In the published drawings, lines representing views and the fields of visions from the major points in a garden are indicated, and he added tsuboniwa (a small garden made between buildings or as a part of a building) and gakeniwa (a garden on a cliff) to the three conventional demarcation of Japanese gardens, namely Tsukiyama (artificial hill), Hiraniwa (plain garden), roji, and cited Nageire-do of the Sanbutsu-ji Temple as a typical example of gakeniwa.
掲載された図面には園内要所からの眺望視界線が記入されているほか日本庭園の分類を従来の築山、平庭、露地の3つに壷庭と崖庭を加えていて、崖庭の好例として三仏寺投入堂を挙げている。