gvsig-gdal / trunk / org.gvsig.gdal2 / org.gvsig.gdal2.prov / org.gvsig.gdal2.prov.raster.legend / src / main / java / org / gvsig / raster / gdal / provider / legend / RasterGdalGetColorInterpretation.java @ 370
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package org.gvsig.raster.gdal.provider.legend; |
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import java.awt.Color; |
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import java.util.ArrayList; |
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import java.util.List; |
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import org.gdal.gdal.Band; |
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import org.gdal.gdal.Dataset; |
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import org.gdal.gdal.gdal; |
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import org.gvsig.fmap.dal.raster.api.RasterStore; |
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import org.gvsig.raster.gdal.provider.AbstractRasterGdalStoreProvider; |
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import org.gvsig.raster.lib.legend.api.RasterLegendLocator; |
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import org.gvsig.raster.lib.legend.api.RasterLegendManager; |
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import org.gvsig.raster.lib.legend.api.colorinterpretation.ColorInterpretation; |
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import org.gvsig.raster.lib.legend.api.colortable.ColorTable; |
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import org.gvsig.raster.lib.legend.api.colortable.colortableclass.ColorTableClass; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dynobject.DynClass; |
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import org.gvsig.tools.dynobject.DynMethod; |
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import org.gvsig.tools.dynobject.DynObject; |
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import org.gvsig.tools.dynobject.exception.DynMethodException; |
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import org.gvsig.tools.dynobject.exception.DynMethodNotSupportedException; |
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/**
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* @author dmartinezizquierdo
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*
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*/
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public class RasterGdalGetColorInterpretation implements DynMethod { |
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private static Integer code = null; |
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static void register(DynClass storeClass) { |
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if (code != null) { |
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return;
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} |
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code = ToolsLocator.getDynObjectManager() |
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.registerDynMethod(storeClass, new RasterGdalGetColorInterpretation());
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} |
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@Override
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public int getCode() throws DynMethodNotSupportedException { |
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return code;
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} |
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@Override
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public String getDescription() { |
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return "Raster GDAL Color Interpretation"; |
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} |
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@Override
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public String getName() { |
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return RasterStore.DYNMETHOD_GETCOLORINTERPRETATION_NAME;
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} |
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@Override
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public Object invoke(DynObject self, Object[] args) |
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throws DynMethodException {
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ColorInterpretation colorInterpretation = null;
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AbstractRasterGdalStoreProvider rasterGdalProvider = |
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(AbstractRasterGdalStoreProvider) self; |
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RasterLegendManager legendManager = |
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RasterLegendLocator.getRasterLegendManager(); |
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Dataset gdalDataSet = rasterGdalProvider.getGdalDataSet(); |
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String[] bandColorInterpretations = |
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new String[gdalDataSet.getRasterCount()]; |
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for (int i = 0; i < gdalDataSet.getRasterCount(); i++) { |
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// Bands begin in 1 instead of 0
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int bandNumber = i + 1; |
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Band gdalBand = gdalDataSet.GetRasterBand(bandNumber); |
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String bandColorInterpretion =
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colorInterpretationFromGdal(gdalBand.GetRasterColorInterpretation()); |
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bandColorInterpretations[i] = bandColorInterpretion; |
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} |
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//FIXME:Intenta suponer cual es la forma correcta de interpretar los colores en funcion del numero de bandas
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//Seguramente haya que arreglarlo cuando haya GUI para que el usuario pueda especificar la forma correcta.
