【摘要】 为了在中充分利用现有的数字地图,根据图形数据中建筑物存放的特点,以图形交换文件为基础,GISCADDXF给出自动提取每个建筑物方法,并标准化其角点的存放顺序,自动转化为的面状要素,为提供基础数据。GISGIS更多还原

【Abstract】 To fully utilize the existing CAD digital map in GIS, according to the charactistics of memory of building in the graphic data, and based on DXF graphic exchange file, method of automatic retriveal of each building is given, sequence of memory of angular point is standardized. Thus the building is transformedautomatically into the regional elements in GIS. And basic data for GIS is provided.更多还原