/usr/share/doc/python-mapscript/examples/project_csv.py is in python-mapscript 7.0.7-1build2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | #!/usr/bin/python
#
# Script : project_csv.py
#
# Purpose: Simple example to read a csv file and reproject point x/y data
#
# $Id$
#
import sys
import csv
import mapscript
# example invocation
# ./reproj.py ./foo.csv 2 3 EPSG:32619 EPSG:4326
# check input parameters
if (len(sys.argv) != 6):
print sys.argv[0] + \
" <csvfile> <x_col> <y_col> <epsg_code_in> <epsg_code_out>"
sys.exit(1)
else:
# set x and y indices
x = int(sys.argv[2])
y = int(sys.argv[3])
# set input and output projections
projObjIn = mapscript.projectionObj("init="+sys.argv[4].lower())
projObjOut = mapscript.projectionObj("init="+sys.argv[5].lower())
# open file
fCsv = open(sys.argv[1], 'r')
# read csv
csvIn = csv.reader(fCsv)
# setup output
csvOut = csv.writer(sys.stdout)
for aRow in csvIn: # each record
# set pointObj
point = mapscript.pointObj(float(aRow[x]), float(aRow[y]))
# project
point.project(projObjIn, projObjOut)
# update with reprojected coordinates
aRow[x] = point.x
aRow[y] = point.y
csvOut.writerow(aRow)
fCsv.close()
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