root / trunk / libraries / libRaster / src / org / gvsig / raster / dataset / io / MemoryRasterDriver.java @ 11207
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/*
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* Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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*
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* Copyright (C) 2004-5.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* cresques@gmail.com
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*/
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package org.gvsig.raster.dataset.io; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import org.cresques.cts.ICoordTrans; |
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import org.cresques.cts.IProjection; |
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import org.gvsig.raster.dataset.BandList; |
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import org.gvsig.raster.dataset.FileNotOpenException; |
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import org.gvsig.raster.dataset.GeoInfo; |
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import org.gvsig.raster.dataset.IBuffer; |
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import org.gvsig.raster.dataset.InvalidSetViewException; |
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import org.gvsig.raster.dataset.NotSupportedExtensionException; |
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import org.gvsig.raster.dataset.RasterDataset; |
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import org.gvsig.raster.dataset.RasterDriverException; |
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import org.gvsig.raster.shared.Extent; |
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import org.gvsig.raster.util.RasterUtilities; |
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import org.gvsig.raster.util.extensionPoints.ExtensionPoints; |
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import org.gvsig.raster.util.extensionPoints.ExtensionPointsSingleton; |
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/**
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* Driver para datos cargados en un objeto IBuffer
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*
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*/
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public class MemoryRasterDriver extends RasterDataset { |
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private Extent v = null; |
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private IBuffer buffer = null; |
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static {
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ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
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extensionPoints.add("RasterDriver", new MemoryRasterDriverParam().getFormatID(), MemoryRasterDriver.class); |
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} |
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/**
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* Constructor. Asigna el buffer de datos y la extensi?n
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* @param proj Proyecci?n
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* @param buf Buffer
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* @throws NotSupportedExtensionException
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*/
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public MemoryRasterDriver(IProjection proj, Object buf)throws NotSupportedExtensionException { |
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super(null, null); |
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if(!(buf instanceof MemoryRasterDriverParam)) |
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throw new NotSupportedExtensionException("Buffer not supported"); |
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this.extent = this.requestExtent = ((MemoryRasterDriverParam)buf).getExtent(); |
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this.buffer = ((MemoryRasterDriverParam)buf).getBuffer();
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if(buffer == null) |
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throw new NotSupportedExtensionException("Buffer invalid"); |
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if(extent == null) { |
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extent = requestExtent = new Extent(0, buffer.getHeight(), buffer.getWidth(), 0); |
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} |
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load(); |
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bandCount = buffer.getBandCount(); |
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//Obtenemos el tipo de dato de gdal y lo convertimos el de RasterBuf
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setDataType(buffer.getDataType()); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.dataset.GeoInfo#load()
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*/
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public GeoInfo load() {
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return this; |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.dataset.GeoInfo#close()
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*/
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public void close() { |
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} |
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/**
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* Asigna el extent de la vista actual.
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*/
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public void setView(Extent e) { |
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v = new Extent(e.minX(), e.minY(), e.maxX(), e.maxY());
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} |
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/**
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* Calcula la transformaci?n que se produce sobre la vista cuando la imagen tiene un fichero .rmf
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* asociado. En Gdal el origen de coordenadas en Y es el valor m?nimo y crece hasta el m?ximo. De la
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* misma forma calcula la matriz de transformaci?n de la cabecera del fichero o del world file asociado
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* @param originX Origen de la imagen en la coordenada X
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* @param originY Origen de la imagen en la coordenada Y
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*/
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public void setExtentTransform(double originX, double originY, double psX, double psY) { |
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transformRMF.setToTranslation(originX, originY); |
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transformRMF.scale(psX, psY); |
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} |
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/**
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* Obtiene extent de la vista actual
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*/
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public Extent getView() {
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return v;
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} |
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/**
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* Obtiene la anchura del fichero
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*/
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public int getWidth() { |
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return buffer.getWidth();
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} |
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/**
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* Obtiene la altura del fichero
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*/
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public int getHeight() { |
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return buffer.getHeight();
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} |
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/*
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* (non-Javadoc)
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* @see org.cresques.geo.Projected#reProject(org.cresques.cts.ICoordTrans)
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*/
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public void reProject(ICoordTrans rp) { |
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} |
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/**
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* Obtiene la orientaci?n de la imagen a partir del signo del tama?o de pixel para poder
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* asignarlo en el setView. Esto es util para poder conocer como debe leerse la image,
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* de abajo a arriba, de arriba a abajo, de izquierda a derecha o de derecha a izquierda.
