pyopensn.aquad.SLDFEsqQuadrature3DXYZ

class pyopensn.aquad.SLDFEsqQuadrature3DXYZ

Piecewise-linear finite element quadrature using quadrilaterals.

GetDiscreteToMomentOperator(self: pyopensn.aquad.AngularQuadrature) → numpy.ndarray[numpy.float64]: Get the discrete-to-moment operator as a numpy array.

GetMomentToDiscreteOperator(self: pyopensn.aquad.AngularQuadrature) → numpy.ndarray[numpy.float64]: Get the moment-to-discrete operator as a numpy array.

GetMomentToHarmonicsIndexMap(self: pyopensn.aquad.AngularQuadrature) → list[pyopensn.aquad.HarmonicIndices]

LocallyRefine(self: pyopensn.aquad.SLDFEsqQuadrature3DXYZ, ref_dir: pyopensn.math.Vector3, cone_size: float, dir_as_plane_normal: bool = False) → None

Locally refines the cells.

Parameters:

ref_dir (pyopensn.math.Vector3) – Reference direction \(\vec{r}\).
cone_size (float) – Cone size (in radians) \(\theta\).
dir_as_plane_normal (bool, default=False) – If true, interpret SQ-splitting as when \(|\omega \cdot \vec{r}| < \sin(\theta)\). Otherwise, SQs will be split if \(\omega \cdot \vec{r} > \cos(\theta)\).

PrintQuadratureToFile(self: pyopensn.aquad.SLDFEsqQuadrature3DXYZ, file_base: str) → None

Prints the quadrature to file.

Generates uniform spherical quadrilaterals from the subdivision of an inscribed cube.

Parameters:

level (int) – Number of subdivisions of the inscribed cube.
scattering_order (int) – Maximum scattering order supported by the angular quadrature. Optional when operator_method='galerkin_one', in which case the scattering order is automatically determined so that the number of moments equals the number of angles.
operator_method ({'standard', 'galerkin_one', 'galerkin_three'}, default='standard') – Method used to construct the discrete-to-moment and moment-to-discrete operators.
verbose (bool, default=False) – Verbosity.