Adjust the viewport so that the X and Y scales are the same
This command is a synonym for VIEWPORT ADJUST
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The value of the global parameter PONGO_XMIN is used. If PONGO_XMIN is not defined, the default value 0.0 is used.
The value of the global parameter PONGO_XMAX is used. If PONGO_XMAX is not defined, the default value 1.0 is used.
The value of the global parameter PONGO_YMIN is used. If PONGO_YMIN is not defined, the default value 0.0 is used.
The value of the global parameter PONGO_YMAX is used. If PONGO_YMIN is not defined, the default value 1.0 is used.