gvsig-raster / org.gvsig.raster / trunk / org.gvsig.raster / org.gvsig.raster.lib / org.gvsig.raster.lib.impl / src / main / java / org / gvsig / raster / impl / store / properties / DataStoreStatistics.java @ 162
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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.store.properties; |
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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.exception.FileNotOpenException; |
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import org.gvsig.fmap.dal.coverage.exception.InvalidSetViewException; |
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import org.gvsig.fmap.dal.coverage.exception.ProcessInterruptedException; |
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import org.gvsig.fmap.dal.coverage.exception.RasterDriverException; |
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import org.gvsig.fmap.dal.coverage.exception.RmfSerializerException; |
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import org.gvsig.raster.impl.process.RasterTask; |
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import org.gvsig.raster.impl.process.RasterTaskQueue; |
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import org.gvsig.raster.impl.provider.RasterProvider; |
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/**
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* Statistics for a raster provider.
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*
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class DataStoreStatistics extends AbstractStatistics { |
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private RasterProvider provider = null; |
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private int bandCount = 0; |
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private int percent = 0; |
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private boolean forceToRecalc = false; |
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/**
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* Constructor. Asigna el fichero asociado.
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*/
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public DataStoreStatistics(RasterProvider prov) {
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this.provider = prov;
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if(provider != null) |
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bandCount = provider.getBandCount(); |
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} |
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/**
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* Obtiene el dataset asociado
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* @return
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*/
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public RasterProvider getDataProvider() {
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return provider;
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} |
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/**
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* Asigna el valor m?ximo del grid
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* @return Valor m?ximo
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*/
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public void setMax(double[] max) { |
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this.max = max;
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} |
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/**
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* Asigna el valor del segundo m?ximo
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* @return Valor del segundo m?ximo
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*/
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public void setSecondMax(double[] smax) { |
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this.secondMax = smax;
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} |
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/**
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* Asigna el valor m?ximo del grid
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* @return Valor m?ximo
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*/
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public void setMaxRGB(double[] max) { |
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this.maxByteUnsigned = max;
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} |
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/**
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* Asigna el valor del segundo m?ximo
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* @return Valor del segundo m?ximo
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*/
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public void setSecondMaxRGB(double[] smax) { |
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this.secondMaxByteUnsigned = smax;
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} |
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/**
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* Asigna el valor m?dio del grid
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* @return Valor medio
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*/
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public void setMean(double[] mean) { |
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this.mean = mean;
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} |
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/**
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* Asigna el valor m?ximo del grid
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* @return Valor m?nimo
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*/
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public void setMin(double[] min) { |
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this.min = min;
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} |
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/**
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* Asigna el valor del segundo m?nimo
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* @return Valor del segundo m?nimo
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*/
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public void setSecondMin(double[] smin) { |
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this.secondMin = smin;
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} |
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/**
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* Asigna el valor m?ximo del grid
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* @return Valor m?nimo
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*/
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public void setMinRGB(double[] min) { |
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this.minByteUnsigned = min;
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} |
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/**
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* Asigna el valor del segundo m?nimo
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* @return Valor del segundo m?nimo
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*/
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public void setSecondMinRGB(double[] smin) { |
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this.secondMinByteUnsigned = smin;
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} |
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/**
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* Asigna la varianza
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* @return Varianza
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*/
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public void setVariance(double[] variance) { |
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this.variance = variance;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.hierarchy.IStatistics#getMin()
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*/
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public double[] getMin() { |
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return min;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.hierarchy.IStatistics#getMax()
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*/
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public double[] getMax() { |
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return max;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.hierarchy.IStatistics#getSecondMax()
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*/
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public double[] getSecondMax() { |
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return secondMax;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.hierarchy.IStatistics#getSecondMin()
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*/
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public double[] getSecondMin() { |
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return secondMin;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.hierarchy.IStatistics#getMinRGB()
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*/
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public double[] getMinByteUnsigned() { |
