Global Mapper v25.0

Keeping integrity of data/coordinates when exporting from SHP to TAB and viceversa

alberto_fr Global Mapper UserTrusted User
I happen to have a recurrent issue when opening/exporting vector files.
I have found out when exporting SHP to TAB and viceversa the coordinates are rounded, How can I keep the exact geometry at all levels (the exact same geometry) irrespective the format?

Thanks in advance!


  • bmg_bob
    bmg_bob Global Mapper Programmer
    Answer ✓
    Hello Alberto,

    Unfortunately, this is an inherent limitation of the TAB format. Coordinate values are not stored in their full resolution. If you start with a TAB file, converting to SHP should work because SHP can match the resolution of the TAB file. However, if you start with a SHP file, you will lose resolution when you export to TAB.

  • alberto_fr
    alberto_fr Global Mapper User Trusted User
    Thanks a lot for the clarification Bob,
    Kind Regards,