Jpg2000 Ortho

dsmithdsmapping09
dsmithdsmapping09
in Technical Support

I have a customer who wants a jpg2 - for some reason when I export this out of GM and then bring it back into GM to check it, it is totally out to lunch. Why is it exporting with incorrect spatial information? I just exported a tiff out of the same project and it was correct. Any ideas on what I am doing wrong?

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  • BillB
    BillB Global Mapper User Trusted User

    You may already have tested this, but did you tick the box in the JPG2000 export dialog to also export a World file (j2w)? This should be in the same folder, with the same name as the JPG2000 file, when you come to re-import into GM.

    GeoTiffs can also export TGW world files, but i think I am right in saying that GeoTiffs carry their own coordinate data (thus the name!) and so don't need the World file - which is why re-import would work for that format.

  • dsmithdsmapping09
    dsmithdsmapping09

    That was exactly the problem! Thank you for responding Bill

  • BillB
    BillB Global Mapper User Trusted User

    Aah - that's great news, glad you resolved it.

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