lattice.h

// Copyright (c) 2020-2022 Chris Richardson and Garth N. Wells
// FEniCS Project
// SPDX-License-Identifier:    MIT
 
#pragma once
 
#include "cell.h"
#include <array>
#include <concepts>
#include <utility>
#include <vector>

namespace basix::lattice
{
enum class type
{
  equispaced = 0, 
  gll = 1,        
  chebyshev = 2,  
  gl = 4,         
  chebyshev_plus_endpoints
  = 10, 
  gl_plus_endpoints
  = 11, 
};

enum class simplex_method
{
  none = 0,     
  warp = 1,     
  isaac = 2,    
  centroid = 3, 
};

template <std::floating_point T>
std::pair<std::vector<T>, std::array<std::size_t, 2>>
create(cell::type celltype, int n, lattice::type type, bool exterior,
       lattice::simplex_method simplex_method = lattice::simplex_method::none);
 
} // namespace basix::lattice