pyopensn.aquad.LebedevQuadrature2DXY

class pyopensn.aquad.LebedevQuadrature2DXY

Lebedev quadrature for 2D, XY geometry.

This is a 2D version of the Lebedev quadrature that only includes points in the upper hemisphere (z >= 0). Points on the equator (z = 0) have their weights halved since they are shared between hemispheres.

Wrapper of opensn::LebedevQuadrature2DXY.

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]
__init__(self: pyopensn.aquad.LebedevQuadrature2DXY, **kwargs) → None

Constructs a Lebedev quadrature for 2D, XY geometry.

Parameters:

  • quadrature_order (int) – The order of the quadrature.

  • 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) – Whether to print verbose output during initialization.

property abscissae

Vector of polar and azimuthal angles.

property omegas

Vector of direction vectors.

property weights

Quadrature weights.