fbgrid — draw a grid on a frame buffer
is used to generate a grid on a frame buffer.
is used to select the display device (see
If this variable is not set, the default device for your system will
options can all be used in the normal way to specify the size of
the grid (see
The default grid size is 512x512.
The framebuffer can be declared with the
will clear the screen before drawing.
The available patterns are:
for binary spacing with lines at 8, 64, and 128 line intervals.
for decimal spacing with lines at 10, 50, and 100 line intervals
for the old cross grid pattern.
This software is Copyright (c) 1986-2016 by the United States Government as represented by U.S. Army Research Laboratory.