【摘要】 以折线作为分割线对多边形和折线进行分割这在图形处理中很常见 ,但是MapInfo自带的折线分割没有定义而且在对复杂的图形处理时会出现错误。本文提出了一种实现折线分割的方法 ,解决了复杂图形的分割问题 ,对比MapInfo系统自带的工具 ,阐述了自己方案的特点。此外 ,还把此方法实现的步骤结合代码进行说明 ,证实了这种方法的可行性。更多还原

【Abstract】 It is very common to use a polyline as cookie cutter to split regions and polylines, however the tools of MapInfo wasn’t defined and errors always occur when using these tools to handle some maps. In this paper the author brings forward a new method which can split regions by a polyline as cookie cutter. Compared to the tools which the MapInfo offers, the paper analyzes the characters, advantages and shortcomings of this method. Besides, some codes were put forward to illuminate how to put it into practice, which also prove this method is effective.更多还原