root / trunk / libraries / libRaster / src / org / gvsig / raster / dataaccess / cache / PageBuffer.java @ 11072
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2006 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*/
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package org.gvsig.raster.dataaccess.cache; |
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import java.io.IOException; |
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import org.gvsig.raster.dataaccess.buffer.IBand; |
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import org.gvsig.raster.dataset.IBuffer; |
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import org.gvsig.raster.util.DataClassList; |
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import org.gvsig.raster.util.Histogram; |
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import org.gvsig.raster.util.HistogramException; |
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/**
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* Esta clase representa una p?gina de cache.Cada p?gina de cach? est? compuesta por
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* varios objetos PageBandBuffer donde cada uno es una p?gina que corresponde a una
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* banda de raster cacheada.
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*
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*
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*/
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public class PageBuffer implements IBuffer { |
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private PageBandBuffer[] pageBandBuffer = null; |
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private int percent = 0; |
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private boolean canceled = false; |
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/**
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* Constructor
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* @param dataType
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* @param width
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* @param height
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* @param bandNr
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* @param malloc
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*/
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public PageBuffer(int dataType, int width, int height, int bandNr, boolean malloc, int nHddPags){ |
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pageBandBuffer = new PageBandBuffer[bandNr];
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for (int i = 0; i < pageBandBuffer.length; i++) |
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pageBandBuffer[i] = new PageBandBuffer(dataType, width, height, 1, malloc, i); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.driver.IBuffer#isBandSwitchable()
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*/
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public boolean isBandSwitchable(){ |
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return false; |
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} |
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/**
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* Asigna la lista de paginas de disco
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* @param hddList Lista de p?ginas de disco
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*/
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public void setHddPages(HddPage[] hddList){ |
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for (int i = 0; i < pageBandBuffer.length; i++) |
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pageBandBuffer[i].setHddPages(hddList); |
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} |
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/**
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* Carga una p?gina especificada en el par?metro nPag con los datos necesarios.
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* Para esto recorre todas las bandas de la p?gina llamando al load de cada una.
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*
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* @param nPag N?mero de p?gina a cargar
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*/
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public void loadPage(int nPag){ |
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for (int i = 0; i < pageBandBuffer.length; i++) |
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pageBandBuffer[i].loadPage(nPag); |
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} |
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/**
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* Salva una p?gina especificada en el par?metro nPag a disco.
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* Para esto recorre todas las bandas de la p?gina llamando al save de cada una.
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*
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* @param nPag N?mero de p?gina a salvar
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* @throws IOException
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*/
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public void savePage(int nPag) throws IOException{ |
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for (int i = 0; i < pageBandBuffer.length; i++) |
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pageBandBuffer[i].savePage(nPag); |
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} |
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public void assign(int band, byte value) { |
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pageBandBuffer[band].assign(0, value);
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} |
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public void assign(int band, short value) { |
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pageBandBuffer[band].assign(0, value);
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} |
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public void assign(int band, int value) { |
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pageBandBuffer[band].assign(0, value);
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} |
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public void assign(int band, float value) { |
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pageBandBuffer[band].assign(0, value);
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} |
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public void assign(int band, double value) { |
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pageBandBuffer[band].assign(0, value);
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} |
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public void assignBand(int nBand, IBand band) { |
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} |
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public void assignBandToNotValid(int iBand) { |
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} |
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public IBuffer cloneBuffer() {
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return null; |
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} |
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public void copyBand(int nBand, IBand band) { |
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} |
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public IBand createBand(byte defaultValue) { |
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return null; |
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} |
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public IBand getBand(int nBand) { |
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return null; |
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} |
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public IBuffer getBandBuffer(int nBand) { |
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return null; |
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} |
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public int getBandCount() { |
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return pageBandBuffer[0].getBandCount(); |
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} |
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public int getDataType() { |
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return pageBandBuffer[0].getDataType(); |
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} |
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public void setDataType(int dataType) { |
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} |
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public int getHeight() { |
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return pageBandBuffer[0].getHeight(); |
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} |
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public int getWidth() { |
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return pageBandBuffer[0].getWidth(); |
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} |
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public byte getByteNoDataValue() { |
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return pageBandBuffer[0].getByteNoDataValue(); |
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} |
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public float getFloatNoDataValue() { |
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return pageBandBuffer[0].getFloatNoDataValue(); |
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} |
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public int getIntNoDataValue() { |
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return pageBandBuffer[0].getIntNoDataValue(); |
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} |
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public double getNoDataValue() { |
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return pageBandBuffer[0].getNoDataValue(); |
