Degree of freedom (DOF) descriptions¶

class grudge.dof_desc.DTAG_SCALAR[source]¶: A domain tag denoting scalar values.

class grudge.dof_desc.DTAG_VOLUME_ALL[source]¶: A domain tag denoting values defined in all cell volumes.

class grudge.dof_desc.DTAG_BOUNDARY(tag)[source]¶

A domain tag describing the values on element boundaries which are adjacent to elements of another Mesh.

tag¶

__init__(tag)[source]¶

Parameters: tag – One of the following: BTAG_ALL, BTAG_NONE, BTAG_REALLY_ALL, BTAG_PARTITION.

__eq__(other)[source]¶: Return self==value.

__ne__(other)[source]¶: Return self!=value.

__hash__()[source]¶: Return hash(self).

class grudge.dof_desc.DISCR_TAG_BASE[source]¶: A discretization tag indicating the use of a basic discretization grid. This tag is used to distinguish the base discretization from quadrature (e.g. overintegration) or modal (DISCR_TAG_MODAL) discretizations.

class grudge.dof_desc.DISCR_TAG_QUAD[source]¶

A discretization tag indicating the use of a quadrature discretization grid. This tag is used to distinguish the quadrature discretization (e.g. overintegration) from modal (DISCR_TAG_MODAL) or base (DISCR_TAG_BASE) discretizations.

For working with multiple quadrature grids, it is recommended to create appropriate subclasses of DISCR_TAG_QUAD and define appropriate DOFDesc objects corresponding to each subclass. For example:

class CustomQuadTag(DISCR_TAG_QUAD):
    "A custom quadrature discretization tag."

dd = DOFDesc(DTAG_VOLUME_ALL, CustomQuadTag)

class grudge.dof_desc.DISCR_TAG_MODAL[source]¶: A discretization tag indicating the use of a basic discretization grid with modal degrees of freedom. This tag is used to distinguish the modal discretization from the base (nodal) discretization (e.g. DISCR_TAG_BASE) or discretizations on quadrature grids (DISCR_TAG_QUAD).

class grudge.dof_desc.DOFDesc(domain_tag, discretization_tag=None, quadrature_tag=None)[source]¶

Describes the meaning of degrees of freedom.

domain_tag¶

discretization_tag¶

__init__(domain_tag, discretization_tag=None, quadrature_tag=None)[source]¶

Parameters

domain_tag – One of the following: DTAG_SCALAR (or the string "scalar"), DTAG_VOLUME_ALL (or the string "vol") for the default volume discretization, FACE_RESTR_ALL (or the string "all_faces"), or FACE_RESTR_INTERIOR (or the string "int_faces"), or one of BTAG_ALL, BTAG_NONE, BTAG_REALLY_ALL, BTAG_PARTITION, or None to indicate that the geometry is not yet known.
discretization_tag – None or DISCR_TAG_BASE to indicate the use of the basic discretization grid, DISCR_TAG_MODAL to indicate a modal discretization, or DISCR_TAG_QUAD to indicate the use of a quadrature grid.

is_scalar()[source]¶

is_discretized()[source]¶

is_volume()[source]¶

is_boundary_or_partition_interface()[source]¶

is_trace()[source]¶

uses_quadrature()[source]¶

with_discr_tag(discr_tag)[source]¶

with_dtag(dtag)[source]¶

__eq__(other)[source]¶: Return self==value.

__ne__(other)[source]¶: Return self!=value.

__hash__()[source]¶: Return hash(self).

grudge.dof_desc.as_dofdesc(dd)[source]¶

grudge.dof_desc.DD_SCALAR¶

grudge.dof_desc.DD_VOLUME¶

grudge.dof_desc.DD_VOLUME_MODAL¶