_TrussLoad

class _TrussLoad(dll: SofDll)

Bases: object

The _TrussLoad class provides methods and data structure to: * access and load the keys 161/LC of the CDB file; * store these data in a convenient format; * provide access to these data.

clear(load_case: int) → None

Clear the loaded data for the given load_case number.

clear_all() → None

Clear the loaded data for all the load cases.

get(element_id: int, load_case: int, load_type: str, point: str = 'PA', default: float | None = None) → float

Retrieve the requested truss load.

Parameters:

• element_id (int) – Truss element number

• load_case (int) – Load case number

• load_type (str) –

  Load type to retrieve. Must be one of:

  • "PG"

  • "PXX"

  • "PYY"

  • "PZZ"

  • "EX"

  • "WX"

  • "DT"

  • "VX"

  • "PXP"

  • "PYP"

  • "PZP"

• point (str, default "PA") – Location on the truss where the load is applied; either the start ("PA") or the end ("PE")

• default (float or None, default None) – Value to return if the requested load is not found

Returns:

value – The requested load if found. Otherwise, returns default when it is not None.

Return type:

float

Notes

If there are multiple entries for the same node and load case, this method returns the sum of all corresponding values. To access the individual entries without aggregation, use the get_data method.

Raises:

LookupError – If the requested load is not found and default is None.

get_data(deep: bool = True) → DataFrame

Return the pandas.DataFrame containing the loaded keys 151/LC.

Parameters:

deep (bool, default True) – When deep=True, a new object will be created with a copy of the calling object’s data and indices. Modifications to the data or indices of the copy will not be reflected in the original object (refer to pandas.DataFrame.copy() documentation for details).

load(load_cases: int | list[int]) → None

Retrieve truss load data for the given load_cases. If a load case is not found, a warning is raised only if echo_level > 0.

Parameters:

load_cases (int | list[int]) – load case numbers

Notes

Wind and snow loads are not implemented and will raise a runtime error if they are present in the requested load case.

set_echo_level(echo_level: int) → None

Set the echo level.