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return minByteUnsigned;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.hierarchy.IStatistics#getMaxRGB()
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*/
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public double[] getMaxByteUnsigned() { |
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return maxByteUnsigned;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.hierarchy.IStatistics#getSecondMaxRGB()
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*/
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public double[] getSecondMaxByteUnsigned() { |
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return secondMaxByteUnsigned;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.hierarchy.IStatistics#getSecondMinRGB()
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*/
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public double[] getSecondMinByteUnsigned() { |
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return secondMinByteUnsigned;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.dal.coverage.dataset.Statistics#getMaximun()
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*/
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public double getMaximun() { |
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double m = Double.NEGATIVE_INFINITY; |
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for (int i = 0; i < max.length; i++) |
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m = Math.max(m, max[i]);
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return m;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.dal.coverage.dataset.Statistics#getMinimun()
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*/
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public double getMinimun() { |
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double m = Double.MAX_VALUE; |
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for (int i = 0; i < min.length; i++) |
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m = Math.min(m, min[i]);
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return m;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.dal.coverage.dataset.Statistics#getMaximunByteUnsigned()
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*/
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public double getMaximunByteUnsigned() { |
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double m = Double.NEGATIVE_INFINITY; |
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for (int i = 0; i < maxByteUnsigned.length; i++) |
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m = Math.max(m, maxByteUnsigned[i]);
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return m;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.dal.coverage.dataset.Statistics#getMinimunByteUnsigned()
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*/
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public double getMinimunByteUnsigned() { |
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double m = Double.MAX_VALUE; |
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for (int i = 0; i < minByteUnsigned.length; i++) |
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m = Math.min(m, minByteUnsigned[i]);
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return m;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.hierarchy.IStatistics#getMean()
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*/
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public double[] getMean() { |
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return mean;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.hierarchy.IStatistics#getVariance()
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*/
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public double[] getVariance() { |
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return variance;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.hierarchy.IStatistics#getBandCount()
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*/
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public int getBandCount(){ |
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return this.bandCount; |
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} |
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/**
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* Asigna el n?mero de bandas
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* @param bandCount
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*/
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public void setBandCount(int bandCount) { |
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this.bandCount = bandCount;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.hierarchy.IStatistics#calcFullStatistics()
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*/
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public void calculate() throws FileNotOpenException, RasterDriverException, ProcessInterruptedException { |
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if (provider == null) |
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return;
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RasterTask task = RasterTaskQueue.get(Thread.currentThread().toString());
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percent = 0;
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// Si no se fuerza su calculo, intentamos ver si estan calculadas y sino
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// las intentamos cargar del RMF
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if (!forceToRecalc) {
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if (!isCalculated()) {
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try {
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provider.loadObjectFromRmf(DataStoreStatistics.class, this);
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} catch (RmfSerializerException e) {
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// Si no se puede cargar del RMF, recalcularemos las estadisticas.
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} |
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} |
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if (isCalculated())
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return;
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} |
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bandCount = provider.getBandCount(); |
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max = new double[bandCount]; |
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min = new double[bandCount]; |
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secondMax = new double[bandCount]; |
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secondMin = new double[bandCount]; |
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maxByteUnsigned = new double[bandCount]; |
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minByteUnsigned = new double[bandCount]; |
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secondMaxByteUnsigned = new double[bandCount]; |
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secondMinByteUnsigned = new double[bandCount]; |
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mean = new double[bandCount]; |
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variance = new double[bandCount]; |
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int blockHeight = RasterLibrary.blockHeight;
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long[] iValues = new long[bandCount]; |
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boolean[] initializedBand = new boolean[bandCount]; |
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int[] type = new int[bandCount]; |
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byte[][][] b = null; |
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short[][][] s = null; |
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int[][][] i = null; |
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float[][][] f = null; |
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double[][][] d = null; |
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double z = 0; |
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double rgb = 0; |
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for (int iBand = 0; iBand < bandCount; iBand++) { |
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max[iBand] = Double.NEGATIVE_INFINITY;
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min[iBand] = Double.POSITIVE_INFINITY;
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secondMax[iBand] = Double.NEGATIVE_INFINITY;
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secondMin[iBand] = Double.POSITIVE_INFINITY;
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maxByteUnsigned[iBand] = 0;
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minByteUnsigned[iBand] = 255;
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secondMaxByteUnsigned[iBand] = 0;
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secondMinByteUnsigned[iBand] = 255;
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initializedBand[iBand] = false;
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type[iBand] = provider.getDataType()[iBand]; |
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} |
