Reference Guide > System Variables > !Order
  

!Order
Controls the orientation of images displayed using the TV routines and IMAGE_DISPLAY. When !Order is 0, images are displayed from bottom to top (i.e., the row with a 0 subscript is written on the bottom). Setting !Order to 1 displays images from top to bottom, turning the displayed image upside-down.
See also: TV, IMAGE_DISPLAY

Version 2017.0
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