A justified plan graph analysis for identifying the genotype of Tibetan houses in Ganzi County

Abstract A significant number of traditional houses remain in Tibetan-populated areas of western China, such as Ganzi County, which has an average altitude of more than 3,000 meters. In this study, eight houses from different historical periods in Ganzi County were analyzed by using the justified plan graph (JPG) method. Through a combination of graphical and mathematical analysis, this study identifies the spatial genotypes of these houses and analyzes the connectivity patterns and privacy of each space in the houses. This paper attempts to reveal the socio-cultural logic implicit in the houses from a scientific perspective and to provide a reliable framework for future design of post-disaster reconstruction or rehabilitation in this area.