copy — copy a graphics entity.
copy(h) copy(h,h_axes) h_copy=copy(h)
a handle, the handle of the entity to copy.
a handle, the handle of the parent entity for the destination. It should be an axes entity.
a handle, the handle on the entity copied.
This routine can be used to make a copy of a graphics entity with
all its propeties'values, it returns the handle on this new
entity.
h_axes
omitted, graphics entity is cloned and it's
copied in the same parent axes entity.