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for (int height = 0; height < provider.getHeight(); height += blockHeight) { |
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try {
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Object buf = provider.readBlock(height, blockHeight);
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switch (type[0]) { |
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case Buffer.TYPE_BYTE: b = (byte[][][]) buf; break; |
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case Buffer.TYPE_SHORT: s = (short[][][]) buf; break; |
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case Buffer.TYPE_FLOAT: f = (float[][][]) buf; break; |
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case Buffer.TYPE_DOUBLE: d = (double[][][]) buf; break; |
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case Buffer.TYPE_INT: i = (int[][][]) buf; break; |
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} |
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} catch (InvalidSetViewException e) {
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// La vista se asigna autom?ticamente
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return;
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} |
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int hB = blockHeight;
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if ((height + hB) > provider.getHeight())
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hB = ((int)provider.getHeight()) - height;
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for (int iBand = 0; iBand < bandCount; iBand++) { |
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for (int col = 0; col < provider.getWidth(); col++) { |
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for (int row = 0; row < hB; row++) { |
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z = (b != null) ? b[iBand][row][col] :
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(s != null) ? s[iBand][row][col] :
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(d != null) ? d[iBand][row][col] :
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(f != null) ? f[iBand][row][col] :
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(i != null) ? i[iBand][row][col] :
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0;
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if (provider.isNoDataEnabled() && (z == provider.getNoDataValue()))
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continue;
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if (Double.isNaN(z)) |
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continue;
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rgb = 0;
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if(b != null) { |
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rgb = ((byte) z) & 0xff; |
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mean[iBand] += rgb; |
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variance[iBand] += rgb * rgb; |
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} else {
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//rgb = (b != null) ? ((byte) z) & 0xff : 0;
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mean[iBand] += z; |
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variance[iBand] += z * z; |
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} |
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iValues[iBand]++; |
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if (!initializedBand[iBand]) {
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secondMin[iBand] = min[iBand]; |
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secondMax[iBand] = max[iBand]; |
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min[iBand] = z; |
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max[iBand] = z; |
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secondMinByteUnsigned[iBand] = minByteUnsigned[iBand]; |
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secondMaxByteUnsigned[iBand] = maxByteUnsigned[iBand]; |
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minByteUnsigned[iBand] = rgb; |
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maxByteUnsigned[iBand] = rgb; |
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initializedBand[iBand] = true;
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continue;
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} |
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if (z < secondMin[iBand]) {
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if (z < min[iBand]) {
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secondMin[iBand] = min[iBand]; |
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min[iBand] = z; |
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} else {
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if (z > min[iBand])
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secondMin[iBand] = z; |
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} |
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} |
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if (z > secondMax[iBand]) {
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if (z > max[iBand]) {
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secondMax[iBand] = max[iBand]; |
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max[iBand] = z; |
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} else {
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if (z < max[iBand])
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secondMax[iBand] = z; |
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} |
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} |
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if (rgb < secondMinByteUnsigned[iBand]) {
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if (rgb < minByteUnsigned[iBand]) {
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secondMinByteUnsigned[iBand] = minByteUnsigned[iBand]; |
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minByteUnsigned[iBand] = rgb; |
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} else {
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if (rgb > minByteUnsigned[iBand])
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secondMinByteUnsigned[iBand] = rgb; |
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} |
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} |
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if (rgb > secondMaxByteUnsigned[iBand]) {
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if (rgb > maxByteUnsigned[iBand]) {
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secondMaxByteUnsigned[iBand] = maxByteUnsigned[iBand]; |
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maxByteUnsigned[iBand] = rgb; |
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} else {
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if (rgb < maxByteUnsigned[iBand])
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secondMaxByteUnsigned[iBand] = rgb; |
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} |
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} |
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} |
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} |
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if (task.getEvent() != null) |
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task.manageEvent(task.getEvent()); |
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} |
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percent = ((height * 100) / (int)provider.getHeight()); |
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} |
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percent = 100;
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for (int iBand = 0; iBand < bandCount; iBand++) { |
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if (iValues[iBand] > 0) { |
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mean[iBand] = mean[iBand] / (double) iValues[iBand];
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variance[iBand] = variance[iBand] / (double) iValues[iBand] - mean[iBand] * mean[iBand];
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} |
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} |
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calculated = true;
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forceToRecalc = false;
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try {
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provider.saveObjectToRmf(DataStoreStatistics.class, this);
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} catch (RmfSerializerException e) {
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// No salva a rmf
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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.raster.hierarchy.IStatistics#isCalculated()
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*/
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public boolean isCalculated() { |
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return calculated;
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} |
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|
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/**
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* Asigna el flag de estad?sticas calculadas.
