[mapserver-users] Mapserver 7.6.1 - PHP 7 Swig - Kml output issue

Jeff McKenna jmckenna at gatewaygeomatics.com
Thu Oct 15 08:52:29 PDT 2020


Hi Bruno,

I can trigger this problem with any mapfile that uses an inline FEATURE, 
a label, and KML output (only with those 3 combinations enabled, as it 
works with other outputformats as SVG).  I don't think it has anything 
to do with your settings, as I can trigger that here on Windows/MS4W as 
well.

Sorry for the bad news.

-jeff




-- 
Jeff McKenna
MapServer Consulting and Training Services
co-founder of FOSS4G
http://gatewaygeo.com/



On 2020-10-15 10:58 a.m., Bruno Domenget wrote:
> Sorry I should have said at first that I already checked that. I have 
> both KML and LIBKML drivers listed.
> 
> And KML output works if I remove the LABEL entry from my mapfile...
> 
> Le jeu. 15 oct. 2020 à 09:52, Jeff McKenna 
> <jmckenna at gatewaygeomatics.com <mailto:jmckenna at gatewaygeomatics.com>> a 
> écrit :
> 
>     Hi Bruno,
> 
>     Next test is to test that your local GDAL was built with KML support:
> 
>         ogrinfo --formats
> 
>     (you should see a 'LIBKML' or 'KML' driver listed there, either one can
>     be used for this)
> 
>     -jeff
> 
> 
> 
>     -- 
>     Jeff McKenna
>     MapServer Consulting and Training Services
>     co-founder of FOSS4G
>     http://gatewaygeo.com/
> 
> 
>     On 2020-10-15 10:48 a.m., Bruno Domenget wrote:
>      > Hi Jeff,
>      >
>      > Thanks for your quick answer !
>      >
>      > So I tried with shp2img but got the same error with KML output...
>      > *msDrawMap(): Image handling error. Failed to draw layer named
>     'points'.
>      > <br>
>      > GDAL: In GDALDestroy - unloading GDAL shared library.*
>      >
>      > Logfile :
>      > [Thu Oct 15 15:36:02 2020].174254 msLoadMap(): 0.005s
>      > [Thu Oct 15 15:36:02 2020].174344 msDrawMap(): rendering using
>      > outputformat named kml (KML).
>      > [Thu Oct 15 15:36:02 2020].174348 msDrawMap(): WMS/WFS set-up and
>     query,
>      > 0.000s
>      > [Thu Oct 15 15:36:02 2020].174369 msINLINELayerOpen: Layer is
>     already open!
>      > [Thu Oct 15 15:36:02 2020].174564
>      >
>     msSaveImage(/home/mapserver/public_html/test/././5f885042_26ab_0.png)
>      > total time: 0.000s
>      > [Thu Oct 15 15:36:02 2020].174629 msDrawMap(): Image handling error.
>      > Failed to draw layer named 'points'.
>      > [Thu Oct 15 15:36:02 2020].174649 msFreeMap(): freeing map at
>      > 0x559913f1af60.
>      > [Thu Oct 15 15:36:02 2020].174698 freeLayer(): freeing layer at
>      > 0x559914207ad0.
>      >
>      > It works perfectly with PNG output, and with KML output if I
>     remove the
>      > LABEL lines from my mapfile.
>      >
>      > So it is not a Mapscript issue, there is definitely an issue with my
>      > Mapserver instance...
>      >
>      > Bruno
>      >
>      >
>      >
>      > Le jeu. 15 oct. 2020 à 08:42, Jeff McKenna
>      > <jmckenna at gatewaygeomatics.com
>     <mailto:jmckenna at gatewaygeomatics.com>
>     <mailto:jmckenna at gatewaygeomatics.com
>     <mailto:jmckenna at gatewaygeomatics.com>>> a
>      > écrit :
>      >
>      >     oops here is the correct command for kml output:
>      >
>      >         shp2img -m mymap.map -o ttt.kml -i kml -all_debug 5
>      >
>      >     (does that generate a valid KML file?)
>      >
>      >
>      >     -jeff
>      >
>      >
>      >
>      >     --
>      >     Jeff McKenna
>      >     MapServer Consulting and Training Services
>      >     co-founder of FOSS4G
>      > http://gatewaygeo.com/
>      >
>      >
>      >     On 2020-10-15 9:41 a.m., Jeff McKenna wrote:
>      >      > Hi Bruno,
>      >      >
>      >      > What happens if you call that mapfile at the commandline with
>      >     shp2img
>      >      > (and pass the "i" switch with your format name)?  such as:
>      >      >
>      >      >    shp2img -m mymap.map -o ttt.png -i kml -all_debug 5
>      >      >
>      >      > You can also then try png output:
>      >      >
>      >      >    shp2img -m mymap.map -o ttt.png -i png -all_debug 5
>      >      >
>      >      > Does it generate a valid map image?
>      >      >
>      >      >
>      >      >
>      >      >
>      >      > -jeff
>      >      >
>      >      >
>      >      >



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