gvsig-raster / org.gvsig.raster / branches / org.gvsig.raster_dataaccess_refactoring / org.gvsig.raster.lib / org.gvsig.raster.lib.impl / src / main / java / org / gvsig / raster / impl / grid / GridImpl.java @ 2308
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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.FilterAddException; |
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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.ColorInterpretation; |
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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.DataStoreColorInterpretation; |
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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 RasterDataset. 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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* 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(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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statistic = new GridStatistic(this); |
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if (ds == null) { |
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ColorInterpretation ci = new DataStoreColorInterpretation(rasterBuf.getBandCount());
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transparency = new DataStoreTransparency(ci);
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} |
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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("SrcStatistics", ds.getStatistics());
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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); |
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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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_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) |
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return rasterBuf.getBandCount();
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return 0; |
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} |
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|
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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 { |
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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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408 |
*/
|
409 |
public void assign(short value)throws GridException { |
410 |
try {
|
411 |
writer.assign(value); |
412 |
} catch (RasterBufferInvalidAccessException e) {
|
413 |
throw new GridException("Error wrinting buffer"); |
414 |
} |
415 |
} |
416 |
|
417 |
/*
|
418 |
* (non-Javadoc)
|
419 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(int)
|
420 |
*/
|
421 |
public void assign(int value)throws GridException { |
422 |
try {
|
423 |
writer.assign(value); |
424 |
} catch (RasterBufferInvalidAccessException e) {
|
425 |
throw new GridException("Error wrinting buffer"); |
426 |
} |
427 |
} |
428 |
|
429 |
/*
|
430 |
* (non-Javadoc)
|
431 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(float)
|
432 |
*/
|
433 |
public void assign(float value)throws GridException { |
434 |
try {
|
435 |
writer.assign(value); |
436 |
} catch (RasterBufferInvalidAccessException e) {
|
437 |
throw new GridException("Error wrinting buffer"); |
438 |
} |
439 |
} |
440 |
|
441 |
/*
|
442 |
* (non-Javadoc)
|
443 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(double)
|
444 |
*/
|
445 |
public void assign(double value)throws GridException { |
446 |
try {
|
447 |
writer.assign(value); |
448 |
} catch (RasterBufferInvalidAccessException e) {
|
449 |
throw new GridException("Error wrinting buffer"); |
450 |
} |
451 |
} |
452 |
|
453 |
/*
|
454 |
* (non-Javadoc)
|
455 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(org.gvsig.fmap.dataaccess.BufferFactory)
