FUNDAMENTAL STUDY OF ACTIVITY CONTOUR : THE EXTENSION TO THREE DIMENSIONAL SPACE OF R (RIDGE) AND APPLICATION METHOD : Part 1 Logical structure
SATORU ASHIKAWA · Transactions of the Architectural Institute of Japan · 1979
This paper is depend upon the fundamental study of "Activity Contour". In this report, "R^f" is defined from the viewpoint of the quality of water flowing on the curved surface of activity contour. "R^f" is the structural concept of ordinary contour surface. The concept of "R^f" is stand on the concept of "R" (Ridge) which is the structural concept of closed curve. In this report, as part 1, the definition of "R^f" is explained as the extension to three dimensional space of the concept of "R".