf.getDataExtent()), |
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cellSize[0],
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cellSize[1]);
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rasterBuf = buf; |
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if(notInterp)
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reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
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else 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(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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* bufferFactory 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 bufferFactory 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 GridImpl(RasterDataStore datasource, int[] bands) |
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throws RasterBufferInvalidException{
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//La petici?n es del raster completo
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double cellSize[] = calcCellSize(datasource, |
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datasource.getWidth(), |
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datasource.getHeight()); |
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windowExtent = layerExtent = new GridExtentImpl(datasource.getExtent(),
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cellSize[0],
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cellSize[1]);
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if(datasource.getDataType() != null) |
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dataType = datasource.getDataType()[0];
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this.bands = bands;
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reader = new GridNotInterpolated(datasource, layerExtent, windowExtent, bands);
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rasterBuf = datasource.getLastBuffer(); |
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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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* bufferFactory 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 GridImpl(RasterDataStore datasource) throws RasterBufferInvalidException { |
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//La petici?n es del raster completo
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double cellSize[] = calcCellSize( datasource, |
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datasource.getWidth(), |
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datasource.getHeight()); |
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windowExtent = layerExtent = new GridExtentImpl(datasource.getExtent(),
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cellSize[0],
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cellSize[1]);
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if(datasource.getDataType() != null) |
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dataType = datasource.getDataType()[0];
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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 = datasource.getLastBuffer(); |
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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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* Calcula el tama?o de celda a partir de un dataset, un ancho y un alto en pixeles
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* @return
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*/
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private double[] calcCellSize(RasterDataStore mDataset, double w, double h) { |
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double dCellsize[] = new double[2]; |
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try {
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Extent e = mDataset.getExtent(); |
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dCellsize[0] = (e.getLRX() - e.getULX()) / w;
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dCellsize[1] = (e.getLRY() - e.getULY()) / h;
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return dCellsize;
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} catch (NullPointerException e) { |
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dCellsize[0] = 1; |
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dCellsize[1] = 1; |
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return dCellsize;
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} |
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} |
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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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/**
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* Inicializaci?n de constantes
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*/
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private void init(RasterDataStore ds) { |
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int i;
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Transparency transparency = null; |
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double dCellSize = getCellSize();
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|
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statistic = new GridStatistic(this); |
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if (ds == null) |
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transparency = new DataStoreTransparency();
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else {
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transparency = ds.getTransparency().cloneTransparency(); |
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this.palette = new DataStoreColorTable(ds.getColorTable()); |
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} |
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filterList = new DefaultRasterFilterList();
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if (ds != null) { |
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filterList.addEnvParam("IStatistics", ds.getStatistics());
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filterList.addEnvParam("MultiRasterDataset", ds);
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} |
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filterList.addEnvParam("Transparency", transparency);
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if(rasterBuf != null) |
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filterList.setInitRasterBuf(rasterBuf); |
364 |
|
