Undraw()

Undraw a primitive graphics operation.

UNDRAW [item=Gobject] Temporarily remove a graphics primitive

example:

	>> Draw/Text 0.5 0.4 "Special data point"
	# oops, too far to the right!
	>> Undraw
	>> Draw/Text 0.4 0.4 "Special data point"

Note: See Obj(), Win() and Pic() commands for specifying objects.

Undraw

Undraw allows a temporary removal of a graphics item; either a primitive object, window or picture. Normally it is used interactively when annotating a plot as a means of undoing some annotation which was inappropriate. An undrawn item remains in the display list and can be redrawn if desired with the Redraw() command. If somthing is undrawn by mistake, it can be redrawn using the Redraw() command.

Parameters:

item (Gobject) [ default = last graphical object drawn ]

This parameter specifies the the primitive to remove. Objects can be refererred to either by an object reference saved when the object was created or by one of the object locating functions Pic(), Win(), Obj().