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funmerge.c
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funmerge.c
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/*
* Copyright (c) 1999-2003 Smithsonian Astrophysical Observatory
*/
#include <funtools.h>
#include <fitsy.h>
#include <wcs.h>
#include <gio.h>
#include <tl.h>
#include <word.h>
/* mode flags for processing */
#define FLAG_FILE 1 /* save file name for each event */
#define FLAG_WCS 2 /* do wcs conversion */
#define FLAG_SAVE 4 /* do wcs conversion and save old event values */
#define FLAG_IWCS 8 /* use image wcs */
#define MAXROW 8192
static int maxrow=MAXROW;
extern char *optarg;
extern int optind;
typedef struct evstruct{
double x, y;
double ox, oy;
short nfile;
} *Ev, EvRec;
typedef struct filestruct{
struct filestruct *next;
char *fname;
Fun fun;
FITSHead header;
struct WorldCoor *wcs;
int type;
int tltyp[2];
double tlmin[2];
double tlmax[2];
double binsiz[2];
int bin[2];
char *bincols[2];
int nfile;
} *MFile, MFileRec;
#ifdef ANSI_FUNC
static void InputFileParams(MFile ifile, int flag)
#else
static void InputFileParams(ifile, flag)
MFile ifile;
int flag;
#endif
{
int i;
int got;
/* get bin offsets for bin columns */
FunInfoGet(ifile->fun, FUN_BINOFFS, ifile->bin, 0);
for(i=0; i<=1; i++){
if( ifile->bin[i] >=0 ){
FunColumnLookup(ifile->fun, NULL, ifile->bin[i], &(ifile->bincols[i]),
&(ifile->tltyp[i]), NULL, NULL, NULL, NULL);
ifile->tlmin[i] =
FunParamGetd(ifile->fun, "TLMIN", ifile->bin[i]+1, 0.0, &got);
ifile->tlmax[i] =
FunParamGetd(ifile->fun, "TLMAX", ifile->bin[i]+1, 0.0, &got);
ifile->binsiz[i] =
FunParamGetd(ifile->fun, "TDBIN", ifile->bin[i]+1, 1.0, &got);
}
}
/* get WCS info if necessary */
if( flag & FLAG_WCS ){
if( flag & FLAG_IWCS )
FunInfoGet(ifile->fun, FUN_WCS, &(ifile->wcs), 0);
else
FunInfoGet(ifile->fun, FUN_WCS0, &(ifile->wcs), 0);
if( !ifile->wcs )
gerror(stderr, "no WCS found in %s\n", ifile->fname);
}
/* fitsy header is used for consistency check oncolumns */
FunInfoGet(ifile->fun, FUN_HEADER, &(ifile->header), 0);
}
#ifdef ANSI_FUNC
static int OpenInputFile(MFile ifile, int flag)
#else
static int OpenInputFile(ifile, flag)
MFile ifile;
int flag;
#endif
{
char *mode;
/* mode depends on file count */
if( ifile->nfile == 1 )
mode = "rc";
else
mode = "r";
/* open input file */
if( !(ifile->fun = FunOpen(ifile->fname, mode, NULL)) ){
gerror(stderr, "can't FunOpen input file (or find extension): %s\n",
ifile->fname);
return 0;
}
/* check data type */
FunInfoGet(ifile->fun, FUN_TYPE, &(ifile->type), 0);
if( (ifile->type != FUN_TABLE) && (ifile->type != FUN_EVENTS) ){
gerror(stderr, "Sorry, only binary tables can be merged (thus far)\n");
return 0;
}
/* get params */
InputFileParams(ifile, flag);
/* return the good news */
return 1;
}
#ifdef ANSI_FUNC
static MFile NewInputFile( MFile head, char *s, int flag)
#else
static MFile NewInputFile(head, s, flag)
MFile head;
char *s;
int flag;
#endif
{
MFile thead, cfile, cur;
/* allocate space */
if( !(cfile = (MFile)xcalloc(1, sizeof(MFileRec))) ){
gerror(stderr, "can't allocate input file record for %s\n", s);
return NULL;
}
/* fill in the blanks */
cfile->fname = xstrdup(s);
/* add to list */
if( head == NULL ){
thead = cfile;
cfile->nfile = 1;
/* we open the first input file, which the the base file for wcs */
if( !OpenInputFile(cfile, flag) ){