|
456 |
*/
|
457 |
public void assign(RasterDataStore dSource) throws GridException { |
458 |
Grid window = null;
|
459 |
try {
|
460 |
window = new GridImpl(dSource, bands, windowExtent);
|
461 |
write(window); |
462 |
writer.setNoDataValue(window.getNoDataValue()); |
463 |
} catch (RasterBufferInvalidException e) {
|
464 |
throw new GridException("Error writing buffer"); |
465 |
} |
466 |
} |
467 |
|
468 |
/*
|
469 |
* (non-Javadoc)
|
470 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(org.gvsig.fmap.grid.Grid)
|
471 |
*/
|
472 |
public void assign(Grid driver) throws GridException { |
473 |
if (driver.getGridExtent().equals(layerExtent)) {
|
474 |
write(driver); |
475 |
writer.setNoDataValue(driver.getNoDataValue()); |
476 |
} |
477 |
} |
478 |
|
479 |
/**
|
480 |
* Sobreescribe los datos del grid actual con los datos del grid pasado por par?metro
|
481 |
* @param g Grid desde donde se obtienen los datos
|
482 |
*/
|
483 |
private void write(Grid g) throws GridException { |
484 |
try{
|
485 |
switch(rasterBuf.getDataType()){
|
486 |
case Buffer.TYPE_BYTE: for (int x = 0; x < g.getNX(); x++) |
487 |
for (int y = 0; y < g.getNY(); y++) |
488 |
writer.setCellValue(x, y, g.getCellValueAsByte(x, y)); |
489 |
break;
|
490 |
case Buffer.TYPE_SHORT:for (int x = 0; x < g.getNX(); x++) |
491 |
for (int y = 0; y < g.getNY(); y++) |
492 |
writer.setCellValue(x, y, g.getCellValueAsShort(x, y)); |
493 |
break;
|
494 |
case Buffer.TYPE_INT: for (int x = 0; x < g.getNX(); x++) |
495 |
for (int y = 0; y < g.getNY(); y++) |
496 |
writer.setCellValue(x, y, g.getCellValueAsInt(x, y)); |
497 |
break;
|
498 |
case Buffer.TYPE_FLOAT:for (int x = 0; x < g.getNX(); x++) |
499 |
for (int y = 0; y < g.getNY(); y++) |
500 |
writer.setCellValue(x, y, g.getCellValueAsFloat(x, y)); |
501 |
break;
|
502 |
case Buffer.TYPE_DOUBLE:for (int x = 0; x < g.getNX(); x++) |
503 |
for (int y = 0; y < g.getNY(); y++) |
504 |
writer.setCellValue(x, y, g.getCellValueAsDouble(x, y)); |
505 |
break;
|
506 |
} |
507 |
} catch (OutOfGridException e) {
|
508 |
throw new GridException(""); |
509 |
} |
510 |
} |
511 |
|
512 |
/*
|
513 |
* (non-Javadoc)
|
514 |
* @see org.gvsig.fmap.grid.IWritableGrid#assignNoData()
|
515 |
*/
|
516 |
public void assignNoData(){ |
517 |
try {
|
518 |
if(!rasterBuf.getNoDataValue().isDefined())
|
519 |
return;
|
520 |
|
521 |
switch(rasterBuf.getDataType()){
|
522 |
case Buffer.TYPE_BYTE: writer.assign((byte)rasterBuf.getNoDataValue().getValue().byteValue());break; |
523 |
case Buffer.TYPE_SHORT: writer.assign((short)rasterBuf.getNoDataValue().getValue().shortValue());break; |
524 |
case Buffer.TYPE_INT: writer.assign((int)rasterBuf.getNoDataValue().getValue().intValue());break; |
525 |
case Buffer.TYPE_FLOAT: writer.assign((float)rasterBuf.getNoDataValue().getValue().floatValue());break; |
526 |
case Buffer.TYPE_DOUBLE: writer.assign(rasterBuf.getNoDataValue().getValue().doubleValue());break; |
527 |
} |
528 |
} catch (RasterBufferInvalidAccessException e) {
|
529 |
//No hacemos nada. El tipo de dato al que se accede no es controlado por el usuario por lo
|
530 |
//que no le mandamos la excepci?n hacia arriba.
|
531 |
e.printStackTrace(); |
532 |
} |
533 |
} |
534 |
|
535 |
/*
|
536 |
* (non-Javadoc)
|
537 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, byte)
|
538 |
*/
|
539 |
public void setCellValue(int x, int y, byte value)throws OutOfGridException{ |
540 |
writer.setCellValue(x, y, value); |
541 |
} |
542 |
|
543 |
/*
|
544 |
* (non-Javadoc)
|
545 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, short)
|
546 |
*/
|
547 |
public void setCellValue(int x, int y, short value)throws OutOfGridException{ |
548 |
writer.setCellValue(x, y, value); |
549 |
} |
550 |
|
551 |
/*
|
552 |
* (non-Javadoc)
|
553 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, int)
|
554 |
*/
|
555 |
