界画

界画	jiè huà	accurate depiction of architectural forms with the aid of a ruler (technique of Chinese art) / picture created using this technique
界	jiè	(bound form) boundary; border / (bound form) realm
画	huà	to draw; to paint / picture; painting (CL:幅,张) / to draw (a line) (variant of 划) / stroke of a Chinese character (variant of 划) / (calligraphy) horizontal stroke (variant of 划)