gerror(stderr, "can't open input file: %s\n", cfile->fname);
xfree(cfile);
return NULL;
}
}
else{
thead = head;
for(cur=head; cur->next!=NULL; cur=cur->next)
;
cur->next = cfile;
cfile->nfile = cur->nfile+1;
}
/* return head of list */
return thead;
}
#ifdef ANSI_FUNC
static void FreeInputFile(MFile file)
#else
static void FreeInputFile(file)
MFile file;
#endif
{
if( file->fname ) xfree(file->fname);
if( file ) xfree(file);
}
#ifdef ANSI_FUNC
static void
ConvertEvents(MFile ifile, MFile ofile, MFile file1, Ev ebuf, int nrow,
int flag)
#else
static void
ConvertEvents(ifile, ofile, file1, ebuf, nrow, flag)
MFile ifile;
MFile ofile;
MFile file1;
Ev ebuf;
int nrow;
int flag;
#endif
{
int i;
int offscl;
double dval1, dval2;
Ev ev=NULL;
for(i=0; i<nrow; i++){
if( flag & (FLAG_WCS | FLAG_FILE) ){
ev = ebuf+i;
}
/* do wcs translation, if necessary */
if( flag & FLAG_WCS ){
/* save old coord, might have to write it back out */
ev->ox = ev->x;
ev->oy = ev->y;
/* wcs convert all but the first file (which is the base file) */
if( ifile != file1 ){
if( flag & FLAG_IWCS ){
/* convert physical pixels to image */
ev->x = tlp2i(ev->x,
ifile->tlmin[0], ifile->binsiz[0], ifile->tltyp[0]);
ev->y = tlp2i(ev->y,
ifile->tlmin[1], ifile->binsiz[1], ifile->tltyp[1]);
}
/* convert image pixels to ra/dec using wcs */
pix2wcs(ifile->wcs, ev->x, ev->y, &dval1, &dval2);
/* convert ra/dec to image pixels using base wcs */
wcs2pix(file1->wcs, dval1, dval2, &(ev->x), &(ev->y), &offscl);
if( flag & FLAG_IWCS ){
/* convert pixels back to physical in base system */
ev->x = tli2p(ev->x,
file1->tlmin[0], file1->binsiz[0], file1->tltyp[0]);
ev->y = tli2p(ev->y,
file1->tlmin[1], file1->binsiz[1], file1->tltyp[1]);
}
/* if output coords are not float, we need to round before update */
switch( ofile->tltyp[0] ){
case 'D':
case 'E':
break;
default:
if( ev->x >=0 ) ev->x += 0.5;
else ev->x -= 0.5;
break;
}
switch( ofile->tltyp[1] ){
case 'D':
case 'E':
break;
default:
if( ev->y >=0 ) ev->y += 0.5;
else ev->y -= 0.5;
break;
}
}
}
/* save file number, if necessary */
if( flag & FLAG_FILE ){
ev->nfile = ifile->nfile;
}
}
}
#ifdef ANSI_FUNC
static void
usage (char *fname)
#else
static void usage(fname)
char *fname;
#endif
{
fprintf(stderr,
"usage: %s [-w|-x] [-f colname] iname1 iname2 ... oname\n", fname);
fprintf(stderr, "optional switches:\n");
fprintf(stderr, " -f # output a column specifying file from which this event came\n");
fprintf(stderr, " -w # adjust position values using WCS info\n");
fprintf(stderr, " -x # adjust position values using WCS info and save old values\n");
fprintf(stderr, "\n(version: %s)\n", FUN_VERSION);
exit(1);
}
#ifdef ANSI_FUNC
int
main (int argc, char **argv)
#else
int
main(argc, argv)
int argc;
char **argv;
#endif
{
int i;
int c;
int iargs;
int nrow;
int flag;
int put;
char tbuf[SZ_LINE];
char onames[2][SZ_LINE];
char colname[SZ_LINE];
char *s;
char *oname=NULL;
char *mode=NULL;
char *filemode=NULL, *savemode=NULL, *wcsmode=NULL;
double tlmin0, tlmin1, tlmax0, tlmax1;
GIO gio;
Ev ev, ebuf;
EvRec tev;
Fun ofun;
MFile ifiles=NULL, ofile=NULL, cfile=NULL, tfile=NULL;
/* exit on gio errors */
if( !getenv("GERROR") )
setgerror(2);
/* get maxrow,if user-specified */
if( (s=getenv("FUN_MAXROW")) != NULL )
maxrow = atoi(s);
/* we want the args in the same order in which they arrived, and
gnu getopt sometimes changes things without this */
