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/*
* integration_check.c
*
* Check reflection integration
*
* Copyright © 2013-2020 Deutsches Elektronen-Synchrotron DESY,
* a research centre of the Helmholtz Association.
*
* Authors:
* 2013-2020 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 <image.h>
#include <utils.h>
#include <cell.h>
#include <cell-utils.h>
#include <integration.h>
#include "histogram.h"
int main(int argc, char *argv[])
{
struct image image;
int fs, ss;
FILE *fh;
unsigned long int seed;
int fail = 0;
const int w = 128;
const int h = 128;
RefList *list;
Reflection *refl;
UnitCell *cell;
struct intcontext *ic;
const int ir_inn = 2;
const int ir_mid = 4;
const int ir_out = 6;
int i;
Histogram *hi;
double esd_sum = 0.0;
gsl_rng *rng;
rng = gsl_rng_alloc(gsl_rng_mt19937);
fh = fopen("/dev/urandom", "r");
if ( fread(&seed, sizeof(seed), 1, fh) == 1 ) {
gsl_rng_set(rng, seed);
} else {
ERROR("Failed to seed RNG\n");
}
fclose(fh);
image.lambda = ph_eV_to_lambda(9000.0);
image.detgeom = calloc(1, sizeof(struct detgeom));
image.detgeom->n_panels = 1;
image.detgeom->panels = calloc(1, sizeof(struct detgeom_panel));
image.detgeom->panels[0].w = w;
image.detgeom->panels[0].h = h;
image.detgeom->panels[0].fsx = 1.0;
image.detgeom->panels[0].fsy = 0.0;
image.detgeom->panels[0].ssx = 0.0;
image.detgeom->panels[0].ssy = 1.0;
image.detgeom->panels[0].cnx = -w/2;
image.detgeom->panels[0].cny = -h/2;
image.detgeom->panels[0].cnz = 60.0e-3 / 100e-6;
image.detgeom->panels[0].pixel_pitch = 100e-6; /* 10 px per mm */
image.detgeom->panels[0].adu_per_photon = 10;
image.detgeom->panels[0].max_adu = +INFINITY; /* No cutoff */
image.dp = malloc(sizeof(float *));
image.dp[0] = malloc(w*h*sizeof(float));
memset(image.dp[0], 0, w*h*sizeof(float));
image.bad = malloc(sizeof(int *));
image.bad[0] = malloc(w*h*sizeof(int));
memset(image.bad[0], 0, w*h*sizeof(int));
image.sat = NULL;
image.n_crystals = 0;
image.crystals = NULL;
hi = histogram_init();
for ( i=0; i<300; i++ ) {
for ( fs=0; fs<w; fs++ ) {
for ( ss=0; ss<h; ss++ ) {
image.dp[0][fs+w*ss] = 10.0*poisson_noise(rng, 40);
if ( (fs-64)*(fs-64) + (ss-64)*(ss-64) > 2 ) continue;
//image.dp[0][fs+w*ss] += 10.0*poisson_noise(10);
}
}
list = reflist_new();
refl = add_refl(list, 0, 0, 0);
set_detector_pos(refl, 64, 64);
set_panel_number(refl, 0);
cell = cell_new();
cell_set_lattice_type(cell, L_CUBIC);
cell_set_centering(cell, 'P');
cell_set_parameters(cell, 800.0e-10, 800.0e-10, 800.0e-10,
deg2rad(90.0), deg2rad(90.0), deg2rad(90.0));
cell = cell_rotate(cell, random_quaternion(rng));
ic = intcontext_new(&image, cell, INTEGRATION_RINGS,
ir_inn, ir_mid, ir_out, NULL);
if ( ic == NULL ) {
ERROR("Failed to initialise integration.\n");
return 1;
}
integrate_rings_once(refl, ic, 0);
cell_free(cell);
histogram_add_value(hi, get_intensity(refl));
esd_sum += get_esd_intensity(refl);
}
printf("Mean calculated sigma(I) = %.2f\n", esd_sum / 300);
histogram_show(hi);
histogram_free(hi);
detgeom_free(image.detgeom);
free(image.dp[0]);
free(image.dp);
if ( fail ) return 1;
return 0;
}
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