public void setCellValue(int x, int y, int value)throws OutOfGridException{ |
556 |
writer.setCellValue(x, y, value); |
557 |
} |
558 |
|
559 |
/*
|
560 |
* (non-Javadoc)
|
561 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, float)
|
562 |
*/
|
563 |
public void setCellValue(int x, int y, float value)throws OutOfGridException{ |
564 |
writer.setCellValue(x, y, value); |
565 |
} |
566 |
|
567 |
/*
|
568 |
* (non-Javadoc)
|
569 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, double)
|
570 |
*/
|
571 |
public void setCellValue(int x, int y, double value)throws OutOfGridException{ |
572 |
writer.setCellValue(x, y, value); |
573 |
} |
574 |
|
575 |
/*
|
576 |
* (non-Javadoc)
|
577 |
* @see org.gvsig.fmap.grid.IWritableGrid#add(org.gvsig.fmap.grid.Grid)
|
578 |
*/
|
579 |
public void add(Grid g) throws GridException { |
580 |
if (g.getGridExtent().equals(getGridExtent())) {
|
581 |
boolean interp = (reader instanceof GridInterpolated); |
582 |
switchToInterpolationMethod(false);
|
583 |
try{
|
584 |
switch(rasterBuf.getDataType()){
|
585 |
case Buffer.TYPE_BYTE: for (int x = 0; x < g.getNX(); x++) |
586 |
for (int y = 0; y < g.getNY(); y++) |
587 |
writer.setCellValue(x, y, reader.getCellValueAsByte(x, y) + g.getCellValueAsByte(x,y)); |
588 |
break;
|
589 |
case Buffer.TYPE_SHORT:for (int x = 0; x < g.getNX(); x++) |
590 |
for (int y = 0; y < g.getNY(); y++) |
591 |
writer.setCellValue(x, y, reader.getCellValueAsShort(x, y) + g.getCellValueAsShort(x,y)); |
592 |
break;
|
593 |
case Buffer.TYPE_INT: for (int x = 0; x < g.getNX(); x++) |
594 |
for (int y = 0; y < g.getNY(); y++) |
595 |
writer.setCellValue(x, y, reader.getCellValueAsInt(x, y) + g.getCellValueAsInt(x,y)); |
596 |
break;
|
597 |
case Buffer.TYPE_FLOAT:for (int x = 0; x < g.getNX(); x++) |
598 |
for (int y = 0; y < g.getNY(); y++) |
599 |
writer.setCellValue(x, y, reader.getCellValueAsFloat(x, y) + g.getCellValueAsFloat(x,y)); |
600 |
break;
|
601 |
case Buffer.TYPE_DOUBLE:for (int x = 0; x < g.getNX(); x++) |
602 |
for (int y = 0; y < g.getNY(); y++) |
603 |
writer.setCellValue(x, y, reader.getCellValueAsDouble(x, y) + g.getCellValueAsDouble(x,y)); |
604 |
break;
|
605 |
} |
606 |
} catch (OutOfGridException e) {
|
607 |
throw new GridException(""); |
608 |
} catch (RasterBufferInvalidAccessException e1) {
|
609 |
throw new GridException(""); |
610 |
} catch (RasterBufferInvalidException e) {
|
611 |
throw new GridException(""); |
612 |
} |
613 |
switchToInterpolationMethod(interp); |
614 |
} |
615 |
} |
616 |
|
617 |
/*
|
618 |
* (non-Javadoc)
|
619 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, byte)
|
620 |
*/
|
621 |
public void addToCellValue(int x, int y, byte value) |
622 |
throws GridException {
|
623 |
try {
|
624 |
writer.setCellValue(x, y, (byte)(reader.getCellValueAsByte(x, y) + value));
|
625 |
} catch (OutOfGridException e) {
|
626 |
throw new GridException(""); |
627 |
} catch (RasterBufferInvalidAccessException e) {
|
628 |
throw new GridException(""); |
629 |
} catch (RasterBufferInvalidException e) {
|
630 |
throw new GridException(""); |
631 |
} |
632 |
} |
633 |
|
634 |
/*
|
635 |
* (non-Javadoc)
|
636 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, short)
|
637 |
*/
|
638 |
public void addToCellValue(int x, int y, short value) |
639 |
throws GridException {
|
640 |
try {
|
641 |
writer.setCellValue(x, y, (short)(reader.getCellValueAsShort(x, y) + value));
|
642 |
} catch (OutOfGridException e) {
|
643 |
throw new GridException(""); |
644 |
} catch (RasterBufferInvalidAccessException e) {
|
645 |
throw new GridException(""); |
646 |
} catch (RasterBufferInvalidException e) {
|
647 |
throw new GridException(""); |
648 |
} |
649 |
} |
650 |
|
651 |
/*
|
652 |
* (non-Javadoc)
|
653 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, int)
|
654 |
*/
|
655 |
public void addToCellValue(int x, int y, int value) |
