A vector based buffer construction partly based on the method supposed by Dong et al. 2003.
References:
Dong, P, Yang, C., Rui, X., Zhang, L., Cheng, Q. (2003): 'An effective buffer generation method in GIS'. Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International, Vol.6, p.3706-3708.
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