source: trunk/src/STGrid.cpp@ 2388

Last change on this file since 2388 was 2388, checked in by Takeshi Nakazato, 14 years ago

New Development: No

JIRA Issue: Yes CAS-2816

Ready for Test: Yes

Interface Changes: No

What Interface Changed: Please list interface changes

Test Programs: List test programs

Put in Release Notes: Yes/No

Module(s): Module Names change impacts.

Description: Describe your changes here...

Introduced some parameter for user input.
setupGrid() is called within grid(), not defineImage().
File size: 35.5 KB
Line 
1#include <iostream>
2#include <fstream>
3
4#include <casa/BasicSL/String.h>
5#include <casa/Arrays/Vector.h>
6#include <casa/Arrays/Matrix.h>
7#include <casa/Arrays/Cube.h>
8#include <casa/Arrays/ArrayMath.h>
9#include <casa/Arrays/ArrayIter.h>
10#include <casa/Quanta/Quantum.h>
11#include <casa/Quanta/QuantumHolder.h>
12#include <casa/Utilities/CountedPtr.h>
13#include <casa/Logging/LogIO.h>
14
15#include <tables/Tables/Table.h>
16#include <tables/Tables/TableRecord.h>
17#include <tables/Tables/ExprNode.h>
18#include <tables/Tables/ScalarColumn.h>
19#include <tables/Tables/ArrayColumn.h>
20#include <tables/Tables/TableIter.h>
21
22#include <measures/Measures/MDirection.h>
23
24#include <MathUtils.h>
25
26#include "STGrid.h"
27
28using namespace std ;
29using namespace casa ;
30using namespace asap ;
31
32namespace asap {
33
34// for performance check
35double eToInt = 0.0 ;
36double eGetWeight = 0.0 ;
37
38// constructor
39STGrid::STGrid()
40{
41 init() ;
42}
43
44STGrid::STGrid( const string infile )
45{
46 init() ;
47
48 setFileIn( infile ) ;
49}
50
51void STGrid::init()
52{
53 ifno_ = -1 ;
54 nx_ = -1 ;
55 ny_ = -1 ;
56 npol_ = 0 ;
57 nchan_ = 0 ;
58 nrow_ = 0 ;
59 cellx_ = 0.0 ;
60 celly_ = 0.0 ;
61 center_ = Vector<Double> ( 2, 0.0 ) ;
62 convType_ = "BOX" ;
63 wtype_ = "UNIFORM" ;
64 convSupport_ = -1 ;
65 userSupport_ = -1 ;
66 convSampling_ = 100 ;
67 nprocessed_ = 0 ;
68 nchunk_ = 0 ;
69
70 // initialize user input
71 nxUI_ = -1 ;
72 nyUI_ = -1 ;
73 cellxUI_ = "" ;
74 cellyUI_ = "" ;
75 centerUI_ = "" ;
76}
77
78void STGrid::setFileIn( const string infile )
79{
80 String name( infile ) ;
81 if ( infile_.compare( name ) != 0 ) {
82 infile_ = String( infile ) ;
83 }
84}
85
86void STGrid::setPolList( vector<unsigned int> pols )
87{
88 pollist_.assign( Vector<uInt>( pols ) ) ;
89}
90
91void STGrid::setScanList( vector<unsigned int> scans )
92{
93 scanlist_.assign( Vector<uInt>( scans ) ) ;
94}
95
96void STGrid::setWeight( const string wType )
97{
98 wtype_ = String( wType ) ;
99 wtype_.upcase() ;
100}
101
102void STGrid::defineImage( int nx,
103 int ny,
104 string scellx,
105 string scelly,
106 string scenter )
107{
108 nxUI_ = (Int)nx ;
109 nyUI_ = (Int)ny ;
110 cellxUI_ = String( scellx ) ;
111 cellyUI_ = String( scelly ) ;
112 centerUI_ = String( scenter ) ;
113}
114
115void STGrid::setFunc( string convType,
116 int convSupport )
117{
118 convType_ = String( convType ) ;
119 convType_.upcase() ;
120 userSupport_ = (Int)convSupport ;
121}
122
123#define NEED_UNDERSCORES
124#if defined(NEED_UNDERSCORES)
125#define ggridsd ggridsd_
126#endif
127extern "C" {
128 void ggridsd(Double*,
129 const Complex*,
130 Int*,
131 Int*,
132 Int*,
133 const Int*,
134 const Int*,
135 const Float*,
136 Int*,
137 Int*,
138 Complex*,
139 Float*,
140 Int*,
141 Int*,
142 Int *,
143 Int *,
144 Int*,
145 Int*,
146 Float*,
147 Int*,
148 Int*,
149 Double*);
150}
151void STGrid::call_ggridsd( Array<Double> &xypos,
152 Array<Complex> &spectra,
153 Int &nvispol,
154 Int &nvischan,
155 Array<Int> &flagtra,
156 Array<Int> &flagrow,
157 Array<Float> &weight,
158 Int &nrow,
159 Int &irow,
160 Array<Complex> &gdata,
161 Array<Float> &gwgt,
162 Int &nx,
163 Int &ny,
164 Int &npol,
165 Int &nchan,
166 Int &support,
167 Int &sampling,
168 Vector<Float> &convFunc,
169 Int *chanMap,
170 Int *polMap )
171{
172 // parameters for gridding
173 Int idopsf = 0 ;
174 Int len = npol*nchan ;
175 Double *sumw_p = new Double[len] ;
176 {
177 Double *work_p = sumw_p ;
178 for ( Int i = 0 ; i < len ; i++ ) {
179 *work_p = 0.0 ;
180 work_p++ ;
181 }
182 }
183
184 // prepare pointer
185 Bool deletePos, deleteData, deleteWgt, deleteFlag, deleteFlagR, deleteConv, deleteDataG, deleteWgtG ;
186 Double *xy_p = xypos.getStorage( deletePos ) ;
187 const Complex *values_p = spectra.getStorage( deleteData ) ;
188 const Int *flag_p = flagtra.getStorage( deleteFlag ) ;
189 const Int *rflag_p = flagrow.getStorage( deleteFlagR ) ;
190 const Float *wgt_p = weight.getStorage( deleteWgt ) ;
