[gdal-dev] remote png and aux file

[Michael Sumner]

> Should it be picking that up, or is that too much to ask with the /vsi*
protocol?

 I meant to say:   ' Should it be picking that up, or is that too much to
ask *without* the /vsi* protocol?'

On Fri, Oct 31, 2025 at 3:21 PM Michael Sumner <mdsumner at gmail.com> wrote:

> I've noticed that a sidecar .aux.xml for a PNG is not picked up on a bare
> url:
>
>  gdal.Open("
> https://projects.pawsey.org.au/geotar0/sentinel-2-c1-l2a/2023/01/03/Macquarie_Island_Station_2023-01-03.png
> ").GetGeoTransform()
> (0.0, 1.0, 0.0, 0.0, 0.0, 1.0)
>
> gdal.Open("/vsicurl/
> https://projects.pawsey.org.au/geotar0/sentinel-2-c1-l2a/2023/01/03/Macquarie_Island_Station_2023-01-03.png
> ").GetGeoTransform()
> (-3000.0, 10.0, 0.0, 3000.0, 0.0, -10.0)
>
> Should it be picking that up, or is that too much to ask with the /vsi*
> protocol?  (I don't have an opinion, just vaguely expected that it would
> find the sidecar file without /vsi*).
>
> Cheers, Mike
>
>
>
>
> --
> Michael Sumner
> Ordinary Member,  Streets People Love Hobart Association
> Research Software Engineer
> Australian Antarctic Division
> Hobart, Australia
> 0438489030
> e-mail: mdsumner at gmail.com
>


-- 
Michael Sumner
Ordinary Member,  Streets People Love Hobart Association
Research Software Engineer
Australian Antarctic Division
Hobart, Australia
0438489030
e-mail: mdsumner at gmail.com
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