WHOLE CHARACTER
图tú
picture; drawing (图画, 图案); map (地图); plan; scheme (宏图); to scheme; to seek (图利)
图 is a picture — a drawing, a map, or a plan you seek.
ZDIC says the formation was originally 会意 for the older 圖; the modern enclosed form is shown as pieces without an expanded story.
ENCLOSURE FRAME (THE RADICAL 囗)
囗wéi
enclosure
Marks an enclosed area or bounded idea; not a normal standalone word.
In 图: enclosure frame (the radical 囗) ZDIC lists 囗 as the radical, framing the character.
INNER PIECE (冬, WINTER)
冬dōng
winter
A standalone character; in 图 it is the inner piece with no claimed role.
In 图: inner piece (冬, winter) Shown as the inner piece; its standalone meaning is not claimed here.