191 Complex *grid_p = gdata.getStorage( deleteDataG ) ;
192 Float *wgrid_p = gwgt.getStorage( deleteWgtG ) ;
193 Float *conv_p = convFunc.getStorage( deleteConv ) ;
194
195 // pass copy of irow to ggridsd since it will be modified in theroutine
196 Int irowCopy = irow ;
197
198 // call ggridsd
199 ggridsd( xy_p,
200 values_p,
201 &nvispol,
202 &nvischan,
203 &idopsf,
204 flag_p,
205 rflag_p,
206 wgt_p,
207 &nrow,
208 &irowCopy,
209 grid_p,
210 wgrid_p,
211 &nx,
212 &ny,
213 &npol,
214 &nchan,
215 &support,
216 &sampling,
217 conv_p,
218 chanMap,
219 polMap,
220 sumw_p ) ;
221
222 // finalization
223 xypos.putStorage( xy_p, deletePos ) ;
224 spectra.freeStorage( values_p, deleteData ) ;
225 flagtra.freeStorage( flag_p, deleteFlag ) ;
226 flagrow.freeStorage( rflag_p, deleteFlagR ) ;
227 weight.freeStorage( wgt_p, deleteWgt ) ;
228 gdata.putStorage( grid_p, deleteDataG ) ;
229 gwgt.putStorage( wgrid_p, deleteWgtG ) ;
230 convFunc.putStorage( conv_p, deleteConv ) ;
231 delete sumw_p ;
232}
233
234Bool STGrid::pastEnd()
235{
236 LogIO os( LogOrigin("STGrid","pastEnd",WHERE) ) ;
237 Bool b = nprocessed_ >= nrow_ ;
238 return b ;
239}
240
241void STGrid::grid()
242{
243 LogIO os( LogOrigin("STGrid", "grid", WHERE) ) ;
244 double t0,t1 ;
245
246 // data selection
247 t0 = mathutil::gettimeofday_sec() ;
248 selectData() ;
249 t1 = mathutil::gettimeofday_sec() ;
250 os << "selectData: elapsed time is " << t1-t0 << " sec." << LogIO::POST ;
251
252 setupGrid() ;
253 setupArray() ;
254
255 if ( wtype_.compare("UNIFORM") != 0 &&
256 wtype_.compare("TINT") != 0 &&
257 wtype_.compare("TSYS") != 0 &&
258 wtype_.compare("TINTSYS") != 0 ) {
259 LogIO os( LogOrigin("STGrid", "grid", WHERE) ) ;
260 os << LogIO::WARN << "Unsupported weight type '" << wtype_ << "', apply UNIFORM weight" << LogIO::POST ;
261 wtype_ = "UNIFORM" ;
262 }
263
264 // grid parameter
265 os << LogIO::DEBUGGING ;
266 os << "----------" << endl ;
267 os << "Data selection summary" << endl ;
268 os << " ifno = " << ifno_ << endl ;
269 os << " pollist = " << pollist_ << endl ;
270 os << " scanlist = " << scanlist_ << endl ;
271 os << "----------" << endl ;
272 os << "Grid parameter summary" << endl ;
273 os << " (nx,ny) = (" << nx_ << "," << ny_ << ")" << endl ;
274 os << " (cellx,celly) = (" << cellx_ << "," << celly_ << ")" << endl ;
275 os << " center = " << center_ << endl ;
276 os << " weighting = " << wtype_ << endl ;
277 os << " convfunc = " << convType_ << " with support " << convSupport_ << endl ;
278 os << "----------" << LogIO::POST ;
279 os << LogIO::NORMAL ;
280
281 Bool doAll = examine() ;
282
283 if ( doAll )
284 gridPerPol() ;
285 else
286 gridPerRow() ;
287}
288
289Bool STGrid::examine()
290{
291 // TODO: nchunk_ must be determined from nchan_, npol_, and (nx_,ny_)
292 // by considering data size to be allocated for ggridsd input/output
293 nchunk_ = 400 ;
294 Bool b = nchunk_ >= nrow_ ;
295 nchunk_ = min( nchunk_, nrow_ ) ;
296 return b ;
297}
298
299void STGrid::gridPerRow()
300{
301 LogIO os( LogOrigin("STGrid", "gridPerRow", WHERE) ) ;
302 double t0, t1 ;
303
304 // convolution kernel
305 Vector<Float> convFunc ;
306 t0 = mathutil::gettimeofday_sec() ;
307 setConvFunc( convFunc ) ;
308 t1 = mathutil::gettimeofday_sec() ;
309 os << "setConvFunc: elapsed time is " << t1-t0 << " sec." << LogIO::POST ;
310
311 // grid data
312 Int gnx = nx_ ;
313 Int gny = ny_ ;
314 // Extend grid plane with convSupport_
315// Int gnx = nx_+convSupport_*2 ;
316// Int gny = ny_+convSupport_*2 ;
317 IPosition gshape( 4, gnx, gny, npol_, nchan_ ) ;
318 Array<Complex> gdataArrC( gshape, 0.0 ) ;
319 // 2011/12/20 TN
320 // data_ and gwgtArr share storage
321 data_.resize( gshape ) ;
322 data_ = 0.0 ;
323 Array<Float> gwgtArr( data_ ) ;
324
325 // parameters for gridding
326 Int *chanMap = new Int[nchan_] ;
327 {
328 Int *work_p = chanMap ;
329 for ( Int i = 0 ; i < nchan_ ; i++ ) {
330 *work_p = i ;
331 work_p++ ;
332 }
333 }
334 Int *polMap = new Int[1] ;
335 Int nvispol = 1 ;
336 Int irow = -1 ;
337
338 // for performance check
339 double eGetData = 0.0 ;
340 double eToPixel = 0.0 ;
341 double eGGridSD = 0.0 ;
342 double eInitPol = 0.0 ;
343
344 for ( Int ipol = 0 ; ipol < npol_ ; ipol++ ) {
345 t0 = mathutil::gettimeofday_sec() ;
346 initPol( ipol ) ;
347 t1 = mathutil::gettimeofday_sec() ;
348 eInitPol += t1-t0 ;
349
350 polMap[0] = ipol ;
351
352 os << "start pol " << ipol << LogIO::POST ;
353
354 while( !pastEnd() ) {
355 // data storage
356 IPosition cshape( 3, npol_, nchan_, nchunk_ ) ;
357 IPosition mshape( 2, npol_, nchunk_ ) ;
358 IPosition vshape( 1, nchunk_ ) ;
