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Downsampling now can be a scalar #120

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Merged
haykh merged 1 commit into from
Jun 27, 2025
Merged

Downsampling now can be a scalar #120

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37 changes: 28 additions & 9 deletions src/framework/parameters.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -31,10 +31,10 @@
namespace ntt {

template <typename M>
auto get_dx0_V0(const std::vector<ncells_t>& resolution,
const boundaries_t<real_t>& extent,
const std::map<std::string, real_t>& params)
-> std::pair<real_t, real_t> {
auto get_dx0_V0(
const std::vector<ncells_t>& resolution,
const boundaries_t<real_t>& extent,
const std::map<std::string, real_t>& params) -> std::pair<real_t, real_t> {
const auto metric = M(resolution, extent, params);
const auto dx0 = metric.dxMin();
coord_t<M::Dim> x_corner { ZERO };
Expand Down Expand Up @@ -491,11 +491,30 @@ namespace ntt {
"fields",
"mom_smooth",
defaults::output::mom_smooth));
auto field_dwn = toml::find_or(toml_data,
"output",
"fields",
"downsampling",
std::vector<unsigned int> { 1, 1, 1 });
std::vector<unsigned int> field_dwn;
try {
auto field_dwn_ = toml::find<std::vector<unsigned int>>(toml_data,
"output",
"fields",
"downsampling");
for (auto i = 0u; i < field_dwn_.size(); ++i) {
field_dwn.push_back(field_dwn_[i]);
}
} catch (...) {
try {
auto field_dwn_ = toml::find<unsigned int>(toml_data,
"output",
"fields",
"downsampling");
for (auto i = 0u; i < dim; ++i) {
field_dwn.push_back(field_dwn_);
}
} catch (...) {
for (auto i = 0u; i < dim; ++i) {
field_dwn.push_back(1u);
}
}
}
raise::ErrorIf(field_dwn.size() > 3, "invalid `output.fields.downsampling`", HERE);
if (field_dwn.size() > dim) {
field_dwn.erase(field_dwn.begin() + (std::size_t)(dim), field_dwn.end());
Expand Down