【摘要】 该文分析了GIS中矢量线状符号的特点与基本构成,提出了一种高效且通用的矢量线状符号的填充算法。该算法通过对构成矢量线状符号的几何图元进行旋转、变形、裁减等处理,可以实现对各种线状符号的填充,大大提高了算法的通用性和绘制效率。更多还原

【Abstract】 This paper makes an analysis of the characteristics of vector linear symbol and its basic components in GIS field,and puts forward a general filling algorithm.This algorithm can implement all kind of linear symbols by using rotation,deformation,and clipping process on geometric graphic elements of vector linear symbol.The experiments show that it works well and has higher drawing quality and efficiency.更多还原