A method and its implementation of polygon feature collection based on curve fitting and interpolation
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.
land coverpolygon featureefficient editingcurve fittingcurve interpolation
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