READ /PLANES
Keywords: imager

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READ /PLANES

            [CLEAN\]READ Buffer File /PLANES Min Max

        Read  only the last axis "planes" between the  First and Last implied by
        Min and Max. For an LMV-ordered cube, this would be equivalent to
              READ Buffer File /RANGE Min Max CHANNEL
        However, for transposed data cubes, VML or LVM-ordered for example, this
        is  not  true  at  all when a Frequency/Velocity axis is present: /RANGE
        would specify a subset of this(yet) axis, while /PLANES always  indicate
        a subset of the 3rd axis of the cube.

        Min  and  Max  indicate  offsets  from  Plane 1 and the number of planes
        Nplane.  Thus Max can be negative: it then indicates Last =  Nplane-Max.
        Also Min=0 and Max=0 implies loading all the channels.