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m_dDist = new double[8]; |
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|
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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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_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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|
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.dal.coverage.grid.Grid#getBandCount()
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*/
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public int getBandCount() { |
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if(rasterBuf != null) |
383 |
return rasterBuf.getBandCount();
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return 0; |
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} |
386 |
|
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//************* Write Services *********************
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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(byte)
|
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*/
|
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public void assign(byte value)throws GridException { |
394 |
try {
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writer.assign(value); |
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} catch (RasterBufferInvalidAccessException e) {
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throw new GridException("Error wrinting buffer"); |
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} |
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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#assign(short)
|
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*/
|
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public void assign(short value)throws GridException { |
406 |
try {
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writer.assign(value); |
408 |
} catch (RasterBufferInvalidAccessException e) {
|
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throw new GridException("Error wrinting buffer"); |
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} |
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} |
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|
413 |
/*
|
414 |
* (non-Javadoc)
|
415 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(int)
|
416 |
*/
|
417 |
public void assign(int value)throws GridException { |
418 |
try {
|
419 |
writer.assign(value); |
420 |
} catch (RasterBufferInvalidAccessException e) {
|
421 |
throw new GridException("Error wrinting buffer"); |
422 |
} |
423 |
} |
424 |
|
425 |
/*
|
426 |
* (non-Javadoc)
|
427 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(float)
|
428 |
*/
|
429 |
public void assign(float value)throws GridException { |
430 |
try {
|
431 |
writer.assign(value); |
432 |
} catch (RasterBufferInvalidAccessException e) {
|
433 |
throw new GridException("Error wrinting buffer"); |
434 |
} |
435 |
} |
436 |
|
437 |
/*
|
438 |
* (non-Javadoc)
|
439 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(double)
|
440 |
*/
|
441 |
public void assign(double value)throws GridException { |
442 |
try {
|
443 |
writer.assign(value); |
444 |
} catch (RasterBufferInvalidAccessException e) {
|
445 |
throw new GridException("Error wrinting buffer"); |
446 |
} |
447 |
} |
448 |
|
449 |
/*
|
450 |
* (non-Javadoc)
|
451 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(org.gvsig.fmap.dataaccess.BufferFactory)
|
452 |
*/
|
453 |
public void assign(RasterDataStore dSource) throws GridException { |
454 |
Grid window = null;
|
455 |
try {
|
456 |
window = new GridImpl(dSource, bands, windowExtent);
|
457 |
write(window); |
458 |
writer.setNoDataValue(window.getNoDataValue()); |
459 |
} catch (RasterBufferInvalidException e) {
|
460 |
throw new GridException("Error writing buffer"); |
461 |
} |
462 |
} |
463 |
|
464 |
/*
|
465 |
* (non-Javadoc)
|
466 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(org.gvsig.fmap.grid.Grid)
|
467 |
*/
|
468 |
public void assign(Grid driver) throws GridException { |
469 |
if (driver.getGridExtent().equals(layerExtent)) {
|
470 |
write(driver); |
471 |
writer.setNoDataValue(driver.getNoDataValue()); |
472 |
} |
473 |
} |
474 |
|
475 |
/**
|
476 |
* Sobreescribe los datos del grid actual con los datos del grid pasado por par?metro
|
477 |
* @param g Grid desde donde se obtienen los datos
|
478 |
*/
|
479 |
private void write(Grid g) throws GridException { |
480 |
try{
|
481 |
switch(rasterBuf.getDataType()){
|
482 |
case Buffer.TYPE_BYTE: for (int x = 0; x < g.getNX(); x++) |
483 |
for (int y = 0; y < g.getNY(); y++) |
484 |
writer.setCellValue(x, y, g.getCellValueAsByte(x, y)); |
485 |
break;
|
486 |
case Buffer.TYPE_SHORT:for (int x = 0; x < g.getNX(); x++) |
487 |
for (int y = 0; y < g.getNY(); y++) |
488 |
writer.setCellValue(x, y, g.getCellValueAsShort(x, y)); |
489 |
break;
|
490 |
case Buffer.TYPE_INT: for (int x = 0; x < g.getNX(); x++) |
491 |
for (int y = 0; y < g.getNY(); y++) |
492 |
writer.setCellValue(x, y, g.getCellValueAsInt(x, y)); |
493 |
break;
|
494 |
case Buffer.TYPE_FLOAT:for (int x = 0; x < g.getNX(); x++) |
495 |
for (int y = 0; y < g.getNY(); y++) |
496 |
writer.setCellValue(x, y, g.getCellValueAsFloat(x, y)); |
497 |
break;
|
498 |
case Buffer.TYPE_DOUBLE:for (int x = 0; x < g.getNX(); x++) |
499 |
for (int y = 0; y < g.getNY(); y++) |
500 |
writer.setCellValue(x, y, g.getCellValueAsDouble(x, y)); |
501 |
break;
|
502 |
} |
503 |
} catch (OutOfGridException e) {
|
504 |
throw new GridException(""); |
505 |
} |
506 |
} |
507 |
|
508 |
/*
|
509 |
* (non-Javadoc)
|
510 |
* @see org.gvsig.fmap.grid.IWritableGrid#assignNoData()
|
511 |
*/
|
512 |
public void assignNoData(){ |
513 |
try {
|
514 |
if(!rasterBuf.getNoDataValue().isDefined())
|
515 |
return;
|
516 |
|
517 |
switch(rasterBuf.getDataType()){
|
518 |
case Buffer.TYPE_BYTE: writer.assign((byte)rasterBuf.getNoDataValue().getValue().byteValue());break; |
519 |
case Buffer.TYPE_SHORT: writer.assign((short)rasterBuf.getNoDataValue().getValue().shortValue());break; |
520 |
case Buffer.TYPE_INT: writer.assign((int)rasterBuf.getNoDataValue().getValue().intValue());break; |
521 |
case Buffer.TYPE_FLOAT: writer.assign((float)rasterBuf.getNoDataValue().getValue().floatValue());break; |
522 |
case Buffer.TYPE_DOUBLE: writer.assign(rasterBuf.getNoDataValue().getValue().doubleValue());break; |
523 |
} |
524 |
} catch (RasterBufferInvalidAccessException e) {
|
525 |
//No hacemos nada. El tipo de dato al que se accede no es controlado por el usuario por lo
|
526 |
//que no le mandamos la excepci?n hacia arriba.
