基于FME的DWG图形转换

DWG graphics files conversion program based on FME

CGCS2000坐标系自2008年启用以来,各地测绘规划部门有大量的图形文件需要从原坐标系转换至CGCS2000坐标系。但是图形转换,特别是DWG图形参数法转换无法和文本坐标点文件相似直接进行计算,需要对文件进行解码与重新编码。本文使用FME开发者工具FME Workbench对DWG文件进行四参数法坐标系变换,可批量进行转换,为规划部门存量DWG文件快速变换提供了有效工具。

After the CGCS2000 coordinate system has been in use since 2008,a large number of graphic files need to be converted from the original coordinate system to the CGCS2000 coordinate system.However,the graphics conversion,especially DWG conversion cannot be directly conducted similar to text coordinate point files,while the DWG file needs to be decoded and re-encoded.This article uses the FME developer tool FME Workbench to perform four-parameter transformation for DWG files.It can support batch conversion,providing an effective tool for planning department to quickly convert DWG files.