带圆弧多段线转普通多段线算法设计与实现

针对AutoCAD中带圆弧多段线表示的地物转换到GIS数据库中表达成错误圆弧的情况,设计了带圆弧多段线转普通多段线算法,利用CAD自带的二次开发环境,在保持原有地物特征及属性的前提下,实现了带圆弧多段线表示地物转普通多段线表示地物的目标,使其满足了GIS数据库入库要求,通过对比实验,验证了算法的有效性和正确性。

Design and Implementation of Algorithm for Converting Polyline with Arcs to Ordinary Polyline

In view of the situation that the feature represented by the polyline with arcs in AutoCAD is converted into the wrong arcs in the GIS database,an algorithm of converting the polyline with arcs to the ordinary polyline is designed.Using the secondary development environment of CAD,on the premise of maintaining the original features and attributes,the goal of converting the features represented by the polyline with arcs to the features represented by the ordinary polyline is realized,which meets the data loader of the GIS database.The validity and correctness of the algorithm are verified by comparative experiments.