|5.3 Custom grid snapping|
Sometimes you need a special grid, for instance a triangular grid, or a grid for making perspective drawings. Since Ipe cannot offer every possible grid under the sun, it instead offers you snapping to custom grids.
To use custom grid snapping, create a layer with name GRID, and draw your grid in this layer. You can then snap to the intersection points between the objects in the GRID layer. It does not matter if the layer is visible or not.
The grid maker ipelet offers a few ready-made grids to be used as custom grids.