/usr/bin/gcps2wld.py is in python-gdal 1.10.1+dfsg-5ubuntu1.
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: gcps2wld.py 18952 2010-02-28 11:59:53Z rouault $
#
# Name: gcps2wld
# Project: GDAL Python Interface
# Purpose: Translate the set of GCPs on a file into first order approximation
# in world file format.
# Author: Frank Warmerdam, warmerdam@pobox.com
#
#******************************************************************************
# Copyright (c) 2002, Frank Warmerdam
#
# 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.
#******************************************************************************
try:
from osgeo import gdal
except ImportError:
import gdal
import sys
import os.path
if len(sys.argv) < 2:
print("Usage: gcps2wld.py source_file")
sys.exit(1)
filename = sys.argv[1]
dataset = gdal.Open( filename )
if dataset is None:
print('Unable to open %s' % filename)
sys.exit(1)
gcps = dataset.GetGCPs()
if gcps is None or len(gcps) == 0:
print('No GCPs found on file ' + filename)
sys.exit(1)
geotransform = gdal.GCPsToGeoTransform( gcps )
if geotransform is None:
print('Unable to extract a geotransform.')
sys.exit( 1 )
print(geotransform[1])
print(geotransform[4])
print(geotransform[2])
print(geotransform[5])
print(geotransform[0] + 0.5 * geotransform[1] + 0.5 * geotransform[2])
print(geotransform[3] + 0.5 * geotransform[4] + 0.5 * geotransform[5])
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