ObitSkyModelVMSquint.c File Reference

ObitSkyModelVMIon class function definitions. More...

#include "ObitTableCCUtil.h"
#include "ObitSkyModelVMSquint.h"
#include "ObitFFT.h"
#include "ObitUVUtil.h"
#include "ObitImageUtil.h"
#include "ObitPBUtil.h"
#include "ObitMem.h"
#include "ObitPrecess.h"
#include "ObitTableANUtil.h"
#include "ObitSkyGeom.h"

Defines
#define	VELIGHT   2.997924562e8
Functions
void	ObitSkyModelVMSquintFTDFT (ObitSkyModelVM *in, gint field, ObitUV *uvdata, ObitErr *err)
	Private: FT by DFT, may be overridden in derived class.
void	ObitSkyModelVMSquintInit (gpointer in)
	Private: Initialize newly instantiated object.
void	ObitSkyModelVMSquintClear (gpointer in)
	Private: Deallocate members.
void	ObitSkyModelVMSquintGetInput (ObitSkyModel *inn, ObitErr *err)
	Private: Get Inputs.
gfloat	BeamAngle (ObitImageDesc *in, gfloat x, gfloat y, gfloat offx, gfloat offy)
	Private: Get Angle from center of the beam.
ObitSkyModelVMSquint *	newObitSkyModelVMSquint (gchar *name)
	Public: Default Constructor.
gconstpointer	ObitSkyModelVMSquintGetClass (void)
	Public: ClassInfo pointer.
ObitSkyModelVMSquint *	ObitSkyModelVMSquintCopy (ObitSkyModelVMSquint *in, ObitSkyModelVMSquint *out, ObitErr *err)
	Public: Copy (deep) constructor.
ObitSkyModelVMSquint *	ObitSkyModelVMSquintCreate (gchar *name, ObitImageMosaic *mosaic)
	Public: Create/initialize ObitSkyModelVMSquint structures.
void	ObitSkyModelVMSquintInitMod (ObitSkyModel *inn, ObitUV *uvdata, ObitErr *err)
	Public: initialize ObitSkyModelVMSquint structures.
void	ObitSkyModelVMSquintShutDownMod (ObitSkyModel *inn, ObitUV *uvdata, ObitErr *err)
	Public: shutdown ObitSkyModel processes.
void	ObitSkyModelVMSquintInitModel (ObitSkyModel *inn, ObitErr *err)
	Initializes an ObitSkyModel for a pass through data in time order.
void	ObitSkyModelVMSquintUpdateModel (ObitSkyModelVM *inn, gfloat time, gint suba, ObitUV *uvdata, ObitErr *err)
	Public: Routine to update model.
void	ObitSkyModelVMSquintClassInit (void)
	Public: Class initializer.
void	ObitSkyModelVMSquintChose (ObitSkyModel *inn, ObitUV *uvdata)
	Private: Chose model type.

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Detailed Description

ObitSkyModelVMIon class function definitions.

This class is derived from the ObitSkyModelVM class

This class represents sky models incorporating beam squint corrections and their Fourier transforms.

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Define Documentation

#define VELIGHT   2.997924562e8

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Function Documentation

gfloat BeamAngle (  ObitImageDesc *  in, gfloat  x, gfloat  y, gfloat  offx, gfloat  offy )

Private: Get Angle from center of the beam. Parameters: in  Image descriptor x  X offset in deg from ref pixel in in This should be in the same system and equinox as in in. y  Y offset in deg from ref pixel in in err  Error stack, returns if not empty. Returns: angular distance on the sky (deg)

ObitSkyModelVMSquint* newObitSkyModelVMSquint (  gchar *  name  )

Public: Default Constructor. Initializes class if needed on first call. Parameters: name  An optional name for the object. Returns: the new object.

void ObitSkyModelVMSquintChose (  ObitSkyModel *  inn, ObitUV *  uvdata )

Private: Chose model type. Parameters: in  Pointer to the ObitSkyModel . uvdata  UV data set

void ObitSkyModelVMSquintClassInit (  void   )

Public: Class initializer.

void ObitSkyModelVMSquintClear (  gpointer  inn  )

Private: Deallocate members. Does (recursive) deallocation of parent class members. For some reason this wasn't build into the GType class. Parameters: inn  Pointer to the object to deallocate. Actually it should be an ObitSkyModelVMSquint* cast to an Obit*.