|
527 |
e.printStackTrace(); |
528 |
} |
529 |
} |
530 |
|
531 |
/*
|
532 |
* (non-Javadoc)
|
533 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, byte)
|
534 |
*/
|
535 |
public void setCellValue(int x, int y, byte value)throws OutOfGridException{ |
536 |
writer.setCellValue(x, y, value); |
537 |
} |
538 |
|
539 |
/*
|
540 |
* (non-Javadoc)
|
541 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, short)
|
542 |
*/
|
543 |
public void setCellValue(int x, int y, short value)throws OutOfGridException{ |
544 |
writer.setCellValue(x, y, value); |
545 |
} |
546 |
|
547 |
/*
|
548 |
* (non-Javadoc)
|
549 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, int)
|
550 |
*/
|
551 |
public void setCellValue(int x, int y, int value)throws OutOfGridException{ |
552 |
writer.setCellValue(x, y, value); |
553 |
} |
554 |
|
555 |
/*
|
556 |
* (non-Javadoc)
|
557 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, float)
|
558 |
*/
|
559 |
public void setCellValue(int x, int y, float value)throws OutOfGridException{ |
560 |
writer.setCellValue(x, y, value); |
561 |
} |
562 |
|
563 |
/*
|
564 |
* (non-Javadoc)
|
565 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, double)
|
566 |
*/
|
567 |
public void setCellValue(int x, int y, double value)throws OutOfGridException{ |
568 |
writer.setCellValue(x, y, value); |
569 |
} |
570 |
|
571 |
/*
|
572 |
* (non-Javadoc)
|
573 |
* @see org.gvsig.fmap.grid.IWritableGrid#add(org.gvsig.fmap.grid.Grid)
|
574 |
*/
|
575 |
public void add(Grid g) throws GridException { |
576 |
if (g.getGridExtent().equals(getGridExtent())) {
|
577 |
boolean interp = (reader instanceof GridInterpolated); |
578 |
switchToInterpolationMethod(false);
|
579 |
try{
|
580 |
switch(rasterBuf.getDataType()){
|
581 |
case Buffer.TYPE_BYTE: for (int x = 0; x < g.getNX(); x++) |
582 |
for (int y = 0; y < g.getNY(); y++) |
583 |
writer.setCellValue(x, y, reader.getCellValueAsByte(x, y) + g.getCellValueAsByte(x,y)); |
584 |
break;
|
585 |
case Buffer.TYPE_SHORT:for (int x = 0; x < g.getNX(); x++) |
586 |
for (int y = 0; y < g.getNY(); y++) |
587 |
writer.setCellValue(x, y, reader.getCellValueAsShort(x, y) + g.getCellValueAsShort(x,y)); |
588 |
break;
|
589 |
case Buffer.TYPE_INT: for (int x = 0; x < g.getNX(); x++) |
590 |
for (int y = 0; y < g.getNY(); y++) |
591 |
writer.setCellValue(x, y, reader.getCellValueAsInt(x, y) + g.getCellValueAsInt(x,y)); |
592 |
break;
|
593 |
case Buffer.TYPE_FLOAT:for (int x = 0; x < g.getNX(); x++) |
594 |
for (int y = 0; y < g.getNY(); y++) |
595 |
writer.setCellValue(x, y, reader.getCellValueAsFloat(x, y) + g.getCellValueAsFloat(x,y)); |
596 |
break;
|
597 |
case Buffer.TYPE_DOUBLE:for (int x = 0; x < g.getNX(); x++) |
598 |
for (int y = 0; y < g.getNY(); y++) |
599 |
writer.setCellValue(x, y, reader.getCellValueAsDouble(x, y) + g.getCellValueAsDouble(x,y)); |
600 |
break;
|
601 |
} |
602 |
} catch (OutOfGridException e) {
|
603 |
throw new GridException(""); |
604 |
} catch (RasterBufferInvalidAccessException e1) {
|
605 |
throw new GridException(""); |
606 |
} catch (RasterBufferInvalidException e) {
|
607 |
throw new GridException(""); |
608 |
} |
609 |
switchToInterpolationMethod(interp); |
610 |
} |
611 |
} |
612 |
|
613 |
/*
|
614 |
* (non-Javadoc)
|
615 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, byte)
|
616 |
*/
|
617 |
public void addToCellValue(int x, int y, byte value) |
618 |
throws GridException {
|
619 |
try {
|
620 |
writer.setCellValue(x, y, (byte)(reader.getCellValueAsByte(x, y) + value));
|
621 |
} catch (OutOfGridException e) {
|
622 |
throw new GridException(""); |
623 |
} catch (RasterBufferInvalidAccessException e) {
|
624 |
throw new GridException(""); |
625 |
} catch (RasterBufferInvalidException e) {
|
626 |
throw new GridException(""); |
627 |
} |
628 |
} |
629 |
|
630 |
/*
|
631 |
* (non-Javadoc)
|
632 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, short)
|
633 |
*/
|
634 |
public void addToCellValue(int x, int y, short value) |
635 |