656 |
throws GridException {
|
657 |
try {
|
658 |
writer.setCellValue(x, y, (reader.getCellValueAsInt(x, y) + value)); |
659 |
} catch (OutOfGridException e) {
|
660 |
throw new GridException(""); |
661 |
} catch (RasterBufferInvalidAccessException e) {
|
662 |
throw new GridException(""); |
663 |
} catch (RasterBufferInvalidException e) {
|
664 |
throw new GridException(""); |
665 |
} |
666 |
} |
667 |
|
668 |
/*
|
669 |
* (non-Javadoc)
|
670 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, float)
|
671 |
*/
|
672 |
public void addToCellValue(int x, int y, float value) |
673 |
throws GridException {
|
674 |
try {
|
675 |
writer.setCellValue(x, y, (reader.getCellValueAsFloat(x, y) + value)); |
676 |
} catch (OutOfGridException e) {
|
677 |
throw new GridException(""); |
678 |
} catch (RasterBufferInvalidAccessException e) {
|
679 |
throw new GridException(""); |
680 |
} catch (RasterBufferInvalidException e) {
|
681 |
throw new GridException(""); |
682 |
} |
683 |
} |
684 |
|
685 |
/*
|
686 |
* (non-Javadoc)
|
687 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, double)
|
688 |
*/
|
689 |
public void addToCellValue(int x, int y, double value) |
690 |
throws GridException {
|
691 |
try {
|
692 |
writer.setCellValue(x, y, (reader.getCellValueAsDouble(x, y) + value)); |
693 |
} catch (OutOfGridException e) {
|
694 |
throw new GridException(""); |
695 |
} catch (RasterBufferInvalidAccessException e) {
|
696 |
throw new GridException(""); |
697 |
} catch (RasterBufferInvalidException e) {
|
698 |
throw new GridException(""); |
699 |
} |
700 |
} |
701 |
|
702 |
/*
|
703 |
* (non-Javadoc)
|
704 |
* @see org.gvsig.fmap.grid.IWritableGrid#multiply(double)
|
705 |
*/
|
706 |
public void multiply(double value) throws GridException { |
707 |
boolean interp = (reader instanceof GridInterpolated); |
708 |
switchToInterpolationMethod(false);
|
709 |
try{
|
710 |
switch(rasterBuf.getDataType()){
|
711 |
case Buffer.TYPE_BYTE: for (int x = 0; x < getNX(); x++) |
712 |
for (int y = 0; y < getNY(); y++) |
713 |
writer.setCellValue(x, y, (byte)(reader.getCellValueAsByte(x, y) * value));
|
714 |
break;
|
715 |
case Buffer.TYPE_SHORT:for (int x = 0; x < getNX(); x++) |
716 |
for (int y = 0; y < getNY(); y++) |
717 |
writer.setCellValue(x, y, (short)(reader.getCellValueAsShort(x, y) * value));
|
718 |
break;
|
719 |
case Buffer.TYPE_INT: for (int x = 0; x < getNX(); x++) |
720 |
for (int y = 0; y < getNY(); y++) |
721 |
writer.setCellValue(x, y, (int)(reader.getCellValueAsInt(x, y) * value));
|
722 |
break;
|
723 |
case Buffer.TYPE_FLOAT:for (int x = 0; x < getNX(); x++) |
724 |
for (int y = 0; y < getNY(); y++) |
725 |
writer.setCellValue(x, y, (float)(reader.getCellValueAsFloat(x, y) * value));
|
726 |
break;
|
727 |
case Buffer.TYPE_DOUBLE:for (int x = 0; x < getNX(); x++) |
728 |
for (int y = 0; y < getNY(); y++) |
729 |
writer.setCellValue(x, y, (reader.getCellValueAsDouble(x, y) * value)); |
730 |
break;
|
731 |
} |
732 |
} catch (RasterBufferInvalidException e) {
|
733 |
throw new GridException("Buffer de datos no v?lido", e); |
734 |
} catch (OutOfGridException e1) {
|
735 |
throw new GridException("Acceso fuera de los l?mites del Grid", e1); |
736 |
} catch (RasterBufferInvalidAccessException e) {
|
737 |
throw new GridException("Acceso al grid no v?lido", e); |
738 |
} |
739 |
//Restauramos el reader que hab?a
|
740 |
switchToInterpolationMethod(interp); |
741 |
} |
742 |
|
743 |
/*
|
744 |
* (non-Javadoc)
|
745 |
* @see org.gvsig.fmap.grid.IWritableGrid#setNoDataValue(double)
|
746 |
*/
|
747 |
public void setNoDataValue(NoData dNoDataValue) { |
748 |
writer.setNoDataValue(dNoDataValue); |
749 |
} |
750 |
|
751 |
/*
|
752 |
* (non-Javadoc)
|
753 |
* @see org.gvsig.fmap.grid.IWritableGrid#setNoData(int, int)
|
754 |
*/
|
755 |
public void setNoData(int x, int y){ |
756 |
writer.setNoData(x, y); |
