## 5.1 Grid snapping

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/PDF points (in LaTeX called

`bp`

), 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.