359 IPosition dshape( 2, 2, nchunk_ ) ;
360 IPosition wshape( 2, nchan_, nchunk_ ) ;
361 Array<Complex> spectra( wshape ) ;
362 Array<Int> flagtra( wshape ) ;
363 Array<Int> rflag( vshape ) ;
364 Array<Float> weight( wshape ) ;
365 Array<Double> direction( dshape ) ;
366 Array<Double> xypos( dshape ) ;
367
368 spectraF_.resize( wshape ) ;
369 flagtraUC_.resize( wshape ) ;
370 rflagUI_.resize( vshape ) ;
371
372 // retrieve data
373 t0 = mathutil::gettimeofday_sec() ;
374 Int nrow = getDataChunk( spectra, direction, flagtra, rflag, weight ) ;
375 t1 = mathutil::gettimeofday_sec() ;
376 eGetData += t1-t0 ;
377
378 // world -> pixel
379 t0 = mathutil::gettimeofday_sec() ;
380 toPixel( direction, xypos ) ;
381 t1 = mathutil::gettimeofday_sec() ;
382 eToPixel += t1-t0 ;
383
384 // call ggridsd
385 t0 = mathutil::gettimeofday_sec() ;
386 call_ggridsd( xypos,
387 spectra,
388 nvispol,
389 nchan_,
390 flagtra,
391 rflag,
392 weight,
393 nrow,
394 irow,
395 gdataArrC,
396 gwgtArr,
397 gnx,
398 gny,
399 npol_,
400 nchan_,
401 convSupport_,
402 convSampling_,
403 convFunc,
404 chanMap,
405 polMap ) ;
406 t1 = mathutil::gettimeofday_sec() ;
407 eGGridSD += t1-t0 ;
408
409 }
410
411 os << "end pol " << ipol << LogIO::POST ;
412
413 nprocessed_ = 0 ;
414 }
415 os << "initPol: elapsed time is " << eInitPol << " sec." << LogIO::POST ;
416 os << "getData: elapsed time is " << eGetData-eToInt-eGetWeight << " sec." << LogIO::POST ;
417 os << "toPixel: elapsed time is " << eToPixel << " sec." << LogIO::POST ;
418 os << "ggridsd: elapsed time is " << eGGridSD << " sec." << LogIO::POST ;
419 os << "toInt: elapsed time is " << eToInt << " sec." << LogIO::POST ;
420 os << "getWeight: elapsed time is " << eGetWeight << " sec." << LogIO::POST ;
421
422 delete polMap ;
423 delete chanMap ;
424
425 // set data
426 setData( gdataArrC, gwgtArr ) ;
427
428}
429
430void STGrid::gridPerPol()
431{
432 LogIO os( LogOrigin("STGrid", "gridPerPol", WHERE) ) ;
433 double t0, t1 ;
434
435 // convolution kernel
436 Vector<Float> convFunc ;
437 t0 = mathutil::gettimeofday_sec() ;
438 setConvFunc( convFunc ) ;
439 t1 = mathutil::gettimeofday_sec() ;
440 os << "setConvFunc: elapsed time is " << t1-t0 << " sec." << LogIO::POST ;
441
442 // prepare grid data storage
443 Int gnx = nx_ ;
444 Int gny = ny_ ;
445// // Extend grid plane with convSupport_
446// Int gnx = nx_+convSupport_*2 ;
447// Int gny = ny_+convSupport_*2 ;
448 IPosition gshape( 4, gnx, gny, npol_, nchan_ ) ;
449 Array<Complex> gdataArrC( gshape, 0.0 ) ;
450 //Array<Float> gwgtArr( gshape, 0.0 ) ;
451 // 2011/12/20 TN
452 // data_ and weight array shares storage
453 data_.resize( gshape ) ;
454 data_ = 0.0 ;
455 Array<Float> gwgtArr( data_ ) ;
456
457 // to read data from the table
458 IPosition mshape( 2, nchan_, nrow_ ) ;
459 IPosition dshape( 2, 2, nrow_ ) ;
460 Array<Complex> spectra( mshape ) ;
461 Array<Double> direction( dshape ) ;
462 Array<Int> flagtra( mshape ) ;
463 Array<Int> rflag( IPosition(1,nrow_) ) ;
464 Array<Float> weight( mshape ) ;
465 Array<Double> xypos( dshape ) ;
466
467 // maps
468 Int *chanMap = new Int[nchan_] ;
469 {
470 Int *work_p = chanMap ;
471 for ( Int i = 0 ; i < nchan_ ; i++ ) {
472 *work_p = i ;
473 work_p++ ;
474 }
475 }
476 Int *polMap = new Int[1] ;
477
478 // some parameters for ggridsd
479 Int nvispol = 1 ;
480 Int irow = -1 ;
481
482 // for performance check
483 double eInitPol = 0.0 ;
484 double eGetData = 0.0 ;
485 double eToPixel = 0.0 ;
486 double eGGridSD = 0.0 ;
487 double eToInt = 0.0 ;
488
489 for ( Int ipol = 0 ; ipol < npol_ ; ipol++ ) {
490 t0 = mathutil::gettimeofday_sec() ;
491 initPol( ipol ) ;
492 t1 = mathutil::gettimeofday_sec() ;
493 eInitPol += t1-t0 ;
494
495 // retrieve data
496 t0 = mathutil::gettimeofday_sec() ;
497 getDataPerPol( spectra, direction, flagtra, rflag, weight ) ;
498 t1 = mathutil::gettimeofday_sec() ;
499 eGetData += t1-t0 ;
500
501 // world -> pixel
502 t0 = mathutil::gettimeofday_sec() ;
503 toPixel( direction, xypos ) ;
504 t1 = mathutil::gettimeofday_sec() ;
505 eToPixel += t1-t0 ;
506
507 // call ggridsd
508 polMap[0] = ipol ;
509 t0 = mathutil::gettimeofday_sec() ;
510 call_ggridsd( xypos,
511 spectra,
512 nvispol,
513 nchan_,
514 flagtra,
515 rflag,
516 weight,
517 nrow_,
518 irow,
519 gdataArrC,
520 gwgtArr,
521 gnx,
522 gny,
523 npol_,
524 nchan_,
525 convSupport_,
526 convSampling_,
527 convFunc,
528 chanMap,
529 polMap ) ;
530 t1 = mathutil::gettimeofday_sec() ;
531 eGGridSD += t1-t0 ;
532 }
533 os << "initPol: elapsed time is " << eInitPol << " sec." << LogIO::POST ;
