https://github.com/geodynamics/citcoms
Tip revision: db34189a4cc8afa725438397e42cb391338a2f06 authored by Leif Strand on 27 July 2005, 09:06:27 UTC
Merged changes fron trunk: "[...] uniprocessor examples work again [...]".
Merged changes fron trunk: "[...] uniprocessor examples work again [...]".
Tip revision: db34189
zslice.py
#!/usr/bin/env python
#
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#
#<LicenseText>
#=====================================================================
#
# CitcomS.py
# ---------------------------------
#
# Authors:
# Eh Tan, Eun-seo Choi, and Pururav Thoutireddy
# (c) California Institute of Technology 2002-2005
#
# By downloading and/or installing this software you have
# agreed to the CitcomS.py-LICENSE bundled with this software.
# Free for non-commercial academic research ONLY.
# This program is distributed WITHOUT ANY WARRANTY whatsoever.
#
#=====================================================================
#
# Copyright June 2005, by the California Institute of Technology.
# ALL RIGHTS RESERVED. United States Government Sponsorship Acknowledged.
#
# Any commercial use must be negotiated with the Office of Technology
# Transfer at the California Institute of Technology. This software
# may be subject to U.S. export control laws and regulations. By
# accepting this software, the user agrees to comply with all
# applicable U.S. export laws and regulations, including the
# International Traffic and Arms Regulations, 22 C.F.R. 120-130 and
# the Export Administration Regulations, 15 C.F.R. 730-744. User has
# the responsibility to obtain export licenses, or other export
# authority as may be required before exporting such information to
# foreign countries or providing access to foreign nationals. In no
# event shall the California Institute of Technology be liable to any
# party for direct, indirect, special, incidental or consequential
# damages, including lost profits, arising out of the use of this
# software and its documentation, even if the California Institute of
# Technology has been advised of the possibility of such damage.
#
# The California Institute of Technology specifically disclaims any
# warranties, including the implied warranties or merchantability and
# fitness for a particular purpose. The software and documentation
# provided hereunder is on an "as is" basis, and the California
# Institute of Technology has no obligations to provide maintenance,
# support, updates, enhancements or modifications.
#
#=====================================================================
#</LicenseText>
#
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#
"""
Slice horizontal layer(s) from CitcomS output (from batchcombine.py).
Also convert the (x, y) coordinate to (lon, lat).
usage:
zslice(prefix, layer1 [,layer2 [,...]] )
-- slice the specified layer(s)
layer# : layer(s) to plot (count from 0)
zslice(prefix)
-- slice all layers
It can be used in the command line as well.
input:
prefix
outout:
prefix.z###
"""
all = ('zslice')
def zslice(prefix, *ilayers):
from math import pi
r2d = 180.0 / pi
# open input file and read header
input = open(prefix)
nodex, nodey, nodez = input.readline().split('x')
nodez = int(nodez)
#print nodez, ilayers
layers = check_layers(ilayers, nodez)
nlayer = len(layers)
# allocate arrays
output = range(nlayer)
lines = range(nodez)
# open output files
for i in range(nlayer):
zfile = '%s.z%03d' % (prefix, layers[i])
output[i] = open(zfile, 'w')
while 1:
for j in range(nodez):
lines[j] = input.readline()
# file is empty or EOF?
if not lines[nodez-1]:
break
for i in range(nlayer):
layer = layers[i]
# spilt the first 3 columns only, the rest will be
# output as-is
data = lines[layer].split(' ', 3)
lat = 90 - float(data[0])*r2d
lon = float(data[1])*r2d
output[i].write( '%f %f %s' % (lon, lat, data[3]) )
input.close()
for i in range(nlayer):
output[i].close()
return
def check_layers(layers, nodez):
if layers == ():
# if empty, we will slice every layer
layers = range(nodez)
else:
# otherwise, check bounds of layers
for layer in layers:
if not (0<= layer < nodez):
raise ValueError, 'layer out of range (0-%d)' % (nodez - 1)
return layers
# if run as a script
if __name__ == '__main__':
import sys
if len(sys.argv) < 2:
print __doc__
sys.exit(1)
prefix = sys.argv[1]
layers = [ int(x) for x in sys.argv[2:] ]
zslice(prefix, *layers)