...
This commit is contained in:
parent
5279d1c41a
commit
01485ed2e1
@ -25,5 +25,6 @@ FortranCInterface_HEADER(FortranCInterface.h
|
||||
)
|
||||
|
||||
add_library(fitpack STATIC ${src_files} fitpack.h)
|
||||
set(FITPACK_INCLUDE_DIR ${CMAKE_CURRENT_BINARY_DIR})
|
||||
|
||||
|
||||
|
||||
@ -1,6 +1,10 @@
|
||||
#pragma once
|
||||
|
||||
#include <expected>
|
||||
#include <limits>
|
||||
#include <memory>
|
||||
#include <ranges>
|
||||
#include <vector>
|
||||
|
||||
namespace mcc::fitpack
|
||||
{
|
||||
@ -125,10 +129,242 @@ void sphere(int* iopt,
|
||||
}
|
||||
|
||||
|
||||
template <std::ranges::input_range TethaT, std::ranges::input_range PhiT>
|
||||
int fitpack_sphere(const TethaT& tetha, const PhiT& phi)
|
||||
|
||||
template <std::ranges::contiguous_range TethaT,
|
||||
std::ranges::contiguous_range PhiT,
|
||||
std::ranges::contiguous_range FuncT,
|
||||
typename WeightT,
|
||||
std::ranges::contiguous_range TKnotT,
|
||||
std::ranges::contiguous_range PKnotT,
|
||||
std::ranges::contiguous_range CoeffT>
|
||||
int fitpack_sphere_smooth(const TethaT& tetha,
|
||||
const PhiT& phi,
|
||||
const FuncT& func,
|
||||
const WeightT& weight,
|
||||
double s_par,
|
||||
int& ntest,
|
||||
int& npest,
|
||||
TKnotT& tetha_knots,
|
||||
PKnotT& phi_knots,
|
||||
CoeffT& coeffs,
|
||||
double& resi2_sum,
|
||||
double eps = std::numeric_limits<double>::epsilon())
|
||||
requires((std::ranges::contiguous_range<WeightT> || std::convertible_to<WeightT, double>) &&
|
||||
std::ranges::output_range<CoeffT, double>)
|
||||
{
|
||||
static_assert(std::same_as<std::ranges::range_value_t<TethaT>, double> &&
|
||||
std::same_as<std::ranges::range_value_t<PhiT>, double> &&
|
||||
std::same_as<std::ranges::range_value_t<FuncT>, double> &&
|
||||
std::same_as<std::ranges::range_value_t<TKnotT>, double> &&
|
||||
std::same_as<std::ranges::range_value_t<PKnotT>, double>,
|
||||
"Input ranges elements type must be double!");
|
||||
|
||||
if constexpr (std::ranges::contiguous_range<WeightT>) {
|
||||
static_assert(std::same_as<std::ranges::range_value_t<WeightT>, double>,
|
||||
"Input ranges elements type must be double!");
|
||||
}
|
||||
|
||||
auto m = std::min(std::min(std::ranges::size(tetha), std::ranges::size(phi)), std::ranges::size(func));
|
||||
if (m < 2) {
|
||||
return 10;
|
||||
}
|
||||
|
||||
int res = 0;
|
||||
|
||||
/* do checking here to avoid possibly unnecessary memory allocations */
|
||||
|
||||
// number of knots must be >= 8 for the qubic b-splines
|
||||
if (ntest < 8 || npest < 8) {
|
||||
return 10;
|
||||
}
|
||||
|
||||
if constexpr (std::ranges::contiguous_range<WeightT>) {
|
||||
m = std::min(m, std::ranges::size(weight));
|
||||
if (m < 2) {
|
||||
return 10;
|
||||
}
|
||||
}
|
||||
|
||||
if (s_par <= 0.0) {
|
||||
return 10;
|
||||
}
|
||||
|
||||
if (eps <= 0.0 || eps >= 1.0) {
|
||||
return 10;
|
||||
}
|
||||
|
||||
const auto nt = std::ranges::size(tetha_knots);
|
||||
const auto np = std::ranges::size(phi_knots);
|
||||
|
||||
if (nt < ntest) {
|
||||
std::ranges::fill_n(std::back_inserter(tetha_knots), ntest - nt, 0.0);
|
||||
}
|
||||
if (np < npest) {
|
||||
std::ranges::fill_n(std::back_inserter(phi_knots), npest - np, 0.0);
|
||||
}
|
||||
|
||||
|
||||
