【摘要】 在地理信息系统应用开发中进行矢量图形显示时,为加快显示速度和受显示范围的限制,通常要采用一定的区域剪裁方法进行处理。本文提出一种基于圆形区域的剪裁方法,该方法比基于矩形区域的剪裁在算法上更为简洁,同时也具有较高的执行效率。更多还原

【Abstract】 In order to accelerate operation speed and limited by data range,the method of region clip-ping is frequently used in displaying vector graph is GIS application development.In this paper,the au-thor put forward a clipping method based on circle region,it is more concise than the method based on rectangle region and the process efficiency is considerably high.更多还原