throws GridException {
|
636 |
try {
|
637 |
writer.setCellValue(x, y, (short)(reader.getCellValueAsShort(x, y) + value));
|
638 |
} catch (OutOfGridException e) {
|
639 |
throw new GridException(""); |
640 |
} catch (RasterBufferInvalidAccessException e) {
|
641 |
throw new GridException(""); |
642 |
} catch (RasterBufferInvalidException e) {
|
643 |
throw new GridException(""); |
644 |
} |
645 |
} |
646 |
|
647 |
/*
|
648 |
* (non-Javadoc)
|
649 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, int)
|
650 |
*/
|
651 |
public void addToCellValue(int x, int y, int value) |
652 |
throws GridException {
|
653 |
try {
|
654 |
writer.setCellValue(x, y, (reader.getCellValueAsInt(x, y) + value)); |
655 |
} catch (OutOfGridException e) {
|
656 |
throw new GridException(""); |
657 |
} catch (RasterBufferInvalidAccessException e) {
|
658 |
throw new GridException(""); |
659 |
} catch (RasterBufferInvalidException e) {
|
660 |
throw new GridException(""); |
661 |
} |
662 |
} |
663 |
|
664 |
/*
|
665 |
* (non-Javadoc)
|
666 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, float)
|
667 |
*/
|
668 |
public void addToCellValue(int x, int y, float value) |
669 |
throws GridException {
|
670 |
try {
|
671 |
writer.setCellValue(x, y, (reader.getCellValueAsFloat(x, y) + value)); |
672 |
} catch (OutOfGridException e) {
|
673 |
throw new GridException(""); |
674 |
} catch (RasterBufferInvalidAccessException e) {
|
675 |
throw new GridException(""); |
676 |
} catch (RasterBufferInvalidException e) {
|
677 |
throw new GridException(""); |
678 |
} |
679 |
} |
680 |
|
681 |
/*
|
682 |
* (non-Javadoc)
|
683 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, double)
|
684 |
*/
|
685 |
public void addToCellValue(int x, int y, double value) |
686 |
throws GridException {
|
687 |
try {
|
688 |
writer.setCellValue(x, y, (reader.getCellValueAsDouble(x, y) + value)); |
689 |
} catch (OutOfGridException e) {
|
690 |
throw new GridException(""); |
691 |
} catch (RasterBufferInvalidAccessException e) {
|
692 |
throw new GridException(""); |
693 |
} catch (RasterBufferInvalidException e) {
|
694 |
throw new GridException(""); |
695 |
} |
696 |
} |
697 |
|
698 |
/*
|
699 |
* (non-Javadoc)
|
700 |
* @see org.gvsig.fmap.grid.IWritableGrid#multiply(double)
|
701 |
*/
|
702 |
public void multiply(double value) throws GridException { |
703 |
boolean interp = (reader instanceof GridInterpolated); |
704 |
switchToInterpolationMethod(false);
|
705 |
try{
|
706 |
switch(rasterBuf.getDataType()){
|
707 |
case Buffer.TYPE_BYTE: for (int x = 0; x < getNX(); x++) |
708 |
for (int y = 0; y < getNY(); y++) |
709 |
writer.setCellValue(x, y, (byte)(reader.getCellValueAsByte(x, y) * value));
|
710 |
break;
|
711 |
case Buffer.TYPE_SHORT:for (int x = 0; x < getNX(); x++) |
712 |
for (int y = 0; y < getNY(); y++) |
713 |
writer.setCellValue(x, y, (short)(reader.getCellValueAsShort(x, y) * value));
|
714 |
break;
|
715 |
case Buffer.TYPE_INT: for (int x = 0; x < getNX(); x++) |
716 |
for (int y = 0; y < getNY(); y++) |
717 |
writer.setCellValue(x, y, (int)(reader.getCellValueAsInt(x, y) * value));
|
718 |
break;
|
719 |
case Buffer.TYPE_FLOAT:for (int x = 0; x < getNX(); x++) |
720 |
for (int y = 0; y < getNY(); y++) |
721 |
writer.setCellValue(x, y, (float)(reader.getCellValueAsFloat(x, y) * value));
|
722 |
break;
|
723 |
case Buffer.TYPE_DOUBLE:for (int x = 0; x < getNX(); x++) |
724 |
for (int y = 0; y < getNY(); y++) |
725 |
writer.setCellValue(x, y, (reader.getCellValueAsDouble(x, y) * value)); |
726 |
break;
|
727 |
} |
728 |
} catch (RasterBufferInvalidException e) {
|
729 |
throw new GridException("Buffer de datos no v?lido", e); |
730 |
} catch (OutOfGridException e1) {
|
731 |
throw new GridException("Acceso fuera de los l?mites del Grid", e1); |
732 |
} catch (RasterBufferInvalidAccessException e) {
|
733 |
throw new GridException("Acceso al grid no v?lido", e); |
734 |
} |
735 |
//Restauramos el reader que hab?a
|
736 |
switchToInterpolationMethod(interp); |
737 |
} |
