Comment 1 for bug 788178

Same could be asked for other from/to snap targets, like
- "Snap from and to centers of objects"
- "Snap from and to an item's rotation center"
- "Snap from and to midpoints of line segments"
- …

Closing as 'Won't Fix' - please see Diederik van Lierop's answer (comment #11) in the discussion of bug #731141 <https://bugs.launchpad.net/inkscape/+bug/731141> for the reasons:

<quote>
 > Actually there's no way to ask Inkscape to snap only
 > objects' (rotation) centers

Correct; it would be impossible to provide options for controlling each combination of snap source and snap target individually. It would probably require a 30x30 matrix of radio buttons ;-). Therefore some choices had to be made, and as a consequence you cannot distinguish between all of the various snap sources. So you will have to turn on "snap to/from rotation center", and turn on "snap nodes", which will include all smooth and cusp nodes, all special points such as corners of a (rounded) rectangle and center of arcs, etc.
</quote>