imagerpositiontest.set_imaging_parms

Set the parameters to be used for imaging.

Synopsis set_imaging_parms(nx, ny, cellx, celly, stokes, doshift, phasecenter, shiftx, shifty, mode, nchan, start, step, facets)

Description Set the parameters to be used for imaging. These parameters are passed to (p)imager.setimage() by make_image(). For the most part, you don't have to call this function unless you want to explicitly set some parameters; the correct thing will be done otherwise.

Arguments

`nx`	Number of pixels in the x direction.
	`Allowed:`	`Integer > 0`
	`Default:`	`Unset. (determined by (p)imager.advise())`
`ny`	Number of pixels in the y direction.
	`Allowed:`	`Integer > 0`
	`Default:`	`Unset. (determined by (p)imager.advise())`
`cellx`	Cell size in the x direction
	`Allowed:`	`Qunatity (angle)`
	`Default:`	`Unset. (determined by (p)imager.advise())`
`celly`	Cell size in the y direction
	`Allowed:`	`Qunatity (angle)`
	`Default:`	`Unset. (determined by (p)imager.advise())`
`stokes`	Stokes parameters to image
	`Allowed:`	`String: 'I'\|'IV'\|'IQU'\|'IQUV'`
	`Default:`	`Unset (will be set to 'I')`
`doshift`	Use the specified phase center?
	`Allowed:`	`Boolean`
	`Default:`	`Unset (will be set according to if the test is for a single field or multiple fields`
`phasecenter`	Direction of phase center as a measure
	`Allowed:`	`MDirection`
	`Default:`	`Unset (will be set if the the test is multi field)`
`shiftx`	Shift in x
	`Allowed:`	`Quantity (angle)`
	`Default:`	`'0arcsec'`
`shifty`	Shift in y
	`Allowed:`	`Quantity (angle)`
	`Default:`	`'0arcsec'`
`mode`	Type of processing
	`Allowed:`	`String: 'mfs'\|'channel'\|'velocity'`
	`Default:`	`'channel'`
`nchan`	Number of channels
	`Allowed:`	`Integer > 0`
	`Default:`	`Unset (will use number of channels in the simulated data set)`
`start`	Starting channel
	`Allowed:`	`0 > Integer >= number of channels in data set`
	`Default:`	`1`
`step`	Step in channels
	`Allowed:`	`Integer > 0`
	`Default:`	`1`
`facets`	Number of facets on each axis
	`Allowed:`	`Integer > 0`
	`Default:`	`Unset (determined by (p)imager.advise())`

Returns T

Example

- include 'imagerpositiontest.g';
- ipt := imagerpositiontest();
# set up a single field mem test and shift the phase center
- ipt.set_deconvolution_function('mem');
- ipt.set_sim_parms(nfields=1);
- ipt.set_mem_parms(algorithm='entropy',niter=25,sigma='0.1Jy');
- ipt.set_imaging_parms(shiftx='20arcsec',shifty='-10arcsec');
T
- ipt.dotests();

Next: imagerpositiontest.set_imaging_tool_type - Function Up: imagerpositiontest - Tool Previous: imagerpositiontest.set_imaging_options - Function Contents Index

	`Package`	`synthesis`
	`Module`	`synthesistester`
	`Tool`	`imagerpositiontest`

imagerpositiontest.set_imaging_parms - Function