757 |
} |
758 |
|
759 |
//************* Query Services *********************
|
760 |
|
761 |
/*
|
762 |
* (non-Javadoc)
|
763 |
* @see org.gvsig.fmap.grid.IQueryableGrid#isNoDataValue(double)
|
764 |
*/
|
765 |
public boolean isNoDataValue(double noDataValue){ |
766 |
return (reader.getNoDataValue() == noDataValue);
|
767 |
} |
768 |
|
769 |
/*
|
770 |
* (non-Javadoc)
|
771 |
* @see org.gvsig.fmap.grid.IQueryableGrid#isInGrid(int, int)
|
772 |
*/
|
773 |
public boolean isInGrid(int x, int y){ |
774 |
return reader.isCellInGrid(x, y);
|
775 |
} |
776 |
|
777 |
/*
|
778 |
* (non-Javadoc)
|
779 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellSize()
|
780 |
*/
|
781 |
public double getCellSize() { |
782 |
return reader.getCellSize();
|
783 |
} |
784 |
|
785 |
/*
|
786 |
* (non-Javadoc)
|
787 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsByte(int, int)
|
788 |
*/
|
789 |
public byte getCellValueAsByte(int x, int y)throws GridException { |
790 |
try {
|
791 |
return reader.getCellValueAsByte(x, y);
|
792 |
} catch (RasterBufferInvalidAccessException e) {
|
793 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
794 |
} catch (RasterBufferInvalidException e) {
|
795 |
throw new GridException("Buffer not valid"); |
796 |
} |
797 |
} |
798 |
|
799 |
/*
|
800 |
* (non-Javadoc)
|
801 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsShort(int, int)
|
802 |
*/
|
803 |
public short getCellValueAsShort(int x, int y)throws GridException { |
804 |
try {
|
805 |
return reader.getCellValueAsShort(x, y);
|
806 |
} catch (RasterBufferInvalidAccessException e) {
|
807 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
808 |
} catch (RasterBufferInvalidException e) {
|
809 |
throw new GridException("Buffer not valid"); |
810 |
} |
811 |
} |
812 |
|
813 |
/*
|
814 |
* (non-Javadoc)
|
815 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsInt(int, int)
|
816 |
*/
|
817 |
public int getCellValueAsInt(int x, int y)throws GridException { |
818 |
try {
|
819 |
return reader.getCellValueAsInt(x, y);
|
820 |
} catch (RasterBufferInvalidAccessException e) {
|
821 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
822 |
} catch (RasterBufferInvalidException e) {
|
823 |
throw new GridException("Buffer not valid"); |
824 |
} |
825 |
} |
826 |
|
827 |
/*
|
828 |
* (non-Javadoc)
|
829 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsFloat(int, int)
|
830 |
*/
|
831 |
public float getCellValueAsFloat(int x, int y)throws GridException { |
832 |
try {
|
833 |
return reader.getCellValueAsFloat(x, y);
|
834 |
} catch (RasterBufferInvalidAccessException e) {
|
835 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
836 |
} catch (RasterBufferInvalidException e) {
|
837 |
throw new GridException("Buffer not valid"); |
838 |
} |
839 |
} |
840 |
|
841 |
/*
|
842 |
* (non-Javadoc)
|
843 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsDouble(int, int)
|
844 |
*/
|
845 |
public double getCellValueAsDouble(int x, int y)throws GridException { |
846 |
try {
|
847 |
return reader.getCellValueAsDouble(x, y);
|
848 |
} catch (RasterBufferInvalidAccessException e) {
|
849 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
850 |
} catch (RasterBufferInvalidException e) {
|
851 |
throw new GridException("Buffer not valid"); |
852 |
} |
853 |
} |
854 |
|
855 |
/*
|
856 |
* (non-Javadoc)
|
857 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsDouble(int, int)
|
858 |
*/
|
859 |
public double getCellValue(int x, int y)throws GridException { |
860 |
try {
|
861 |
return reader.getCellValue(x, y);
|
862 |
} catch (RasterBufferInvalidAccessException e) {
|
863 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
864 |
} catch (RasterBufferInvalidException e) {
|
865 |
throw new GridException("Buffer not valid"); |
866 |
} |
867 |
} |
868 |
|
869 |
/*
|
870 |
* (non-Javadoc)
|
