ichnography
n. நிலப்படம், நிலப்படங்கள் வரையும் கலை.
Ich*nog"ra*phy, n. Etym: [Gr. ichonographie.] (Drawing) Defn: A horizontal section of a building or other object, showing its true dimensions according to a geometric scale; a ground plan; a map; also, the art of making such plans.