关键词: 构形, 轴线提取, 轴线图, 所有线图, 空间句法

Abstract: Space division is an important prerequisite for space syntax analysis, and as one of its basic methods —the axial division is widely used in the analysis of complex space. However, in traditional analysis process, the axis’s drawing procedure’s efficiency is low and axis’s generating standard is uncertain. Based on the classic definition of the axial map with constraint, this paper proposes an axis extraction method. Firstly, this method extracts the configuration’s contour information to generate the original point set, then generates the all-line set based on constraints and conditions.  Moreover, it constructs the all-line-map intersect line sets after the category analysis for all-line-map. Finally, by eliminating the redundant lines according to the intersect line sets’ inclusion relations, the axial map can be got. Experimental results show that this method can generate the axial map quickly and efficiently. Compared to the traditional hand drawing procedure, this method ensures the uniqueness of the generate results under the premise that the results shall be in line with people’s cognitive habits. It can also improve the space syntax analysis efficiency for complex space with broad application prospects.

Key words: configuration, axis extraction, axial map, all-line-map, space syntax