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* La posici?n habitual es la que el pixel size en X es positivo y en Y negativo leyendose
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* en este caso las X de menor a mayor y las Y de mayor a menor. Los casos posibles son:
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* <UL>
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* <LI><B>X > 0; Y < 0;</B> {true, false}</LI>
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* <LI><B>X > 0; Y > 0;</B> {true, true}</LI>
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* <LI><B>X < 0; Y > 0;</B> {false, true}</LI>
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* <LI><B>X < 0; Y < 0;</B> {false, false}</LI>
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* </UL>
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*
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* @return
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*/
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private boolean[] getOrientation(){ |
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boolean[] orientation = {true, false}; |
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return orientation;
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.GeoRasterFile#getData(int, int, int)
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*/
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public Object getData(int x, int y, int band) { |
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if(buffer.getDataType() == IBuffer.TYPE_BYTE){
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return new Byte(buffer.getElemByte(y, x, band)); |
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}else if(buffer.getDataType() == IBuffer.TYPE_SHORT){ |
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return new Short(buffer.getElemShort(y, x, band)); |
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}else if(buffer.getDataType() == IBuffer.TYPE_INT){ |
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return new Integer(buffer.getElemInt(y, x, band)); |
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}else if(buffer.getDataType() == IBuffer.TYPE_FLOAT){ |
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return new Float(buffer.getElemFloat(y, x, band)); |
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}else if(buffer.getDataType() == IBuffer.TYPE_DOUBLE){ |
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return new Double(buffer.getElemDouble(y, x, band)); |
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} |
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return null; |
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} |
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/**
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* Devuelve el tama?o de bloque
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* @return Tama?o de bloque
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*/
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public int getBlockSize(){ |
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return 0; |
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} |
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/**
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* Obtiene el flag que dice si la imagen est? o no georreferenciada
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* @return true si est? georreferenciada y false si no lo est?.
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*/
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public boolean isGeoreferenced() { |
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return (this.extent != null); |
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} |
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/**
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* Informa de si el driver ha supersampleado en el ?ltimo dibujado. Es el driver el que colocar?
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* el valor de esta variable cada vez que dibuja.
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* @return true si se ha supersampleado y false si no se ha hecho.
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*/
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public boolean isSupersampling() { |
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return false; |
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} |
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/**
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* Obtiene los par?metros de la transformaci?n af?n
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* <UL>
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* <LI>[1]tama?o de pixel en X</LI>
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* <LI>[2]rotaci?n en X</LI>
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* <LI>[4]rotaci?n en Y</LI>
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* <LI>[5]tama?o de pixel en Y</LI>
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* <LI>[0]origen en X</LI>
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* <LI>[3]origen en Y</LI>
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* </UL>
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* Este m?todo debe ser reimplementado por el driver si tiene esta informaci?n.
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* @return vector de double con los elementos de la transformaci?n af?n.
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*/
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public double[] getTransform(){ |
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return new double[]{extent.minX(), |
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extent.width() / buffer.getWidth(), |
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0.0,
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extent.maxY(), |
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0.0,
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extent.height() / buffer.getHeight()}; |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.driver.GeoRasterFile#rasterToWorld(java.awt.geom.Point2D)
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*/
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public Point2D rasterToWorld(Point2D pt) { |
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double x = extent.minX() + ((pt.getX() * (extent.maxX() - extent.minX())) / ((double) buffer.getWidth())); |
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double y = extent.maxY() - ((pt.getY() * (extent.maxY() - extent.minY())) / ((double) buffer.getHeight())); |
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Point2D ptRes = new Point2D.Double(x, y); |
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return ptRes;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.driver.GeoRasterFile#worldToRaster(java.awt.geom.Point2D)
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*/
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public Point2D worldToRaster(Point2D pt) { |
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double x = (((double) buffer.getWidth()) / (extent.maxX() - extent.minX())) * (pt.getX() - extent.minX()); |
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double y = (((double) buffer.getHeight()) / (extent.maxY() - extent.minY())) * (extent.maxY() - pt.getY()); |
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Point2D ptRes = new Point2D.Double(x, y); |
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return ptRes;
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} |
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/**
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* @return Returns the dataType.
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*/
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public int getDataType() { |
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return buffer.getDataType();
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} |
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/**
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* Ajusta los puntos pasados por par?metro a los l?mites del buffer. Es decir si alguno excede
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* los l?mites por arriba o por abajo los ajusta.
