root / branches / CqCMSDvp / libraries / libCq CMS for java.old / src / org / cresques / io / raster / ComputeMinMaxShortFilter.java @ 2664
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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.cresques.io.raster; |
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/**
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* Calcula el m?ximo y el m?nimo de un raster.
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* @author Luis W. Sevilla (sevilla_lui@gva.es)
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*/
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public class ComputeMinMaxShortFilter extends ComputeMinMaxFilter { |
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/**
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* Constructor
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*
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*/
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public ComputeMinMaxShortFilter(){
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super();
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#pre()
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*/
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public void pre(){ |
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//Obtenci?n de par?metros
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this.raster = (RasterBuf)params.get("raster"); |
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height = raster.getHeight(); |
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width = raster.getWidth(); |
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super.pre();
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#process(int, int)
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*/
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public void process(int x, int y) { |
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raster.getElemInt(x, y, px); |
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int pxBand = px[0]; |
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if(pxBand<min[0]){ |
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secondMin[0] = min[0]; |
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min[0] = pxBand;
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}else if(pxBand < secondMin[0] && pxBand!=min[0]) |
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secondMin[0] = pxBand;
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if(pxBand>max[0]){ |
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secondMax[0] = max[0]; |
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max[0] = pxBand;
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}else if(pxBand > secondMax[0] && pxBand!=max[0]) |
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secondMax[0] = pxBand;
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pxBand = px[1];
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if(pxBand<min[1]){ |
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secondMin[1] = min[1]; |
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min[1] = pxBand;
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}else if(pxBand < secondMin[1] && pxBand!=min[1]) |
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secondMin[1] = pxBand;
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if(pxBand>max[1]){ |
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secondMax[1] = max[1]; |
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max[1] = pxBand;
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}else if(pxBand > secondMax[1] && pxBand!=max[1]) |
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secondMax[1] = pxBand;
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pxBand = px[2];
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if(pxBand<min[2]){ |
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secondMin[2] = min[2]; |
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min[2] = pxBand;
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}else if(pxBand < secondMin[2] && pxBand!=min[2]) |
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secondMin[2] = pxBand;
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if(pxBand>max[2]){ |
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secondMax[2] = max[2]; |
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max[2] = pxBand;
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}else if(pxBand > secondMax[2] && pxBand!=max[2]) |
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secondMax[2] = pxBand;
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#getInRasterDataType()
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*/
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public int getInRasterDataType(){ |
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return RasterBuf.TYPE_SHORT;
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#getOutRasterDataType()
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*/
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public int getOutRasterDataType(){ |
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return RasterBuf.TYPE_SHORT;
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#post()
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*/
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public void post(){ |
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super.post();
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}; |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.RasterFilter#processLine(int)
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*/
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public void processLine(int y){}; |
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} |
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