ffcx.element_interface#

Finite element interface.

Functions

`basix_index`(indices)	Get the Basix index of a derivative.
`create_quadrature`(cellname, degree, rule, ...)	Create a quadrature rule.
`map_edge_points`(points, edge, cellname)	Map points from a reference edge to a physical edge.
`map_facet_points`(points, facet, cellname)	Map points from a reference facet to a physical facet.
`reference_cell_vertices`(cellname)	Get the vertices of a reference cell.

ffcx.element_interface.basix_index(indices: tuple[int]) → int[source]#: Get the Basix index of a derivative.

ffcx.element_interface.create_quadrature(cellname: str, degree: int, rule: str, elements: list[_ElementBase]) → tuple[ArrayLike, ArrayLike][source]#: Create a quadrature rule.

ffcx.element_interface.map_edge_points(points: NDArray[float64], edge: int, cellname: str) → NDArray[float64][source]#: Map points from a reference edge to a physical edge.

ffcx.element_interface.map_facet_points(points: NDArray[float64], facet: int, cellname: str) → NDArray[float64][source]#: Map points from a reference facet to a physical facet.

ffcx.element_interface.reference_cell_vertices(cellname: str) → NDArray[float64][source]#: Get the vertices of a reference cell.