putenv("POSIXLY_CORRECT=true");
/* set colname to something silly. it won't actually be added to the
file unless -c <name> is on the command line, because the mode is
NULL by default */
strcpy(colname, "???");
strcpy(onames[0], "???");
strcpy(onames[1], "???");
/* init flag: assume we will use image wcs */
flag = FLAG_IWCS;
/* process switch arguments */
while ((c = getopt(argc, argv, "f:wxIT")) != -1){
switch(c){
case 'f':
flag |= FLAG_FILE;
filemode = "w";
strcpy(colname, optarg);
break;
case 'w':
flag |= FLAG_WCS;
wcsmode = "rw";
break;
case 'x':
flag |= FLAG_SAVE;
savemode = "w";
flag |= FLAG_WCS;
wcsmode = "rw";
break;
case 'I':
flag |= FLAG_IWCS;
break;
case 'T':
flag &= ~FLAG_IWCS;
break;
default:
break;
}
}
iargs = argc - optind - 1;
/* make sure we have something to do */
if( iargs < 1 ) usage(argv[0]);
/* process input files */
for(i=optind; i<optind+iargs; i++){
if( argv[i][0] != '@' ){
/* allocate new ifile (and open the first file, i.e. the base) */
ifiles = NewInputFile(ifiles, argv[i], flag);
}
/* @ sign means this file contains file names */
else{
if( !(gio = gopen(&argv[i][1], "r")) ){
gerror(stderr, "can't open include file: %s\n", argv[i]);
}
while( ggets(gio, tbuf, SZ_LINE) ){
if( (*tbuf == '\n') || (*tbuf == '#') ) continue;
nowhite(tbuf, tbuf);
/* allocate new ifile (and open the first file, i.e. the base) */
ifiles = NewInputFile(ifiles, tbuf, flag);
}
gclose(gio);
}
}
/* final argument is the output file */
oname = argv[argc-1];
/* open the output FITS image, preparing to copy input params */
if( !(ofun = FunOpen(oname, "w", ifiles->fun)) )
gerror(stderr, "can't FunOpen output file: %s\n", oname);
/* allocate record for the output file */
ofile = (MFile)xcalloc(1, sizeof(MFileRec));
ofile->fun = ofun;
ofile->fname = xstrdup(oname);
InputFileParams(ofile, 0);
/* get old column names from base file, if necessary */
if( savemode ){
for(i=0; i<=1; i++){
if( ifiles->bincols[i] ){
snprintf(onames[i], SZ_LINE-1, "OLD_%s", ifiles->bincols[i]);
}
}
}
/* add merge filename parameters */
for(cfile=ifiles; cfile; cfile=cfile->next){
snprintf(tbuf, SZ_LINE-1, "MIF%d", cfile->nfile);
FunParamPuts(ofun, tbuf, 0, cfile->fname, "merge input file", 1);
}
/* adjust the TLMIN/TLMAX of the base file to accommodate all of the
possible position values from this event file. This effectively
enlargens the size of the output image. */
/* set temp tlmin variables */
tlmin0 = ifiles->tlmin[0];
tlmin1 = ifiles->tlmin[1];
tlmax0 = ifiles->tlmax[0];
tlmax1 = ifiles->tlmax[1];
for(cfile=ifiles->next; cfile; cfile=cfile->next){
if( !OpenInputFile(cfile, flag) ){
gerror(stderr, "can't open input file: %s\n", cfile->fname);
}
/* make sure stdin was not specified for one of these input files */
FunInfoGet(cfile->fun, FUN_GIO, &gio, 0);
if( gio->type & GIO_STREAM ){
gerror(stderr, "a stream can only be used for the first input file\n");
}
/* make sure we have the same column structure as the base file */
if( ifiles->header->table->tfields != cfile->header->table->tfields ){
gerror(stderr,
"%s and %s have a different number of columns (%d, %d)\n",
ifiles->fname, cfile->fname,
ifiles->header->table->tfields, cfile->header->table->tfields);
}
for(i=0; i<cfile->header->table->tfields; i++){
if( strcasecmp(ifiles->header->table->col[i].name,
cfile->header->table->col[i].name) ){
gerror(stderr,
