[ADVANCED\]MAP_POLAR GenericBegin [GenericEnd] [/BACKGROUND Type Min
Max] /STEP Step [Xfirst Yfirst]
Specify the Step in pixels between adjacent display of polarization vec-
tors. If not specified, or if 0, Step is empirically derived from the
angular resolution.
Xfirst and Yfirst indicate the starting pixel along the X and Y axis re-
spectively, allowing a controlled centering of the vector distribution
on the background image.
Type, Min, and Max, like Step, Xfirst, Yfirst are "sticky" (remanent):
they keep the previous value until a new one is specified, or are reset
to their default values by use of the /COMPUTE option. Default is 0 for
Step, 1 for Xfirst and Yfirst.
Gildas manager
2023-06-01