/usr/bin/gdal_proximity.py is in python-gdal 2.2.3+dfsg-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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#******************************************************************************
# $Id: gdal_proximity.py 33790 2016-03-26 12:42:12Z goatbar $
#
# Name: gdalproximity
# Project: GDAL Python Interface
# Purpose: Application for computing raster proximity maps.
# Author: Frank Warmerdam, warmerdam@pobox.com
#
#******************************************************************************
# Copyright (c) 2008, Frank Warmerdam
# Copyright (c) 2009-2011, Even Rouault <even dot rouault at mines-paris dot org>
#
# 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
def Usage():
print("""
gdal_proximity.py srcfile dstfile [-srcband n] [-dstband n]
[-of format] [-co name=value]*
[-ot Byte/Int16/Int32/Float32/etc]
[-values n,n,n] [-distunits PIXEL/GEO]
[-maxdist n] [-nodata n] [-use_input_nodata YES/NO]
[-fixed-buf-val n] [-q] """)
sys.exit(1)
# =============================================================================
# Mainline
# =============================================================================
format = 'GTiff'
creation_options = []
options = []
src_filename = None
src_band_n = 1
dst_filename = None
dst_band_n = 1
creation_type = 'Float32'
quiet_flag = 0
gdal.AllRegister()
argv = gdal.GeneralCmdLineProcessor( sys.argv )
if argv is None:
sys.exit( 0 )
# Parse command line arguments.
i = 1
while i < len(argv):
arg = argv[i]
if arg == '-of':
i = i + 1
format = argv[i]
elif arg == '-co':
i = i + 1
creation_options.append(argv[i])
elif arg == '-ot':
i = i + 1
creation_type = argv[i]
elif arg == '-maxdist':
i = i + 1
options.append( 'MAXDIST=' + argv[i] )
elif arg == '-values':
i = i + 1
options.append( 'VALUES=' + argv[i] )
elif arg == '-distunits':
i = i + 1
options.append( 'DISTUNITS=' + argv[i] )
elif arg == '-nodata':
i = i + 1
options.append( 'NODATA=' + argv[i] )
elif arg == '-use_input_nodata':
i = i + 1
options.append( 'USE_INPUT_NODATA=' + argv[i] )
elif arg == '-fixed-buf-val':
i = i + 1
options.append( 'FIXED_BUF_VAL=' + argv[i] )
elif arg == '-srcband':
i = i + 1
src_band_n = int(argv[i])
elif arg == '-dstband':
i = i + 1
dst_band_n = int(argv[i])
elif arg == '-q' or arg == '-quiet':
quiet_flag = 1
elif src_filename is None:
src_filename = argv[i]
elif dst_filename is None:
dst_filename = argv[i]
else:
Usage()
i = i + 1
if src_filename is None or dst_filename is None:
Usage()
# =============================================================================
# Open source file
# =============================================================================
src_ds = gdal.Open( src_filename )
if src_ds is None:
print('Unable to open %s' % src_filename)
sys.exit(1)
srcband = src_ds.GetRasterBand(src_band_n)
# =============================================================================
# Try opening the destination file as an existing file.
# =============================================================================
try:
driver = gdal.IdentifyDriver( dst_filename )
if driver is not None:
dst_ds = gdal.Open( dst_filename, gdal.GA_Update )
dstband = dst_ds.GetRasterBand(dst_band_n)
else:
dst_ds = None
except:
dst_ds = None
# =============================================================================
# Create output file.
# =============================================================================
if dst_ds is None:
drv = gdal.GetDriverByName(format)
dst_ds = drv.Create( dst_filename,
src_ds.RasterXSize, src_ds.RasterYSize, 1,
gdal.GetDataTypeByName(creation_type), creation_options )
dst_ds.SetGeoTransform( src_ds.GetGeoTransform() )
dst_ds.SetProjection( src_ds.GetProjectionRef() )
dstband = dst_ds.GetRasterBand(1)
# =============================================================================
# Invoke algorithm.
# =============================================================================
if quiet_flag:
prog_func = None
else:
prog_func = gdal.TermProgress
gdal.ComputeProximity( srcband, dstband, options,
callback = prog_func )
srcband = None
dstband = None
src_ds = None
dst_ds = None
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