5.1 Grid snapping
is easy to explain. It simply means that the mouse
position is rounded to the nearest grid point. Grid points are points
whose coordinates are integer multiples of the grid size
, which can be
set in the box in the Snap
field. You have a choice from a set of
possible grid sizes. The units are Postscript points (in LaTeX called
), which are equal to 1/72 of an inch.
You can ask Ipe to show the grid points by selecting the function
Grid visible from the View menu. The same function turns
it off again.