2Lee D T, Schachter B J. Two algorithms for constructing a Delaunay triangulation [J]. International Journal of Computer and Information Sciences, 1980, 9(3): 219～242
3Dwyer R A. A faster divide-and-conquer algorithm for constructing Delaunay triangulations [J]. Algorithmica, 1987,2(2): 137～151
4Li Zhilin. Variation of the Accuracy of Digital Terrain Models with Sampling Interval[J]. Photogrammetric Record, 1992,14(79) : 113-128
5Gao J. Impact of Sampling Intervals on the Reliability of Topographic Variables Mapped from Grid
6龚健雅.整体SIS的数据组织与处理[M].武汉:武汉测绘科技大学出版社,1993
7Eklundh L, Martensson U. Rapid Generation of Digital Elevation Models from Topographic Maps[J]. International Journal of Geographical Information Systems,1995(9) :329-340
