handle
- copy — copy a graphics entity.
 
- delete — delete  a graphic entity and its children.
 
- gce — Get current entity handle.
 
- ged — Scilab Graphic Editor
 
- glue — glue a set of graphics entities into an Compound.
 
- is_handle_valid — Check whether a set of graphic handles is still valid.
 
- swap_handles — Permute two handles in the graphic
            Hierarchy.
 
- unglue — unglue a compound object and replace it by individual children.