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Jungfraujoch/tests/IndexingUnitTest.cpp
2025-09-08 20:28:59 +02:00

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2.5 KiB
C++

// SPDX-FileCopyrightText: 2024 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
// SPDX-License-Identifier: GPL-3.0-only
#include <catch2/catch_all.hpp>
#include "../writer/HDF5Objects.h"
#include "../image_analysis/indexing/IndexerFactory.h"
inline double round_err(double x) {
return std::abs(x - std::round(x));
}
#ifdef JFJOCH_USE_CUDA
#include <Eigen/Dense>
TEST_CASE("FastFeedbackIndexer","[Indexing]") {
std::vector<Coord> hkl;
for (int i = 1; i < 7; i++)
for (int j = 1; j<6; j++)
for (int k = 1; k < 4; k++)
hkl.emplace_back(i,j,k);
std::vector<UnitCell> cells;
cells.emplace_back(30,40,50,90,90,90);
cells.emplace_back(80,80,90,90,90,120);
cells.emplace_back(40,45,80,90,82.5,90);
DiffractionExperiment experiment;
experiment.SetUnitCell(cells[0]);
experiment.IndexingAlgorithm(IndexingAlgorithmEnum::FFBIDX);
REQUIRE(experiment.GetIndexingAlgorithm() == IndexingAlgorithmEnum::FFBIDX);
std::unique_ptr<Indexer> indexer = CreateIndexer(experiment);
for (auto &c: cells) {
CrystalLattice l(c);
Eigen::Matrix3f m;
m << l.Vec0().x, l.Vec0().y, l.Vec0().z,
l.Vec1().x, l.Vec1().y, l.Vec1().z,
l.Vec2().x, l.Vec2().y, l.Vec2().z;
auto m1 = m.transpose().inverse();
CrystalLattice recip_l(Coord(m1(0,0), m1(0,1), m1(0,2)),
Coord(m1(1,0), m1(1,1), m1(1,2)),
Coord(m1(2,0), m1(2,1), m1(2,2)));
std::vector<Coord> recip;
recip.reserve(hkl.size());
for (const auto &i: hkl)
recip.emplace_back(i.x * recip_l.Vec0() + i.y * recip_l.Vec1() + i.z * recip_l.Vec2());
experiment.SetUnitCell(c);
indexer->Setup(experiment);
auto ret = indexer->Run(recip, recip.size());
REQUIRE(!ret.empty());
//auto uc = ret[0].GetUnitCell();
//REQUIRE(c.a == Catch::Approx(uc.a));
//REQUIRE(c.b == Catch::Approx(uc.b));
//REQUIRE(c.c == Catch::Approx(uc.c));
double err[3] = {0.0, 0.0, 0.0};
for (const auto &iter: recip) {
err[0] += round_err(ret[0].Vec0() * iter);
err[1] += round_err(ret[0].Vec1() * iter);
err[2] += round_err(ret[0].Vec2() * iter);
}
REQUIRE (err[0] < 0.001 * recip.size());
REQUIRE (err[1] < 0.001 * recip.size());
REQUIRE (err[2] < 0.001 * recip.size());
}
}
#endif