Thanks Even & Seth, I will give it a try
On Fri, Sep 8, 2023 at 3:02 PM Seth G <[email protected]> wrote: > I think `WITH_GIF` is only used to read in GIF images (for symbols etc.)? > > As Even wrote GDAL/GIF doesn't seem to work as an OUTPUTFORMAT. I get: > > msDrawMap(): Image handling error. Failed to draw layer named 'countries'. > msOGRFileNextShape(): OGR error. OGR GetNextFeature() error'd. Check logs > > > -- > web:https://geographika.net & https://mapserverstudio.net > twitter: @geographika > > On Fri, Sep 8, 2023, at 2:43 PM, Even Rouault wrote: > > Philippe, > Le 08/09/2023 à 14:16, Philippe Ghesquiere via MapServer-dev a écrit : > > Hi all, > I am a little bit confused with GIF support for WMS/WMTS services. > In several parts of the documentation, it is mentioned that GIF support is > discarded with the end of the "GD library" support. > > I noticed the compilation option in CMakelists.txt : > option(WITH_GIF "Enable GIF support (for PIXMAP loading)" ON) > I do not understand the "for PIXMAP loading" comment. > > Anyway, our mapserver does not server WMS/WMTS tiles in GIF format. > > So here are my few questions : > > - is GIF support enabled by default for WMS/WMTS services ? > > no > > > - do I need to add the option : -DWITH_GIF=ON for cmake configuration ? > > only to load raster symbols in GIF format > > > - do I need to add a specific mapserver configuration, like : > OUTPUTFORMAT > NAME "GIF" > DRIVER GDAL/GIF > MIMETYPE "image/GIF" > IMAGEMODE RGB > EXTENSION "gif" > END > > I don't think that will work. The GDAL GIF driver already expects paletted > data, not RGB. And I don't think switching IMAGEMODE to PC256 would work > since that support has effectively gone. > > I believe the only option to get paletted data is to use PNG8 with the > AGG/PNG8 driver and MIMETYPE="image/png; mode=8bit" > > Even > > > Thanks for your help and advices > Philippe > > The information in this e-mail is confidential. The contents may not be > disclosed or used by anyone other than the addressee. Access to this e-mail > by anyone else is unauthorised. > If you are not the intended recipient, please notify Airbus immediately > and delete this e-mail. > Airbus cannot accept any responsibility for the accuracy or completeness > of this e-mail as it has been sent over public networks. If you have any > concerns over the content of this message or its Accuracy or Integrity, > please contact Airbus immediately. > All outgoing e-mails from Airbus are checked using regularly updated virus > scanning software but you should take whatever measures you deem to be > appropriate to ensure that this message and any attachments are virus free. > > _______________________________________________ > MapServer-dev mailing > [email protected]https://lists.osgeo.org/mailman/listinfo/mapserver-dev > > -- http://www.spatialys.com > My software is free, but my time generally not. > > _______________________________________________ > MapServer-dev mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/mapserver-dev > > > The information in this e-mail is confidential. The contents may not be disclosed or used by anyone other than the addressee. Access to this e-mail by anyone else is unauthorised. If you are not the intended recipient, please notify Airbus immediately and delete this e-mail. Airbus cannot accept any responsibility for the accuracy or completeness of this e-mail as it has been sent over public networks. If you have any concerns over the content of this message or its Accuracy or Integrity, please contact Airbus immediately. All outgoing e-mails from Airbus are checked using regularly updated virus scanning software but you should take whatever measures you deem to be appropriate to ensure that this message and any attachments are virus free.
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