【摘要】 Web网站中存在种类繁多的地理信息,但由于格式、用户权限等限制,用户多数只能浏览,并不能直接利用。为有效地利用网站中大量的地理信息数据,本文介绍几种自动抓取Web网站中地理信息,并将地理信息转化成可直接利用的空间数据的方法,以实现批量操作空间数据。更多还原

【Abstract】 Geographic information is displayed variously on website. However,due to the format,user permission and other restrictions,most users can only browse the information. To take advantage of the large number of geographic information effectively and expand the geographic data sources,we introduce several methods on grabbing geographic information automatically,and converting geographic information into spatial data in order to batch spatial data.更多还原