excgrid::AngularGrid Class Reference

#include <grid.hpp>

Public Member Functions
std::size_t	Size () const noexcept
std::size_t	Degree () const noexcept
std::array< double, 3 >	Point (std::size_t index) const noexcept
double	Weight (std::size_t index) const noexcept

Static Public Member Functions
static Result< AngularGrid >	Create (std::size_t pointCount)

Static Public Attributes
static constexpr std::span< const std::size_t, internal::kLebedevSizeCount >	kAvailableSizes
	The available point counts, smallest first.

Detailed Description

A Lebedev-Laikov angular quadrature on the unit sphere.

The point set is closed under the octahedral group and the weights integrate every polynomial of total degree <= Degree() exactly. The tables are SOLVED for from these two defining conditions by tools/gen_lebedev.py (no copied tables) and certified per size to max |moment residual| < 1e-60. Weights are normalized so that they sum to 4 pi, the area of the unit sphere.

---

The documentation for this class was generated from the following file:

• include/excgrid/grid.hpp