JezK
Edit File: gdal2grd.py
#!/usr/bin/env python3 ############################################################################### # $Id$ # # Project: GDAL Python samples # Purpose: Script to write out ASCII GRD rasters (used in Golden Software # Surfer) # from any source supported by GDAL. # Author: Andrey Kiselev, dron@remotesensing.org # ############################################################################### # Copyright (c) 2003, Andrey Kiselev <dron@remotesensing.org> # Copyright (c) 2009, Even Rouault <even dot rouault at spatialys.com> # # Permission is hereby granted, free of charge, to any person obtaining a # copy of this software and associated documentation files (the "Software"), # to deal in the Software without restriction, including without limitation # the rights to use, copy, modify, merge, publish, distribute, sublicense, # and/or sell copies of the Software, and to permit persons to whom the # Software is furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included # in all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER # DEALINGS IN THE SOFTWARE. ############################################################################### import sys from osgeo import gdal gdal.TermProgress = gdal.TermProgress_nocb # ============================================================================= def Usage(): print("Usage: gdal2grd.py [-b band] [-quiet] infile outfile") print("Write out ASCII GRD rasters (used in Golden Software Surfer)") print("") print(" -b band Select a band number to convert (1 based)") print(" -quiet Do not report any diagnostic information") print(" infile Name of the input GDAL supported file") print(" outfile Name of the output GRD file") print("") return 2 def main(argv=sys.argv): infile = None outfile = None iBand = 1 quiet = 0 # Parse command line arguments. i = 1 while i < len(sys.argv): arg = sys.argv[i] if arg == "-b": i = i + 1 iBand = int(sys.argv[i]) elif arg == "-quiet": quiet = 1 elif infile is None: infile = arg elif outfile is None: outfile = arg else: Usage() i = i + 1 if infile is None: return Usage() if outfile is None: return Usage() indataset = gdal.Open(infile, gdal.GA_ReadOnly) if infile is None: print("Cannot open", infile) return 2 geotransform = indataset.GetGeoTransform() band = indataset.GetRasterBand(iBand) if band is None: print("Cannot load band", iBand, "from the", infile) return 2 if not quiet: print( "Size is ", indataset.RasterXSize, "x", indataset.RasterYSize, "x", indataset.RasterCount, ) print("Projection is ", indataset.GetProjection()) print("Origin = (", geotransform[0], ",", geotransform[3], ")") print("Pixel Size = (", geotransform[1], ",", geotransform[5], ")") print( "Converting band number", iBand, "with type", gdal.GetDataTypeName(band.DataType), ) # Header printing fpout = open(outfile, "wt") fpout.write("DSAA\n") fpout.write(str(band.XSize) + " " + str(band.YSize) + "\n") fpout.write( str(geotransform[0] + geotransform[1] / 2) + " " + str(geotransform[0] + geotransform[1] * (band.XSize - 0.5)) + "\n" ) if geotransform[5] < 0: fpout.write( str(geotransform[3] + geotransform[5] * (band.YSize - 0.5)) + " " + str(geotransform[3] + geotransform[5] / 2) + "\n" ) else: fpout.write( str(geotransform[3] + geotransform[5] / 2) + " " + str(geotransform[3] + geotransform[5] * (band.YSize - 0.5)) + "\n" ) fpout.write( str(band.ComputeRasterMinMax(0)[0]) + " " + str(band.ComputeRasterMinMax(0)[1]) + "\n" ) for i in range(band.YSize - 1, -1, -1): scanline = band.ReadAsArray(0, i, band.XSize, 1, band.XSize, 1) j = 0 while j < band.XSize: fpout.write(str(scanline[0, j])) j = j + 1 if j % 10: # Print no more than 10 values per line fpout.write(" ") else: fpout.write("\n") fpout.write("\n") # Display progress report on terminal if not quiet: gdal.TermProgress(float(band.YSize - i) / band.YSize) return 0 if __name__ == "__main__": sys.exit(main(sys.argv))