// compute working arrays sizes according to sphere.f
|
||||
const int u = ntest - 7;
|
||||
const int v = npest - 7;
|
||||
const int uv = u * v;
|
||||
const int v2 = v * v;
|
||||
|
||||
const int lwrk1 = 185 + 52 * v + 10 * u + 14 * uv + 8 * (u - 1) * v2 + 8 * m;
|
||||
const int lwrk2 = 48 + 21 * v + 7 * uv + 4 * (u - 1) * v2;
|
||||
const int kwrk = m + uv;
|
||||
|
||||
std::unique_ptr<double> wrk1{new double(lwrk1)};
|
||||
std::unique_ptr<double> wrk2{new double(lwrk2)};
|
||||
std::unique_ptr<int> iwrk{new int(kwrk)};
|
||||
|
||||
const int n_coeffs = (ntest - 4) * (npest - 4);
|
||||
if (std::ranges::size(coeffs) < n_coeffs) { // resize
|
||||
std::ranges::fill_n(std::back_inserter(coeffs), n_coeffs - std::ranges::size(coeffs), 0.0);
|
||||
}
|
||||
|
||||
const int iopt = 0;
|
||||
|
||||
if constexpr (std::ranges::contiguous_range<WeightT>) {
|
||||
res = sphere(&iopt, &m, std::ranges::data(tetha), std::ranges::data(phi), std::ranges::data(func),
|
||||
std::ranges::data(weight), &s_par, &ntest, &npest, &eps, &ntest, std::ranges::data(tetha_knots),
|
||||
&npest, std::ranges::data(phi_knots), std::ranges::data(coeffs), &resi2_sum, wrk1.get(), &lwrk1,
|
||||
wrk2.get(), &lwrk2, iwrk.get(), &kwrk, &res);
|
||||
} else {
|
||||
std::vector<double> weight_vec(m, weight);
|
||||
|
||||
res = sphere(&iopt, &m, std::ranges::data(tetha), std::ranges::data(phi), std::ranges::data(func),
|
||||
weight_vec.data(), &s_par, &ntest, &npest, &eps, &ntest, std::ranges::data(tetha_knots), &npest,
|
||||
std::ranges::data(phi_knots), std::ranges::data(coeffs), &resi2_sum, wrk1.get(), &lwrk1,
|
||||
wrk2.get(), &lwrk2, iwrk.get(), &kwrk, &res);
|
||||
}
|
||||
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
/*
|
||||
least-squares fitting (iopt=-1)
|
||||
*/
|
||||
template <std::ranges::contiguous_range TethaT,
|
||||
std::ranges::contiguous_range PhiT,
|
||||
std::ranges::contiguous_range FuncT,
|
||||
typename WeightT,
|
||||
std::ranges::contiguous_range TKnotT,
|
||||
std::ranges::contiguous_range PKnotT,
|
||||
std::ranges::contiguous_range CoeffT>
|
||||
int fitpack_sphere_fit(const TethaT& tetha,
|
||||
const PhiT& phi,
|
||||
const FuncT& func,
|
||||
const WeightT& weight,
|
||||
const TKnotT& tetha_knots,
|
||||
const PKnotT& phi_knots,
|
||||
CoeffT& coeffs,
|
||||
double& resi2_sum,
|
||||
double eps = std::numeric_limits<double>::epsilon())
|
||||
{
|
||||
const double s = 100.0;
|
||||
int nt = std::ranges::size(tetha_knots);
|
||||
int np = std::ranges::size(phi_knots);
|
||||
|
||||
return fitpack_sphere_smooth(tetha, phi, func, weight, s, nt, np, tetha_knots, phi_knots, coeffs, resi2_sum, eps);
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
template <std::ranges::contiguous_range TethaT,
|
||||
std::ranges::contiguous_range PhiT,
|
||||
std::ranges::contiguous_range FuncT,
|
||||
typename WeightT,
|
||||
std::ranges::contiguous_range TKnotT,
|
||||
std::ranges::contiguous_range PKnotT,
|
||||
std::ranges::contiguous_range CoeffT>
|
||||
int fitpack_sphere_fit(const TethaT& tetha,
|
||||
const PhiT& phi,
|
||||
const FuncT& func,
|
||||
const WeightT& weight,
|
||||
const TKnotT& tetha_knots,
|
||||
const PKnotT& phi_knots,
|
||||
CoeffT& coeffs,
|
||||
double& resi2_sum,
|
||||
