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implement workaround for table edge issue #53

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Dec 1, 2021
Merged

implement workaround for table edge issue #53

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22 changes: 16 additions & 6 deletions sesame2spiner/generate_files.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@

#include <cmath>
#include <cstdlib>
#include <limits>
#include <string>
#include <vector>

Expand Down Expand Up @@ -203,12 +204,21 @@ herr_t saveAllMaterials(const std::string &savename,

void getMatBounds(int i, int matid, const SesameMetadata &metadata, const Params &params,
Bounds &lRhoBounds, Bounds &lTBounds, Bounds &leBounds) {
Real rhoMin = params.Get("rhomin", metadata.rhoMin);
Real rhoMax = params.Get("rhomax", metadata.rhoMax);
Real TMin = params.Get("Tmin", metadata.TMin);
Real TMax = params.Get("Tmax", metadata.TMax);
Real sieMin = params.Get("siemin", metadata.sieMin);
Real sieMax = params.Get("siemax", metadata.sieMax);

// The "epsilon" shifts here are required to avoid eospac
// extrapolation errors at table bounds
constexpr Real TINY = std::numeric_limits<Real>::epsilon();
auto TinyShift = [=](Real val, int sign) {
Real shift = std::abs(std::min(10*val*TINY, TINY));
return val + sign*shift;
};

Real rhoMin = params.Get("rhomin", TinyShift(metadata.rhoMin,1));
Real rhoMax = params.Get("rhomax", TinyShift(metadata.rhoMax,-1));
Real TMin = params.Get("Tmin", TinyShift(metadata.TMin,1));
Real TMax = params.Get("Tmax", TinyShift(metadata.TMax,-1));
Real sieMin = params.Get("siemin", TinyShift(metadata.sieMin,1));
Real sieMax = params.Get("siemax", TinyShift(metadata.sieMax,-1));

checkValInMatBounds(matid, "rhoMin", rhoMin, metadata.rhoMin, metadata.rhoMax);
checkValInMatBounds(matid, "rhoMax", rhoMax, metadata.rhoMin, metadata.rhoMax);
Expand Down