49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
// SPDX-FileCopyrightText: 2025 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
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// SPDX-License-Identifier: GPL-3.0-only
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#ifndef JFJOCH_FFTINDEXER_H
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#define JFJOCH_FFTINDEXER_H
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#include "Indexer.h"
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#include "../../common/UnitCell.h"
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#include "../../common/Coord.h"
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#include "../../common/CrystalLattice.h"
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#include "../../common/IndexingSettings.h"
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#include "FFTResult.h"
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#define FFT_MAX_SPOTS (64*1024)
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class FFTIndexer : public Indexer {
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protected:
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const float min_length_A;
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const float max_length_A;
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const float min_angle_deg;
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const float max_angle_deg;
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const int nDirections;
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float histogram_spacing;
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int64_t histogram_size;
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std::vector<Coord> direction_vectors;
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size_t input_size;
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size_t output_size;
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// Per-direction best peaks (host)
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std::vector<FFTResult> result_fft;
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void SetupUnitCell(const std::optional<UnitCell> &cell) override;
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std::vector<CrystalLattice> ReduceResults(const std::vector<Coord> &results) const;
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std::vector<Coord> FilterFFTResults() const;
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void SetupDirectionVectors();
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virtual void ExecuteFFT(const std::vector<Coord> &coord, size_t nspots) = 0;
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public:
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explicit FFTIndexer(const IndexingSettings& settings);
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~FFTIndexer() override = default;
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std::vector<CrystalLattice> Run(const std::vector<Coord> &coord, size_t nspots) override;
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};
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#endif //JFJOCH_FFTINDEXER_H
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