871 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNoDataValue()
|
872 |
*/
|
873 |
public NoData getNoDataValue() {
|
874 |
return rasterBuf.getNoDataValue();
|
875 |
} |
876 |
|
877 |
/*
|
878 |
* (non-Javadoc)
|
879 |
* @see org.gvsig.fmap.grid.IQueryableGrid#setInterpolationMethod(int)
|
880 |
*/
|
881 |
public void setInterpolationMethod(int iMethod){ |
882 |
if (reader instanceof GridInterpolated) |
883 |
((GridInterpolated) reader).setInterpolationMethod(iMethod); |
884 |
else{
|
885 |
this.switchToInterpolationMethod(true); |
886 |
((GridInterpolated) reader).setInterpolationMethod(iMethod); |
887 |
} |
888 |
} |
889 |
|
890 |
/*
|
891 |
* (non-Javadoc)
|
892 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNX()
|
893 |
*/
|
894 |
public int getNX(){ |
895 |
return reader.getNX();
|
896 |
} |
897 |
|
898 |
/*
|
899 |
* (non-Javadoc)
|
900 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNY()
|
901 |
*/
|
902 |
public int getNY(){ |
903 |
return reader.getNY();
|
904 |
} |
905 |
|
906 |
/*
|
907 |
* (non-Javadoc)
|
908 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getLayerNX()
|
909 |
*/
|
910 |
public int getLayerNX(){ |
911 |
return layerExtent.getNX();
|
912 |
} |
913 |
|
914 |
/*
|
915 |
* (non-Javadoc)
|
916 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getLayerNY()
|
917 |
*/
|
918 |
public int getLayerNY(){ |
919 |
return layerExtent.getNY();
|
920 |
} |
921 |
|
922 |
public int getDataType(){ |
923 |
return dataType;
|
924 |
} |
925 |
|
926 |
private boolean getSubMatrix3x3(int x, int y, double subMatrix[]) |
927 |
throws GridException {
|
928 |
int i;
|
929 |
int iDir;
|
930 |
double z, z2;
|
931 |
|
932 |
z = getCellValueAsDouble(x, y); |
933 |
|
934 |
if(isNoDataValue(z))
|
935 |
return false; |
936 |
else {
|
937 |
//SubMatrix[4] = 0.0;
|
938 |
for(i = 0; i < 4; i++) { |
939 |
iDir = 2 * i;
|
940 |
z2 = getCellValueAsDouble(x + m_iOffsetX[iDir], y + m_iOffsetY[iDir]); |
941 |
if( !isNoDataValue(z2))
|
942 |
subMatrix[i] = z2 - z; |
943 |
else {
|
944 |
z2 = getCellValueAsDouble(x + m_iOffsetX[(iDir + 4) % 8], y + m_iOffsetY[(iDir + 4) % 8]); |
945 |
if( !isNoDataValue(z2))
|
946 |
subMatrix[i] = z - z2; |
947 |
else
|
948 |
subMatrix[i] = 0.0;
|
949 |
} |
950 |
} |
951 |
|
952 |
return true; |
953 |
} |
954 |
} |
955 |
|
956 |
/*
|
957 |
* (non-Javadoc)
|
958 |
* @see org.gvsig.raster.grid.IQueryableGrid#getSlope(int, int)
|
959 |
*/
|
960 |
public double getSlope(int x, int y)throws GridException { |
961 |
double zm[], G, H; |
962 |
|
963 |
zm = new double[4]; |
964 |
|
965 |
try {
|
966 |
if( getSubMatrix3x3(x, y, zm) ) {
|
967 |
G = (zm[0] - zm[2]) / _2DX; |
968 |
H = (zm[1] - zm[3]) / _2DX; |
969 |
return Math.atan(Math.sqrt(G * G + H * H)); |
970 |
} else
|
971 |
return rasterBuf.getNoDataValue().isDefined() ? rasterBuf.getNoDataValue().getValue().doubleValue() : RasterLibrary.defaultDoubleNoDataValue;
|
972 |
} catch (GridException e) {
|
973 |
throw new GridException("Problems accesing 3x3 submatrix"); |
974 |
} |
975 |
} |
976 |
|
977 |
/*
|
978 |
* (non-Javadoc)
|
979 |
* @see org.gvsig.raster.grid.IQueryableGrid#getAspect(int, int)
|
980 |
*/
|
981 |
public double getAspect(int x, int y)throws GridException { |
982 |
double zm[], G, H, dAspect; |
983 |
zm = new double[4]; |
984 |
|
985 |
try {
|
986 |
if( getSubMatrix3x3(x, y, zm) ) {
|
987 |
G = (zm[0] - zm[2]) / _2DX; |
988 |
H = (zm[1] - zm[3]) / _2DX; |
989 |
if(G != 0.0) |
990 |
dAspect = DEG_180_IN_RAD + Math.atan2(H, G);
|
991 |
else
|
992 |
dAspect = H > 0.0 ? DEG_270_IN_RAD : (H < 0.0 ? DEG_90_IN_RAD : -1.0); |
993 |
return dAspect;
|
994 |
} |
995 |
else
|
996 |
return rasterBuf.getNoDataValue().isDefined() ? rasterBuf.getNoDataValue().getValue().doubleValue() : RasterLibrary.defaultDoubleNoDataValue;
|
997 |
} catch (GridException e) {
|
998 |
throw new GridException("Problems accesing 3x3 submatrix"); |
999 |
} |
1000 |
