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/*
* gradient_panel_x.c
*
* Check gradients for prediction refinement
*
* Copyright © 2012-2023 Deutsches Elektronen-Synchrotron DESY,
* a research centre of the Helmholtz Association.
*
* Authors:
* 2012-2023 Thomas White <taw@physics.org>
*
* This file is part of CrystFEL.
*
* CrystFEL is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* CrystFEL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with CrystFEL. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <getopt.h>
#include <image.h>
#include <geometry.h>
#include <predict-refine.h>
#include "gradient_check_utils.h"
int main(int argc, char *argv[])
{
struct image image;
struct reflpeak *rps;
int n_refls;
double **before;
double **after;
int i;
int n_wrong_r = 0;
int n_wrong_fs = 0;
int n_wrong_ss = 0;
int n_wrong_obsr = 0;
int fail = 0;
double step;
gsl_matrix **panel_matrices;
int didsomething = 0;
const double cx = 0.03; /* Detector is a 7.5 cm side length square */
const double cy = 0.02;
const double cz = 0.01;
rps = make_test_image(&n_refls, &image);
panel_matrices = make_panel_minvs(image.detgeom);
before = make_dev_list(rps, n_refls, image.detgeom);
#ifdef TRANSLATE_PANEL
struct detgeom_panel *p = &image.detgeom->panels[0];
step = 0.01e-3; /* metres */
image.detgeom->panels[0].THING_TO_MOVE += step/p->pixel_pitch;
didsomething = 1;
#endif
#ifdef ROTATE_PANEL_X
struct detgeom_panel *p = &image.detgeom->panels[0];
step = deg2rad(0.01);
rotate2d(&p->cny, &p->cnz, cy/p->pixel_pitch, cz/p->pixel_pitch, step);
rotate2d(&p->fsy, &p->fsz, 0, 0, step);
rotate2d(&p->ssy, &p->ssz, 0, 0, step);
didsomething = 1;
#endif
#ifdef ROTATE_PANEL_Y
struct detgeom_panel *p = &image.detgeom->panels[0];
step = deg2rad(0.01);
rotate2d(&p->cnz, &p->cnx, cz/p->pixel_pitch, cx/p->pixel_pitch, step);
rotate2d(&p->fsz, &p->fsx, 0, 0, step);
rotate2d(&p->ssz, &p->ssx, 0, 0, step);
didsomething = 1;
#endif
#ifdef ROTATE_PANEL_Z
struct detgeom_panel *p = &image.detgeom->panels[0];
step = deg2rad(0.01);
rotate2d(&p->cnx, &p->cny, cx/p->pixel_pitch, cy/p->pixel_pitch, step);
rotate2d(&p->fsx, &p->fsy, 0, 0, step);
rotate2d(&p->ssx, &p->ssy, 0, 0, step);
didsomething = 1;
#endif
#ifdef CHANGE_CELL
double asx, asy, asz, bsx, bsy, bsz, csx, csy, csz;
UnitCell *cell = crystal_get_cell(image.crystals[0].cr);
step = 0.5e5;
cell_get_reciprocal(cell, &asx, &asy, &asz,
&bsx, &bsy, &bsz,
&csx, &csy, &csz);
THING_TO_MOVE += step;
cell_set_reciprocal(cell, asx, asy, asz,
bsx, bsy, bsz,
csx, csy, csz);
didsomething = 1;
#endif
if ( !didsomething ) {
fprintf(stderr, "Nothing changed. Check the build system.\n");
return 1;
}
update_predictions(image.crystals[0].refls, image.crystals[0].cr, &image);
after = make_dev_list(rps, n_refls, image.detgeom);
for ( i=0; i<n_refls; i++ ) {
float calc[3];
double obs[3];
calc[0] = r_gradient(TEST_GPARAM, rps[i].refl,
crystal_get_cell(image.crystals[0].cr),
image.lambda);
fs_ss_gradient(TEST_GPARAM, rps[i].refl,
crystal_get_cell(image.crystals[0].cr),
&image.detgeom->panels[rps[i].peak->pn],
panel_matrices[rps[i].peak->pn], cx, cy, cz,
&calc[1], &calc[2]);
obs[0] = (after[0][i] - before[0][i]) / step;
obs[1] = (after[1][i] - before[1][i]) / step;
obs[2] = (after[2][i] - before[2][i]) / step;
#ifdef TRANSLATE_PANEL
if ( fabs(calc[0]) > 1e-12 ) n_wrong_r++; /* Should be zero */
if ( fabs(obs[0]) > 1e-12 ) n_wrong_obsr++; /* Should also be zero */
if ( fabs(obs[1] - calc[1]) > 10.0 ) n_wrong_fs++;
if ( fabs(obs[2] - calc[2]) > 10.0 ) n_wrong_ss++;
#endif
#if defined(ROTATE_PANEL_X) || defined(ROTATE_PANEL_Y) || defined(ROTATE_PANEL_Z)
if ( fabs(calc[0]) > 1e-12 ) n_wrong_r++; /* Should be zero */
if ( fabs(obs[0]) > 1e-12 ) n_wrong_obsr++; /* Should also be zero */
if ( fabs(obs[1] - calc[1]) > 1.0 ) n_wrong_fs++; /* Units are pixels/rad */
if ( fabs(obs[2] - calc[2]) > 1.0 ) n_wrong_ss++; /* (numbers are big) */
#endif
#ifdef CHANGE_CELL
if ( fabs(obs[0] - calc[0]) > 1e-2 ) n_wrong_r++;
if ( fabs(obs[1] - calc[1]) > 1e-8 ) n_wrong_fs++;
if ( fabs(obs[2] - calc[2]) > 1e-8 ) n_wrong_ss++;
#endif
}
if ( n_wrong_r > 0 ) {
fprintf(stderr, "%i out of %i R gradients were wrong.\n",
n_wrong_r, n_refls);
fail = 1;
}
if ( n_wrong_fs > 0 ) {
fprintf(stderr, "%i out of %i fs gradients were wrong.\n",
n_wrong_fs, n_refls);
fail = 1;
}
if ( n_wrong_ss > 0 ) {
fprintf(stderr, "%i out of %i ss gradients were wrong.\n",
n_wrong_ss, n_refls);
fail = 1;
}
if ( n_wrong_obsr > 0 ) {
fprintf(stderr, "%i out of %i observed R gradients were not zero as expected\n",
n_wrong_obsr, n_refls);
fail = 1;
}
return fail;
}
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