To analyze the different locations of the intersection of a ray and a polygon quickly, a scheme of calculating the number for the intersection point is established based on the structure query language (SQL) and the method of weighting each side of the po
To analyze the different locations of the intersection of a ray and a polygon quickly, a scheme of calculating the number for the intersection point is established based on the structure query language (SQL) and the method of weighting each side of the po
摘要采用对多边形各边赋权值的方法，分析射线与多边形相交的不同情况，给出了使用结构化查询语言实现交点个数求解的快速解决方案。