pycba.load_cases.sign_selective_envelope#
- sign_selective_envelope(B, load_positions=None)[source]#
Sum same-sign load-case contributions at each station.
The negative envelope is the sum of all negative contributors at each station. The positive envelope is the sum of all positive contributors. The returned position masks identify which load cases contributed to each station envelope.
- Return type:
tuple[ndarray,ndarray,ndarray,ndarray]