[PROJ] inspecting embedded proj.db

[Even Rouault]

Hi Javier,

$ objdump -t lib/libproj.so | grep proj_db_data
0000000000682660 l     O .rodata    000000000093b000 proj_db_data
$ dd if=lib/libproj.so of=my_proj.db bs=1 skip=$((16#0000000000682660)) 
count=$((16#000000000093b000))
$ sqlite3 my_proj.db "pragma integrity_check"
ok

Even

Le 05/11/2025 à 17:58, Javier Jimenez Shaw via PROJ a écrit :
> Hi
>
> I am considering to embed proj.db in libproj.so.
> Sometimes I want to look at proj.db later to see why some 
> transformation is not doing what I expect. (I modify the db)
>
> Is there a way to "extract" proj.db from the library?
>
> I use a normal "DB Browser for SQLite" in my ubuntu to inspect it.
>
> It is not critical. I see that proj.db is in the data folder after 
> compilation, so I can recompile and watch it. It is more curiosity.
>
> Thanks.
>
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