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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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