534 os << "getData: elapsed time is " << eGetData-eToInt-eGetWeight << " sec." << LogIO::POST ;
535 os << "toPixel: elapsed time is " << eToPixel << " sec." << LogIO::POST ;
536 os << "ggridsd: elapsed time is " << eGGridSD << " sec." << LogIO::POST ;
537 os << "toInt: elapsed time is " << eToInt << " sec." << LogIO::POST ;
538 os << "getWeight: elapsed time is " << eGetWeight << " sec." << LogIO::POST ;
539
540 // delete maps
541 delete polMap ;
542 delete chanMap ;
543
544 setData( gdataArrC, gwgtArr ) ;
545// os << "gdataArr = " << gdataArr << LogIO::POST ;
546// os << "gwgtArr = " << gwgtArr << LogIO::POST ;
547// os << "data_ " << data_ << LogIO::POST ;
548}
549
550void STGrid::initPol( Int ipol )
551{
552 LogIO os( LogOrigin("STGrid","initPol",WHERE) ) ;
553 if ( npolOrg_ == 1 ) {
554 os << "single polarization data." << LogIO::POST ;
555 ptab_ = tab_ ;
556 }
557 else
558 ptab_ = tab_( tab_.col("POLNO") == (uInt)ipol ) ;
559
560 attach( ptab_ ) ;
561}
562
563void STGrid::setData( Array<Complex> &gdata,
564 Array<Float> &gwgt )
565{
566 // 2011/12/20 TN
567 // gwgt and data_ share storage
568 LogIO os( LogOrigin("STGrid","setData",WHERE) ) ;
569 double t0, t1 ;
570 t0 = mathutil::gettimeofday_sec() ;
571 uInt len = data_.nelements() ;
572 const Complex *w1_p ;
573 Float *w2_p ;
574 Bool b1, b2 ;
575 const Complex *gdata_p = gdata.getStorage( b1 ) ;
576 Float *gwgt_p = data_.getStorage( b2 ) ;
577 w1_p = gdata_p ;
578 w2_p = gwgt_p ;
579 for ( uInt i = 0 ; i < len ; i++ ) {
580 if ( *w2_p > 0.0 ) *w2_p = (*w1_p).real() / *w2_p ;
581 w1_p++ ;
582 w2_p++ ;
583 }
584 gdata.freeStorage( gdata_p, b1 ) ;
585 data_.putStorage( gwgt_p, b2 ) ;
586 t1 = mathutil::gettimeofday_sec() ;
587 os << "setData: elapsed time is " << t1-t0 << " sec." << LogIO::POST ;
588}
589
590void STGrid::setupGrid()
591{
592 Double xmin,xmax,ymin,ymax ;
593 mapExtent( xmin, xmax, ymin, ymax ) ;
594
595 setupGrid( nxUI_, nyUI_, cellxUI_, cellyUI_,
596 xmin, xmax, ymin, ymax, centerUI_ ) ;
597}
598
599void STGrid::setupGrid( Int &nx,
600 Int &ny,
601 String &cellx,
602 String &celly,
603 Double &xmin,
604 Double &xmax,
605 Double &ymin,
606 Double &ymax,
607 String &center )
608{
609 LogIO os( LogOrigin("STGrid","setupGrid",WHERE) ) ;
610 //cout << "nx=" << nx << ", ny=" << ny << endl ;
611
612 // center position
613 if ( center.size() == 0 ) {
614 center_(0) = 0.5 * ( xmin + xmax ) ;
615 center_(1) = 0.5 * ( ymin + ymax ) ;
616 }
617 else {
618 String::size_type pos0 = center.find( " " ) ;
619 if ( pos0 == String::npos ) {
620 throw AipsError( "bad string format in parameter center" ) ;
621 }
622 String::size_type pos1 = center.find( " ", pos0+1 ) ;
623 String typestr, xstr, ystr ;
624 if ( pos1 != String::npos ) {
625 typestr = center.substr( 0, pos0 ) ;
626 xstr = center.substr( pos0+1, pos1-pos0 ) ;
627 ystr = center.substr( pos1+1 ) ;
628 // todo: convert to J2000 (or direction ref for DIRECTION column)
629 }
630 else {
631 typestr = "J2000" ;
632 xstr = center.substr( 0, pos0 ) ;
633 ystr = center.substr( pos0+1 ) ;
634 }
635 QuantumHolder qh ;
636 String err ;
637 qh.fromString( err, xstr ) ;
638 Quantum<Double> xcen = qh.asQuantumDouble() ;
639 qh.fromString( err, ystr ) ;
640 Quantum<Double> ycen = qh.asQuantumDouble() ;
641 center_(0) = xcen.getValue( "rad" ) ;
642 center_(1) = ycen.getValue( "rad" ) ;
643 }
644
645
646 nx_ = nx ;
647 ny_ = ny ;
648 if ( nx < 0 && ny > 0 ) {
649 nx_ = ny ;
650 ny_ = ny ;
651 }
652 if ( ny < 0 && nx > 0 ) {
653 nx_ = nx ;
654 ny_ = nx ;
655 }
656
657 //Double wx = xmax - xmin ;
658 //Double wy = ymax - ymin ;
659 Double wx = max( abs(xmax-center_(0)), abs(xmin-center_(0)) ) * 2 ;
660 Double wy = max( abs(ymax-center_(1)), abs(ymin-center_(1)) ) * 2 ;
661 // take 10% margin
662 wx *= 1.10 ;
663 wy *= 1.10 ;
664
665 Quantum<Double> qcellx ;
666 Quantum<Double> qcelly ;
667 //cout << "nx_ = " << nx_ << ", ny_ = " << ny_ << endl ;
668 if ( cellx.size() != 0 && celly.size() != 0 ) {
669 readQuantity( qcellx, cellx ) ;
670 readQuantity( qcelly, celly ) ;
671 }
672 else if ( celly.size() != 0 ) {
673 os << "Using celly to x-axis..." << LogIO::POST ;
674 readQuantity( qcelly, celly ) ;
675 qcellx = qcelly ;
676 }
677 else if ( cellx.size() != 0 ) {
678 os << "Using cellx to y-axis..." << LogIO::POST ;
679 readQuantity( qcellx, cellx ) ;
680 qcelly = qcellx ;
681 }
682 else {
683 if ( nx_ < 0 ) {
684 os << "No user preference in grid setting. Using default..." << LogIO::POST ;
685 readQuantity( qcellx, "1.0arcmin" ) ;
686 qcelly = qcellx ;
687 }
688 else {
689 if ( wx == 0.0 ) {
