Snapping objects to the grid can be quite frustrating because there seem to
be multiple points in an object that are used to snap to the grid (four
corners of bounding box?) and those snapping points many times aren't what
you want to snap to.
The proposal here would work similar to the previous glue point request.
Both are snapping mechanisms and both should be hierarchical (lower level
snap points in a group/stencil shouldn't be used to snap the
group/stencil). Glue points may cause objects to snap to each others glue
points. Snap points may cause objects to snap an object to the grid.
I think defining one snap point for an object should be sufficient, but I
guess you could define more. In doing this, you should also be able to
override/remove any default snapping points (extra snapping points just
make it harder to snap the way you want).
For rotating objects, it would also be nice to be able to define at what
points the angle should be snapped. I guess you'd need the origin to
rotate about and a point to do the rotation and possibly snap to specific
angular increments.
Originator: YES
I'm reducing the priority by one because there is a partial workaround.
It would be to wrap an invisible box around the object such that all 4
corners of the box and the point you want to snap to are on grid. This
solution may break down after/during rotation/