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* @param begin Punto inicial
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* @param end Punto final
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*/
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private void adjustPointsToBufferLimits(Point2D begin, Point2D end) { |
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if(begin.getX() < 0) |
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begin.setLocation(0, begin.getY());
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if(begin.getY() > buffer.getHeight())
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begin.setLocation(begin.getX(), buffer.getHeight()); |
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if(end.getY() < 0) |
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end.setLocation(begin.getX(), 0);
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if(end.getX() > buffer.getWidth())
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begin.setLocation(buffer.getWidth(), begin.getY()); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.dataset.RasterDataset#getWindowRaster(double, double, double, double, org.gvsig.raster.dataset.BandList, org.gvsig.raster.dataset.IBuffer, boolean)
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*/
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public IBuffer getWindowRaster(double x, double y, double w, double h, BandList bandList, IBuffer rasterBuf, boolean adjustToExtent) { |
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Point2D begin = worldToRaster(new Point2D.Double(x, y)); |
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Point2D end = worldToRaster(new Point2D.Double(x + w, y - h)); |
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setView(new Extent(x, y, x + w, y - h));
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adjustPointsToBufferLimits(begin, end); |
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switch(buffer.getDataType()){
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case IBuffer.TYPE_BYTE: writeByteBuffer(rasterBuf, 1, 1, begin, bandList); break; |
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case IBuffer.TYPE_SHORT: writeShortBuffer(rasterBuf, 1, 1, begin, bandList); break; |
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case IBuffer.TYPE_INT: writeIntBuffer(rasterBuf, 1, 1, begin, bandList); break; |
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case IBuffer.TYPE_FLOAT: writeFloatBuffer(rasterBuf, 1, 1, begin, bandList); break; |
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case IBuffer.TYPE_DOUBLE: writeDoubleBuffer(rasterBuf, 1, 1, begin, bandList); break; |
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} |
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return rasterBuf;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.dataset.RasterDataset#getWindowRaster(double, double, double, double, int, int, org.gvsig.raster.dataset.BandList, org.gvsig.raster.dataset.IBuffer, boolean)
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*/
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public IBuffer getWindowRaster(double minX, double minY, double maxX, double maxY, int bufWidth, int bufHeight, BandList bandList, IBuffer rasterBuf, boolean adjustToExtent) { |
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Point2D begin = worldToRaster(new Point2D.Double(minX, maxY)); |
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Point2D end = worldToRaster(new Point2D.Double(maxX, minY)); |
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setView(new Extent(minX, minY, maxX, maxY));
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adjustPointsToBufferLimits(begin, end); |
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//Ancho y alto en pixels (double) del area seleccionada.
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double w = Math.abs(end.getX() - begin.getX()); |
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double h = Math.abs(end.getY() - begin.getY()); |
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//Relaci?n entre el n?mero de pixels del buffer origen (area seleccionada) y el destino
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double stepX = w / ((double)bufWidth); |
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double stepY = h / ((double)bufHeight); |
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//Escritura separada en 5 llamadas para mejorar el rendimiento
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switch(buffer.getDataType()){
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case IBuffer.TYPE_BYTE: writeByteBuffer(rasterBuf, stepX, stepY, begin, bandList); break; |
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case IBuffer.TYPE_SHORT: writeShortBuffer(rasterBuf, stepX, stepY, begin, bandList); break; |
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case IBuffer.TYPE_INT: writeIntBuffer(rasterBuf, stepX, stepY, begin, bandList); break; |
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case IBuffer.TYPE_FLOAT: writeFloatBuffer(rasterBuf, stepX, stepY, begin, bandList); break; |
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case IBuffer.TYPE_DOUBLE: writeDoubleBuffer(rasterBuf, stepX, stepY, begin, bandList); break; |
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} |
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/*int xPx = 0, yPx = 0;
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for (int iBand = 0; iBand < rasterBuf.getBandCount(); iBand++) {
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yPx = 0;
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for(double row = begin.getY(); yPx < bufHeight; row += stepY) {
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xPx = 0;
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for(double col = begin.getX(); xPx < bufWidth; col += stepX) {
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switch(buffer.getDataType()){
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case IBuffer.TYPE_BYTE: rasterBuf.setElem(yPx, xPx, iBand, buffer.getElemByte((int)row, (int)col, iBand)); break;
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case IBuffer.TYPE_SHORT: rasterBuf.setElem(yPx, xPx, iBand, buffer.getElemShort((int)row, (int)col, iBand)); break;
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case IBuffer.TYPE_INT: rasterBuf.setElem(yPx, xPx, iBand, buffer.getElemInt((int)row, (int)col, iBand)); break;
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case IBuffer.TYPE_FLOAT: rasterBuf.setElem(yPx, xPx, iBand, buffer.getElemFloat((int)row, (int)col, iBand)); break;
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case IBuffer.TYPE_DOUBLE: rasterBuf.setElem(yPx, xPx, iBand, buffer.getElemDouble((int)row, (int)col, iBand)); break;
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}
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xPx ++;
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}
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yPx ++;
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}
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}*/
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return rasterBuf;
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} |
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/**
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* Escribe sobre el buffer pasado por par?metro los valores solicitados, desde el buffer de la clase. Los valores
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* se solicitan a trav?s de los par?metros. En ellos se especifica el tama?o del buffer de destino, las bandas a
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* escribir, el punto inicial en coordenadas pixel (double) y el incremento.
