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make_master_turbulence_screen.c
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/**
* @file make_master_turbulence_screen.c
* @brief Create master turbulence screen
*
*
*/
#include <math.h>
#include "CommandLineInterface/CLIcore.h"
// required for create_2Dimage_ID
#include "COREMOD_memory/COREMOD_memory.h"
#include "COREMOD_arith/COREMOD_arith.h"
#include "fft/fft.h"
#include "image_gen/image_gen.h"
// ==========================================
// Forward declaration(s)
// ==========================================
errno_t
AtmosphericTurbulence_make_master_turbulence_screen(const char *ID_name1,
const char *ID_name2,
uint32_t size,
float outerscale,
float innerscale,
long WFprecision);
// ==========================================
// Command line interface wrapper function(s)
// ==========================================
static errno_t AtmosphericTurbulence_make_master_turbulence_screen__cli()
{
if(0 + CLI_checkarg(1, CLIARG_STR_NOT_IMG) +
CLI_checkarg(2, CLIARG_STR_NOT_IMG) + CLI_checkarg(3, CLIARG_INT64) +
CLI_checkarg(4, CLIARG_FLOAT64) + CLI_checkarg(5, CLIARG_FLOAT64) +
CLI_checkarg(6, CLIARG_INT64) ==
0)
{
// If arguments meet requirements, command is executed
//
AtmosphericTurbulence_make_master_turbulence_screen(
data.cmdargtoken[1].val.string,
data.cmdargtoken[2].val.string,
data.cmdargtoken[3].val.numl,
data.cmdargtoken[4].val.numf,
data.cmdargtoken[5].val.numf,
data.cmdargtoken[6].val.numl);
return CLICMD_SUCCESS;
}
else
{
// If arguments do not pass test, errror code returned
return CLICMD_INVALID_ARG;
}
}
// ==========================================
// Register CLI command(s)
// ==========================================
errno_t AtmosphericTurbulence_make_master_turbulence_screen_addCLIcmd()
{
RegisterCLIcommand("mkturbscreen",
__FILE__,
AtmosphericTurbulence_make_master_turbulence_screen__cli,
"creates master turbulence screens",
"<screen1> <screen2> <size> <outerscale[float]> "
"<innerscale[float]> <precision[long]>",
"mkturbscreen scr1 scr2 512 200.0 10 1",
"AtmosphericTurbulence_make_master_turbulence_screen("
"const char *ID_name1, const char "
"*ID_name2, long size, float outerscale, float "
"innerscale, long WFprecision)");
return RETURN_SUCCESS;
}
//
// innerscale and outerscale in pixel
// von Karman spectrum
//
errno_t
AtmosphericTurbulence_make_master_turbulence_screen(const char *ID_name1,
const char *ID_name2,
uint32_t size,
float outerscale,
float innerscale,
long WFprecision)
{
imageID ID;
double value, C1, C2;
long cnt;
long Dlim = 3;
imageID IDv;
//int OUTERSCALE_MODE = 1; // 1 if outer scale
double OUTERscale_f0;
double INNERscale_f0;
double dx, dy, r;
double rlim = 0.0;
int RLIMMODE = 0;
double iscoeff;
printf("Make turbulence screen, precision = %ld\n", WFprecision);
fflush(stdout);
/* IDv = variable_ID("OUTERSCALE");
if(IDv!=-1)
{
outerscale = data.variable[IDv].value.f;
printf("Outer scale = %f pix\n", outerscale);
}
*/
IDv = variable_ID("RLIM");
if(IDv != -1)
{
RLIMMODE = 1;
rlim = data.variable[IDv].value.f;
printf("R limit = %f pix\n", rlim);
}
OUTERscale_f0 = 1.0 * size / outerscale; // [1/pix] in F plane
INNERscale_f0 = (5.92 / (2.0 * M_PI)) * size / innerscale;
if(WFprecision == 0)
{
make_rnd("tmppha", size, size, "");
}
else
{
make_rnd_double("tmppha", size, size, "");
}
arith_image_cstmult("tmppha", 2.0 * PI, "tmppha1");
delete_image_ID("tmppha", DELETE_IMAGE_ERRMODE_WARNING);
// make_dist("tmpd",size,size,size/2,size/2);
if(WFprecision == 0)
{
create_2Dimage_ID("tmpd", size, size, &ID);
}
else
{
create_2Dimage_ID_double("tmpd", size, size, &ID);
}
if(WFprecision == 0)
{
for(uint32_t ii = 0; ii < size; ii++)
for(uint32_t jj = 0; jj < size; jj++)
{
dx = 1.0 * ii - size / 2;
dy = 1.0 * jj - size / 2;
if(RLIMMODE == 1)
{
r = sqrt(dx * dx + dy * dy);
