摘要
本文重点介绍了由航测数字化成图采集的等高线、高程点在Civil 3D平台上创建三角网曲面的过程,以及提高曲面整体精度的方法,通过Civil 3D建立地形曲面,较好地解决了航测数字化成图中"对等倾斜地形"内插首曲线、等高线与高程点点线矛盾检查以及质检过程中成图精度统计等问题,为今后类似工作提供了可以借鉴的实用方法。
In the paper, creation process of triangulation network surface on Civil 3 D platformmade by contour line and elevation point collected by aerophotogrammetry digitizing map is mainly introduced as well as the approach to improve the overall accuracy of surface. Civil 3 D is used to establish terrain surface to better solve problems including interpolating intermediate contour in 'equally sloping terrain' in aerophotogrammetry digitizing map, dot and line contradiction check and mapping precision statistics in the process of quality testing. It provides practical method for reference for similar work in future.
出处
《电力勘测设计》
2017年第S1期250-253,共4页
Electric Power Survey & Design
关键词
CIVIL
3D
曲面
航测数字化成图
内插首曲线
点线矛盾
Civil 3D
curved surface
aerophotogrammetry digitizing map
interpolating intermediate contour
dot and line contradiction
