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, ...)

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

class ffcx.analysis.UFLData(form_data, unique_elements, element_numbers, unique_coordinate_elements, expressions)[source]

Bases: tuple

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).

Options

ufl_objects options

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

Returns a data structure holding

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

ffcx.analysis.convert_element(element: FiniteElementBase) → _ElementBase[source]: Convert and element to a FFCx element.

ffcx.analysis.warn(message, category=None, stacklevel=1, source=None): Issue a warning, or maybe ignore it or raise an exception.