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* @param rasterBuf Buffer donde se escriben los datos
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* @param stepX Incremento en X. Cada vez que se escribe un pixel en X se incrementa el contador en stepX pixels. Esto es necesario
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* ya que el buffer destino no tiene porque tener el mismo ancho que el de origen. Este valor suele ser ancho_buffer_origen / ancho_buffer_destino.
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* @param stepY Incremento en Y. Cada vez que se escribe un pixel en Y se incrementa el contador en stepY pixels. Esto es necesario
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* ya que el buffer destino no tiene porque tener el mismo alto que el de origen. Este valor suele ser alto_buffer_origen / alto_buffer_destino.
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* @param begin pixel donde se comienza a leer en el buffer de origen. Este valor es decimal ya que no tiene porque empezar a leerse al principio
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* del pixel. Esto es util cuando se supersamplea.
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*/
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private void writeByteBuffer(IBuffer rasterBuf, double stepX, double stepY, Point2D begin, BandList bandList) { |
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int xPx = 0, yPx = 0; |
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for (int iBand = 0; iBand < buffer.getBandCount(); iBand++) { |
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int[] drawableBands = bandList.getBufferBandToDraw(this.getFName(), iBand); |
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if(drawableBands == null || (drawableBands.length == 1 && drawableBands[0] == -1)) |
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continue;
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for(int drawBands = 0; drawBands < drawableBands.length; drawBands++) { |
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yPx = 0;
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for(double row = begin.getY(); (yPx < rasterBuf.getHeight() && row < buffer.getHeight()); row += stepY) { |
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xPx = 0;
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for(double col = begin.getX(); (xPx < rasterBuf.getWidth() && col < buffer.getWidth()); col += stepX) { |
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rasterBuf.setElem(yPx, xPx, iBand, buffer.getElemByte((int)row, (int)col, iBand)); |
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xPx ++; |
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} |
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yPx ++; |
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} |
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} |
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} |
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} |
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|
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/**
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* Escribe sobre el buffer pasado por par?metro los valores solicitados, desde el buffer de la clase. Los valores
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* se solicitan a trav?s de los par?metros. En ellos se especifica el tama?o del buffer de destino, las bandas a
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* escribir, el punto inicial en coordenadas pixel (double) y el incremento.
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* @param rasterBuf Buffer donde se escriben los datos
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* @param stepX Incremento en X. Cada vez que se escribe un pixel en X se incrementa el contador en stepX pixels. Esto es necesario
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* ya que el buffer destino no tiene porque tener el mismo ancho que el de origen. Este valor suele ser ancho_buffer_origen / ancho_buffer_destino.
|
| 391 |
* @param stepY Incremento en Y. Cada vez que se escribe un pixel en Y se incrementa el contador en stepY pixels. Esto es necesario
|
| 392 |
* ya que el buffer destino no tiene porque tener el mismo alto que el de origen. Este valor suele ser alto_buffer_origen / alto_buffer_destino.
|
| 393 |
* @param begin pixel donde se comienza a leer en el buffer de origen. Este valor es decimal ya que no tiene porque empezar a leerse al principio
|
| 394 |
* del pixel. Esto es util cuando se supersamplea.
