关键词: 数字地形图, 等高线, 高程点, 点线不符, C#

Abstract: This paper discusses the possible causes of the elevation point and contour errors in digital topographic map, analyzes the spatial location relationship and the mathematical relationship of the elevation point and contour in the topographic map, with the mathematical relationship working as a judgment condition. It discusses the solutions and judgment rules, and shows the realization of finding out its mistakes'core codes through computer program. This research is very meaningful to reduce the labor intensity of inspection personnel while checking elevation point and contour errors in the digital topographic map so as to improve the working efficiency.

Key words: digital topographic map, contour, elevation point, no conformation between the point and line, C#