[gdal-dev] Where to fins my own files

[Abel Pau]

Thanks for your answers.

When I call aMMIDDBFFile=CPLFindFile("gdal", "MM_m_idofic.dbf");
NULL pointer is obtained and I think I know why. When debuging there are 2 FinderLocations:
The first one is “D:\GitHub-repository\GDAL\data;” (note thar there is a “;” at the end).
When tries to compose with MM_m_idofic.dbf (the file copied in “data” folder) I obtain: “D:\GitHub-repository\GDAL\data;\MM_m_idofic.dbf”

So, debugging more ERROR_PATH_NOT_FOUND is returned. And I think that “;” is the problem, isn’t it?

Has any sense all I am saying? Or I have something wrong anywhere? Thanks!!

Sean,
> For datum files, have you checked whether they already exist in the PROJ project?
This MM_m_idofic.dbf file is a table of synonyms between the internal SRH identifiers of MiraMon and the EPSG you all know.
So, it’s only a help to find the EPSG of a MiraMon layer when translatinc a MiraMon layer to another.

Thanks you all and I keep waiting for any help about the misterious “;”.



De: Even Rouault <even.rouault at spatialys.com>
Enviado el: diumenge, 7 de gener de 2024 12:20
Para: Sean Gillies <sean.gillies at gmail.com>; Abel Pau <a.pau at creaf.uab.cat>
CC: gdal dev <gdal-dev at lists.osgeo.org>
Asunto: Re: [gdal-dev] Where to fins my own files


Yes, the practice for a resource file is:

- put it under data/

- add it to the GDAL_DATA_FILES variable on top level gdal.cmake file

- use CPLFindFile("gdal", "your.file") to get its path
Le 07/01/2024 à 01:59, Sean Gillies via gdal-dev a écrit :
Happy New Year to you too, Abel.

Other drivers, such as PCI and NITF,  include some files in the data directory.  See  https://github.com/OSGeo/gdal/tree/master/data. Distributions generally copy these to $prefix/share/gdal on unix-like systems. I'm not aware of a practice of copying data out of a driver's directory to that same location, though it's probably possible with Cmake. Your driver's own directory won't necessarily exist on a system where you install GDAL.

For datum files, have you checked whether they already exist in the PROJ project?
On Sat, Jan 6, 2024, 2:32 PM Abel Pau via gdal-dev <gdal-dev at lists.osgeo.org<mailto:gdal-dev at lists.osgeo.org>> wrote:
Hi,
Happy New 2024 to everyone who celebrates it!

I am programming a driver and in some point I need to read a file that contains some information (and it’s better to keep this in a file than in c code) about the Horizontal Reference System.
I have this file here: “GDAL\ogr\ogrsf_frmts\miramon”, but when coding I don’t know how to get to this folder.

There is any method to open a file (using VSIFOpenL(), for instance) in THIS specific directory? Can I use “GDAL\ogr\ogrsd_frmts\miramon” like that?

If not, where can I put this file to be found when executing the code? And how to write this path in the code?

Thanks in advance!!



Abel Pau Garcia
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