|
| 395 |
*/
|
| 396 |
private void writeShortBuffer(IBuffer rasterBuf, double stepX, double stepY, Point2D begin, BandList bandList) { |
| 397 |
int xPx = 0, yPx = 0; |
| 398 |
for (int iBand = 0; iBand < buffer.getBandCount(); iBand++) { |
| 399 |
int[] drawableBands = bandList.getBufferBandToDraw(this.getFName(), iBand); |
| 400 |
if(drawableBands == null || (drawableBands.length == 1 && drawableBands[0] == -1)) |
| 401 |
continue;
|
| 402 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++) { |
| 403 |
yPx = 0;
|
| 404 |
for(double row = begin.getY(); yPx < rasterBuf.getHeight(); row += stepY) { |
| 405 |
xPx = 0;
|
| 406 |
for(double col = begin.getX(); xPx < rasterBuf.getWidth(); col += stepX) { |
| 407 |
rasterBuf.setElem(yPx, xPx, iBand, buffer.getElemShort((int)row, (int)col, iBand)); |
| 408 |
xPx ++; |
| 409 |
} |
| 410 |
yPx ++; |
| 411 |
} |
| 412 |
} |
| 413 |
} |
| 414 |
} |
| 415 |
|
| 416 |
/**
|
| 417 |
* Escribe sobre el buffer pasado por par?metro los valores solicitados, desde el buffer de la clase. Los valores
|
| 418 |
* se solicitan a trav?s de los par?metros. En ellos se especifica el tama?o del buffer de destino, las bandas a
|
| 419 |
* escribir, el punto inicial en coordenadas pixel (double) y el incremento.
|
| 420 |
* @param rasterBuf Buffer donde se escriben los datos
|
| 421 |
* @param stepX Incremento en X. Cada vez que se escribe un pixel en X se incrementa el contador en stepX pixels. Esto es necesario
|
| 422 |
* ya que el buffer destino no tiene porque tener el mismo ancho que el de origen. Este valor suele ser ancho_buffer_origen / ancho_buffer_destino.
|
| 423 |
* @param stepY Incremento en Y. Cada vez que se escribe un pixel en Y se incrementa el contador en stepY pixels. Esto es necesario
|
| 424 |
* ya que el buffer destino no tiene porque tener el mismo alto que el de origen. Este valor suele ser alto_buffer_origen / alto_buffer_destino.
|
| 425 |
* @param begin pixel donde se comienza a leer en el buffer de origen. Este valor es decimal ya que no tiene porque empezar a leerse al principio
|
| 426 |
* del pixel. Esto es util cuando se supersamplea.
|
| 427 |
*/
|
| 428 |
private void writeIntBuffer(IBuffer rasterBuf, double stepX, double stepY, Point2D begin, BandList bandList) { |
| 429 |
int xPx = 0, yPx = 0; |
| 430 |
for (int iBand = 0; iBand < buffer.getBandCount(); iBand++) { |
| 431 |
int[] drawableBands = bandList.getBufferBandToDraw(this.getFName(), iBand); |
| 432 |
if(drawableBands == null || (drawableBands.length == 1 && drawableBands[0] == -1)) |
| 433 |
continue;
|
| 434 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++) { |
| 435 |
yPx = 0;
|
| 436 |
for(double row = begin.getY(); yPx < rasterBuf.getHeight(); row += stepY) { |
| 437 |
xPx = 0;
|
| 438 |
for(double col = begin.getX(); xPx < rasterBuf.getWidth(); col += stepX) { |
| 439 |
rasterBuf.setElem(yPx, xPx, iBand, buffer.getElemInt((int)row, (int)col, iBand)); |
| 440 |
xPx ++; |
| 441 |
} |
| 442 |
yPx ++; |
| 443 |
} |
| 444 |
} |
| 445 |
} |
| 446 |
} |
| 447 |
|
| 448 |
/**
|
| 449 |
* Escribe sobre el buffer pasado por par?metro los valores solicitados, desde el buffer de la clase. Los valores
|
| 450 |
* se solicitan a trav?s de los par?metros. En ellos se especifica el tama?o del buffer de destino, las bandas a
|
| 451 |
* escribir, el punto inicial en coordenadas pixel (double) y el incremento.
|
| 452 |
* @param rasterBuf Buffer donde se escriben los datos
|
| 453 |
* @param stepX Incremento en X. Cada vez que se escribe un pixel en X se incrementa el contador en stepX pixels. Esto es necesario
|
| 454 |
* ya que el buffer destino no tiene porque tener el mismo ancho que el de origen. Este valor suele ser ancho_buffer_origen / ancho_buffer_destino.
|
| 455 |
* @param stepY Incremento en Y. Cada vez que se escribe un pixel en Y se incrementa el contador en stepY pixels. Esto es necesario
|
| 456 |
* ya que el buffer destino no tiene porque tener el mismo alto que el de origen. Este valor suele ser alto_buffer_origen / alto_buffer_destino.
|
| 457 |
* @param begin pixel donde se comienza a leer en el buffer de origen. Este valor es decimal ya que no tiene porque empezar a leerse al principio
|
| 458 |
* del pixel. Esto es util cuando se supersamplea.
