1.2.1.0 componentlist.sample

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componentlist.sample - Function

1.2.1 Sample the flux of the list in a specified direction. (Not implemented yet)

Description

The sample function returns a vector containing the flux in Janskys/pixel of all the components in the list, in the specified direction, at the specified frequency. The returned vector always contains four elements corresponding to the Stokes parameters I,~Q,~U,~V.

Arguments


Inputs
direction	The direction to sample any valid direction measure. A valid Direction measure or vector of string or string, e.g me.direction(’J2000’,’19h30m00’, ’-20d00m00’) or [’J2000’,’19h30m00’, ’-20d00m00’] or ’J2000 19h30m00 -20d00m00’
	allowed:	any
	Default:	J2000 00h00m00.00 90d00m00.0
pixellatsize	the x-size of the in pixels to use when sampling any quantity that has angular units.
	allowed:	any
	Default:	0.0deg
pixellongsize	the y-size of the in pixels to use when sampling any quantity that has angular units.
	allowed:	any
	Default:	0.0deg
frequency	The frequency to sample at Any frequency measure
	allowed:	any
	Default:	1.4GHz

Returns
doubleArray

Example

      include ’componentlist.g’
      include ’measures.g’
      cl := componentlist(’crux.cl’, readonly=T);
      dir := dm.direction(’J2000’, ’12h26m35.9’, ’-63d5m56’);
      pixelsize := dm.quantity(’1arcsec’);
      flux := cl.sample(dir, pixelsize);

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