""" This scrip takes a River2D csv output file of format node no.,x,y,z,roughness
and converts it to space separated data x,y,z.
All you need to do is specify the data file name and output file name

by Ole Nielsen
modified by Petar Milevski to save to 3 decimal places (to reduce file size)
"""

import string

infid = open('River2D.bed', 'r') # input file
outfid = open('csv.csv', 'w') # output filename

for line in infid.readlines():
    fields = line.split(' ')
    x=float(fields[1])
    y=float(fields[2])
    z=float(fields[3])
    outfid.write('%.3f,%.3f,%.3f\n' %(x, y, z))
outfid.close()
infid.close()