|
| 459 |
*/
|
| 460 |
private void writeFloatBuffer(IBuffer rasterBuf, double stepX, double stepY, Point2D begin, BandList bandList) { |
| 461 |
int xPx = 0, yPx = 0; |
| 462 |
for (int iBand = 0; iBand < buffer.getBandCount(); iBand++) { |
| 463 |
int[] drawableBands = bandList.getBufferBandToDraw(this.getFName(), iBand); |
| 464 |
if(drawableBands == null || (drawableBands.length == 1 && drawableBands[0] == -1)) |
| 465 |
continue;
|
| 466 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++) { |
| 467 |
yPx = 0;
|
| 468 |
for(double row = begin.getY(); yPx < rasterBuf.getHeight(); row += stepY) { |
| 469 |
xPx = 0;
|
| 470 |
for(double col = begin.getX(); xPx < rasterBuf.getWidth(); col += stepX) { |
| 471 |
rasterBuf.setElem(yPx, xPx, iBand, buffer.getElemFloat((int)row, (int)col, iBand)); |
| 472 |
xPx ++; |
| 473 |
} |
| 474 |
yPx ++; |
| 475 |
} |
| 476 |
} |
| 477 |
} |
| 478 |
} |
| 479 |
|
| 480 |
/**
|
| 481 |
* Escribe sobre el buffer pasado por par?metro los valores solicitados, desde el buffer de la clase. Los valores
|
| 482 |
* se solicitan a trav?s de los par?metros. En ellos se especifica el tama?o del buffer de destino, las bandas a
|
| 483 |
* escribir, el punto inicial en coordenadas pixel (double) y el incremento.
|
| 484 |
* @param rasterBuf Buffer donde se escriben los datos
|
| 485 |
* @param stepX Incremento en X. Cada vez que se escribe un pixel en X se incrementa el contador en stepX pixels. Esto es necesario
|
| 486 |
* ya que el buffer destino no tiene porque tener el mismo ancho que el de origen. Este valor suele ser ancho_buffer_origen / ancho_buffer_destino.
|
| 487 |
* @param stepY Incremento en Y. Cada vez que se escribe un pixel en Y se incrementa el contador en stepY pixels. Esto es necesario
|
| 488 |
* ya que el buffer destino no tiene porque tener el mismo alto que el de origen. Este valor suele ser alto_buffer_origen / alto_buffer_destino.
|
| 489 |
* @param begin pixel donde se comienza a leer en el buffer de origen. Este valor es decimal ya que no tiene porque empezar a leerse al principio
|
| 490 |
* del pixel. Esto es util cuando se supersamplea.
|
| 491 |
*/
|
| 492 |
private void writeDoubleBuffer(IBuffer rasterBuf, double stepX, double stepY, Point2D begin, BandList bandList) { |
| 493 |
int xPx = 0, yPx = 0; |
| 494 |
for (int iBand = 0; iBand < buffer.getBandCount(); iBand++) { |
| 495 |
int[] drawableBands = bandList.getBufferBandToDraw(this.getFName(), iBand); |
| 496 |
if(drawableBands == null || (drawableBands.length == 1 && drawableBands[0] == -1)) |
| 497 |
continue;
|
| 498 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++) { |
| 499 |
yPx = 0;
|
| 500 |
for(double row = begin.getY(); yPx < rasterBuf.getHeight(); row += stepY) { |
| 501 |
xPx = 0;
|
| 502 |
for(double col = begin.getX(); xPx < rasterBuf.getWidth(); col += stepX) { |
| 503 |
rasterBuf.setElem(yPx, xPx, iBand, buffer.getElemDouble((int)row, (int)col, iBand)); |
| 504 |
xPx ++; |
| 505 |
} |
| 506 |
yPx ++; |
| 507 |
} |
| 508 |
} |
| 509 |
} |
| 510 |
} |
| 511 |
|
| 512 |
/*
|
| 513 |
* (non-Javadoc)
|
| 514 |
* @see org.gvsig.raster.dataset.RasterDataset#getWindowRaster(int, int, int, int, org.gvsig.raster.dataset.BandList, org.gvsig.raster.dataset.IBuffer)
|
| 515 |
*/
|
| 516 |
public IBuffer getWindowRaster(int x, int y, int w, int h, BandList bandList, IBuffer rasterBuf) { |
| 517 |
setView( |
| 518 |
new Extent( RasterUtilities.getMapRectFromPxRect(getExtent().toRectangle2D(),
