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bayesImage.c
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Fri, Nov 29, 04:30

bayesImage.c
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#include<stdio.h>
#include<signal.h>
#include<stdlib.h>
#include<string.h>
#include "dimension.h"
#include "structure.h"
#include "constant.h"
#include "fonction.h"
#include "bayesChires.h"
/******************************************************************************
* Name: bayesImage.c
* Authors: EJ
* Date: 12/09/07
*
* Analyse a bayes.dat file and compute a image.all file for each line.
*
* syntax : bayesImage <.par>
*
* The bayes.dat file in the current directory is used.
* Output : image??.all
*
******************************************************************************/
typedef void (*sighandler_t)(int);
static void signalReset();
static int bc_mode();
static int image_mode();
int optInterrupt;
struct point gsource_global[NGGMAX][NGGMAX]; //(for e_lensing)
void help_msg()
{
fprintf(stderr, "Syntax : bayesImage [OPTION] <.par>\n");
fprintf(stderr, "Available OPTIONS:\n");
fprintf(stderr, " -b : compute images of system barycenter [default]\n");
fprintf(stderr, " -i : compute counter images, image per image\n");
exit(-1);
}
int main( int argc, char** argv )
{
double **array; // contains the bayes.dat data
int nParam; // size of array
long int iVal, nVal;
char fname[128]; // image<ival>.all
int mode; // lens barycenter (0) or lens image per image (1)
char *pch;
int ni, status, i;
// Check the arguments
if( argc < 2 )
help_msg();
mode = 0; // image of barycenter
while( argv[1][0] == '-' )
{
pch = argv[1];
if( pch[1] == 'b' )
mode = 0;
if( pch[1] == 'i' )
mode = 1;
for( i = 1; i < argc-1 ; i++ )
argv[i]=argv[i+1];
argc--;
}
if( strstr( argv[1], ".par" ) == NULL )
help_msg();
// Read the .par file
init_grille( argv[1], 1);
// image per image computation reads runmode/image keyword
if( mode == 1 && M.imafile[0] == '\0' )
{
fprintf(stderr, "ERROR: keyword runmode/image is not defined\n");
exit(-1);
}
// Read catalog of multiple images
readConstraints();
// Initialise the grid
if( G.pol != 0 )
gridp();
else
grid();
// Switch to silent mode
M.verbose = 0;
M.image = 1; // to cheat the e_lensing print out
if( G.nmsgrid != G.nlens )
{
prep_non_param();
}
// Read the bayes.dat file
array = readBayesModels(&nParam, &nVal);
if( array == NULL )
{
fprintf(stderr, "ERROR: bayes.dat file not found\n");
return -1;
}
// Create the ./tmp directory
status = system("mkdir -p images");
// Handle CTRL-C to interrupt the optimisation but not lenstool
signal(SIGINT, signalReset);
optInterrupt = 0;
// Loop over each line
for( iVal = 0; iVal < nVal && !optInterrupt; iVal++ )
{
// Set the lens parameters from <array>
setBayesModel( iVal, nVal, array );
printf( "INFO: Compute the image.all file %ld/%ld [CTRL-C to interrupt]\r", iVal+1, nVal);
fflush(stdout);
if( mode == 0 )
ni = bc_mode();
else
ni = image_mode();
// write image array
sprintf( fname, "images/image%ld.all", iVal );
ecrire_r(0,ni,cimage,fname,2);
}
printf( "\n" );
free( array );
return 0;
}
static int bc_mode()
{
struct point Bs;
struct point Ps[NIMAX];
int i, j;
int ni;
for( i = 0 ; i < I.n_mult ; i++ )
{
S.ns = i;
// arclet --> source list
e_unlens(I.mult[i],multi[i], &S.ns, source);
for( j = 0; j < I.mult[i]; j++ )
{
multi[i][j].grad.x=multi[i][j].grad.y=0.;
multi[i][j].grad2.a=multi[i][j].grad2.c=0.;
}
o_dpl(I.mult[i], multi[i], Ps, NULL);
/*Find the barycenter position of the computed sources*/
if (I.forme == 4 || I.forme == 6)
Bs=weight_baryc(Ps,multi[i],I.mult[i] , i); //i==n_familly
else
Bs=bcentlist(Ps,I.mult[i]); /* barycentre */
source[i].C = Bs;
source[i].n[strlen(source[i].n)-1] = 0;
}
S.ns = I.n_mult;
// source list --> image array
e_lensing(source,image);
// Count the number of images
ni = 0;
for( i = 0 ; i < S.ns ; i++ )
for( j = 0 ; j < NIMAX && strcmp(image[i][j].n,"") ; j++ )
cimage[ni++]=image[i][j];
return(ni);
}
static int image_mode()
{
long int ni, ncistart;
s_source();
e_lensing(source, image);
classer(image, cimage, &ni, &ncistart);
return(ni);
}
static void signalReset()
{
signal(SIGINT, SIG_DFL);
optInterrupt = 1;
printf( "\nINFO: Optimisation interrupted by CTRL-C\r");
}

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