Files
Jungfraujoch/tools/XdsIntegrateParser.cpp

143 lines
3.9 KiB
C++

// SPDX-FileCopyrightText: 2024 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
// SPDX-License-Identifier: GPL-3.0-only
#include "XdsIntegrateParser.h"
#include <fstream>
#include <sstream>
#include <stdexcept>
#include "../common/ResolutionShells.h"
IntegrateMap ParseXdsIntegrateHkl(const std::string& filename) {
std::ifstream in(filename);
if (!in.is_open()) {
throw std::runtime_error("Failed to open INTEGRATE.HKL file: " + filename);
}
IntegrateMap result;
std::string line;
while (std::getline(in, line)) {
if (line.empty()) continue;
char c0 = line.front();
if (c0 == '!' || c0 == '#') continue;
std::istringstream iss(line);
int32_t h, k, l;
double I, sigma;
double xcal, ycal, zcal, rlp, peak, corr;
int32_t maxc;
if (!(iss >> l >> k >> h >> I >> sigma >> xcal >> ycal >> zcal >> rlp >> peak >> corr >> maxc)) {
continue;
}
HKLData entry;
entry.h = -h;
entry.k = k;
entry.l = l;
entry.I = I;
entry.sigma = sigma;
entry.rlp = rlp;
entry.image_number = zcal;
double v = 0.0;
while (iss >> v) {
entry.tail.push_back(v);
}
result[hkl_key_16(-h, k, l)].push_back(std::move(entry));
}
return result;
}
namespace {
double SumIntensity(const std::vector<HKLData>& v) {
double s = 0.0;
for (const auto& e : v)
s += e.I;
return s;
}
} // namespace
CcHalfByResolutionResult ComputeCcByResolution(
const CrystalLattice& lattice,
const IntegrateMap& ours,
const IntegrateMap& xds,
float d_min,
float d_max,
int32_t nshells) {
ResolutionShells shells(d_min, d_max, nshells);
std::vector<double> sum_x(nshells, 0.0);
std::vector<double> sum_y(nshells, 0.0);
std::vector<double> sum_x2(nshells, 0.0);
std::vector<double> sum_y2(nshells, 0.0);
std::vector<double> sum_xy(nshells, 0.0);
std::vector<int32_t> n(nshells, 0);
const Coord astar = lattice.Astar();
const Coord bstar = lattice.Bstar();
const Coord cstar = lattice.Cstar();
for (const auto& [key, ours_list] : ours) {
auto it = xds.find(key);
if (it == xds.end())
continue;
const auto& xds_list = it->second;
for (const auto &i_x: xds_list) {
for (const auto &i_o: ours_list) {
if (std::fabs(i_x.image_number - i_o.image_number) > 30.0)
continue;
int64_t h = i_x.h;
int64_t k = i_x.k;
int64_t l = i_x.l;
Coord recip = astar * h + bstar * k + cstar * l;
double recip_len = std::sqrt(recip.x * recip.x + recip.y * recip.y + recip.z * recip.z);
if (recip_len <= 0.0)
continue;
float d = static_cast<float>(1.0 / recip_len);
auto shell = shells.GetShell(d);
if (!shell)
continue;
int idx = shell.value();
n[idx] += 1;
sum_x[idx] += i_o.I;
sum_y[idx] += i_x.I;
sum_x2[idx] += i_o.I * i_o.I;
sum_y2[idx] += i_x.I * i_x.I;
sum_xy[idx] += i_o.I * i_x.I;
}
}
}
CcHalfByResolutionResult result;
result.cc.resize(nshells, std::numeric_limits<double>::quiet_NaN());
result.pairs = n;
result.shell_mean_one_over_d2 = shells.GetShellMeanOneOverResSq();
for (int i = 0; i < nshells; ++i) {
if (n[i] < 2)
continue;
double denom_x = n[i] * sum_x2[i] - sum_x[i] * sum_x[i];
double denom_y = n[i] * sum_y2[i] - sum_y[i] * sum_y[i];
double denom = std::sqrt(denom_x * denom_y);
if (denom <= 0.0)
continue;
result.cc[i] = (n[i] * sum_xy[i] - sum_x[i] * sum_y[i]) / denom;
}
return result;
}