738 |
|
739 |
/*
|
740 |
* (non-Javadoc)
|
741 |
* @see org.gvsig.fmap.grid.IWritableGrid#setNoDataValue(double)
|
742 |
*/
|
743 |
public void setNoDataValue(NoData dNoDataValue) { |
744 |
writer.setNoDataValue(dNoDataValue); |
745 |
} |
746 |
|
747 |
/*
|
748 |
* (non-Javadoc)
|
749 |
* @see org.gvsig.fmap.grid.IWritableGrid#setNoData(int, int)
|
750 |
*/
|
751 |
public void setNoData(int x, int y){ |
752 |
writer.setNoData(x, y); |
753 |
} |
754 |
|
755 |
//************* Query Services *********************
|
756 |
|
757 |
/*
|
758 |
* (non-Javadoc)
|
759 |
* @see org.gvsig.fmap.grid.IQueryableGrid#isNoDataValue(double)
|
760 |
*/
|
761 |
public boolean isNoDataValue(double noDataValue){ |
762 |
return (reader.getNoDataValue() == noDataValue);
|
763 |
} |
764 |
|
765 |
/*
|
766 |
* (non-Javadoc)
|
767 |
* @see org.gvsig.fmap.grid.IQueryableGrid#isInGrid(int, int)
|
768 |
*/
|
769 |
public boolean isInGrid(int x, int y){ |
770 |
return reader.isCellInGrid(x, y);
|
771 |
} |
772 |
|
773 |
/*
|
774 |
* (non-Javadoc)
|
775 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellSize()
|
776 |
*/
|
777 |
public double getCellSize() { |
778 |
return reader.getCellSize();
|
779 |
} |
780 |
|
781 |
/*
|
782 |
* (non-Javadoc)
|
783 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsByte(int, int)
|
784 |
*/
|
785 |
public byte getCellValueAsByte(int x, int y)throws GridException { |
786 |
try {
|
787 |
return reader.getCellValueAsByte(x, y);
|
788 |
} catch (RasterBufferInvalidAccessException e) {
|
789 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
790 |
} catch (RasterBufferInvalidException e) {
|
791 |
throw new GridException("Buffer not valid"); |
792 |
} |
793 |
} |
794 |
|
795 |
/*
|
796 |
* (non-Javadoc)
|
797 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsShort(int, int)
|
798 |
*/
|
799 |
public short getCellValueAsShort(int x, int y)throws GridException { |
800 |
try {
|
801 |
return reader.getCellValueAsShort(x, y);
|
802 |
} catch (RasterBufferInvalidAccessException e) {
|
803 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
804 |
} catch (RasterBufferInvalidException e) {
|
805 |
throw new GridException("Buffer not valid"); |
806 |
} |
807 |
} |
808 |
|
809 |
/*
|
810 |
* (non-Javadoc)
|
811 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsInt(int, int)
|
812 |
*/
|
813 |
public int getCellValueAsInt(int x, int y)throws GridException { |
814 |
try {
|
815 |
return reader.getCellValueAsInt(x, y);
|
816 |
} catch (RasterBufferInvalidAccessException e) {
|
817 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
818 |
} catch (RasterBufferInvalidException e) {
|
819 |
throw new GridException("Buffer not valid"); |
820 |
} |
821 |
} |
822 |
|
823 |
/*
|
824 |
* (non-Javadoc)
|
825 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsFloat(int, int)
|
826 |
*/
|
827 |
public float getCellValueAsFloat(int x, int y)throws GridException { |
828 |
try {
|
829 |
return reader.getCellValueAsFloat(x, y);
|
830 |
} catch (RasterBufferInvalidAccessException e) {
|
831 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
832 |
} catch (RasterBufferInvalidException e) {
|
833 |
throw new GridException("Buffer not valid"); |
834 |
} |
835 |
} |
836 |
|
837 |
/*
|
838 |
* (non-Javadoc)
|
839 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsDouble(int, int)
|
840 |
*/
|
841 |
public double getCellValueAsDouble(int x, int y)throws GridException { |
842 |
try {
|
843 |
return reader.getCellValueAsDouble(x, y);
|
844 |
} catch (RasterBufferInvalidAccessException e) {
|
845 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
846 |
} catch (RasterBufferInvalidException e) {
|
847 |
throw new GridException("Buffer not valid"); |
848 |
} |
849 |
} |
850 |
|
851 |
/*
|
852 |
* (non-Javadoc)
|
853 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsDouble(int, int)
|
854 |
*/
|
855 |
public double getCellValue(int x, int y)throws GridException { |
856 |
try {
|
857 |
return reader.getCellValue(x, y);
|
858 |
