def get_field_index(filename, field_id):
if field_id is not None:
names, _ = shp.get_attribute_names(filename)
try:
return names.index(field_id)
except ValueError:
raise TatooineException("The field `%s` does not exist" % field_id)
def slf_int2d(args):
# Read set of points file
fields, indices = Shapefile.get_attribute_names(args.in_points)
points = []
attributes = []
for point, attribute in Shapefile.get_points(args.in_points, indices):
points.append(point)
attributes.append(attribute)
if not points:
logger.critical('The Shapefile does not contain any point.')
sys.exit(1)
# Read Serafin file
with Serafin.Read(args.in_slf, args.lang) as resin:
resin.read_header()
logger.info(resin.header.summary())
if not resin.header.is_2d:
logger.critical('The file has to be a 2D Serafin!')
sys.exit(3)
resin.get_time()
output_header = resin.header.copy()
mesh = MeshInterpolator(output_header, True)
is_inside, point_interpolators = mesh.get_point_interpolators(points)
nb_inside = sum(map(int, is_inside))
if nb_inside == 0:
logger.critical('No point inside the mesh.')
sys.exit(3)
logger.debug(
'The file contains {} point{}. {} point{} inside the mesh'.format(
len(points), 's' if len(points) > 1 else '', nb_inside,
's are' if nb_inside > 1 else ' is'))
var_IDs = output_header.var_IDs if args.vars is None else args.vars
mode = 'w' if args.force else 'x'
with open(args.out_csv, mode, newline='') as csvfile:
csvwriter = csv.writer(csvfile, delimiter=args.sep)
header = ['time_id', 'time']
if args.long:
header = header + [
'point_id', 'point_x', 'point_y', 'variable', 'value'
]
else:
for pt_id, (x, y) in enumerate(points):
for var in var_IDs:
header.append(
'Point %d %s (%s|%s)' %
(pt_id + 1, var, settings.FMT_COORD.format(x),
settings.FMT_COORD.format(y)))
csvwriter.writerow(header)
for time_index, time in enumerate(tqdm(resin.time, unit='frame')):
values = [time_index, time]
for var_ID in var_IDs:
var = resin.read_var_in_frame(time_index, var_ID)
for pt_id, (point, point_interpolator) in enumerate(
zip(points, point_interpolators)):
if args.long:
values_long = values + [str(pt_id + 1)] + [
settings.FMT_COORD.format(x) for x in point
]
if point_interpolator is None:
if args.long:
csvwriter.writerow(values_long +
[var_ID, settings.NAN_STR])
else:
values.append(settings.NAN_STR)
else:
(i, j, k), interpolator = point_interpolator
int_value = settings.FMT_FLOAT.format(
interpolator.dot(var[[i, j, k]]))
if args.long:
csvwriter.writerow(values_long +
[var_ID, int_value])
else:
values.append(int_value)
if not args.long: csvwriter.writerow(values)