neptoon.data_prep cutoff_rigidity_lookup¶ Classes: GVLookup Functions: get_gv GVLookup ¶ GVLookup(path=None) Initialize with CSV file containing GV lookup table. get_gv ¶ get_gv(lat, lon) Get GV value for given lat/lon coordinates. Args: lat: Latitude (-90 to 90) lon: Longitude (-180 to 180) Returns: Interpolated GV value