等高线邻接关系的表达及应用研究

针对当前等高线数据质量控制的问题和不足,提出根据相邻等高线的高程递变规律,利用等高线的邻接关系进行质量检查的设想,进而根据2维平面中Voronoi图的概念,将之应用于等高线数据,提出等高线邻接关系的定义,并设计出等高线邻接关系的基本生成流程,生成等高线的邻接关系表.此外,提出等高线邻接程度的衡量及应用问题,讲述邻接系数的定义、计算及应用.

The Study of Description and Application of Contour Adjacency Relationship

Present researches and applications in contours quality control, and bring elevation values recursion rules according to nearest elevations based on problems and shortages of researches. The idea of utilizing contours adjacency relationship to process quality check-up, and then according to Voronoi polygon conception of two dimensional point objects, and extend it to line objects, so as to apply to contour data. Based on it, the definition of contour adjacency is brought, and basic contour adjacency relationship processing flow, as well as contour adjacency relationship table was designed. Furthermore, how to evaluate extents of contour adjacency and the meaning,definition,calculation of adjacency coefficient are also being concerned.