double eps = std::numeric_limits<double>::epsilon())
|
||||
requires((std::ranges::contiguous_range<WeightT> || std::convertible_to<WeightT, double>) &&
|
||||
std::ranges::output_range<CoeffT, double>)
|
||||
{
|
||||
static_assert(std::same_as<std::ranges::range_value_t<TethaT>, double> &&
|
||||
std::same_as<std::ranges::range_value_t<PhiT>, double> &&
|
||||
std::same_as<std::ranges::range_value_t<FuncT>, double> &&
|
||||
std::same_as<std::ranges::range_value_t<TKnotT>, double> &&
|
||||
std::same_as<std::ranges::range_value_t<PKnotT>, double>,
|
||||
"Input ranges elements type must be double!");
|
||||
|
||||
if constexpr (std::ranges::contiguous_range<WeightT>) {
|
||||
static_assert(std::same_as<std::ranges::range_value_t<WeightT>, double>,
|
||||
"Input ranges elements type must be double!");
|
||||
}
|
||||
|
||||
auto m = std::min(std::min(std::ranges::size(tetha), std::ranges::size(phi)), std::ranges::size(func));
|
||||
if (m < 2) {
|
||||
return 10;
|
||||
}
|
||||
|
||||
int res = 0;
|
||||
|
||||
const auto nt = std::ranges::size(tetha_knots);
|
||||
const auto np = std::ranges::size(phi_knots);
|
||||
|
||||
// number of knots must be >= 8 for the qubic b-splines
|
||||
if (std::min(nt, np) < 8) {
|
||||
return 10;
|
||||
}
|
||||
|
||||
if constexpr (std::ranges::contiguous_range<WeightT>) {
|
||||
m = std::min(m, std::ranges::size(weight));
|
||||
if (m < 2) {
|
||||
return 10;
|
||||
}
|
||||
}
|
||||
|
||||
// compute working arrays sizes according to sphere.f
|
||||
const int u = nt - 7;
|
||||
const int v = np - 7;
|
||||
const int uv = u * v;
|
||||
const int v2 = v * v;
|
||||
|
||||
const int lwrk1 = 185 + 52 * v + 10 * u + 14 * uv + 8 * (u - 1) * v2 + 8 * m;
|
||||
const int lwrk2 = 48 + 21 * v + 7 * uv + 4 * (u - 1) * v2;
|
||||
const int kwrk = m + uv;
|
||||
|
||||
std::unique_ptr<double> wrk1{new double(lwrk1)};
|
||||
std::unique_ptr<double> wrk2{new double(lwrk2)};
|
||||
std::unique_ptr<int> iwrk{new int(kwrk)};
|
||||
|
||||
const int n_coeffs = (nt - 4) * (np - 4);
|
||||
if (std::ranges::size(coeffs) < n_coeffs) { // resize
|
||||
std::ranges::fill_n(std::back_inserter(coeffs), n_coeffs - std::ranges::size(coeffs), 0.0);
|
||||
}
|
||||
|
||||
const int iopt = -1;
|
||||
const double s = 100.0;
|
||||
|
||||
if constexpr (std::ranges::contiguous_range<WeightT>) {
|
||||
res = sphere(&iopt, &m, std::ranges::data(tetha), std::ranges::data(phi), std::ranges::data(func),
|
||||
std::ranges::data(weight), &s, &nt, &np, &eps, &nt, std::ranges::data(tetha_knots), &np,
|
||||
std::ranges::data(phi_knots), std::ranges::data(coeffs), &resi2_sum, wrk1.get(), &lwrk1,
|
||||
wrk2.get(), &lwrk2, iwrk.get(), &kwrk, &res);
|
||||
} else {
|
||||
std::vector<double> weight_vec(m, weight);
|
||||
|
||||
res = sphere(&iopt, &m, std::ranges::data(tetha), std::ranges::data(phi), std::ranges::data(func),
|
||||
weight_vec.data(), &s, &nt, &np, &eps, &nt, std::ranges::data(tetha_knots), &np,
|
||||
std::ranges::data(phi_knots), std::ranges::data(coeffs), &resi2_sum, wrk1.get(), &lwrk1,
|
||||
wrk2.get(), &lwrk2, iwrk.get(), &kwrk, &res);
|
||||
}
|
||||
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
*/
|
||||
|
||||
} // namespace mcc::fitpack
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user