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} |
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public double getNotValidValue() { |
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return pageBandBuffer[0].getNotValidValue(); |
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} |
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public short getShortNoDataValue() { |
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return pageBandBuffer[0].getShortNoDataValue(); |
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} |
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public byte getElemByte(int line, int col, int band) { |
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return pageBandBuffer[band].getElemByte(line, col, 0); |
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} |
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public short getElemShort(int line, int col, int band) { |
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return pageBandBuffer[band].getElemShort(line, col, 0); |
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} |
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public int getElemInt(int line, int col, int band) { |
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return pageBandBuffer[band].getElemInt(line, col, 0); |
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} |
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public float getElemFloat(int line, int col, int band) { |
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return pageBandBuffer[band].getElemFloat(line, col, 0); |
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} |
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public double getElemDouble(int line, int col, int band) { |
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return pageBandBuffer[band].getElemDouble(line, col, 0); |
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} |
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public void getElemByte(int line, int col, byte[] data) { |
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for (int i = 0; i < pageBandBuffer.length; i++) |
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data[i] = pageBandBuffer[i].getElemByte(line, col, 0);
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} |
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public void getElemShort(int line, int col, short[] data) { |
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for (int i = 0; i < pageBandBuffer.length; i++) |
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data[i] = pageBandBuffer[i].getElemShort(line, col, 0);
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} |
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public void getElemInt(int line, int col, int[] data) { |
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for (int i = 0; i < pageBandBuffer.length; i++) |
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data[i] = pageBandBuffer[i].getElemInt(line, col, 0);
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} |
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public void getElemFloat(int line, int col, float[] data) { |
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for (int i = 0; i < pageBandBuffer.length; i++) |
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data[i] = pageBandBuffer[i].getElemFloat(line, col, 0);
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} |
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public void getElemDouble(int line, int col, double[] data) { |
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for (int i = 0; i < pageBandBuffer.length; i++) |
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data[i] = pageBandBuffer[i].getElemDouble(line, col, 0);
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} |
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public byte[][] getLineByte(int line) { |
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byte[][] b = new byte[pageBandBuffer.length][]; |
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for (int i = 0; i < pageBandBuffer.length; i++) |
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b[i] = pageBandBuffer[i].getLineByte(line)[0];
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return b;
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} |
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public double[][] getLineDouble(int line) { |
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double[][] d = new double[pageBandBuffer.length][]; |
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for (int i = 0; i < pageBandBuffer.length; i++) |
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d[i] = pageBandBuffer[i].getLineDouble(line)[0];
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return d;
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} |
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public float[][] getLineFloat(int line) { |
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float[][] f = new float[pageBandBuffer.length][]; |
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for (int i = 0; i < pageBandBuffer.length; i++) |
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f[i] = pageBandBuffer[i].getLineFloat(line)[0];
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return f;
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} |
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public int[][] getLineInt(int line) { |
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int[][] in = new int[pageBandBuffer.length][]; |
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for (int i = 0; i < pageBandBuffer.length; i++) |
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in[i] = pageBandBuffer[i].getLineInt(line)[0];
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return in;
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} |
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public short[][] getLineShort(int line) { |
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short[][] s = new short[pageBandBuffer.length][]; |
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for (int i = 0; i < pageBandBuffer.length; i++) |
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s[i] = pageBandBuffer[i].getLineShort(line)[0];
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return s;
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} |
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public byte[] getLineFromBandByte(int line, int band) { |
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return pageBandBuffer[band].getLineFromBandByte(line, 0); |
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} |
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public double[] getLineFromBandDouble(int line, int band) { |
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return pageBandBuffer[band].getLineFromBandDouble(line, 0); |
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} |
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public float[] getLineFromBandFloat(int line, int band) { |
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return pageBandBuffer[band].getLineFromBandFloat(line, 0); |
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} |
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public int[] getLineFromBandInt(int line, int band) { |
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return pageBandBuffer[band].getLineFromBandInt(line, 0); |
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} |
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public short[] getLineFromBandShort(int line, int band) { |
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return pageBandBuffer[band].getLineFromBandShort(line, 0); |
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} |
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public void interchangeBands(int band1, int band2) { |
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} |
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public void mallocOneBand(int dataType, int width, int height, int band) { |
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} |
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public void replicateBand(int orig, int dest) { |
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} |
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public void setElem(int line, int col, int band, byte data) { |
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pageBandBuffer[band].setElem(line, col, 0, data);
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} |
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public void setElem(int line, int col, int band, short data) { |
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pageBandBuffer[band].setElem(line, col, 0, data);
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} |
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public void setElem(int line, int col, int band, int data) { |
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pageBandBuffer[band].setElem(line, col, 0, data);
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} |
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public void setElem(int line, int col, int band, float data) { |
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pageBandBuffer[band].setElem(line, col, 0, data);
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} |
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public void setElem(int line, int col, int band, double data) { |
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pageBandBuffer[band].setElem(line, col, 0, data);
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} |
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public void setElemByte(int line, int col, byte[] data) { |
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byte[] b = new byte[1]; |
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for (int i = 0; i < pageBandBuffer.length; i++) { |
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b[0] = data[i];
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pageBandBuffer[i].setElemByte(line, col, b); |
