1.1.3.0 coordsys.subimage

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coordsys.subimage - Function

1.1.3 delivers a coordinate origin re-referenced for a subimage

Description

You can convert a Coordinate System to another coordinatesystem applicable to a subImage. The newshape does not matter as this is the coordinatesystem not the image except for Stokes axis; therefore you can ignore newshape except when your sub-image you are considering has only a section of your original Stokes axis.

Arguments


Inputs
originshft	The shift value from original reference (vector of values in pixels)
	allowed:	any
	Default:	variant
newshape	The new shape of the image it will applicable to (pixel shape)
	allowed:	intArray
	Default:

Returns
record

Example

"""
#
print "\t----\t subimage Ex 1 \t----"
ia.open(’original.image’)
csys = ia.coordsys()
imshape=ia.shape()
#want to make an empty sub image of the 11th channel
#keeping other reference pixel as is
refshft=[0,0,0,10]
subcoordsysrec=csys.subimage(neworigin=refshft)
imshape[3]=1
ia.fromshape(outfile=’Eleventh_chan_template.image’, shape=imshape, csys=subcoordsysrec)

"""

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