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在地理信息系统(GIS)中,为了使地图线状要素数据的可视化有较高的质量,就需要对线状要素进行光滑处理。如何使得折线光滑后,让原始点更多地保留下来,是衡量该类地图数据精度的重要依据。本文提出了一种折线光滑处理的三点算法,该方法拟合精度高且算法简单,具有较强的实用性,可用于自动化制图、GIS等地图线状要素的绘制中。 更多还原

【Abstract】 In order to achieve high quality in visualization of linear features in geographic information system(GIS),linear feature smoothing becomes necessary.One important measurement of map data precision is the number of original points of linear feature retained after smoothing.This paper puts forward three-point algorithm for linear feature smoothing,which is highly precise in resulting maps and simple to understand.This method is highly practical and can be used in automated mapping and the drawing...