[QGIS-Developer] QGIS Server: default values for GetLegendGraphics (fonts, symbol sizes, etc.)

[Andreas Neumann]

Hi Jorge,

Thank you for your reply.

Do you know where in the QGIS project these LegendGraphic or legend 
style settings would be configured/stored?

Or could one use the .ini file to store such settings globally?

Your suggestion about Apache rewrite rules might be a good workaround 
for now, but it would be nice being able to set this through other 
means, ideally globally for all projects.

Thanks for this discussion!

Andreas

On 2021-06-17 18:24, Jorge Gustavo Rocha wrote:

> Hi Andreas,
> 
> The default values are in fact the values used in the QGIS project.
> These GetLegendGraphics parameters are used to overwrite those default
> settings.
> 
> These are parameters and are not read from the environment. It should
> not be difficult to read them from the environment too, but it requires
> some additional logic on the server side.
> 
> Some time ago, in our local municipality, I added some rewrite rules to
> Apache to use the same font in each GetLegendGraphics request, since 
> not
> all people were using the same font on QGIS projects. The rewrite just
> adds
> &TRANSPARENT=true&ITEMFONTFAMILY=FreightSans&LAYERFONTFAMILY=FreightSans
> to each GetLengenGraphic request. The legend was much more uniform with
> this simple rewrite.
> 
> As a workaround, I suggest something like these rewrite rules on the
> server side.
> 
> Regards,
> 
> Jorge
> 
> On 17/06/21 16:33, Andreas Neumann wrote:
> 
>> Hi,
>> 
>> I have a question regarding the default values for changing the look 
>> and
>> feel of GetLegendGraphics as described at
>> https://docs.qgis.org/3.16/en/docs/server_manual/services.html#getlegendgraphics
>> <https://docs.qgis.org/3.16/en/docs/server_manual/services.html#getlegendgraphics>
>> (e.g. LAYERFONTFAMILY, SYMBOLWIDTH, etc.).
>> 
>> Is there a way to specify "default" values  for these settings, e.g. 
>> in
>> an environment variable or through other means?
>> 
>> Thank you if you know anything about it.
>> 
>> Andreas
>> 
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> 
> J. Gustavo
> --
> Jorge Gustavo Rocha
> Departamento de Informática
> Universidade do Minho
> 4710-057 Braga
> Gabinete 3.29 (Piso 3)
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