How can I mirror an object relative to a chosen point, in 3D space? So all of Blender's mirror functions are axis mirroring.

I only know point mirroring / point reflexion from math in 2D. In 2D it's equal to a rotation of 180° around a chosen point.

Is there any way to do it in blender in 3D? Is point reflexion even possible in 3D?

EDIT: After putting more thought into this, it seems I'd need to mirror each point on the closest point on a surface similar to the object itself. 

EDIT2: I played around with some python and vector math, but the results where horrible, so to say. It seems that this is not (easily) possible, except when splitting the mesh into several objects.

Top: standard mirroring

Bottom: Imagined point reflexion (made manually)
Blender allows you to manipulate center points instead of the whole objects.

Set Manipulate Center Points, then mirror the objects: the geometry will not change.

CAVEAT: Since it will manipulate individual origins, you have to separate all the components of your model before mirroring.



If you want to "reverse" the order of the object, set Pivot Center to Bounding Box Center, then mirror the objects along the desired axis.





Shortcuts for these examples

Toggle Manipulate Center Points: Alt + ,

Set Pivot Center to Bounding Box Center : ,

Set Pivot Center to 3D Cursor : .

Mirror along X-Axis: Ctrl + M, X