Interpolation.h

// Copyright 2024, UChicago Argonne, LLC
// All Rights Reserved
// Software Name: NEML2 -- the New Engineering material Model Library, version 2
// By: Argonne National Laboratory
// OPEN SOURCE LICENSE (MIT)
//
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#pragma once
 
#include "neml2/models/Model.h"
 
namespace neml2
{
class Scalar;
 
std::tuple<Scalar, Scalar, Scalar> parametric_coordinates(const Scalar & X, const Scalar & x);
 
template <typename T>
T
apply_mask(const T & a, const Scalar & m, std::size_t mdim)
{
  const auto B = utils::broadcast_dynamic_sizes({a, m});
  auto I = utils::broadcast_sizes(a.intmd_sizes(), m.intmd_sizes());
  const auto am = T(a.batch_expand(B, I).index({m.batch_expand(B, I)}), 0);
  I.erase(I.end() - mdim, I.end()); // Remove the last mdim dimensions
  return am.batch_reshape(B, I);
}

template <typename T>
class Interpolation : public Model
{
public:
  static OptionSet expected_options();
 
  Interpolation(const OptionSet & options);
 
protected:
  const T & _Y;

  Variable<T> & _p;
};
} // namespace neml2