| 摘要 |
PURPOSE: A method for converting a DXF(Drawing eXchange Format) file into a GEOMania data file is provided to convert graphic entities of a DXF file that is a exchange data format of various commercial GISs(Geographic Information Systems) and used in a CAD system into a data file of a GEOMania GIS software. CONSTITUTION: An operation processing part reads a DXF file to be converted from a map data storage part, and sets up a GDF(GEOMania Data File) to be generated(100). The operation processing part extracts a total area coordinates value, a standard spatial data character value and a layer name value from a header part and a table part of the DXF files(110,120), converts the layer name into a header part of an initial GDF, draws up the header part(130), converts the values into a header of a spatial part of the GDF, draws up the header(140), extracts graphic entities information of a entity part of the DXF file(150), converts the information into a page body among the spatial part of the GDF and draws up the page body(160). The operation processing part decides whether or not graphic entity among the DXF file remains(170) and displays the GDF that conversion is completed on a screen in case grahpic entity does not remain(180).
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