} catch (RasterBufferInvalidAccessException e) {
|
859 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
860 |
} catch (RasterBufferInvalidException e) {
|
861 |
throw new GridException("Buffer not valid"); |
862 |
} |
863 |
} |
864 |
|
865 |
/*
|
866 |
* (non-Javadoc)
|
867 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNoDataValue()
|
868 |
*/
|
869 |
public NoData getNoDataValue() {
|
870 |
return rasterBuf.getNoDataValue();
|
871 |
} |
872 |
|
873 |
/*
|
874 |
* (non-Javadoc)
|
875 |
* @see org.gvsig.fmap.grid.IQueryableGrid#setInterpolationMethod(int)
|
876 |
*/
|
877 |
public void setInterpolationMethod(int iMethod){ |
878 |
if (reader instanceof GridInterpolated) |
879 |
((GridInterpolated) reader).setInterpolationMethod(iMethod); |
880 |
else{
|
881 |
this.switchToInterpolationMethod(true); |
882 |
((GridInterpolated) reader).setInterpolationMethod(iMethod); |
883 |
} |
884 |
} |
885 |
|
886 |
/*
|
887 |
* (non-Javadoc)
|
888 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNX()
|
889 |
*/
|
890 |
public int getNX(){ |
891 |
return reader.getNX();
|
892 |
} |
893 |
|
894 |
/*
|
895 |
* (non-Javadoc)
|
896 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNY()
|
897 |
*/
|
898 |
public int getNY(){ |
899 |
return reader.getNY();
|
900 |
} |
901 |
|
902 |
/*
|
903 |
* (non-Javadoc)
|
904 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getLayerNX()
|
905 |
*/
|
906 |
public int getLayerNX(){ |
907 |
return layerExtent.getNX();
|
908 |
} |
909 |
|
910 |
/*
|
911 |
* (non-Javadoc)
|
912 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getLayerNY()
|
913 |
*/
|
914 |
public int getLayerNY(){ |
915 |
return layerExtent.getNY();
|
916 |
} |
917 |
|
918 |
public int getDataType(){ |
919 |
return dataType;
|
920 |
} |
921 |
|
922 |
private boolean getSubMatrix3x3(int x, int y, double subMatrix[]) |
923 |
throws GridException {
|
924 |
int i;
|
925 |
int iDir;
|
926 |
double z, z2;
|
927 |
|
928 |
z = getCellValueAsDouble(x, y); |
929 |
|
930 |
if(isNoDataValue(z))
|
931 |
return false; |
932 |
else {
|
933 |
//SubMatrix[4] = 0.0;
|
934 |
for(i = 0; i < 4; i++) { |
935 |
iDir = 2 * i;
|
936 |
z2 = getCellValueAsDouble(x + m_iOffsetX[iDir], y + m_iOffsetY[iDir]); |
937 |
if( !isNoDataValue(z2))
|
938 |
subMatrix[i] = z2 - z; |
939 |
else {
|
940 |
z2 = getCellValueAsDouble(x + m_iOffsetX[(iDir + 4) % 8], y + m_iOffsetY[(iDir + 4) % 8]); |
941 |
if( !isNoDataValue(z2))
|
942 |
subMatrix[i] = z - z2; |
943 |
else
|
944 |
subMatrix[i] = 0.0;
|
945 |
} |
946 |
} |
947 |
|
948 |
return true; |
949 |
} |
950 |
} |
951 |
|
952 |
/*
|
953 |
* (non-Javadoc)
|
954 |
* @see org.gvsig.raster.grid.IQueryableGrid#getSlope(int, int)
|
955 |
*/
|
956 |
public double getSlope(int x, int y)throws GridException { |
957 |
double zm[], G, H; |
958 |
|
959 |
zm = new double[4]; |
960 |
|
961 |
try {
|
962 |
if( getSubMatrix3x3(x, y, zm) ) {
|
963 |
G = (zm[0] - zm[2]) / _2DX; |
964 |
H = (zm[1] - zm[3]) / _2DX; |
965 |
return Math.atan(Math.sqrt(G * G + H * H)); |
966 |
} else
|
967 |
return rasterBuf.getNoDataValue().isDefined() ? rasterBuf.getNoDataValue().getValue().doubleValue() : RasterLibrary.defaultDoubleNoDataValue;
|
968 |
} catch (GridException e) {
|
969 |
throw new GridException("Problems accesing 3x3 submatrix"); |
970 |
} |
971 |
} |
972 |
|
973 |
/*
|
974 |
* (non-Javadoc)
|
975 |
* @see org.gvsig.raster.grid.IQueryableGrid#getAspect(int, int)
|
976 |
*/
|
977 |
public double getAspect(int x, int y)throws GridException { |
978 |
double zm[], G, H, dAspect; |
979 |
zm = new double[4]; |
980 |
|
981 |
try {
|
982 |
if( getSubMatrix3x3(x, y, zm) ) {
|
983 |
G = (zm[0] - zm[2]) / _2DX; |
984 |
H = (zm[1] - zm[3]) / _2DX; |
985 |
if(G != 0.0) |
986 |
dAspect = DEG_180_IN_RAD + Math.atan2(H, G);
|
987 |
else
|
988 |
dAspect = H > 0.0 ? DEG_270_IN_RAD : (H < 0.0 ? DEG_90_IN_RAD : -1.0); |
989 |
return dAspect;
|
990 |
} |
991 |
else
|
992 |
return rasterBuf.getNoDataValue().isDefined() ? rasterBuf.getNoDataValue().getValue().doubleValue() : RasterLibrary.defaultDoubleNoDataValue;