690 os << "Using default spatial extent (10arcmin) in x" << LogIO::POST ;
691 wx = 0.00290888 ;
692 }
693 if ( wy == 0.0 ) {
694 os << "Using default spatial extent (10arcmin) in y" << LogIO::POST ;
695 wy = 0.00290888 ;
696 }
697 qcellx = Quantum<Double>( wx/nx_, "rad" ) ;
698 qcelly = Quantum<Double>( wy/ny_, "rad" ) ;
699 }
700 }
701 cellx_ = qcellx.getValue( "rad" ) ;
702 celly_ = qcelly.getValue( "rad" ) ;
703 if ( nx_ < 0 ) {
704 if ( wx == 0.0 ) {
705 os << "Using default spatial extent (10arcmin) in x" << LogIO::POST ;
706 wx = 0.00290888 ;
707 }
708 if ( wy == 0.0 ) {
709 os << "Using default spatial extent (10arcmin) in y" << LogIO::POST ;
710 wy = 0.00290888 ;
711 }
712 nx_ = Int( ceil( wx/cellx_ ) ) ;
713 ny_ = Int( ceil( wy/celly_ ) ) ;
714 }
715}
716
717void STGrid::mapExtent( Double &xmin, Double &xmax,
718 Double &ymin, Double &ymax )
719{
720 //LogIO os( LogOrigin("STGrid","mapExtent",WHERE) ) ;
721 ROArrayColumn<Double> dirCol( tab_, "DIRECTION" ) ;
722 Matrix<Double> direction = dirCol.getColumn() ;
723 //os << "dirCol.nrow() = " << dirCol.nrow() << LogIO::POST ;
724 minMax( xmin, xmax, direction.row( 0 ) ) ;
725 minMax( ymin, ymax, direction.row( 1 ) ) ;
726 //os << "(xmin,xmax)=(" << xmin << "," << xmax << ")" << LogIO::POST ;
727 //os << "(ymin,ymax)=(" << ymin << "," << ymax << ")" << LogIO::POST ;
728}
729
730void STGrid::selectData()
731{
732 LogIO os( LogOrigin("STGrid","selectData",WHERE) ) ;
733 Int ifno = ifno_ ;
734 Table taborg( infile_ ) ;
735 if ( ifno == -1 ) {
736 ROScalarColumn<uInt> ifnoCol( taborg, "IFNO" ) ;
737 ifno = ifnoCol( 0 ) ;
738 os << LogIO::WARN
739 << "IFNO is not given. Using default IFNO: " << ifno << LogIO::POST ;
740 }
741 TableExprNode node ;
742 if ( isMultiIF( taborg ) ) {
743 os << "apply selection on IFNO" << LogIO::POST ;
744 node = taborg.col("IFNO") == ifno ;
745 }
746 if ( scanlist_.size() > 0 ) {
747 os << "apply selection on SCANNO" << LogIO::POST ;
748 node = node && taborg.col("SCANNO").in( scanlist_ ) ;
749 }
750 if ( node.isNull() ) {
751 tab_ = taborg ;
752 }
753 else {
754 tab_ = taborg( node ) ;
755 }
756 if ( tab_.nrow() == 0 ) {
757 os << LogIO::SEVERE
758 << "No corresponding rows for given selection: IFNO " << ifno ;
759 if ( scanlist_.size() > 0 )
760 os << " SCANNO " << scanlist_ ;
761 os << LogIO::EXCEPTION ;
762 }
763}
764
765Bool STGrid::isMultiIF( Table &tab )
766{
767 ROScalarColumn<uInt> ifnoCol( tab, "IFNO" ) ;
768 Vector<uInt> ifnos = ifnoCol.getColumn() ;
769 return anyNE( ifnos, ifnos[0] ) ;
770}
771
772void STGrid::attach( Table &tab )
773{
774 // attach to table
775 spectraCol_.attach( tab, "SPECTRA" ) ;
776 flagtraCol_.attach( tab, "FLAGTRA" ) ;
777 directionCol_.attach( tab, "DIRECTION" ) ;
778 flagRowCol_.attach( tab, "FLAGROW" ) ;
779 tsysCol_.attach( tab, "TSYS" ) ;
780 intervalCol_.attach( tab, "INTERVAL" ) ;
781// Vector<String> colnames( 6 ) ;
782// colnames[0] = "SPECTRA" ;
783// colnames[1] = "FLAGTRA" ;
784// colnames[2] = "DIRECTION" ;
785// colnames[3] = "FLAGROW" ;
786// colnames[4] = "TSYS" ;
787// colnames[5] = "INTERVAL" ;
788// row_ = ROTableRow( tab_, colnames ) ;
789// const TableRecord &rec = row_.record() ;
790// spectraRF_.attachToRecord( rec, colnames[0] ) ;
791// flagtraRF_.attachToRecord( rec, colnames[1] ) ;
792// directionRF_.attachToRecord( rec, colnames[2] ) ;
793// flagRowRF_.attachToRecord( rec, colnames[3] ) ;
794// tsysRF_.attachToRecord( rec, colnames[4] ) ;
795// intervalRF_.attachToRecord( rec, colnames[5] ) ;
796}
797
798void STGrid::getDataPerPol( Array<Float> &spectra,
799 Array<Double> &direction,
800 Array<uChar> &flagtra,
801 Array<uInt> &rflag,
802 Array<Float> &weight )
803{
804 LogIO os( LogOrigin("STGrid","getDataPerPol",WHERE) ) ;
805
806 // 2011/12/22 TN
807 // weight and tsys shares its storage
808 Array<Float> tsys( weight ) ;
809 Array<Double> tint( rflag.shape() ) ;
810
811 Vector<uInt> rflagVec( rflag ) ;
812 Vector<Double> tintVec( tint ) ;
813
814 spectraCol_.getColumn( spectra ) ;
815 flagtraCol_.getColumn( flagtra ) ;
816 flagRowCol_.getColumn( rflagVec ) ;
817 directionCol_.getColumn( direction ) ;
818 intervalCol_.getColumn( tintVec ) ;
819 Vector<Float> tsysTemp = tsysCol_( 0 ) ;
820 if ( tsysTemp.nelements() == (uInt)nchan_ ) {
821 tsysCol_.getColumn( tsys ) ;
822 }
823 else {
824 tsys = tsysTemp[0] ;
825 }
826
827 double t0,t1 ;
828 t0 = mathutil::gettimeofday_sec() ;
829 getWeight( weight, tsys, tint ) ;
830 t1 = mathutil::gettimeofday_sec() ;
831 eGetWeight += t1-t0 ;
832}
833
834void STGrid::getDataPerPol( Array<Complex> &spectra,
835 Array<Double> &direction,