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} |
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} |
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public void setElemDouble(int line, int col, double[] data) { |
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double[] b = new double[1]; |
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for (int i = 0; i < pageBandBuffer.length; i++) { |
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b[0] = data[i];
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pageBandBuffer[i].setElemDouble(line, col, b); |
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} |
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} |
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public void setElemFloat(int line, int col, float[] data) { |
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float[] b = new float[1]; |
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for (int i = 0; i < pageBandBuffer.length; i++) { |
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b[0] = data[i];
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pageBandBuffer[i].setElemFloat(line, col, b); |
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} |
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} |
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public void setElemInt(int line, int col, int[] data) { |
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int[] b = new int[1]; |
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for (int i = 0; i < pageBandBuffer.length; i++) { |
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b[0] = data[i];
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pageBandBuffer[i].setElemInt(line, col, b); |
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} |
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} |
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public void setElemShort(int line, int col, short[] data) { |
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short[] b = new short[1]; |
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for (int i = 0; i < pageBandBuffer.length; i++) { |
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b[0] = data[i];
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pageBandBuffer[i].setElemShort(line, col, b); |
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} |
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} |
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public void setLineByte(byte[][] data, int line) { |
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} |
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public void setLineDouble(double[][] data, int line) { |
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} |
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public void setLineFloat(float[][] data, int line) { |
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} |
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public void setLineInBandByte(byte[] data, int line, int band) { |
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} |
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public void setLineInBandDouble(double[] data, int line, int band) { |
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} |
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public void setLineInBandFloat(float[] data, int line, int band) { |
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} |
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public void setLineInBandInt(int[] data, int line, int band) { |
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} |
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public void setLineInBandShort(short[] data, int line, int band) { |
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} |
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public void setLineInt(int[][] data, int line) { |
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} |
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public void setLineShort(short[][] data, int line) { |
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} |
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public void setNoDataValue(double nd) { |
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} |
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public void setNotValidValue(double value) { |
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} |
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public void switchBands(int[] bands) { |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.driver.datasetproperties.IHistogramable#getHistogram()
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*/
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public Histogram getHistogram() throws HistogramException { |
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percent = 0;
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if(getDataType() != IBuffer.TYPE_BYTE)
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return null; |
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Histogram hist = new Histogram(getBandCount(), 256); |
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for (int iBand = 0; iBand < getBandCount(); iBand++) |
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for (int col = 0; col < getHeight(); col++) { |
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for (int row = 0; row < getWidth(); row++) |
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hist.incrementPxValue(iBand, getElemByte(row, col, iBand)); |
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if (isCanceled()) return null; |
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percent = ((iBand * getHeight() + col) * 100) / (getBandCount() * getHeight());
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} |
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percent = 100;
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return hist;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.driver.datasetproperties.IHistogramable#getHistogramUsingClasses(org.gvsig.raster.shared.DataClassList)
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*/
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public Histogram getHistogramUsingClasses(DataClassList classes) throws HistogramException { |
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percent = 0;
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Histogram hist = new Histogram(getBandCount(), classes.length());
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for (int iBand = 0; iBand < getBandCount(); iBand++) { |
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for (int col = 0; col < getHeight(); col++) { |
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for (int row = 0; row < getWidth(); row++) { |
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int pixelValue = -1; |
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switch (this.getDataType()) { |
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case IBuffer.TYPE_BYTE:
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pixelValue = classes.getClassPosition((double)getElemByte(row, col, iBand));
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break;
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case IBuffer.TYPE_SHORT:
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pixelValue = classes.getClassPosition((double)getElemShort(row, col, iBand));
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break;
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case IBuffer.TYPE_INT:
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pixelValue = classes.getClassPosition((double)getElemInt(row, col, iBand));
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break;
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case IBuffer.TYPE_FLOAT:
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pixelValue = classes.getClassPosition((double)getElemFloat(row, col, iBand));
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break;
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case IBuffer.TYPE_DOUBLE:
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pixelValue = classes.getClassPosition((double)getElemDouble(row, col, iBand));
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break;
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} |
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if (pixelValue >= 0) hist.incrementPxValue(iBand, pixelValue); |
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} |
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if (isCanceled()) return null; |
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percent = ((iBand * getHeight() + col) * 100) / (getBandCount() * getHeight());
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} |
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} |
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percent = 100;
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return hist;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.util.IHistogramable#resetPercent()
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*/
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public void resetPercent() { |
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percent = 0;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.util.IHistogramable#getPercent()
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*/
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public int getPercent() { |
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return percent;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.util.ICancellable#isCanceled()
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*/
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public boolean isCanceled() { |
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return canceled;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.util.ICancellable#setCanceled(boolean)
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*/
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public void setCanceled(boolean value) { |
| 502 |
canceled = value; |
| 503 |
} |
| 504 |
} |