Selects the item just after the one given by tagOrId in the display list.
Selects all the items in the canvas.
Selects the item just before the one given by tagOrId in the display list.
closestxy [halo] [start]
Select the topmost, closest item to @x,y that is below start in
the display list. Any item closer than halo to the point is
considered to overlap it.
enclosedx1 y1 x2 y2
Selects all the items completely enclosed within x1 y1 x2 y2.
overlappingx1 y1 x2 y2
Selects all the items that overlap or are enclosed within x1 y1 x2 y2.
Selects all the items given by tagOrId.