} |
1001 |
|
1002 |
public static int getXOffsetInDir(int iDir){ |
1003 |
return m_iOffsetX[iDir];
|
1004 |
} |
1005 |
|
1006 |
public static int getYOffsetInDir(int iDir){ |
1007 |
return m_iOffsetY[iDir];
|
1008 |
} |
1009 |
|
1010 |
public double getDistToNeighborInDir(int iDir){ |
1011 |
return m_dDist[iDir];
|
1012 |
} |
1013 |
|
1014 |
public static double getUnitDistToNeighborInDir(int iDir){ |
1015 |
return( (iDir % 2 != 0) ? Math.sqrt(2.0) : 1.0 ); |
1016 |
} |
1017 |
|
1018 |
/*
|
1019 |
* (non-Javadoc)
|
1020 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getDirToNextDownslopeCell(int, int)
|
1021 |
*/
|
1022 |
public int getDirToNextDownslopeCell(int x, int y)throws GridException{ |
1023 |
return getDirToNextDownslopeCell(x, y, true); |
1024 |
} |
1025 |
|
1026 |
/*
|
1027 |
* (non-Javadoc)
|
1028 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getDirToNextDownslopeCell(int, int, boolean)
|
1029 |
*/
|
1030 |
public int getDirToNextDownslopeCell(int x, int y, boolean bForceDirToNoDataCell) |
1031 |
throws GridException{
|
1032 |
|
1033 |
int i, iDir;
|
1034 |
double z, z2, dSlope, dMaxSlope;
|
1035 |
|
1036 |
z = getCellValueAsDouble(x, y); |
1037 |
|
1038 |
if(isNoDataValue(z))
|
1039 |
return -1; |
1040 |
|
1041 |
dMaxSlope = 0.0;
|
1042 |
for(iDir=-1, i=0; i<8; i++) { |
1043 |
z2 = getCellValueAsDouble(x + m_iOffsetX[i], y + m_iOffsetY[i]); |
1044 |
if(isNoDataValue(z2)) {
|
1045 |
if (bForceDirToNoDataCell)
|
1046 |
return i;
|
1047 |
else
|
1048 |
return -1; |
1049 |
} |
1050 |
else {
|
1051 |
dSlope = (z - z2) / getDistToNeighborInDir(i); |
1052 |
if( dSlope > dMaxSlope ) {
|
1053 |
iDir = i; |
1054 |
dMaxSlope = dSlope; |
1055 |
} |
1056 |
} |
1057 |
} |
1058 |
return iDir;
|
1059 |
} |
1060 |
|
1061 |
public GridCell[] getSortedArrayOfCells()throws GridException { |
1062 |
int i;
|
1063 |
int iX,iY;
|
1064 |
int iNX = getNX();
|
1065 |
int iCells = getNX() * getNY();
|
1066 |
GridCell [] cells = null; |
1067 |
|
1068 |
cells = new GridCellImpl[iCells];
|
1069 |
|
1070 |
for (i = 0; i < iCells; i++) { |
1071 |
iX = i % iNX; |
1072 |
iY = i / iNX; |
1073 |
cells[i] = getGridCell(iX, iY); |
1074 |
} |
1075 |
|
1076 |
Arrays.sort(cells);
|
1077 |
return cells;
|
1078 |
} |
1079 |
|
1080 |
/*
|
1081 |
* (non-Javadoc)
|
1082 |
* @see org.gvsig.fmap.dal.coverage.grid.Grid#getGridCell(int, int)
|
1083 |
*/
|
1084 |
public GridCell getGridCell(int iX, int iY) throws GridException { |
1085 |
switch(getDataType()){
|
1086 |
case Buffer.TYPE_BYTE: return new GridCellImpl(iX, iY, getCellValueAsByte(iX, iY)); |
1087 |
case Buffer.TYPE_SHORT: return new GridCellImpl(iX, iY, getCellValueAsShort(iX, iY)); |
1088 |
case Buffer.TYPE_INT: return new GridCellImpl(iX, iY, getCellValueAsInt(iX, iY)); |
1089 |
case Buffer.TYPE_FLOAT: return new GridCellImpl(iX, iY, getCellValueAsFloat(iX, iY)); |
1090 |
case Buffer.TYPE_DOUBLE: return new GridCellImpl(iX, iY, getCellValueAsDouble(iX, iY)); |
1091 |
} |
1092 |
return null; |
1093 |
} |
1094 |
|
1095 |
/**
|
1096 |
* Obtiene la lista de paletas asociadas al grid
|
1097 |
* @return Lista de objetos GridPalette
|
1098 |
*/
|
1099 |
public ColorTable getPalette() {
|
1100 |
return palette;
|
1101 |
} |
1102 |
|
1103 |
/**
|
1104 |
* Obtiene el n?mero de bandas del grid o 0 si no tiene buffer de
|
1105 |
* datos asociado.
|
1106 |
* @return N?mero de bandas
|
1107 |
*/
|
1108 |
public int calculateStatistics() { |
1109 |
if(rasterBuf != null) |
1110 |
return rasterBuf.getBandCount();
|
1111 |
return 0; |
1112 |
} |
1113 |
|
1114 |
/**
|
1115 |
* Asigna la lista de paletas asociadas al grid
|
1116 |
* @param palette Lista de objetos GridPalette
|
1117 |
*/
|
1118 |
public void setPalette(ColorTable palette) { |
1119 |
this.palette = palette;
|
1120 |
} |
1121 |
|
1122 |
/**
|
1123 |
* Obtiene la lista de filtros.
|
1124 |
* @return Lista de filtros.
