leonarski_fandClaude Opus 5.5
380cdf3dc7
- A given cell keeps only the frames whose refined cell belongs to its population (GivenCellPopulation): the peak of the refined-volume histogram nearest the given cell, out to the valley that separates it from another population, with the bin set by the data's own spread. A sample of two crystal forms indexed against one form's cell otherwise merges both; a run with one population keeps every frame. - The distance grid is run from every centre hypothesis, not only the one decided at the file's distance, and a local grid of centres follows at the distance decided. A wrong header distance and a centre several pixels off (both background estimators misread it on a Rayonix set) otherwise leave each other flat; now the cell alone finds both. - A distance given with --detector-distance is not searched. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
51 lines
1.8 KiB
C++
51 lines
1.8 KiB
C++
// SPDX-FileCopyrightText: 2026 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
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// SPDX-License-Identifier: GPL-3.0-only
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#include <random>
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#include <catch2/catch_all.hpp>
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#include "../image_analysis/scale_merge/CellPopulation.h"
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TEST_CASE("CellPopulation_OnePopulationKeepsEverything", "[CellPopulation][portable]") {
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std::mt19937 rng(7);
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std::normal_distribution<double> d(0.004, 0.01);
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std::vector<double> r(2000);
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for (auto &x : r) x = d(rng);
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const auto [low, high] = GivenCellPopulation(r);
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for (double x : r)
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CHECK((x >= low && x <= high));
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}
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TEST_CASE("CellPopulation_SecondFormLeftOut", "[CellPopulation][portable]") {
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// Two crystal forms 9% apart in volume, the given cell one of them; whichever is given, its own
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// population is kept and the other left out.
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std::mt19937 rng(11);
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std::normal_distribution<double> small(0.0, 0.012), large(0.09, 0.008);
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std::vector<double> r;
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for (int i = 0; i < 450; i++) r.push_back(small(rng));
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for (int i = 0; i < 150; i++) r.push_back(large(rng));
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// Kept frames of each form, against either cell.
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const auto kept = [](const std::vector<double> &x, size_t from, size_t to) {
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const auto [low, high] = GivenCellPopulation(x);
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size_t n = 0;
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for (size_t i = from; i < to; i++)
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n += (x[i] >= low && x[i] <= high);
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return n;
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};
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CHECK(kept(r, 0, 450) > 440);
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CHECK(kept(r, 450, 600) < 3);
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std::vector<double> r2;
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for (double x : r) r2.push_back((1.0 + x) / 1.09 - 1.0);
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CHECK(kept(r2, 450, 600) > 145);
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CHECK(kept(r2, 0, 450) < 5);
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}
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TEST_CASE("CellPopulation_TooFewFrames", "[CellPopulation][portable]") {
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const auto [low, high] = GivenCellPopulation({0.0, 0.1, 0.2});
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CHECK(std::isinf(low));
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CHECK(std::isinf(high));
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}
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