|
993 |
} catch (GridException e) {
|
994 |
throw new GridException("Problems accesing 3x3 submatrix"); |
995 |
} |
996 |
} |
997 |
|
998 |
public static int getXOffsetInDir(int iDir){ |
999 |
return m_iOffsetX[iDir];
|
1000 |
} |
1001 |
|
1002 |
public static int getYOffsetInDir(int iDir){ |
1003 |
return m_iOffsetY[iDir];
|
1004 |
} |
1005 |
|
1006 |
public double getDistToNeighborInDir(int iDir){ |
1007 |
return m_dDist[iDir];
|
1008 |
} |
1009 |
|
1010 |
public static double getUnitDistToNeighborInDir(int iDir){ |
1011 |
return( (iDir % 2 != 0) ? Math.sqrt(2.0) : 1.0 ); |
1012 |
} |
1013 |
|
1014 |
/*
|
1015 |
* (non-Javadoc)
|
1016 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getDirToNextDownslopeCell(int, int)
|
1017 |
*/
|
1018 |
public int getDirToNextDownslopeCell(int x, int y)throws GridException{ |
1019 |
return getDirToNextDownslopeCell(x, y, true); |
1020 |
} |
1021 |
|
1022 |
/*
|
1023 |
* (non-Javadoc)
|
1024 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getDirToNextDownslopeCell(int, int, boolean)
|
1025 |
*/
|
1026 |
public int getDirToNextDownslopeCell(int x, int y, boolean bForceDirToNoDataCell) |
1027 |
throws GridException{
|
1028 |
|
1029 |
int i, iDir;
|
1030 |
double z, z2, dSlope, dMaxSlope;
|
1031 |
|
1032 |
z = getCellValueAsDouble(x, y); |
1033 |
|
1034 |
if(isNoDataValue(z))
|
1035 |
return -1; |
1036 |
|
1037 |
dMaxSlope = 0.0;
|
1038 |
for(iDir=-1, i=0; i<8; i++) { |
1039 |
z2 = getCellValueAsDouble(x + m_iOffsetX[i], y + m_iOffsetY[i]); |
1040 |
if(isNoDataValue(z2)) {
|
1041 |
if (bForceDirToNoDataCell)
|
1042 |
return i;
|
1043 |
else
|
1044 |
return -1; |
1045 |
} |
1046 |
else {
|
1047 |
dSlope = (z - z2) / getDistToNeighborInDir(i); |
1048 |
if( dSlope > dMaxSlope ) {
|
1049 |
iDir = i; |
1050 |
dMaxSlope = dSlope; |
1051 |
} |
1052 |
} |
1053 |
} |
1054 |
return iDir;
|
1055 |
} |
1056 |
|
1057 |
public GridCell[] getSortedArrayOfCells()throws GridException { |
1058 |
int i;
|
1059 |
int iX,iY;
|
1060 |
int iNX = getNX();
|
1061 |
int iCells = getNX() * getNY();
|
1062 |
GridCell [] cells = null; |
1063 |
|
1064 |
cells = new GridCellImpl[iCells];
|
1065 |
|
1066 |
for (i = 0; i < iCells; i++) { |
1067 |
iX = i % iNX; |
1068 |
iY = i / iNX; |
1069 |
cells[i] = getGridCell(iX, iY); |
1070 |
} |
1071 |
|
1072 |
Arrays.sort(cells);
|
1073 |
return cells;
|
1074 |
} |
1075 |
|
1076 |
/*
|
1077 |
* (non-Javadoc)
|
1078 |
* @see org.gvsig.fmap.dal.coverage.grid.Grid#getGridCell(int, int)
|
1079 |
*/
|
1080 |
public GridCell getGridCell(int iX, int iY) throws GridException { |
1081 |
switch(getDataType()){
|
1082 |
case Buffer.TYPE_BYTE: return new GridCellImpl(iX, iY, getCellValueAsByte(iX, iY)); |
1083 |
case Buffer.TYPE_SHORT: return new GridCellImpl(iX, iY, getCellValueAsShort(iX, iY)); |
1084 |
case Buffer.TYPE_INT: return new GridCellImpl(iX, iY, getCellValueAsInt(iX, iY)); |
1085 |
case Buffer.TYPE_FLOAT: return new GridCellImpl(iX, iY, getCellValueAsFloat(iX, iY)); |
1086 |
case Buffer.TYPE_DOUBLE: return new GridCellImpl(iX, iY, getCellValueAsDouble(iX, iY)); |
1087 |
} |
1088 |
return null; |
1089 |
} |
1090 |
|
1091 |
/**
|
1092 |
* Obtiene la lista de paletas asociadas al grid
|
1093 |
* @return Lista de objetos GridPalette
|
1094 |
*/
|
1095 |
public ColorTable getPalette() {
|
1096 |
return palette;
|
1097 |
} |
1098 |
|
1099 |
/**
|
1100 |
* Obtiene el n?mero de bandas del grid o 0 si no tiene buffer de
|
1101 |
* datos asociado.
|
1102 |
* @return N?mero de bandas
|
1103 |
*/
|
1104 |
public int calculateStatistics() { |
1105 |
if(rasterBuf != null) |
1106 |
return rasterBuf.getBandCount();
|
1107 |
return 0; |
1108 |
} |
1109 |
|
1110 |
/**
|
1111 |
* Asigna la lista de paletas asociadas al grid
|
1112 |
* @param palette Lista de objetos GridPalette
|
1113 |
*/
|
1114 |
public void setPalette(ColorTable palette) { |
1115 |
this.palette = palette;
|
1116 |
} |
1117 |
|
1118 |
/**
|
1119 |
* Obtiene la lista de filtros.