ObitSkyModelVMSquint* ObitSkyModelVMSquintCopy (  ObitSkyModelVMSquint *  in, ObitSkyModelVMSquint *  out, ObitErr *  err )

Public: Copy (deep) constructor. Parameters: in  The object to copy out  An existing object pointer for output or NULL if none exists. err  Obit error stack object. Returns: pointer to the new object.

ObitSkyModelVMSquint* ObitSkyModelVMSquintCreate (  gchar *  name, ObitImageMosaic *  mosaic )

Public: Create/initialize ObitSkyModelVMSquint structures. Parameters: name  An optional name for the object. mosaic  ObitImageMosaic giving one or more images/CC tables Returns: the new object.

void ObitSkyModelVMSquintFTDFT (  ObitSkyModelVM *  inn, gint  field, ObitUV *  uvdata, ObitErr *  err )

Private: FT by DFT, may be overridden in derived class. Version for time/spatial dependent effects. If doDivide member is true then FT of model is divided into the data, If doReplace member is true then FT of model replaces the data, else, it is subtracted. If doFlip member is true the Fourier transform is multiplied by sqrt(-1) (for Stokes RL and LR) This function may be overridden in a derived class and should always be called by its function pointer. Method assumes same correction to all antennas. After the AIPSish QXXPTS, QPTDIV and friends Parameters: in  SkyModelVM with model components loaded (ObitSkyModelLoad) field  Field number being processed (-1 => all) uvdata  UV data set to model and subtract from current buffer err  Obit error stack object. Returns: return code, OBIT_IO_OK=> OK

gconstpointer ObitSkyModelVMSquintGetClass (  void   )

Public: ClassInfo pointer. Returns: pointer to the class structure.

void ObitSkyModelVMSquintGetInput (  ObitSkyModel *  inn, ObitErr *  err )

Private: Get Inputs. If any image has an info item "maxAbsResid" the the maximum of any of these is used, else the MAX (fabs(minval), fabs(maxval)) is used. Parameters: in  Pointer to the ObitSkyModelVMSquint . err  Obit error stack object.

void ObitSkyModelVMSquintInit (  gpointer  inn  )

Private: Initialize newly instantiated object. Parent classes portions are (recursively) initialized first Parameters: inn  Pointer to the object to initialize.

void ObitSkyModelVMSquintInitMod (  ObitSkyModel *  inn, ObitUV *  uvdata, ObitErr *  err )

Public: initialize ObitSkyModelVMSquint structures. Parameters: in  SkyModel to initialize uvdata  uv data being modeled. err  Obit error stack object.

void ObitSkyModelVMSquintInitModel (  ObitSkyModel *  inn, ObitErr *  err )

Initializes an ObitSkyModel for a pass through data in time order. Resets current times Parameters: in  SkyModel to initialize err  Obit error stack object.

void ObitSkyModelVMSquintShutDownMod (  ObitSkyModel *  inn, ObitUV *  uvdata, ObitErr *  err )

Public: shutdown ObitSkyModel processes. Parameters: in  SkyModel to shutdown uvdata  uv data being modeled. err  Obit error stack object.

void ObitSkyModelVMSquintUpdateModel (  ObitSkyModelVM *  inn, gfloat  time, gint  suba, ObitUV *  uvdata, ObitErr *  err )

Public: Routine to update model. Parameters: in  SkyModelVM time  current time (d) suba  0-rel subarray number uvdata  uv data being modeled. err  Obit error stack object.

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