ffcx.analysis

Compiler stage 1: Analysis.

This module implements the analysis/preprocessing of variational forms, including automatic selection of elements, degrees and form representation type.

Functions

analyze_ufl_objects(ufl_objects, options)

Analyze ufl object(s).

Classes

UFLData(form_data, unique_elements, ...)

UFL data.

class ffcx.analysis.UFLData(form_data: tuple[FormData, ...], unique_elements: list[_ElementBase], element_numbers: dict[_ElementBase, int], unique_coordinate_elements: list[_ElementBase], expressions: list[tuple[Expr, ndarray[Any, dtype[float64]], Expr]])[source]

Bases: NamedTuple

UFL data.

Create new instance of UFLData(form_data, unique_elements, element_numbers, unique_coordinate_elements, expressions)

element_numbers: dict[_ElementBase, int]

Alias for field number 2

expressions: list[tuple[Expr, ndarray[Any, dtype[float64]], Expr]]

Alias for field number 4

form_data: tuple[FormData, ...]

Alias for field number 0

unique_coordinate_elements: list[_ElementBase]

Alias for field number 3

unique_elements: list[_ElementBase]

Alias for field number 1

ffcx.analysis.analyze_ufl_objects(ufl_objects: list, options: dict) UFLData[source]

Analyze ufl object(s).

Parameters:
  • ufl_objects – UFL objects

  • options – FFCx options. These options take priority over all other set options.

Returns:

form_datas: Form_data objects unique_elements: Unique elements across all forms and expressions element_numbers: Mapping to unique numbers for all elements unique_coordinate_elements: Unique coordinate elements across all forms and expressions expressions: List of all expressions after post-processing, with its evaluation points

and the original expression

Return type:

A data structure holding