|
1120 |
* @return Lista de filtros.
|
1121 |
*/
|
1122 |
public RasterFilterList getFilterList(){
|
1123 |
return filterList;
|
1124 |
} |
1125 |
|
1126 |
/**
|
1127 |
* Asigna la lista de filtros
|
1128 |
* @param filterList
|
1129 |
*/
|
1130 |
public void setFilterList(RasterFilterList filterList) { |
1131 |
this.filterList = filterList;
|
1132 |
} |
1133 |
|
1134 |
/**
|
1135 |
*Aplica la lista de filtros sobre el buffer
|
1136 |
* @throws InterruptedException
|
1137 |
*/
|
1138 |
public void applyFilters() throws ProcessInterruptedException { |
1139 |
if (filterList == null) |
1140 |
return;
|
1141 |
|
1142 |
filterList.setInitRasterBuf(rasterBuf); |
1143 |
|
1144 |
filterList.addEnvParam("GridExtent", getGridExtent());
|
1145 |
filterList.addEnvParam("WindowExtent", getWindowExtent());
|
1146 |
|
1147 |
filterList.execute(); |
1148 |
rasterBuf = (RasterBuffer) filterList.getResult(); |
1149 |
dataType = rasterBuf.getDataType(); |
1150 |
} |
1151 |
|
1152 |
/*
|
1153 |
* (non-Javadoc)
|
1154 |
* @see org.gvsig.fmap.dal.coverage.grid.Grid#getRasterBuf()
|
1155 |
*/
|
1156 |
public Buffer getRasterBuf() { |
1157 |
return rasterBuf;
|
1158 |
} |
1159 |
|
1160 |
/**
|
1161 |
* Obtiene el objeto que calcula las estad?sticas del Grid
|
1162 |
* @return IBasicStats
|
1163 |
*/
|
1164 |
public BasicStats getStatistics() {
|
1165 |
return statistic;
|
1166 |
} |
1167 |
|
1168 |
/**
|
1169 |
* Asigna la banda sobre la que se realizan las operaciones. Por defecto es la banda 0
|
1170 |
* con lo que para el uso de MDTs no habr? que modificar este valor.
|
1171 |
* @param band Banda sobre la que se realizan las operaciones.
|
1172 |
*/
|
1173 |
public void setBandToOperate(int band) { |
1174 |
if(writer != null) |
1175 |
writer.setBandToOperate(band); |
1176 |
if(reader != null) |
1177 |
reader.setBandToOperate(band); |
1178 |
if(statistic != null) |
1179 |
statistic.setBandToOperate(band); |
1180 |
} |
1181 |
|
1182 |
/**
|
1183 |
* Obtiene el extent de la ventana seleccionada para petici?n de datos
|
1184 |
* @return GridExtent
|
1185 |
*/
|
1186 |
public GridExtent getWindowExtent() {
|
1187 |
return windowExtent;
|
1188 |
} |
1189 |
|
1190 |
/*
|
1191 |
* (non-Javadoc)
|
1192 |
* @see org.gvsig.fmap.dal.coverage.grid.Grid#getGridExtent()
|
1193 |
*/
|
1194 |
public GridExtent getGridExtent() {
|
1195 |
return layerExtent;
|
1196 |
} |
1197 |
|
1198 |
/*
|
1199 |
* (non-Javadoc)
|
1200 |
* @see org.gvsig.tools.dispose.Disposable#dispose()
|
1201 |
*/
|
1202 |
public void dispose() { |
1203 |
if (rasterBuf != null) |
1204 |
rasterBuf.dispose(); |
1205 |
if(reader != null) |
1206 |
reader.dispose(); |
1207 |
if(writer != null) |
1208 |
writer.dispose(); |
1209 |
if(statistic != null) |
1210 |
statistic.dispose(); |
1211 |
//if (filterList != null)
|
1212 |
//filterList.free();
|
1213 |
if (writer != null) |
1214 |
writer.dispose(); |
1215 |
try {
|
1216 |
finalize(); |
1217 |
} catch (Throwable e) { |
1218 |
} |
1219 |
} |
1220 |
|
1221 |
/*
|
1222 |
* (non-Javadoc)
|
1223 |
* @see java.lang.Object#finalize()
|
1224 |
*/
|
1225 |
protected void finalize() throws Throwable { |
1226 |
bands = null;
|
1227 |
rasterBuf = null;
|
1228 |
reader = null;
|
1229 |
writer = null;
|
1230 |
windowExtent = null;
|
1231 |
layerExtent = null;
|
1232 |
statistic = null;
|
1233 |
palette = null;
|
1234 |
filterList = null;
|
1235 |
super.finalize();
|
1236 |
} |
1237 |
} |