|
| 519 |
getWidth(), |
| 520 |
getHeight(), |
| 521 |
new Rectangle2D.Double(x, y, w, h))) |
| 522 |
); |
| 523 |
|
| 524 |
for(int iBand = 0; iBand < buffer.getBandCount(); iBand ++){ |
| 525 |
int[] drawableBands = bandList.getBufferBandToDraw(this.getFName(), iBand); |
| 526 |
if(drawableBands == null || (drawableBands.length == 1 && drawableBands[0] == -1)) |
| 527 |
continue;
|
| 528 |
if(buffer.getDataType() == IBuffer.TYPE_BYTE) {
|
| 529 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++) { |
| 530 |
for(int line = y; line < (y + h); line ++) |
| 531 |
for(int col = x; col < (x + w); col ++) |
| 532 |
rasterBuf.setElem((line - y), (col - x), drawableBands[drawBands], buffer.getElemByte(line, col, drawableBands[drawBands])); |
| 533 |
} |
| 534 |
}else if(buffer.getDataType() == IBuffer.TYPE_SHORT){ |
| 535 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++){ |
| 536 |
for(int line = y; line < (y + h); line ++) |
| 537 |
for(int col = x; col < (x + w); col ++) |
| 538 |
rasterBuf.setElem((line - y), (col - x), drawableBands[drawBands], buffer.getElemShort(line, col, drawableBands[drawBands])); |
| 539 |
} |
| 540 |
}else if(buffer.getDataType() == IBuffer.TYPE_INT){ |
| 541 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++){ |
| 542 |
for(int line = y; line < (y + h); line ++) |
| 543 |
for(int col = x; col < (x + w); col ++) |
| 544 |
rasterBuf.setElem((line - y), (col - x), drawableBands[drawBands], buffer.getElemInt(line, col, drawableBands[drawBands])); |
| 545 |
} |
| 546 |
}else if(buffer.getDataType() == IBuffer.TYPE_FLOAT){ |
| 547 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++){ |
| 548 |
for(int line = y; line < (y + h); line ++) |
| 549 |
for(int col = x; col < (x + w); col ++) |
| 550 |
rasterBuf.setElem((line - y), (col - x), drawableBands[drawBands], buffer.getElemFloat(line, col, drawableBands[drawBands])); |
| 551 |
} |
| 552 |
}else if(buffer.getDataType() == IBuffer.TYPE_DOUBLE){ |
| 553 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++){ |
| 554 |
for(int line = y; line < (y + h); line ++) |
| 555 |
for(int col = x; col < (x + w); col ++) |
| 556 |
rasterBuf.setElem((line - y), (col - x), drawableBands[drawBands], buffer.getElemDouble(line, col, drawableBands[drawBands])); |
| 557 |
} |
| 558 |
} |
| 559 |
} |
| 560 |
return rasterBuf;
|
| 561 |
} |
| 562 |
|
| 563 |
/*
|
| 564 |
* (non-Javadoc)
|
| 565 |
* @see org.gvsig.raster.dataset.RasterDataset#getWindowRaster(int, int, int, int, int, int, org.gvsig.raster.dataset.BandList, org.gvsig.raster.dataset.IBuffer)
|
| 566 |
*/
|
| 567 |
public IBuffer getWindowRaster(int x, int y, int w, int h, int bufWidth, int bufHeight, BandList bandList, IBuffer rasterBuf) { |
| 568 |
setView( |
| 569 |
new Extent( RasterUtilities.getMapRectFromPxRect(getExtent().toRectangle2D(),
|
| 570 |
getWidth(), |
| 571 |
getHeight(), |
| 572 |
new Rectangle2D.Double(x, y, w, h))) |
| 573 |
); |
| 574 |
|
| 575 |
//Relaci?n entre el n?mero de pixels del buffer origen (area seleccionada) y el destino
|
| 576 |
double stepX = w / ((double)bufWidth); |
| 577 |
double stepY = h / ((double)bufHeight); |
| 578 |
switch(buffer.getDataType()){
|
| 579 |
case IBuffer.TYPE_BYTE: writeByteBuffer(rasterBuf, stepX, stepY, new Point2D.Double(x, y), bandList); break; |
| 580 |
case IBuffer.TYPE_SHORT: writeShortBuffer(rasterBuf, stepX, stepY, new Point2D.Double(x, y), bandList); break; |
| 581 |
