[mkgmap-dev] make the gmapsupp visible/invisible in Basecamp

Thu Sep 8 14:46:00 BST 2016

Hi Gerd,
I think your suggestion meets my idea to set the marker bit within mkgmap.
Would be nice to have that easy-to-use option.
Joern

2016-07-08 8:59 GMT+02:00 Gerd Petermann <gpetermann_muenchen at hotmail.com>:

> Hi all,
>
> Steve Ratcliffe wrote
> >> I guess we can change mkgmap to set the corresponding bit,
> >>
> >> maybe someone can point me to the right place ?
> >
> > It is the bottom bit in the image header at ImgHeader.OFF_SUPP
> > See the change at r2306.
> > _______________________________________________
>
> so we already know the bit to change, I checked the code and I think
> we can add an option to change it without much code.
>
> If I got that right, the bit doesn't exactly mean "hide gmapsupp in
> Basecamp"
> but more something like "treat img file as installed on the PC"
>
> So I wonder what the option name should be.
> And should mkgmap only set the bit when the file is a gmapsupp.img ?
> I think yes, so my suggested option name  + description would be
> --hide-gmapsupp-on-pc
>   Set a bit in the gmapsupp.img that tells PC software that the file is
> already installed on the PC
>   and therefore there is no need to read it from the device.
>
> Any better suggestions?
>
> Gerd
>
>
> Gerd
>
>
>
>
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