def main():
'''
command line interface for validating a segy file. Returns 0 if okay. If the file is bad
it returns the number of errors
'''
from optparse import OptionParser
parser = OptionParser(usage="%prog [options]",
version="%prog "+__version__+' ('+__date__+')')
common_opts.add_odec(parser)
common_opts.add_verbose(parser)
(options, args) = parser.parse_args()
o = options
v = o.verbose
tot_errors = 0
for filename in args:
sgy = segy.Segy(filename, swap_byte_order=o.swap_byte_order, trace_trailer_size=o.trace_trailer_size)
error_count, errors = validate(sgy,verbose=v)
tot_errors += error_count
if tot_errors>0:
sys.stdout.write('\nERRORS: %d\n'%tot_errors)
return tot_errors
def main():
'''
command line interface for templating
'''
from optparse import OptionParser
parser = OptionParser(usage="%prog [options]")
parser.add_option('-t', '--template', dest='template', default=None,
help='Cheetah template to fill in')
parser.add_option('--year', dest='force_year', default=None, type='int',
help='Force time [default: %default]')
parser.add_option('--julian-day', dest='force_julian_day', default=None, type='int',
help='Force time [default: %default]')
common_opts.add_odec(parser)
common_opts.add_verbose(parser)
(options, args) = parser.parse_args()
o = options
v = o.verbose
if ( (o.force_year is not None and o.force_julian_day is None)
or (o.force_year is None and o.force_julian_day is not None)):
sys.exit('Must specify both year and julian day')
for filename in args:
filesize = os.path.getsize(filename) / 1000000. # Make it MB
outfile = os.path.basename(filename)+'.metadata.txt'
if v:
print 'file: {infile} -> {outfile}'.format(infile=filename,outfile=outfile)
try:
sgy = segy.Segy(filename, swap_byte_order=o.swap_byte_order, trace_trailer_size=o.trace_trailer_size)
sgy.filename = os.path.basename(filename) # Drop the results in the current directory
filename = os.path.basename(filename) # Drop the results in the current directory
(x_min,y_min),(x_max,y_max),(t_min,t_max) = sgy.trace_metadata()
if ( (t_min is None or t_max is None) and o.force_year is None):
sys.exit('ERROR: bad time range. Can you force it?')
if o.force_year is not None:
t_min = None
t_max = None
last_hour = None
if v:
sys.stderr.write('Computing forced time range assuming hour, min, sec are valid')
for tracecount,trace in enumerate(sgy):
if last_hour is not None and last_hour > trace.hour:
raise SegyError('File spans days. That is not okay for forced year/julian day')
last_hour = trace.hour
t = time.strptime('%4d %03d' % (o.force_year,o.force_julian_day),'%Y %j')
t = datetime.datetime(o.force_year,t.tm_mon,t.tm_mday,trace.hour,trace.min,trace.sec)
if not t_min:
t_min = t
t_max = t
line_info = {
'datetime_min':t_min,
'datetime_max':t_max,
'x_min':x_min,
'x_max':x_max,
'y_min':y_min,
'y_max':y_max,
}
if v:
print '''
datetime_min: {datetime_min}
datetime_max: {datetime_max}
x_min: {x_min}
x_max: {x_max}
y_min: {y_min}
y_max: {y_max}'''.format(infile=filename,outfile=outfile,**line_info)
template=open(options.template).read()
t = Cheetah.Template.Template(template,
searchList=[line_info,
{'filename':filename,
'filesize':filesize}
]
)
open(outfile,'w').write(str(t)) # "Render" the template to a file
except Exception, e:
sys.stderr.write(' Exception:' + str(type(Exception))+'\n')
sys.stderr.write(' Exception args:'+ str(e)+'\n')
traceback.print_exc(file=sys.stderr)
sys.stderr.write('BAD file: %s\n' % filename)
o = file(outfile+'.bad','w')
o.write('BAD file: %s\n' % filename)