836 Array<Int> &flagtra,
837 Array<Int> &rflag,
838 Array<Float> &weight )
839{
840 LogIO os( LogOrigin("STGrid","getDataPerPol",WHERE) ) ;
841 double t0, t1 ;
842
843 Array<uChar> flagUC( flagtra.shape() ) ;
844 Array<uInt> rflagUI( rflag.shape() ) ;
845 Array<Float> spectraF( spectra.shape() ) ;
846 getDataPerPol( spectraF, direction, flagUC, rflagUI, weight ) ;
847
848 convertArray( spectra, spectraF ) ;
849 t0 = mathutil::gettimeofday_sec() ;
850 toInt( flagUC, flagtra ) ;
851 toInt( rflagUI, rflag ) ;
852 t1 = mathutil::gettimeofday_sec() ;
853 eToInt += t1-t0 ;
854 //os << "toInt: elapsed time is " << t1-t0 << " sec." << LogIO::POST ;
855}
856
857Int STGrid::getDataChunk( Array<Complex> &spectra,
858 Array<Double> &direction,
859 Array<Int> &flagtra,
860 Array<Int> &rflag,
861 Array<Float> &weight )
862{
863 LogIO os( LogOrigin("STGrid","getDataChunk",WHERE) ) ;
864 Int nrow = getDataChunk( spectraF_, direction, flagtraUC_, rflagUI_, weight ) ;
865 if ( nrow < nchunk_ ) {
866 spectra.resize( spectraF_.shape() ) ;
867 flagtra.resize( flagtraUC_.shape() ) ;
868 rflag.resize( rflagUI_.shape() ) ;
869 }
870 double t0, t1 ;
871 t0 = mathutil::gettimeofday_sec() ;
872 convertArray( spectra, spectraF_ ) ;
873 toInt( flagtraUC_, flagtra ) ;
874 toInt( rflagUI_, rflag ) ;
875 t1 = mathutil::gettimeofday_sec() ;
876 eToInt = t1 - t0 ;
877
878 return nrow ;
879}
880
881Int STGrid::getDataChunk( Array<Float> &spectra,
882 Array<Double> &direction,
883 Array<uChar> &flagtra,
884 Array<uInt> &rflag,
885 Array<Float> &weight )
886{
887 LogIO os( LogOrigin("STGrid","getDataChunk",WHERE) ) ;
888 Int nrow = spectra.shape()[1] ;
889 Int remainingRow = nrow_ - nprocessed_ ;
890 if ( remainingRow < nrow ) {
891 nrow = remainingRow ;
892 IPosition mshape( 2, nchan_, nrow ) ;
893 IPosition vshape( 1, nrow ) ;
894 spectra.resize( mshape ) ;
895 flagtra.resize( mshape ) ;
896 direction.resize( IPosition(2,2,nrow) ) ;
897 rflag.resize( vshape ) ;
898 weight.resize( mshape ) ;
899 }
900 // 2011/12/22 TN
901 // tsys shares its storage with weight
902 Array<Float> tsys( weight ) ;
903 Array<Double> tint( rflag.shape() ) ;
904
905 Vector<uInt> rflagVec( rflag ) ;
906 Vector<Double> tintVec( tint ) ;
907
908 RefRows rows( nprocessed_, nprocessed_+nrow-1, 1 ) ;
909 //os<<LogIO::DEBUGGING<<"nprocessed_="<<nprocessed_<<": rows.nrows()="<<rows.nrows()<<LogIO::POST ;
910 spectraCol_.getColumnCells( rows, spectra ) ;
911 flagtraCol_.getColumnCells( rows, flagtra ) ;
912 directionCol_.getColumnCells( rows, direction ) ;
913 flagRowCol_.getColumnCells( rows, rflagVec ) ;
914 intervalCol_.getColumnCells( rows, tintVec ) ;
915 Vector<Float> tsysTemp = tsysCol_( nprocessed_ ) ;
916 if ( tsysTemp.nelements() == (uInt)nchan_ )
917 tsysCol_.getColumnCells( rows, tsys ) ;
918 else
919 tsys = tsysTemp[0] ;
920
921 double t0,t1 ;
922 t0 = mathutil::gettimeofday_sec() ;
923 getWeight( weight, tsys, tint ) ;
924 t1 = mathutil::gettimeofday_sec() ;
925 eGetWeight += t1-t0 ;
926
927 nprocessed_ += nrow ;
928
929 return nrow ;
930}
931
932void STGrid::setupArray()
933{
934 LogIO os( LogOrigin("STGrid","setupArray",WHERE) ) ;
935 ROScalarColumn<uInt> polnoCol( tab_, "POLNO" ) ;
936 Vector<uInt> pols = polnoCol.getColumn() ;
937 //os << pols << LogIO::POST ;
938 Vector<uInt> pollistOrg ;
939 npolOrg_ = 0 ;
940 uInt polno ;
941 for ( uInt i = 0 ; i < polnoCol.nrow() ; i++ ) {
942 //polno = polnoCol( i ) ;
943 polno = pols( i ) ;
944 if ( allNE( pollistOrg, polno ) ) {
945 pollistOrg.resize( npolOrg_+1, True ) ;
946 pollistOrg[npolOrg_] = polno ;
947 npolOrg_++ ;
948 }
949 }
950 if ( pollist_.size() == 0 )
951 pollist_ = pollistOrg ;
952 else {
953 Vector<uInt> newlist ;
954 uInt newsize = 0 ;
955 for ( uInt i = 0 ; i < pollist_.size() ; i++ ) {
956 if ( anyEQ( pollistOrg, pollist_[i] ) ) {
957 newlist.resize( newsize+1, True ) ;
958 newlist[newsize] = pollist_[i] ;
959 newsize++ ;
960 }
961 }
962 pollist_.assign( newlist ) ;
963 }
964 npol_ = pollist_.size() ;
965 if ( npol_ == 0 ) {
966 os << LogIO::SEVERE << "Empty pollist" << LogIO::EXCEPTION ;
967 }
968 nrow_ = tab_.nrow() / npolOrg_ ;
969 ROArrayColumn<uChar> tmpCol( tab_, "FLAGTRA" ) ;
970 nchan_ = tmpCol( 0 ).nelements() ;
971// os << "npol_ = " << npol_ << "(" << pollist_ << ")" << endl
972// << "nchan_ = " << nchan_ << endl
973// << "nrow_ = " << nrow_ << LogIO::POST ;
974}
975
976void STGrid::getWeight( Array<Float> &w,
977 Array<Float> &tsys,
978 Array<Double> &tint )
979{
980 LogIO os( LogOrigin("STGrid","getWeight",WHERE) ) ;
981
982 // 2011/12/22 TN
983 // w (weight) and tsys share storage