case IBuffer.TYPE_INT: writeIntBuffer(rasterBuf, stepX, stepY, new Point2D.Double(x, y), bandList); break; |
| 582 |
case IBuffer.TYPE_FLOAT: writeFloatBuffer(rasterBuf, stepX, stepY, new Point2D.Double(x, y), bandList); break; |
| 583 |
case IBuffer.TYPE_DOUBLE: writeDoubleBuffer(rasterBuf, stepX, stepY, new Point2D.Double(x, y), bandList); break; |
| 584 |
} |
| 585 |
return rasterBuf;
|
| 586 |
} |
| 587 |
|
| 588 |
/*
|
| 589 |
* (non-Javadoc)
|
| 590 |
* @see org.gvsig.raster.dataset.RasterDataset#readCompleteLine(int, int)
|
| 591 |
*/
|
| 592 |
public Object readCompleteLine(int line, int band) throws InvalidSetViewException, FileNotOpenException, RasterDriverException { |
| 593 |
switch(buffer.getDataType()){
|
| 594 |
case IBuffer.TYPE_BYTE: return buffer.getLineFromBandByte(line, band); |
| 595 |
case IBuffer.TYPE_SHORT: return buffer.getLineFromBandShort(line, band); |
| 596 |
case IBuffer.TYPE_INT: return buffer.getLineFromBandInt(line, band); |
| 597 |
case IBuffer.TYPE_FLOAT: return buffer.getLineFromBandFloat(line, band); |
| 598 |
case IBuffer.TYPE_DOUBLE: return buffer.getLineFromBandDouble(line, band); |
| 599 |
} |
| 600 |
return null; |
| 601 |
} |
| 602 |
|
| 603 |
/*
|
| 604 |
* (non-Javadoc)
|
| 605 |
* @see org.gvsig.raster.dataset.RasterDataset#readBlock(int, int)
|
| 606 |
*/
|
| 607 |
public Object readBlock(int pos, int blockHeight) throws InvalidSetViewException, FileNotOpenException, RasterDriverException { |
| 608 |
if(pos < 0) |
| 609 |
throw new InvalidSetViewException("Request out of grid"); |
| 610 |
|
| 611 |
if((pos + blockHeight) > buffer.getHeight())
|
| 612 |
blockHeight = Math.abs(buffer.getHeight() - pos);
|
| 613 |
|
| 614 |
switch(buffer.getDataType()){
|
| 615 |
case IBuffer.TYPE_BYTE:
|
| 616 |
byte[][][] bufb = new byte[getBandCount()][][]; |
| 617 |
for (int iBand = 0; iBand < buffer.getBandCount(); iBand++) { |
| 618 |
for (int row = 0; row < blockHeight; row++) { |
| 619 |
bufb[iBand][row] = buffer.getLineFromBandByte(row, iBand); |
| 620 |
} |
| 621 |
} |
| 622 |
return bufb;
|
| 623 |
case IBuffer.TYPE_SHORT:
|
| 624 |
short[][][] bufs = new short[getBandCount()][][]; |
| 625 |
for (int iBand = 0; iBand < buffer.getBandCount(); iBand++) { |
| 626 |
for (int row = 0; row < blockHeight; row++) { |
| 627 |
bufs[iBand][row] = buffer.getLineFromBandShort(row, iBand); |
| 628 |
} |
| 629 |
} |
| 630 |
return bufs;
|
| 631 |
case IBuffer.TYPE_INT:
|
| 632 |
int[][][] bufi = new int[getBandCount()][][]; |
| 633 |
for (int iBand = 0; iBand < buffer.getBandCount(); iBand++) { |
| 634 |
for (int row = 0; row < blockHeight; row++) { |
| 635 |
bufi[iBand][row] = buffer.getLineFromBandInt(row, iBand); |
| 636 |
} |
| 637 |
} |
| 638 |
return bufi;
|
| 639 |
case IBuffer.TYPE_FLOAT:
|
| 640 |
float[][][] buff = new float[getBandCount()][][]; |
| 641 |
for (int iBand = 0; iBand < buffer.getBandCount(); iBand++) { |
| 642 |
for (int row = 0; row < blockHeight; row++) { |
| 643 |
buff[iBand][row] = buffer.getLineFromBandFloat(row, iBand); |
| 644 |
} |
| 645 |
} |
| 646 |
return buff;
|
| 647 |
case IBuffer.TYPE_DOUBLE:
|
| 648 |
double[][][] bufd = new double[getBandCount()][][]; |
| 649 |
for (int iBand = 0; iBand < buffer.getBandCount(); iBand++) { |
| 650 |
for (int row = 0; row < blockHeight; row++) { |
| 651 |
bufd[iBand][row] = buffer.getLineFromBandDouble(row, iBand); |
| 652 |
} |
| 653 |
} |
| 654 |
return bufd;
|
| 655 |
} |
| 656 |
return null; |
| 657 |
} |
| 658 |
|
| 659 |
} |
| 660 |
|
| 661 |
|
| 662 |
|