|
1125 |
*/
|
1126 |
public RasterFilterList getFilterList(){
|
1127 |
return filterList;
|
1128 |
} |
1129 |
|
1130 |
/**
|
1131 |
* Asigna la lista de filtros
|
1132 |
* @param filterList
|
1133 |
*/
|
1134 |
public void setFilterList(RasterFilterList filterList) { |
1135 |
this.filterList = filterList;
|
1136 |
} |
1137 |
|
1138 |
/**
|
1139 |
*Aplica la lista de filtros sobre el buffer
|
1140 |
* @throws FilterAddException
|
1141 |
* @throws InterruptedException
|
1142 |
*/
|
1143 |
public void applyFilters() throws ProcessInterruptedException, FilterAddException { |
1144 |
if (filterList == null) |
1145 |
return;
|
1146 |
|
1147 |
filterList.setInitRasterBuf(rasterBuf); |
1148 |
|
1149 |
filterList.addEnvParam("GridExtent", getGridExtent());
|
1150 |
filterList.addEnvParam("WindowExtent", getWindowExtent());
|
1151 |
|
1152 |
filterList.execute(); |
1153 |
if(filterList.getResult() != null) |
1154 |
rasterBuf = (RasterBuffer) filterList.getResult(); |
1155 |
dataType = rasterBuf.getDataType(); |
1156 |
} |
1157 |
|
1158 |
/*
|
1159 |
* (non-Javadoc)
|
1160 |
* @see org.gvsig.fmap.dal.coverage.grid.Grid#getRasterBuf()
|
1161 |
*/
|
1162 |
public Buffer getRasterBuf() { |
1163 |
return rasterBuf;
|
1164 |
} |
1165 |
|
1166 |
/**
|
1167 |
* Obtiene el objeto que calcula las estad?sticas del Grid
|
1168 |
* @return IBasicStats
|
1169 |
*/
|
1170 |
public BasicStats getStatistics() {
|
1171 |
return statistic;
|
1172 |
} |
1173 |
|
1174 |
/**
|
1175 |
* Asigna la banda sobre la que se realizan las operaciones. Por defecto es la banda 0
|
1176 |
* con lo que para el uso de MDTs no habr? que modificar este valor.
|
1177 |
* @param band Banda sobre la que se realizan las operaciones.
|
1178 |
*/
|
1179 |
public void setBandToOperate(int band) { |
1180 |
if(writer != null) |
1181 |
writer.setBandToOperate(band); |
1182 |
if(reader != null) |
1183 |
reader.setBandToOperate(band); |
1184 |
if(statistic != null) |
1185 |
statistic.setBandToOperate(band); |
1186 |
} |
1187 |
|
1188 |
/**
|
1189 |
* Obtiene el extent de la ventana seleccionada para petici?n de datos
|
1190 |
* @return GridExtent
|
1191 |
*/
|
1192 |
public GridExtent getWindowExtent() {
|
1193 |
return windowExtent;
|
1194 |
} |
1195 |
|
1196 |
/*
|
1197 |
* (non-Javadoc)
|
1198 |
* @see org.gvsig.fmap.dal.coverage.grid.Grid#getGridExtent()
|
1199 |
*/
|
1200 |
public GridExtent getGridExtent() {
|
1201 |
return layerExtent;
|
1202 |
} |
1203 |
|
1204 |
/*
|
1205 |
* (non-Javadoc)
|
1206 |
* @see org.gvsig.tools.dispose.Disposable#dispose()
|
1207 |
*/
|
1208 |
public void dispose() { |
1209 |
if (rasterBuf != null) |
1210 |
rasterBuf.dispose(); |
1211 |
if(reader != null) |
1212 |
reader.dispose(); |
1213 |
if(writer != null) |
1214 |
writer.dispose(); |
1215 |
if(statistic != null) |
1216 |
statistic.dispose(); |
1217 |
//if (filterList != null)
|
1218 |
//filterList.free();
|
1219 |
if (writer != null) |
1220 |
writer.dispose(); |
1221 |
try {
|
1222 |
finalize(); |
1223 |
} catch (Throwable e) { |
1224 |
} |
1225 |
} |
1226 |
|
1227 |
/*
|
1228 |
* (non-Javadoc)
|
1229 |
* @see java.lang.Object#finalize()
|
1230 |
*/
|
1231 |
protected void finalize() throws Throwable { |
1232 |
bands = null;
|
1233 |
rasterBuf = null;
|
1234 |
reader = null;
|
1235 |
writer = null;
|
1236 |
windowExtent = null;
|
1237 |
layerExtent = null;
|
1238 |
statistic = null;
|
1239 |
palette = null;
|
1240 |
filterList = null;
|
1241 |
super.finalize();
|
1242 |
} |
1243 |
} |