984 IPosition refShape = tsys.shape() ;
985 Int nchan = refShape[0] ;
986 Int nrow = refShape[1] ;
987// os << "nchan=" << nchan << ", nrow=" << nrow << LogIO::POST ;
988// os << "w.shape()=" << w.shape() << endl
989// << "tsys.shape()=" << tsys.shape() << endl
990// << "tint.shape()=" << tint.shape() << LogIO::POST ;
991
992 // set weight
993 if ( wtype_.compare( "UNIFORM" ) == 0 ) {
994 w = 1.0 ;
995 }
996 else if ( wtype_.compare( "TINT" ) == 0 ) {
997 Bool b0, b1 ;
998 Float *w_p = w.getStorage( b0 ) ;
999 Float *w0_p = w_p ;
1000 const Double *ti_p = tint.getStorage( b1 ) ;
1001 const Double *w1_p = ti_p ;
1002 for ( Int irow = 0 ; irow < nrow ; irow++ ) {
1003 for ( Int ichan = 0 ; ichan < nchan ; ichan++ ) {
1004 *w0_p = *w1_p ;
1005 w0_p++ ;
1006 }
1007 w1_p++ ;
1008 }
1009 w.putStorage( w_p, b0 ) ;
1010 tint.freeStorage( ti_p, b1 ) ;
1011 }
1012 else if ( wtype_.compare( "TSYS" ) == 0 ) {
1013 Bool b0 ;
1014 Float *w_p = w.getStorage( b0 ) ;
1015 Float *w0_p = w_p ;
1016 for ( Int irow = 0 ; irow < nrow ; irow++ ) {
1017 for ( Int ichan = 0 ; ichan < nchan ; ichan++ ) {
1018 Float temp = *w0_p ;
1019 *w0_p = 1.0 / ( temp * temp ) ;
1020 w0_p++ ;
1021 }
1022 }
1023 w.putStorage( w_p, b0 ) ;
1024 }
1025 else if ( wtype_.compare( "TINTSYS" ) == 0 ) {
1026 Bool b0, b1 ;
1027 Float *w_p = w.getStorage( b0 ) ;
1028 Float *w0_p = w_p ;
1029 const Double *ti_p = tint.getStorage( b1 ) ;
1030 const Double *w1_p = ti_p ;
1031 for ( Int irow = 0 ; irow < nrow ; irow++ ) {
1032 Float interval = *w1_p ;
1033 for ( Int ichan = 0 ; ichan < nchan ; ichan++ ) {
1034 Float temp = *w0_p ;
1035 *w0_p = interval / ( temp * temp ) ;
1036 w0_p++ ;
1037 }
1038 w1_p++ ;
1039 }
1040 w.putStorage( w_p, b0 ) ;
1041 tint.freeStorage( ti_p, b1 ) ;
1042 }
1043 else {
1044 //LogIO os( LogOrigin("STGrid", "getWeight", WHERE) ) ;
1045 //os << LogIO::WARN << "Unsupported weight type '" << wtype_ << "', apply UNIFORM weight" << LogIO::POST ;
1046 w = 1.0 ;
1047 }
1048}
1049
1050void STGrid::toInt( Array<uChar> &u, Array<Int> &v )
1051{
1052 uInt len = u.nelements() ;
1053 Int *int_p = new Int[len] ;
1054 Bool deleteIt ;
1055 const uChar *data_p = u.getStorage( deleteIt ) ;
1056 Int *i_p = int_p ;
1057 const uChar *u_p = data_p ;
1058 for ( uInt i = 0 ; i < len ; i++ ) {
1059 *i_p = ( *u_p == 0 ) ? 0 : 1 ;
1060 i_p++ ;
1061 u_p++ ;
1062 }
1063 u.freeStorage( data_p, deleteIt ) ;
1064 v.takeStorage( u.shape(), int_p, TAKE_OVER ) ;
1065}
1066
1067void STGrid::toInt( Array<uInt> &u, Array<Int> &v )
1068{
1069 uInt len = u.nelements() ;
1070 Int *int_p = new Int[len] ;
1071 Bool deleteIt ;
1072 const uInt *data_p = u.getStorage( deleteIt ) ;
1073 Int *i_p = int_p ;
1074 const uInt *u_p = data_p ;
1075 for ( uInt i = 0 ; i < len ; i++ ) {
1076 *i_p = ( *u_p == 0 ) ? 0 : 1 ;
1077 i_p++ ;
1078 u_p++ ;
1079 }
1080 u.freeStorage( data_p, deleteIt ) ;
1081 v.takeStorage( u.shape(), int_p, TAKE_OVER ) ;
1082}
1083
1084void STGrid::toPixel( Array<Double> &world, Array<Double> &pixel )
1085{
1086 // gridding will be done on (nx_+2*convSupport_) x (ny_+2*convSupport_)
1087 // grid plane to avoid unexpected behavior on grid edge
1088 Block<Double> pixc( 2 ) ;
1089 pixc[0] = Double( nx_-1 ) * 0.5 ;
1090 pixc[1] = Double( ny_-1 ) * 0.5 ;
1091// pixc[0] = Double( nx_+2*convSupport_-1 ) * 0.5 ;
1092// pixc[1] = Double( ny_+2*convSupport_-1 ) * 0.5 ;
1093 uInt nrow = world.shape()[1] ;
1094 Bool bw, bp ;
1095 const Double *w_p = world.getStorage( bw ) ;
1096 Double *p_p = pixel.getStorage( bp ) ;
1097 const Double *ww_p = w_p ;
1098 Double *wp_p = p_p ;
1099 for ( uInt i = 0 ; i < nrow ; i++ ) {
1100 *wp_p = pixc[0] + ( *ww_p - center_[0] ) / cellx_ ;
1101 wp_p++ ;
1102 ww_p++ ;
1103 *wp_p = pixc[1] + ( *ww_p - center_[1] ) / celly_ ;
1104 wp_p++ ;
1105 ww_p++ ;
1106 }
1107 world.freeStorage( w_p, bw ) ;
1108 pixel.putStorage( p_p, bp ) ;
1109// String gridfile = "grid."+convType_+"."+String::toString(convSupport_)+".dat" ;
1110// ofstream ofs( gridfile.c_str(), ios::out ) ;
1111// ofs << "center " << center_(0) << " " << pixc(0)
1112// << " " << center_(1) << " " << pixc(1) << endl ;
1113// for ( uInt irow = 0 ; irow < nrow ; irow++ ) {
1114// ofs << irow ;
1115// for ( uInt i = 0 ; i < 2 ; i++ ) {
1116// ofs << " " << world(i, irow) << " " << pixel(i, irow) ;
1117// }
1118// ofs << endl ;
1119// }
1120// ofs.close() ;
1121}
1122
1123void STGrid::boxFunc( Vector<Float> &convFunc, Int &convSize )
1124{
1125 convFunc = 0.0 ;
1126 for ( Int i = 0 ; i < convSize/2 ; i++ )
1127 convFunc(i) = 1.0 ;
1128}
1129
1130#define NEED_UNDERSCORES
