ObitUVCalSelect.h File Reference

ObitUVCal utilities for selecting data and translating Stokes. More...

#include "Obit.h"
#include "ObitErr.h"
#include "ObitThread.h"
#include "ObitInfoList.h"
#include "ObitUVDesc.h"
#include "ObitUVSel.h"
#include "ObitUVCal.h"

Go to the source code of this file.

Functions
void	ObitUVCalSelectInit (ObitUVCal *in, ObitUVSel *sel, ObitUVDesc *inDesc, ObitUVDesc *outDesc, ObitErr *err)
	Public: Init data selection.
gboolean	ObitUVCalSelect (ObitUVCal *in, gfloat *visIn, gfloat *RP, gfloat *visOut, ObitErr *err)
	Public: translate/select data.

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Detailed Description

ObitUVCal utilities for selecting data and translating Stokes.

This is implemented as utility routines and a separate Structure definition to avoid circular definitions. The ObitUVCal must be visible here but the structure needed for this calibration is a member of the ObitUVCal. If it were implemented as an Obit class this would lead to a circular definition which c cannot deal with.

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Function Documentation

gboolean ObitUVCalSelect (  ObitUVCal *  in, gfloat *  RP, gfloat *  visIn, gfloat *  visOut, ObitErr *  err )

Public: translate/select data. U, V, W scales if selecting in IF. Parameters: in  Calibration Object. mySel->transPol if TRUE translate stokes mySel->bothCorr if TRUE all data needed in combination jadr (0-rel) indices to the first and second visibility input records to be used in the output record. If jadr(1,n) is negative (Stokes U from RL,LR) use abs(jadr(1,n)) and multiply the visibility by i (=sqrt(-1)). If jadr(2,n) < 0, (RL,LR from Q,U) use abs and construct (1) + i*(2) selFact Factors to be multiplied by the first and second input vis's to make the output vis. RP  Random parameters array. visIn  input visibility as an array of floats visOut  output visibility as an array of floats err  ObitError stack. Returns: TRUE if at least some data is valid

void ObitUVCalSelectInit (  ObitUVCal *  in, ObitUVSel *  sel, ObitUVDesc *  inDesc, ObitUVDesc *  outDesc, ObitErr *  err )

Public: Init data selection. Output descriptor modified to reflect data selection. Stokes 'F' = formal I (both RR+LL or XX+YY needed) On output data are ordered Stokes, Freq, IF if Stokes translation Adapted from the AIPSish DGINIT.FOR. Parameters: in  Object to initialize. mySel->transPol if TRUE translate stokes mySel->bothCorr if TRUE all data needed in combination jadr (0-rel) indices to the first and second visibility input records to be used in the output record. If jadr(1,n) is negative (Stokes U from RL,LR) use abs(jadr(1,n)) and multiply the visibility by i (=sqrt(-1)). If jadr(2,n) < 0, (RL,LR from Q,U) use abs and construct (1) + i*(2) selFact Factors to be multiplied by the first and second input vis's to make the output vis. sel  Data selector. inDesc  Input data descriptor. outDesc  Output data descriptor (after transformations/selection). err  ObitError stack.

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