This option controls the ``aspect ratio'' of data displayed as images. By default all images will be displayed in their correct aspect ratio i.e. the size of the image will be proportional to the number of pixels in each dimension. An alternative way of thinking of this, is to say that the individual pixels are drawn as squares.
Sometimes, especially with images with highly differing numbers of pixels in their dimensions, it is preferable to not use the correct aspect ratio for display. The prompt:
AUTOMATIC CORRECT ASPECT RATIO IMAGE DISPLAY [YES]:
allows this to be controlled.
The following example sets the graphics system so as to not use the correct aspect ratio:
AUTOMATIC CORRECT ASPECT RATIO IMAGE DISPLAY [YES]:? Enter ``YES'' if you want image display with automatic correct aspect ratios i.e. the pixels are square. Enter ``NO'' to use all the available display region. This may result in non-square pixels, but may be preferable for very non-square images. AUTOMATIC CORRECT ASPECT RATIO IMAGE DISPLAY [YES]:n
If automatic correct aspect ratio is not set then the image will fill all the region which has currently be defined for it.
(The aspect ratio can also be controlled from the OPTIONS menu of the GUI.)