Using Secondary Development of AutoCAD to Automatically Find Errors of Elevation Points and Contour Lines in Digital Topographic Map

doi:10.13474/j.cnki.11-2246.2017.0164

Abstract

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#

CLC Number:

P208

LIU Hong, HUANG Junsheng. Using Secondary Development of AutoCAD to Automatically Find Errors of Elevation Points and Contour Lines in Digital Topographic Map[J]. 测绘通报, 2017, 0(5): 100-104.

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Using Secondary Development of AutoCAD to Automatically Find Errors of Elevation Points and Contour Lines in Digital Topographic Map

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