if(r < rlim)
{
data.image[ID].array.F[jj * size + ii] = 0.0;
}
else
{
data.image[ID].array.F[jj * size + ii] = sqrt(
dx * dx + dy * dy + OUTERscale_f0 * OUTERscale_f0);
}
}
else
{
data.image[ID].array.F[jj * size + ii] =
sqrt(dx * dx + dy * dy + OUTERscale_f0 * OUTERscale_f0);
}
}
}
else
{
for(uint32_t ii = 0; ii < size; ii++)
for(uint32_t jj = 0; jj < size; jj++)
{
dx = 1.0 * ii - size / 2;
dy = 1.0 * jj - size / 2;
if(RLIMMODE == 1)
{
r = sqrt(dx * dx + dy * dy);
if(r < rlim)
{
data.image[ID].array.D[jj * size + ii] = 0.0;
}
else
{
data.image[ID].array.D[jj * size + ii] = sqrt(
dx * dx + dy * dy + OUTERscale_f0 * OUTERscale_f0);
}
}
else
{
data.image[ID].array.D[jj * size + ii] =
sqrt(dx * dx + dy * dy + OUTERscale_f0 * OUTERscale_f0);
}
}
}
if(WFprecision == 0)
{
make_rnd("tmpg", size, size, "-gauss");
}
else
{
make_rnd_double("tmpg", size, size, "-gauss");
}
ID = image_ID("tmpg");
if(WFprecision == 0)
{
for(uint32_t ii = 0; ii < size; ii++)
for(uint32_t jj = 0; jj < size; jj++)
{
dx = 1.0 * ii - size / 2;
dy = 1.0 * jj - size / 2;
iscoeff =
exp(-(dx * dx + dy * dy) / INNERscale_f0 / INNERscale_f0);
data.image[ID].array.F[jj * size + ii] *=
sqrt(iscoeff); // power -> amplitude : sqrt
}
}
else
{
for(uint32_t ii = 0; ii < size; ii++)
for(uint32_t jj = 0; jj < size; jj++)
{
dx = 1.0 * ii - size / 2;
dy = 1.0 * jj - size / 2;
iscoeff =
exp(-(dx * dx + dy * dy) / INNERscale_f0 / INNERscale_f0);
data.image[ID].array.D[jj * size + ii] *=
sqrt(iscoeff); // power -> amplitude : sqrt
}
}
arith_image_cstpow("tmpd", 11.0 / 6.0, "tmpd1");
delete_image_ID("tmpd", DELETE_IMAGE_ERRMODE_WARNING);
arith_image_div("tmpg", "tmpd1", "tmpamp");
delete_image_ID("tmpg", DELETE_IMAGE_ERRMODE_WARNING);
delete_image_ID("tmpd1", DELETE_IMAGE_ERRMODE_WARNING);
arith_set_pixel("tmpamp", 0.0, size / 2, size / 2);
mk_complex_from_amph("tmpamp", "tmppha1", "tmpc", 0);
delete_image_ID("tmpamp", DELETE_IMAGE_ERRMODE_WARNING);
delete_image_ID("tmppha1", DELETE_IMAGE_ERRMODE_WARNING);
permut("tmpc");
do2dfft("tmpc", "tmpcf");
delete_image_ID("tmpc", DELETE_IMAGE_ERRMODE_WARNING);
mk_reim_from_complex("tmpcf", "tmpo1", "tmpo2", 0);
delete_image_ID("tmpcf", DELETE_IMAGE_ERRMODE_WARNING);
/* compute the scaling factor in the power law of the structure function */
fft_structure_function("tmpo1", "strf");
ID = image_ID("strf");
value = 0.0;
cnt = 0;
if(data.image[ID].md[0].datatype == _DATATYPE_FLOAT)
{
for(uint32_t ii = 1; ii < Dlim; ii++)
for(uint32_t jj = 1; jj < Dlim; jj++)
{
value += log10(data.image[ID].array.F[jj * size + ii]) -
5.0 / 3.0 * log10(sqrt(ii * ii + jj * jj));
cnt++;
}
}
else
{
for(uint32_t ii = 1; ii < Dlim; ii++)
for(uint32_t jj = 1; jj < Dlim; jj++)
{
value += log10(data.image[ID].array.D[jj * size + ii]) -
5.0 / 3.0 * log10(sqrt(ii * ii + jj * jj));
cnt++;
}
}
// save_fl_fits("strf","strf.fits");
delete_image_ID("strf", DELETE_IMAGE_ERRMODE_WARNING);
C1 = pow(10.0, value / cnt);
fft_structure_function("tmpo2", "strf");
ID = image_ID("strf");
value = 0.0;
cnt = 0;
if(data.image[ID].md[0].datatype == _DATATYPE_FLOAT)
{
for(uint32_t ii = 1; ii < Dlim; ii++)
for(uint32_t jj = 1; jj < Dlim; jj++)
{
value += log10(data.image[ID].array.F[jj * size + ii]) -
5.0 / 3.0 * log10(sqrt(ii * ii + jj * jj));
cnt++;
}
}
else
{
for(uint32_t ii = 1; ii < Dlim; ii++)
for(uint32_t jj = 1; jj < Dlim; jj++)
{
value += log10(data.image[ID].array.D[jj * size + ii]) -
5.0 / 3.0 * log10(sqrt(ii * ii + jj * jj));
cnt++;
}
}
delete_image_ID("strf", DELETE_IMAGE_ERRMODE_WARNING);
C2 = pow(10.0, value / cnt);
printf("C1, C2 = %f %f\n", C1, C2);
arith_image_cstmult("tmpo1", 1.0 / sqrt(C1), ID_name1);
arith_image_cstmult("tmpo2", 1.0 / sqrt(C2), ID_name2);
delete_image_ID("tmpo1", DELETE_IMAGE_ERRMODE_WARNING);
delete_image_ID("tmpo2", DELETE_IMAGE_ERRMODE_WARNING);
return RETURN_SUCCESS;
}