I have implemented in C++ an example of color table applied to a band, taking as reference the python script reported in this thread:
Ludwig wrote: > > colorTable = gdal.ColorTable() > greentransparent = (0, 255, 0, 0) > blue = (0,0, 255,255) > colorTable.SetColorEntry(0, greentransparent) > colorTable.SetColorEntry(1, blue) > b = image.GetRasterBand(1) > b.SetRasterColorTable(colorTable) > My code: // Create a color table for the Air Quality output image GDALColorTable *colorTable = new GDALColorTable(); GDALColorEntry black, green, yellow, orange, red, lightRed; // Setting RGB colors for 6 classes black.c1 = 0; black.c2 = 0; black.c3 = 0; black.c4 = 0; green.c1 = 0; green.c2 = 255; green.c3 = 0; green.c4 = 0; yellow.c1 = 255; yellow.c2 = 255; yellow.c3 = 0; yellow.c4 = 0; orange.c1 = 255; orange.c2 = 150; orange.c3 = 0; orange.c4 = 0; red.c1 = 255; red.c2 = 0; red.c3 = 0; red.c4 = 0; lightRed.c1 = 150; lightRed.c2 = 0; lightRed.c3 = 0; lightRed.c4 = 0; // Link every color to a pixel value colorTable->SetColorEntry(0, &black); colorTable->SetColorEntry(1, &green); colorTable->SetColorEntry(2, &yellow); colorTable->SetColorEntry(3, &orange); colorTable->SetColorEntry(4, &red); colorTable->SetColorEntry(5, &lightRed); // Apply the table to the band myOutBand->SetColorTable(colorTable); // Delete the GDALColorTable object delete colorTable; I hope this could be helpful for someone. -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Transparent-PNG-with-color-table-palette-tp2030306p5190147.html Sent from the GDAL - Dev mailing list archive at Nabble.com. _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev