void fts2_getmirrorpositions(smfData* data, double* positions, int* size, int* status)
{
if(*status != SAI__OK) { return; }
char ftsMode[SZFITSTR];
size_t count = 0; /* Size */
HDSLoc* hdsLoc = NULL; /* Pointer to HDS location */
HDSLoc* hdsLocPos = NULL; /* Pointer to mirror positions */
smf_fits_getS(data->hdr, "FTS_MODE", ftsMode, sizeof(ftsMode), status);
if(strncmp(ftsMode, "FSCAN", 5) == 0 ) {
hdsLoc = smf_get_xloc(data, "JCMTSTATE", "EXT", "READ", 0, 0, status);
datFind(hdsLoc, "FTS_POS", &hdsLocPos, status);
datSize(hdsLocPos, &count, status);
datGetVD(hdsLocPos, count, positions, &count, status);
*size = (int) count;
} else if(strncmp(ftsMode, "STEPINT", 7) == 0 ) {
*status = SAI__ERROR;
errRep(FUNC_NAME, "STEPINT mode is NOT supported!", status);
} else {
*status = SAI__ERROR;
errRep(FUNC_NAME, "Unknown Scan Mode is found!", status);
}
if(hdsLoc) { datAnnul(&hdsLoc, status); }
if(hdsLocPos) { datAnnul(&hdsLocPos, status); }
}
void smf_calc_mapcoord( ThrWorkForce *wf, AstKeyMap *config, smfData *data,
AstFrameSet *outfset, int moving, int *lbnd_out,
int *ubnd_out, fts2Port fts_port, int flags,
int *status ) {
/* Local Variables */
AstSkyFrame *abskyfrm = NULL;/* Output SkyFrame (always absolute) */
AstMapping *bolo2map=NULL; /* Combined mapping bolo->map coordinates */
int bndndf=NDF__NOID; /* NDF identifier for map bounds */
void *data_pntr[1]; /* Array of pointers to mapped arrays in ndf */
int *data_index; /* Mapped DATA_ARRAY part of NDF */
int docalc=1; /* If set calculate the LUT */
int doextension=0; /* Try to write LUT to MAPCOORD extension */
smfFile *file=NULL; /* smfFile pointer */
AstObject *fstemp = NULL; /* AstObject version of outfset */
int ii; /* loop counter */
int indf_lat = NDF__NOID; /* Identifier for NDF to receive lat values */
int indf_lon = NDF__NOID; /* Identifier for NDF to receive lon values */
smfCalcMapcoordData *job_data=NULL; /* Array of job */
int lbnd[1]; /* Pixel bounds for 1d pointing array */
int lbnd_old[2]; /* Pixel bounds for existing LUT */
int lbnd_temp[1]; /* Bounds for bounds NDF component */
int lutndf=NDF__NOID; /* NDF identifier for coordinates */
AstMapping *map2sky_old=NULL;/* Existing mapping map->celestial coord. */
HDSLoc *mapcoordloc=NULL; /* HDS locator to the MAPCOORD extension */
int nw; /* Number of worker threads */
AstFrameSet *oldfset=NULL; /* Pointer to existing WCS info */
AstSkyFrame *oskyfrm = NULL; /* SkyFrame from the output WCS Frameset */
smfCalcMapcoordData *pdata=NULL; /* Pointer to job data */
double *lat_ptr = NULL; /* Pointer to array to receive lat values */
double *lon_ptr = NULL; /* Pointer to array to receive lon values */
int ubnd[1]; /* Pixel bounds for 1d pointing array */
int ubnd_old[2]; /* Pixel bounds for existing LUT */
int ubnd_temp[1]; /* Bounds for bounds NDF component */
int *lut = NULL; /* The lookup table */
dim_t nbolo=0; /* Number of bolometers */
dim_t ntslice=0; /* Number of time slices */
int nmap; /* Number of mapped elements */
AstMapping *sky2map=NULL; /* Mapping celestial->map coordinates */
size_t step; /* step size for dividing up work */
AstCmpMap *testcmpmap=NULL; /* Combined forward/inverse mapping */
AstMapping *testsimpmap=NULL;/* Simplified testcmpmap */
double *theta = NULL; /* Scan direction at each time slice */
int tstep; /* Time slices between full Mapping calculations */
int exportlonlat; /* Dump longitude and latitude values? */
/* Main routine */
if (*status != SAI__OK) return;
/* How many threads do we get to play with */
nw = wf ? wf->nworker : 1;
/* Initialize bounds to avoid compiler warnings */
lbnd_old[0] = 0;
lbnd_old[1] = 0;
ubnd_old[0] = 0;
ubnd_old[1] = 0;
/* Check for pre-existing LUT and de-allocate it. This will only waste
time if the MAPCOORD extension is found to be valid and it has
to be re-loaded from disk. */
smf_close_mapcoord( data, status );
/* Assert ICD data order */
smf_dataOrder( data, 1, status );
/* Get the data dimensions */
smf_get_dims( data, NULL, NULL, &nbolo, &ntslice, NULL, NULL, NULL, status );
/* If SMF__NOCREATE_FILE is not set, and file associated with an NDF,
map a new MAPCOORD extension (or verify an existing one) */
if( !(flags & SMF__NOCREATE_FILE) && data->file ) {
doextension = 1;
} else {
doextension = 0;
docalc = 1;
}
/* Create / check for existing MAPCOORD extension */
if( doextension ) {
file = data->file;
/* Check type of file before proceeding */
if( file->isSc2store ) {
*status = SAI__ERROR;
errRep(FUNC_NAME,
"File was opened by sc2store library (raw data?)",
status);
}
if( !file->isTstream ) {
*status = SAI__ERROR;
errRep(FUNC_NAME, "File does not contain time stream data",status);
}
/* Get HDS locator to the MAPCOORD extension */
mapcoordloc = smf_get_xloc( data, "MAPCOORD", "MAP_PROJECTION", "UPDATE",
0, 0, status );
/* Obtain NDF identifier/placeholder for LUT in MAPCOORD extension*/
lbnd[0] = 0;
ubnd[0] = nbolo*ntslice-1;
lutndf = smf_get_ndfid( mapcoordloc, "LUT", "UPDATE", "UNKNOWN",
"_INTEGER", 1, lbnd, ubnd, status );
if( *status == SAI__OK ) {
/* store the NDF identifier */
file->mapcoordid = lutndf;
/* Create sky to output grid mapping using the base coordinates to
get the coordinates of the tangent point if it hasn't been done
yet. */
sky2map = astGetMapping( outfset, AST__CURRENT, AST__BASE );
}
/* Before mapping the LUT, first check for existing WCS information
and LBND/UBND for the output map. If they are already correct don't
bother re-calculating the LUT! */
if( *status == SAI__OK ) {
/* Try reading in the WCS information */
kpg1Wread( mapcoordloc, "WCS", &fstemp, status );
oldfset = (AstFrameSet*)fstemp;
if( *status == SAI__OK ) {
/* Check that the old and new mappings are the same by
checking that combining one with the inverse of the other
reduces to a UnitMap. */
map2sky_old = astGetMapping( oldfset, AST__BASE, AST__CURRENT );
testcmpmap = astCmpMap( map2sky_old, sky2map, 1, " " );
testsimpmap = astSimplify( testcmpmap );
if( astIsAUnitMap( testsimpmap ) ) {
/* The mappings are the same, now just check the pixel
bounds in the output map */
lbnd_temp[0] = 1;
ubnd_temp[0] = 2;
bndndf = smf_get_ndfid( mapcoordloc, "LBND", "READ", "UNKNOWN",
"_INTEGER", 1, lbnd_temp, ubnd_temp,
status );
if( *status == SAI__OK ) {
ndfMap( bndndf, "DATA", "_INTEGER", "READ", data_pntr, &nmap,
status );
data_index = data_pntr[0];
if( *status == SAI__OK ) {
lbnd_old[0] = data_index[0];
lbnd_old[1] = data_index[1];
}
ndfAnnul( &bndndf, status );
}
bndndf = smf_get_ndfid( mapcoordloc, "UBND", "READ", "UNKNOWN",
"_INTEGER", 1, lbnd_temp, ubnd_temp,
status );
if( *status == SAI__OK ) {
ndfMap( bndndf, "DATA", "_INTEGER", "READ", data_pntr, &nmap,
status );
data_index = data_pntr[0];
if( *status == SAI__OK ) {
ubnd_old[0] = data_index[0];
ubnd_old[1] = data_index[1];
}
ndfAnnul( &bndndf, status );
}
if( *status == SAI__OK ) {
/* If we get this far finally do the bounds check! */
if( (lbnd_old[0] == lbnd_out[0]) &&
(lbnd_old[1] == lbnd_out[1]) &&
(ubnd_old[0] == ubnd_out[0]) &&
(ubnd_old[1] == ubnd_out[1]) ) {
docalc = 0; /* We don't have to re-calculate the LUT */
msgOutif(MSG__VERB," ",FUNC_NAME ": Existing LUT OK",
status);
}
}
}
/* Bad status / AST errors at this point due to problems with
MAPCOORD. Annul and continue calculating new MAPCOORD extension. */
astClearStatus;
errAnnul(status);
} else {
/* Bad status due to non-existence of MAPCOORD. Annul and continue */
errAnnul(status);
}
}
}
/* If we need to calculate the LUT do it here */
if( docalc && (*status == SAI__OK) ) {
msgOutif(MSG__VERB," ", FUNC_NAME ": Calculate new LUT",
status);
/* Get the increment in time slices between full Mapping calculations.
The Mapping for intermediate time slices will be approximated. */
dim_t dimval;
smf_get_nsamp( config, "TSTEP", data, &dimval, status );
tstep = dimval;
/* Get space for the LUT */
if( doextension ) {
/* Map the LUT array */
ndfMap( lutndf, "DATA", "_INTEGER", "WRITE", data_pntr, &nmap,
status );
data_index = data_pntr[0];
if( *status == SAI__OK ) {
lut = data_index;
} else {
errRep( FUNC_NAME, "Unable to map LUT in MAPCOORD extension",
status);
}
} else {
/* alloc the LUT and THETA arrays */
lut = astMalloc( (nbolo*ntslice)*sizeof(*(data->lut)) );
theta = astMalloc( ntslice*sizeof(*(data->theta)) );
}
/* Retrieve the sky2map mapping from the output frameset (actually
map2sky) */
oskyfrm = astGetFrame( outfset, AST__CURRENT );
sky2map = astGetMapping( outfset, AST__BASE, AST__CURRENT );
/* If the longitude and latitude is being dumped, create new NDFs to
hold them, and map them. */
if( config ) {
astMapGet0I( config, "EXPORTLONLAT", &exportlonlat );
if( exportlonlat ) {
lon_ptr = smf1_calc_mapcoord1( data, nbolo, ntslice, oskyfrm,
&indf_lon, 1, status );
lat_ptr = smf1_calc_mapcoord1( data, nbolo, ntslice, oskyfrm,
&indf_lat, 2, status );
}
}
/* Invert the mapping to get Output SKY to output map coordinates */
astInvert( sky2map );
/* Create a SkyFrame in absolute coordinates */
abskyfrm = astCopy( oskyfrm );
astClear( abskyfrm, "SkyRefIs" );
astClear( abskyfrm, "SkyRef(1)" );
astClear( abskyfrm, "SkyRef(2)" );
if( *status == SAI__OK ) {
/* --- Begin parellelized portion ------------------------------------ */
/* Start a new job context. Each call to thrWait within this
context will wait until all jobs created within the context have
completed. Jobs created in higher contexts are ignored by thrWait. */
thrBeginJobContext( wf, status );
/* Allocate job data for threads */
job_data = astCalloc( nw, sizeof(*job_data) );
if( *status == SAI__OK ) {
/* Set up job data, and start calculating pointing for blocks of
time slices in different threads */
if( nw > (int) ntslice ) {
step = 1;
} else {
step = ntslice/nw;
}
for( ii=0; (*status==SAI__OK)&&(ii<nw); ii++ ) {
pdata = job_data + ii;
/* Blocks of time slices */
pdata->t1 = ii*step;
pdata->t2 = (ii+1)*step-1;
/* Ensure that the last thread picks up any left-over tslices */
if( (ii==(nw-1)) && (pdata->t1<(ntslice-1)) ) {
pdata->t2=ntslice-1;
}
pdata->ijob = -1;
pdata->lut = lut;
pdata->theta = theta;
pdata->lbnd_out = lbnd_out;
pdata->moving = moving;
pdata->ubnd_out = ubnd_out;
pdata->tstep = tstep;
pdata->lat_ptr = lat_ptr;
pdata->lon_ptr = lon_ptr;
pdata->fts_port = fts_port;
/* Make deep copies of AST objects and unlock them so that each
thread can then lock them for their own exclusive use */
pdata->abskyfrm = astCopy( abskyfrm );
astUnlock( pdata->abskyfrm, 1 );
pdata->sky2map = astCopy( sky2map );
astUnlock( pdata->sky2map, 1 );
/* Similarly, make a copy of the smfData, including only the header
information which each thread will need in order to make calls to
smf_rebin_totmap */
pdata->data = smf_deepcopy_smfData( data, 0, SMF__NOCREATE_FILE |
SMF__NOCREATE_DA |
SMF__NOCREATE_FTS |
SMF__NOCREATE_DATA |
SMF__NOCREATE_VARIANCE |
SMF__NOCREATE_QUALITY, 0, 0,
status );
smf_lock_data( pdata->data, 0, status );
}
for( ii=0; ii<nw; ii++ ) {
/* Submit the job */
pdata = job_data + ii;
pdata->ijob = thrAddJob( wf, THR__REPORT_JOB, pdata,
smfCalcMapcoordPar, 0, NULL, status );
}
/* Wait until all of the jobs submitted within the current job
context have completed */
thrWait( wf, status );
}
/* End the current job context. */
thrEndJobContext( wf, status );
/* --- End parellelized portion -------------------------------------- */
/* Set the lut pointer in data to the buffer */
data->lut = lut;
data->theta = theta;
/* Write the WCS for the projection to the extension */
if( doextension ) {
kpg1Wwrt( (AstObject*)outfset, "WCS", mapcoordloc, status );
/* Write the pixel bounds for the map to the extension */
lbnd_temp[0] = 1; /* Don't get confused! Bounds for NDF that will */
ubnd_temp[0] = 2; /* contain the bounds for the output 2d map! */
bndndf = smf_get_ndfid( mapcoordloc, "LBND", "UPDATE", "UNKNOWN",
"_INTEGER", 1, lbnd_temp, ubnd_temp, status );
ndfMap( bndndf, "DATA", "_INTEGER", "WRITE", data_pntr, &nmap,
status );
data_index = data_pntr[0];
if( *status == SAI__OK ) {
data_index[0] = lbnd_out[0];
data_index[1] = lbnd_out[1];
} else {
errRep( FUNC_NAME, "Unable to map LBND in MAPCOORD extension",
status);
}
ndfAnnul( &bndndf, status );
bndndf = smf_get_ndfid( mapcoordloc, "UBND", "UPDATE", "UNKNOWN",
"_INTEGER", 1, lbnd_temp, ubnd_temp, status );
ndfMap( bndndf, "DATA", "_INTEGER", "WRITE", data_pntr, &nmap,
status );
data_index = data_pntr[0];
if( *status == SAI__OK ) {
data_index[0] = ubnd_out[0];
data_index[1] = ubnd_out[1];
} else {
errRep( FUNC_NAME, "Unable to map UBND in MAPCOORD extension",
status);
}
ndfAnnul( &bndndf, status );
}
}
}
/* Clean Up */
if( testsimpmap ) testsimpmap = astAnnul( testsimpmap );
if( testcmpmap ) testcmpmap = astAnnul( testcmpmap );
if( map2sky_old ) map2sky_old = astAnnul( map2sky_old );
if( oldfset ) oldfset = astAnnul( oldfset );
if (sky2map) sky2map = astAnnul( sky2map );
if (bolo2map) bolo2map = astAnnul( bolo2map );
if( abskyfrm ) abskyfrm = astAnnul( abskyfrm );
if( oskyfrm ) oskyfrm = astAnnul( oskyfrm );
if( mapcoordloc ) datAnnul( &mapcoordloc, status );
if( indf_lat != NDF__NOID ) ndfAnnul( &indf_lat, status );
if( indf_lon != NDF__NOID ) ndfAnnul( &indf_lon, status );
/* If we get this far, docalc=0, and status is OK, there must be
a good LUT in there already. Map it so that it is accessible to
the caller; "UPDATE" so that the caller can modify it if desired. */
if( (*status == SAI__OK) && (docalc == 0) ) {
smf_open_mapcoord( data, "UPDATE", status );
}
/* Clean up job data */
if( job_data ) {
for( ii=0; (*status==SAI__OK)&&(ii<nw); ii++ ) {
pdata = job_data + ii;
if( pdata->data ) {
smf_lock_data( pdata->data, 1, status );
smf_close_file( &(pdata->data), status );
}
astLock( pdata->abskyfrm, 0 );
pdata->abskyfrm = astAnnul( pdata->abskyfrm );
astLock( pdata->sky2map, 0 );
pdata->sky2map = astAnnul( pdata->sky2map );
}
job_data = astFree( job_data );
}
}
HDSLoc * smf_get_smurfloc( const smfData * data, const char * accmode, int * status ) {
if (*status != SAI__OK) return NULL;
return smf_get_xloc( data, SMURF__EXTNAME, SMURF__EXTTYPE, accmode, 0, 0, status );
}
void smf_calc_stareimage( smfData *data, const int naver, int *status) {
double *avdata = NULL; /* Pointer to averaged data */
int dims[2]; /* Dimensions of the stored image */
smfHead *hdr; /* Header information */
int j; /* Loop counter */
size_t npts; /* Number of points in the averaged data */
int numaver; /* Number of samples to average */
int numimages; /* Number of output STARE images */
int numsamples; /* Number of time slices (samples) */
int remainder; /* Remainder from dividing no of timeslices
by number of frames to average */
HDSLoc *scu2redloc = NULL; /* Locator to SCU2RED extension */
double steptime; /* Step time per sample, sec */
double *zero = NULL; /* Bolometer zero points */
if ( *status != SAI__OK ) return;
/* Check we have time-series data */
if ( data->ndims != 3) {
*status = SAI__ERROR;
errRep(FUNC_NAME,
"File does not contain time series data - unable to process",
status);
return;
}
/* Check we have flatfielded data */
if ( !smf_history_check( data, "smf_flatfield", status) ) {
if ( *status == SAI__OK ) {
*status = SAI__ERROR;
errRep(FUNC_NAME, "Data have not been flatfielded ", status);
return;
}
}
/* Do we have STARE data? */
hdr = data->hdr;
if ( hdr->obsmode == SMF__OBS_STARE ) {
msgOutif(MSG__VERB," ", "Processing STARE data", status);
if (smf_history_check( data, "smf_calc_stareimage", status) ) {
msgOut(" ", "File contains STARE data which has already been processed: proceeding but this WILL OVERWRITE any STARE images already written into the SCU2RED extension",
status);
}
/* Number of output STARE images */
numsamples = (data->dims)[2];
/* If naver < 0 then re-calculate to give 1-second images */
if ( naver < 0 ) {
smf_fits_getD(hdr, "STEPTIME", &steptime, status);
numaver = 1.0 / steptime;
} else if ( naver > numsamples ) {
msgOutif(MSG__NORM, "", "Warning: NAVER exceeds the number of samples - will average entire time stream to create a single image", status);
numaver = numsamples;
} else {
numaver = naver;
}
numimages = numsamples / numaver;
/* Warn user if the number to average is not a factor of the
number of time slices */
remainder = numsamples % numaver;
if ( remainder != 0 ) {
msgSeti("R", remainder);
msgSeti("N", numaver);
msgSeti("T", numsamples);
msgOutif(MSG__NORM, "", "Warning: NAVER (^N) is not a factor of the number of time slices (^T): final ^R samples will not be included in an image", status);
}
/* Helpful info for the user */
msgSeti("N",numimages);
if ( numimages == 1 ) {
msgSetc("IM","image");
} else {
msgSetc("IM","images");
}
msgOutif( MSG__VERB, "", "Calculating ^N STARE ^IM", status );
/* Obtain a locator for the extension where for the images will
be stored */
scu2redloc = smf_get_xloc(data, "SCU2RED", "SCUBA2_MAP_ARR", "WRITE",
0, NULL, status);
/* Set the dimensions of the output images - they are all the same
so they can be safely set outside the loop below */
dims[0] = (data->dims)[0];
dims[1] = (data->dims)[1];
/* Loop over the number of output images */
for ( j=0; j<numimages; j++) {
/* Average the time stream data over the desired interval */
smf_average_dataD( data, j*numaver, numaver, 1, &avdata, &npts, status );
/* Store the averaged data as an image */
smf_store_image( data, scu2redloc, j, 2, dims, numaver, 0, 0, avdata, NULL,
status);
avdata = astFree( avdata );
zero = astFree( zero );
}
/* Add a history entry if everything's OK */
smf_history_add(data, "smf_calc_stareimage", status );
/* Release SCU2RED locator */
datAnnul( &scu2redloc, status );
} else {
msgOutif(MSG__NORM," ",
"Input file is not a STARE observation - ignoring", status);
}
}
