This filter is found in
It renders a Cartesian grid in the active layer, on top of the existing
contents. The width, spacing, offsets, and colors of the grid lines can
all be set by the user. By default, the lines are with the
Gimp's foreground color. (Note: this plugin
was used to create demonstration images for many of the other plugins.)
If you set the grid line widths to 0, then only the intersections
will be drawn, as plus-marks.
There are separate options for controlling the horizontal grid
lines, vertical grid lines, and intersections. By default, the
horizontal and vertical settings are locked together, so that
all changes are applied symmetrically. If you want to change
just one of them, click on the "chain" symbol below it to unlock
them. The results of changing the "intersection" parameters are
Besides, for some options, you can select the unit of measurement
thanks to a drop-down list.
Sets the widths of the horizontal or vertical grid
lines, or of the symbols drawn at their intersections.
Sets the distance between grid lines.
Intersection parameter sets the distance
from the actual intersection point for the starting points of the
line segments that represent the intersection, at center of
Sets the offset for grid lines with respect to the upper left
corner. For intersections, sets the distance from the intersection
point to the ending points of the line segments that are drawn.
These allow you to set the colors of the grid lines and