def build_cfg(user_cfg):
"""
Populate a dictionary containing the s2p parameters from a user config file.
This dictionary is contained in the global variable 'cfg' of the config
module.
Args:
user_cfg: user config dictionary
"""
# check that all the mandatory arguments are defined
check_parameters(user_cfg)
# fill the config module: updates the content of the config.cfg dictionary
# with the content of the user_cfg dictionary
cfg.update(user_cfg)
# sets keys 'clr', 'cld' and 'roi' of the reference image to None if they
# are not already defined. The default values of these optional arguments
# can not be defined directly in the config.py module. They would be
# overwritten by the previous update, because they are in a nested dict.
cfg['images'][0].setdefault('clr')
cfg['images'][0].setdefault('cld')
cfg['images'][0].setdefault('roi')
cfg['images'][0].setdefault('wat')
# Make sure that input data have absolute paths
for i in range(0, len(cfg['images'])):
for d in ['clr', 'cld', 'roi', 'wat', 'img', 'rpc']:
if d in cfg['images'][i] and cfg['images'][i][
d] is not None and not os.path.isabs(cfg['images'][i][d]):
cfg['images'][i][d] = os.path.abspath(cfg['images'][i][d])
x = cfg['roi']['x']
y = cfg['roi']['y']
w = cfg['roi']['w']
h = cfg['roi']['h']
cfg['roi'] = {'x': x, 'y': y, 'w': w, 'h': h}
# get utm zone
if 'utm_zone' not in cfg or cfg['utm_zone'] is None:
cfg['utm_zone'] = rpc_utils.utm_zone(cfg['images'][0]['rpc'], x, y, w,
h)
def build_cfg(user_cfg):
"""
Populate a dictionary containing the s2p parameters from a user config file.
This dictionary is contained in the global variable 'cfg' of the config
module.
Args:
user_cfg: user config dictionary
"""
# check that all the mandatory arguments are defined
check_parameters(user_cfg)
# fill the config module: updates the content of the config.cfg dictionary
# with the content of the user_cfg dictionary
cfg.update(user_cfg)
# set keys 'clr', 'cld' and 'roi' of the reference image to None if they
# are not already defined. The default values of these optional arguments
# can not be defined directly in the config.py module. They would be
# overwritten by the previous update, because they are in a nested dict.
cfg['images'][0].setdefault('clr')
cfg['images'][0].setdefault('cld')
cfg['images'][0].setdefault('roi')
cfg['images'][0].setdefault('wat')
# make sure that input data have absolute paths
for i in range(len(cfg['images'])):
for d in ['clr', 'cld', 'roi', 'wat', 'img']:
if d in cfg['images'][i] and cfg['images'][i][
d] is not None and not os.path.isabs(cfg['images'][i][d]):
cfg['images'][i][d] = os.path.abspath(cfg['images'][i][d])
# get out_crs
if 'out_crs' not in cfg or cfg['out_crs'] is None:
x, y, w, h = [cfg['roi'][k] for k in ['x', 'y', 'w', 'h']]
utm_zone = rpc_utils.utm_zone(cfg['images'][0]['rpcm'], x, y, w, h)
epsg_code = geographiclib.epsg_code_from_utm_zone(utm_zone)
cfg['out_crs'] = "epsg:{}".format(epsg_code)
geographiclib.pyproj_crs(cfg['out_crs'])
# get image ground sampling distance
cfg['gsd'] = rpc_utils.gsd_from_rpc(cfg['images'][0]['rpcm'])