"column names for %s and %s differ in column #%d (%s, %s)\n",
ifiles->fname, cfile->fname,
i+1,
ifiles->header->table->col[i].name,
cfile->header->table->col[i].name);
}
else if( (ifiles->header->table->col[i].type!=
cfile->header->table->col[i].type) ||
(ifiles->header->table->col[i].n !=
cfile->header->table->col[i].n) ){
gerror(stderr,
"data types for %s and %s differ in column '%s' (%d%c, %d%c)\n",
ifiles->fname,
cfile->fname,
ifiles->header->table->col[i].name,
ifiles->header->table->col[i].n,
ifiles->header->table->col[i].type,
cfile->header->table->col[i].n,
cfile->header->table->col[i].type);
}
}
ev = &tev;
/* this is the smallest x,y we can have */
ev->x = cfile->tlmin[0];
ev->y = cfile->tlmin[1];
ConvertEvents(cfile, ofile, ifiles, ev, 1, flag);
if( ev->x < tlmin0 ){
tlmin0 = (int)(ev->x-1);
FunParamPutd(ofun, "TLMIN", cfile->bin[0]+1, tlmin0, 7,
"Min. axis value", 1);
}
if( ev->y < tlmin1 ){
tlmin1 = (int)(ev->y-1);
FunParamPutd(ofun, "TLMIN", cfile->bin[1]+1, tlmin1, 7,
"Min. axis value", 1);
}
/* this is the largest x,y we can have */
ev->x = cfile->tlmax[0];
ev->y = cfile->tlmax[1];
ConvertEvents(cfile, ofile, ifiles, ev, 1, flag);
if( ev->x > tlmax0 ){
tlmax0 = (int)(ev->x+1);
FunParamPutd(ofun, "TLMAX", cfile->bin[0]+1, tlmax0, 7,
"Max. axis value", 1);
}
if( ev->y > tlmax1 ){
tlmax1 = (int)(ev->y+1);
FunParamPutd(ofun, "TLMAX", cfile->bin[1]+1, tlmax1, 7,
"Max. axis value", 1);
}
/* we have to close the file now so as not to run out of descriptors */
FunClose(cfile->fun);
}
/* in some cases, we an avoid transfering anything into user space,
by not calling FunColumnSelect() on the input file, but we must
explicitly make a select call to output the raw data */
if( !filemode && !wcsmode ){
FunColumnSelect(ofun, 0, "merge=update", NULL);
/* flag that we do not convert data on input or output */
mode = "convert=false";
}
/* now we can process the events in all of the input files */
for(cfile=ifiles; cfile; cfile=cfile->next){
/* for all but the base file, re-open input file */
if( cfile != ifiles ){
if( !OpenInputFile(cfile, flag) ){
gerror(stderr, "can't open input file: %s\n", cfile->fname);
}
}
/* select columns for processing */
if( filemode || wcsmode ){
FunColumnSelect(cfile->fun, sizeof(EvRec), "merge=update",
"$X", "D", wcsmode, FUN_OFFSET(Ev, x),
"$Y", "D", wcsmode, FUN_OFFSET(Ev, y),
onames[0], "D", savemode, FUN_OFFSET(Ev, ox),
onames[1], "D", savemode, FUN_OFFSET(Ev, oy),
colname, "I", filemode, FUN_OFFSET(Ev, nfile),
NULL);
}
/* make the new extension the reference handle for the output file */
FunInfoPut(ofile->fun, FUN_IFUN0, &cfile->fun, 0);
/* extract events from this file */
while( (ebuf = FunTableRowGet(cfile->fun, NULL, maxrow, mode, &nrow)) ){
/* translate events, if necessary */
ConvertEvents(cfile, ofile, ifiles, ebuf, nrow, flag);
/* write to output file */
if( (put=FunTableRowPut(ofile->fun, ebuf, nrow, 0, mode)) != nrow ){
gerror(stderr, "expected to write %d events; only wrote %d\n",
nrow, put);
}
xfree(ebuf);
}
/* close all files but the first */
if( cfile != ifiles ) FunClose(cfile->fun);
}
/* close output before input, so end flush is done automatically */
FunClose(ofun);
FreeInputFile(ofile);
/* close base file */
FunClose(ifiles->fun);
/* clean up */
for(cfile=ifiles; cfile;){
tfile = cfile->next;
FreeInputFile(cfile);
cfile = tfile;
}
return(0);
}