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* @param calc
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*/
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public void setCalculated(boolean calc) { |
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calculated = calc; |
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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.raster.hierarchy.IStatistics#setTailTrimValue(double, java.lang.Object)
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*/
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public void setTailTrimValue(double percent, Object valueByBand){ |
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tailTrim.put(percent + "", valueByBand);
|
| 489 |
for (int i = 0; i < tailTrimValues.size(); i++) { |
| 490 |
if(tailTrimValues.get(i).equals(percent + "")) { |
| 491 |
tailTrimValues.set(i, percent + "");
|
| 492 |
return;
|
| 493 |
} |
| 494 |
} |
| 495 |
tailTrimValues.add(percent + "");
|
| 496 |
} |
| 497 |
|
| 498 |
/*
|
| 499 |
* (non-Javadoc)
|
| 500 |
* @see org.gvsig.raster.hierarchy.IStatistics#getTailTrimValue(double)
|
| 501 |
*/
|
| 502 |
public Object getTailTrimValue(double percent){ |
| 503 |
return tailTrim.get(percent + ""); |
| 504 |
} |
| 505 |
|
| 506 |
/*
|
| 507 |
* (non-Javadoc)
|
| 508 |
* @see org.gvsig.raster.shared.IStatistics#getTailTrimValue(int)
|
| 509 |
*/
|
| 510 |
public Object[] getTailTrimValue(int pos) { |
| 511 |
return new Object[] { Double.valueOf(Double.parseDouble(tailTrimValues.get(pos) + "")), tailTrim.get(tailTrimValues.get(pos)) }; |
| 512 |
} |
| 513 |
|
| 514 |
/*
|
| 515 |
* (non-Javadoc)
|
| 516 |
* @see org.gvsig.raster.shared.IStatistics#getTailTrimCount()
|
| 517 |
*/
|
| 518 |
public int getTailTrimCount() { |
| 519 |
return tailTrimValues.size();
|
| 520 |
} |
| 521 |
|
| 522 |
/**
|
| 523 |
* Pone a cero el porcentaje de progreso del proceso de calculo de histograma
|
| 524 |
*/
|
| 525 |
public void resetPercent() { |
| 526 |
percent = 0;
|
| 527 |
} |
| 528 |
|
| 529 |
/**
|
| 530 |
* Obtiene el porcentaje de progreso del proceso de calculo de histograma
|
| 531 |
* @return porcentaje de progreso
|
| 532 |
*/
|
| 533 |
public int getPercent() { |
| 534 |
return percent;
|
| 535 |
} |
| 536 |
|
| 537 |
/**
|
| 538 |
* Cuando se llama a este m?todo fuerza que la siguiente petici?n de estad?sticas
|
| 539 |
* no sea le?da de RMF y sean recalculadas por completo.
|
| 540 |
* @param forceToRecalc
|
| 541 |
*/
|
| 542 |
public void forceToRecalc() { |
| 543 |
this.forceToRecalc = true; |
| 544 |
} |
| 545 |
|
| 546 |
} |