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guessingColorInterpretation(bandColorInterpretations); |
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colorInterpretation = |
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legendManager.createColorInterpretation(bandColorInterpretations); |
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for (int bandNumber = 1; bandNumber <= gdalDataSet.getRasterCount(); bandNumber++) { |
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//Band in GDAL begins in 1, meanwhile we begin in 0
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int indexColorInterpretation=bandNumber-1; |
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if (ColorInterpretation.PALETTE_BAND.equals(colorInterpretation.get(indexColorInterpretation))) {
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ColorTable colorTable = null;
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Band gdalBand = gdalDataSet.GetRasterBand(bandNumber); |
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org.gdal.gdal.ColorTable gdalBandColorTable = gdalBand.GetColorTable(); |
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if (gdalBandColorTable != null) { |
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List<ColorTableClass> colorTableClasses = new ArrayList<ColorTableClass>(); |
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for (int i = 0; i < gdalBandColorTable.GetCount(); i++) { |
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String className = i + ""; |
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double value = ((byte) i); |
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double interpolation = 50.0; |
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Color color = gdalBandColorTable.GetColorEntry(i);
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ColorTableClass colorTableClass = |
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legendManager.createColorTableClass(className, value, interpolation, color); |
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colorTableClasses.add(colorTableClass); |
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} |
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String colorTableName = rasterGdalProvider.getName() + "_color_table"; |
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colorTable = legendManager.createColorTable(colorTableName, colorTableClasses, true);
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// FIXME: De momento devolvemos el primero solo.
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// return colorTable;
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} else {
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List<ColorTableClass> colorTableClasses = new ArrayList<ColorTableClass>(); |
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double[] minMax = new double[2]; |
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gdalBand.ComputeRasterMinMax(minMax); |
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Double increment = (minMax[1] - minMax[0]) / 256; |
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for (int i = 0; i < 255; i++) { |
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String className = i + ""; |
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double value = ((minMax[0] + (i * increment))); |
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double interpolation = 50.0; |
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int intARGB = ((i & 0xFF) << 24) | // alpha |
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((i & 0xFF) << 16) | // red |
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((i & 0xFF) << 8) | // green |
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((i & 0xFF) << 0); // blue |
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Color color = new Color(intARGB); |
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ColorTableClass colorTableClass = |
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legendManager.createColorTableClass(className, value, interpolation, color); |
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colorTableClasses.add(colorTableClass); |
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} |
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String colorTableName = rasterGdalProvider.getName() + "_color_table"; |
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colorTable = legendManager.createColorTable(colorTableName, colorTableClasses, true);
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// FIXME: De momento devolvemos el primero solo.
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// return colorTable;
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} |
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colorInterpretation.setPalette(colorTable); |
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colorInterpretation.setPaletteBand(bandNumber); |
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} |
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} |
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return colorInterpretation;
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} |
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private void guessingColorInterpretation(String[] bandColorInterpretations){ |
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//FIXME:Intenta suponer cual es la forma correcta de interpretar los colores en funcion del numero de bandas
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//Seguramente haya que arreglarlo cuando haya GUI para que el usuario pueda especificar la forma correcta.
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if (bandColorInterpretations.length==1){ |
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if (bandColorInterpretations[0].equals(ColorInterpretation.UNDEFINED_BAND)){ |
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bandColorInterpretations[0]=ColorInterpretation.PALETTE_BAND;
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} |
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} |
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if (bandColorInterpretations.length==3 || bandColorInterpretations.length>4){ |
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if (bandColorInterpretations[0].equals(ColorInterpretation.UNDEFINED_BAND) || |
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bandColorInterpretations[1].equals(ColorInterpretation.UNDEFINED_BAND) ||
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bandColorInterpretations[2].equals(ColorInterpretation.UNDEFINED_BAND) ){
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bandColorInterpretations[0]=ColorInterpretation.RED_BAND;
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bandColorInterpretations[1]=ColorInterpretation.GREEN_BAND;
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bandColorInterpretations[2]=ColorInterpretation.BLUE_BAND;
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} |
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} |
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if (bandColorInterpretations.length==4){ |
