svn-gvsig-desktop / branches / v2_0_0_prep / extensions / extRemoteSensing / src / org / gvsig / remotesensing / RemoteSensingUtils.java @ 26348
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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 Instituto de Desarrollo Regional 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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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Iba?ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* Instituto de Desarrollo Regional (Universidad de Castilla La-Mancha)
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* Campus Universitario s/n
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* 02071 Alabacete
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* Spain
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*
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* +34 967 599 200
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*/
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package org.gvsig.remotesensing; |
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import java.util.ArrayList; |
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import org.gvsig.fmap.raster.layers.FLyrRasterSE; |
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import org.gvsig.raster.buffer.RasterBuffer; |
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import org.gvsig.raster.dataset.IBuffer; |
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import org.gvsig.raster.datastruct.ColorTable; |
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import org.gvsig.raster.grid.GridPalette; |
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import org.gvsig.raster.grid.filter.FilterTypeException; |
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import org.gvsig.raster.grid.filter.RasterFilterList; |
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import org.gvsig.raster.grid.filter.RasterFilterListManager; |
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import org.gvsig.raster.grid.filter.bands.ColorTableFilter; |
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import org.gvsig.raster.grid.filter.bands.ColorTableListManager; |
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import org.gvsig.raster.grid.filter.enhancement.LinearEnhancementFilter; |
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import org.gvsig.raster.grid.filter.statistics.TailTrimFilter; |
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import org.gvsig.raster.hierarchy.IRasterRendering; |
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import com.iver.cit.gvsig.fmap.layers.FLayer; |
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/**
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* Herramientas de usa general para la extensi?n extRemoteSensing.
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*
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* @author Diego Guerrero Sevilla (diego.guerrero@uclm.es)
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*
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*/
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public class RemoteSensingUtils { |
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/**
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* Asigna a la capa <code>lyr</code> una leyenda construida a partir
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* de un <code>ArrayList</code> de <code>ColorItem</code>.
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*
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* @param lyr capa a la que se asigna la leyenda
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* @param colorItems ColorItems con los que se contruye la leyenda
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*
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* @throws FilterTypeException
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*/
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public static void setLeyend(FLayer lyr, ArrayList colorItems) throws FilterTypeException { |
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if(lyr instanceof IRasterRendering) { |
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IRasterRendering rendering = (IRasterRendering) lyr; |
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ColorTable colorTable = new ColorTable();
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colorTable.createPaletteFromColorItems(colorItems, false);
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RasterFilterList filterList = rendering.getRenderFilterList(); |
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RasterFilterListManager manager = new RasterFilterListManager(filterList);
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ColorTableListManager cManager = (ColorTableListManager) manager.getManagerByClass(ColorTableListManager.class); |
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try {
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filterList.remove(ColorTableFilter.class); |
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((FLyrRasterSE)lyr).setLastLegend(null);
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filterList.remove(LinearEnhancementFilter.class); |
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filterList.remove(TailTrimFilter.class); |
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GridPalette gridPalette = new GridPalette(colorTable);
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cManager.addColorTableFilter(gridPalette); |
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((FLyrRasterSE)lyr).setLastLegend(gridPalette); |
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} catch (FilterTypeException e) {
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throw e;
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} |
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rendering.setRenderFilterList(filterList); |
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} |
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} |
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public static double getCellValueInLayerCoords(IBuffer buffer, int x, int y, int band) { |
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int iType = buffer.getDataType();
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if (iType == RasterBuffer.TYPE_DOUBLE) {
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return buffer.getElemDouble(y, x, band);
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} else if (iType == RasterBuffer.TYPE_INT) { |
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return (double) buffer.getElemInt(y, x, band); |
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} else if (iType == RasterBuffer.TYPE_FLOAT) { |
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return (double) buffer.getElemFloat(y, x, band); |
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} else if (iType == RasterBuffer.TYPE_BYTE) { |
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return (double) (buffer.getElemByte(y, x, band) & 0xff); |
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} else if ((iType == RasterBuffer.TYPE_SHORT) | (iType == RasterBuffer.TYPE_USHORT)) { |
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return (double) buffer.getElemShort(y, x, band); |
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} |
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return buffer.getNoDataValue();
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} |
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} |