Revision 4bcf0ad9a6a07c115ae289374bbd219751706570 authored by Eh Tan on 05 October 2007, 19:58:31 UTC, committed by Eh Tan on 05 October 2007, 19:58:31 UTC
1 parent 820d139
dxgeneral.py
#!/usr/bin/env python
#
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#
#<LicenseText>
#
# CitcomS.py by Eh Tan, Eun-seo Choi, and Pururav Thoutireddy.
# Copyright (C) 2002-2005, California Institute of Technology.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
#</LicenseText>
#
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#
'''Create OpenDX .general file for combined Citcom Data
Usage: dxgeneral.py combined_fields ncompositions file1 [file2 [...]]
'''
import os, sys
def write(opts, ncomp, filenames):
for filename in filenames:
if not os.path.exists(filename):
print 'file "%s" does not exist' % filename
sys.exit(1)
shape = get_shape(filename)
outfile = filename + '.general'
f = open(outfile, 'w')
try:
write_general_file(f, filename, opts, shape, ncomp)
finally:
f.close()
return
def get_shape(filename):
# the first line of the file contains the shape information
header = open(filename).readline()
shape = tuple([int(x) for x in header.split('x')])
return shape
def write_general_file(f, filename, opts, shape, ncomp):
template = '''file = %(filename)s
grid = %(shape_str)s
format = ascii
interleaving = field
majority = row
header = lines 1
field = %(opt_field_str)s
structure = %(opt_struct_str)s
type = %(opt_type_str)s
end
'''
# mapping from opt name to field name
field = {'comp_nd': 'composition',
'coord': 'locations',
'pressure': 'pressure',
'stress': 'stress',
'velo': 'velocity, temperature',
'visc': 'viscosity'}
# mapping from opt name to data structure
struct = {'comp_nd': 'scalar',
'coord': '3-vector',
'pressure': 'scalar',
'stress': '6-vector',
'velo': '3-vector, scalar',
'visc': 'scalar'}
# 'comp_nd' needs special treatment
if ncomp > 1:
struct['comp_nd'] = '%d-vector' % ncomp
# mapping from opt name to data type
type = {'comp_nd': 'float',
'coord': 'float',
'pressure': 'float',
'stress': 'float',
'velo': 'float, float',
'visc': 'float'}
opt_field = []
opt_struct = []
opt_type = []
for opt in opts.split(','):
opt = opt.strip()
opt_field.append(field[opt])
opt_struct.append(struct[opt])
opt_type.append(type[opt])
# swap the order of shape for correct connectivity
shape_str = '%d x %d x %d' % (shape[1], shape[0], shape[2])
opt_field_str = ', '.join(opt_field)
opt_struct_str = ', '.join(opt_struct)
opt_type_str = ', '.join(opt_type)
f.write(template % vars())
return
if __name__ == '__main__':
if len(sys.argv) < 3:
print __doc__
sys.exit(1)
opts = sys.argv[1]
ncomp = int(sys.argv[2])
filenames = sys.argv[3:]
write(opts, ncomp, filenames)
# End of file
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