Suppose you're a cartographer or geographicinformationsystem (GIS) professional, working on behalf of one, or an advanced hobbyist and want to bring in multiple datasets from a variety of sources.
Many developers and geographicinformationsystem (GIS) professionals have been unable to use a drawing Interchange format (DXF) or "drawing" (DWG) file.
很多开发人员和地理信息系统(GIS)专家一直无法使用drawing Interchange Format (DXF)或“ drawing ” (dwg)格式的文件。
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The paper introduces the basic concept and principle of the technology in GeographicInformationSystem (GIS), discusses some kinds of technology and methods to carry out.