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if (bandColorInterpretations[0].equals(ColorInterpretation.UNDEFINED_BAND) && |
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bandColorInterpretations[1].equals(ColorInterpretation.UNDEFINED_BAND) &&
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bandColorInterpretations[2].equals(ColorInterpretation.UNDEFINED_BAND) &&
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bandColorInterpretations[3].equals(ColorInterpretation.UNDEFINED_BAND) ){
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bandColorInterpretations[0]=ColorInterpretation.RED_BAND;
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bandColorInterpretations[1]=ColorInterpretation.GREEN_BAND;
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bandColorInterpretations[2]=ColorInterpretation.BLUE_BAND;
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bandColorInterpretations[3]=ColorInterpretation.ALPHA_BAND;
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} else if (bandColorInterpretations[0].equals(ColorInterpretation.RED_BAND) && |
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bandColorInterpretations[1].equals(ColorInterpretation.GREEN_BAND) &&
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bandColorInterpretations[2].equals(ColorInterpretation.BLUE_BAND) &&
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bandColorInterpretations[3].equals(ColorInterpretation.UNDEFINED_BAND) ){
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bandColorInterpretations[3]=ColorInterpretation.ALPHA_BAND;
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} |
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} |
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} |
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/**
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* Obtiene la cadena que representa el tipo de banda de color. Los tipos posibles son:
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* <UL>
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* <LI>0 = "Undefined" </LI>
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* <LI>1 = "Gray";</LI>
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* <LI>2 = "Palette";</LI>
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* <LI>3 = "Red";</LI>
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* <LI>4 = "Green";</LI>
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* <LI>5 = "Blue";</LI>
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* <LI>6 = "Alpha";</LI>
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* <LI>7 = "Hue";</LI>
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* <LI>8 = "Saturation";</LI>
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* <LI>9 = "Lightness";</LI>
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* <LI>10 = "Cyan";</LI>
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* <LI>11 = "Magenta";</LI>
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* <LI>12 = "Yellow";</LI>
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* <LI>13 = "Black";</LI>
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* <LI>14 = "YCbCr_Y";</LI>
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* <LI>15 = "YCbCr_Cb";</LI>
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* <LI>16 = "YCbCr_Cr";</LI>
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* </UL>
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* @return Cadena con el nombre del tipo de banda de colorn
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*/
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private String colorInterpretationFromGdal(int gdalCode){ |
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String gdalNameCI=gdal.GetColorInterpretationName(gdalCode);
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switch (gdalNameCI) {
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case "Undefined" : |
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return ColorInterpretation.UNDEFINED_BAND;
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case "Gray" : |
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return ColorInterpretation.GRAY_BAND;
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case "Palette" : |
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return ColorInterpretation.PALETTE_BAND;
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case "Red" : |
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return ColorInterpretation.RED_BAND;
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case "Green" : |
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return ColorInterpretation.GREEN_BAND;
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case "Blue" : |
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return ColorInterpretation.BLUE_BAND;
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case "Alpha" : |
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return ColorInterpretation.ALPHA_BAND;
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case "Hue" : |
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return ColorInterpretation.HUE_BAND;
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case "Saturation" : |
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return ColorInterpretation.SATURATION_BAND;
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case "Lightness" : |
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return ColorInterpretation.LIGHTNESS_BAND;
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case "Cyan" : |
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return ColorInterpretation.CYAN_BAND;
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case "Magenta" : |
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return ColorInterpretation.MAGENTA_BAND;
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case "Yellow" : |
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return ColorInterpretation.YELLOW_BAND;
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case "Black" : |
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return ColorInterpretation.BLACK_BAND;
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case "YCbCr_Y" : |
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return ColorInterpretation.YCBCR_Y_BAND;
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case "YCbCr_Cb" : |
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return ColorInterpretation.YCBCR_CB_BAND;
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case "YCbCr_Cr" : |
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return ColorInterpretation.YCBCR_CR_BAND;
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default:
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return ColorInterpretation.UNDEFINED_BAND;
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} |
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} |
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@Override
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public Object clone() throws CloneNotSupportedException { |
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return super.clone(); |
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} |
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} |