[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.
Gildas manager
2023-06-01