一种基于曲线拟合和内插的面状要素采集方法及实现
A method and its implementation of polygon feature collection based on curve fitting and interpolation
王国玺 1吕慧玲 1张涛 1曹西锋1
作者信息
- 1. 自然资源部第一航测遥感院,陕西西安 710054
- 折叠
摘要
地理信息矢量数据的快速编辑是基础测绘工作的重要组成部分,传统面状要素的采集主要是根据影像变化沿着边界全部采集,效率较低,步骤也相对烦琐.针对面状要素采集存在的问题,本文提出了一种基于直线方程的采集方法,在道路、河流、沟渠等面状要素的采集过程中,只需要采集一条边界,另一条边界可基于曲线拟合和内插方法计算得到,通过动态修改路宽和多种拓扑方法,能更加高效、便捷地采集面状要素.该方法可节约劳动成本,将采集效率提升2倍以上,目前已被多家测绘单位使用.
Abstract
Rapid editing of basic geographic information vector data is an important part of basic surveying and mapping.The traditional collection of polygon feature is mainly based on the image changes along the boundary,it is inefficient and relatively cumbersome.For the problems above,a collection method based on the straight line equation is proposed in this paper,and only one boundary needs to be collected,and the other boundary can be calculated based on the method of the curve fitting and interpolation when col-lecting polygon features such as roads,rivers,ditches,etc..By dynamically modifying the road width and various topology methods,it is possible to collect features more efficiently and conveniently,and the labor cost is saved,and the collection efficiency is more than doubled.This method has been promoted to many surveying and mapping agencies.
关键词
地表覆盖/面状要素/高效编辑/曲线拟合/曲线内插Key words
land cover/polygon feature/efficient editing/curve fitting/curve interpolation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据