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- W2393269497 abstract "Aiming at the low computation efficiency and storage insufficiency of direct-encoded raster data,a new data structure on the basis of run-length encoding has been proposed to optimize the algebraic operations.The realization ofintersectionis introduced;moreover,all kinds of algebraic operations on the run-length's attribute are performed during the realization process.Adopting thisintersectionoperation to implement polygon overlay,the steps are as follows:firstly,convert the polygons on two different layers into run-length sets,and then intersect the run-length set of the base layer with the run-lengths of the adding layer;afterwards,extract the required run-length units according to different overlay modes;finally,vectiorize the run-lengths into polygons." @default.
- W2393269497 created "2016-06-24" @default.
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- W2393269497 date "2009-01-01" @default.
- W2393269497 modified "2023-09-23" @default.
- W2393269497 title "Polygon overlay operation using run-length encoding" @default.
- W2393269497 hasPublicationYear "2009" @default.
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