|  |  |  | Central Symmetry | 
 
Create the image of an object by a central symmetry. The user selects the object to transform and the centre of its symmetry (a point). When the user wants to construct the image of a point, s/he must first select it (with the mouse). The transformation will then be performed on this point.
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  the DR. GEOmailing list.|  |  |  | Central Symmetry |