1131#if defined(NEED_UNDERSCORES)
1132#define grdsf grdsf_
1133#endif
1134extern "C" {
1135 void grdsf(Double*, Double*);
1136}
1137void STGrid::spheroidalFunc( Vector<Float> &convFunc )
1138{
1139 convFunc = 0.0 ;
1140 for ( Int i = 0 ; i < convSampling_*convSupport_ ; i++ ) {
1141 Double nu = Double(i) / Double(convSupport_*convSampling_) ;
1142 Double val ;
1143 grdsf( &nu, &val ) ;
1144 convFunc(i) = ( 1.0 - nu * nu ) * val ;
1145 }
1146}
1147
1148void STGrid::gaussFunc( Vector<Float> &convFunc )
1149{
1150 convFunc = 0.0 ;
1151 // HWHM of the Gaussian is convSupport_ / 4
1152 // To take into account Gaussian tail, kernel cutoff is set to 4 * HWHM
1153 Int len = convSampling_ * convSupport_ ;
1154 Double hwhm = len * 0.25 ;
1155 for ( Int i = 0 ; i < len ; i++ ) {
1156 Double val = Double(i) / hwhm ;
1157 convFunc(i) = exp( -log(2)*val*val ) ;
1158 }
1159}
1160
1161void STGrid::pbFunc( Vector<Float> &convFunc )
1162{
1163 convFunc = 0.0 ;
1164}
1165
1166void STGrid::setConvFunc( Vector<Float> &convFunc )
1167{
1168 convSupport_ = userSupport_ ;
1169 if ( convType_ == "BOX" ) {
1170 if ( convSupport_ < 0 )
1171 convSupport_ = 0 ;
1172 Int convSize = convSampling_ * ( 2 * convSupport_ + 2 ) ;
1173 convFunc.resize( convSize ) ;
1174 boxFunc( convFunc, convSize ) ;
1175 }
1176 else if ( convType_ == "SF" ) {
1177 if ( convSupport_ < 0 )
1178 convSupport_ = 3 ;
1179 Int convSize = convSampling_ * ( 2 * convSupport_ + 2 ) ;
1180 convFunc.resize( convSize ) ;
1181 spheroidalFunc( convFunc ) ;
1182 }
1183 else if ( convType_ == "GAUSS" ) {
1184 // to take into account Gaussian tail
1185 if ( convSupport_ < 0 )
1186 convSupport_ = 12 ; // 3 * 4
1187 else {
1188 convSupport_ = userSupport_ * 4 ;
1189 }
1190 Int convSize = convSampling_ * ( 2 * convSupport_ + 2 ) ;
1191 convFunc.resize( convSize ) ;
1192 gaussFunc( convFunc ) ;
1193 }
1194 else if ( convType_ == "PB" ) {
1195 if ( convSupport_ < 0 )
1196 convSupport_ = 0 ;
1197 pbFunc( convFunc ) ;
1198 }
1199 else {
1200 throw AipsError( "Unsupported convolution function" ) ;
1201 }
1202}
1203
1204string STGrid::saveData( string outfile )
1205{
1206 LogIO os( LogOrigin("STGrid", "saveData", WHERE) ) ;
1207 double t0, t1 ;
1208 t0 = mathutil::gettimeofday_sec() ;
1209
1210 //Int polno = 0 ;
1211 String outfile_ ;
1212 if ( outfile.size() == 0 ) {
1213 if ( infile_.lastchar() == '/' ) {
1214 outfile_ = infile_.substr( 0, infile_.size()-1 ) ;
1215 }
1216 else {
1217 outfile_ = infile_ ;
1218 }
1219 outfile_ += ".grid" ;
1220 }
1221 else {
1222 outfile_ = outfile ;
1223 }
1224 Table tab ;
1225 prepareTable( tab, outfile_ ) ;
1226 IPosition dshape = data_.shape() ;
1227 Int nrow = nx_ * ny_ * npol_ ;
1228 tab.rwKeywordSet().define( "nPol", npol_ ) ;
1229 tab.addRow( nrow ) ;
1230 Vector<Double> cpix( 2 ) ;
1231 cpix(0) = Double( nx_ - 1 ) * 0.5 ;
1232 cpix(1) = Double( ny_ - 1 ) * 0.5 ;
1233 Vector<Double> dir( 2 ) ;
1234 ArrayColumn<Double> directionCol( tab, "DIRECTION" ) ;
1235 ArrayColumn<Float> spectraCol( tab, "SPECTRA" ) ;
1236 ScalarColumn<uInt> polnoCol( tab, "POLNO" ) ;
1237 Int irow = 0 ;
1238 Vector<Float> sp( nchan_ ) ;
1239 Bool bsp, bdata ;
1240 const Float *data_p = data_.getStorage( bdata ) ;
1241 Float *wsp_p, *sp_p ;
1242 const Float *wdata_p = data_p ;
1243 long step = nx_ * ny_ * npol_ ;
1244 long offset ;
1245 for ( Int iy = 0 ; iy < ny_ ; iy++ ) {
1246 dir(1) = center_(1) - ( cpix(1) - (Double)iy ) * celly_ ;
1247 for ( Int ix = 0 ; ix < nx_ ; ix++ ) {
1248 dir(0) = center_(0) - ( cpix(0) - (Double)ix ) * cellx_ ;
1249 for ( Int ipol = 0 ; ipol < npol_ ; ipol++ ) {
1250 offset = ix + iy * nx_ + ipol * nx_ * ny_ ;
1251 //os << "offset = " << offset << LogIO::POST ;
1252 sp_p = sp.getStorage( bsp ) ;
1253 wsp_p = sp_p ;
1254 wdata_p = data_p + offset ;
1255 for ( Int ichan = 0 ; ichan < nchan_ ; ichan++ ) {
1256 *wsp_p = *wdata_p ;
1257 wsp_p++ ;
1258 wdata_p += step ;
1259 }
1260 sp.putStorage( sp_p, bsp ) ;
1261 spectraCol.put( irow, sp ) ;
1262 directionCol.put( irow, dir ) ;
1263 polnoCol.put( irow, pollist_[ipol] ) ;
1264 irow++ ;
1265 }
1266 }
1267 }
1268 data_.freeStorage( data_p, bdata ) ;
1269
1270 t1 = mathutil::gettimeofday_sec() ;
1271 os << "saveData: elapsed time is " << t1-t0 << " sec." << LogIO::POST ;
1272
1273 return outfile_ ;
1274}
1275
1276void STGrid::prepareTable( Table &tab, String &name )
1277{
1278 Table t( infile_, Table::Old ) ;
1279 t.deepCopy( name, Table::New, False, t.endianFormat(), True ) ;
1280 tab = Table( name, Table::Update ) ;
1281}
1282
1283}
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