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Guangyang Zhu, Jun Li, Jiangjiang Wu, Mengyu Ma, Li Wang and Ning Jing
Viewshed analysis is of great interest to location optimization, environmental planning, ecology and tourism. There have been plenty of viewshed analysis methods which are generally time-consuming and among these methods, the XDraw algorithm is one of th...
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Mengyu Ma, Ye Wu, Wenze Luo, Luo Chen, Jun Li and Ning Jing
Buffer analysis, a fundamental function in a geographic information system (GIS), identifies areas by the surrounding geographic features within a given distance. Real-time buffer analysis for large-scale spatial data remains a challenging problem since ...
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