TG4 Conversion - How To??

Question

Are there any utilities that Bentley offers to convert TG4 to a standard image format?

fmcallis · Answer

Intergraph TG4 raster format is supported in Raster Manager. In Raster Manager have you tried doing Raster Manager > File > Batch Convert. You can also attach the .TG4 image in Raster Manager and right click on the raster image name and select Save As and select the raster format that you want to use. 
 
 Environment Variable: 
 
 MS_INGRFILE_REGISTRATION User defined. Sets File Georeference priority over attachment location for Intergraph raster formats, essentially CIT, C29, C30, C31, COT, RLE, TG4 and RGB raster formats. If undefined or set to 0, there is no effect. If set to 1, enables File Georeference priority for rasters. 
 
 https://communities.bentley.com/products/microstation/f/z_-archived-microstation-v8i-forum/69587/tg4---the-file-type-is-no-supported---13-error/181746#181746