Re: [mapserver-users] Missing Dynamic Charts

2021-04-15 Thread Rahkonen Jukka (MML) 
Hi Sarah,

The easiest way to get the BBOX from QGIS is to open the Debugging/Development 
tools with the function key F12 or through the View-Panels menu. Start 
recording and QGIS will capture the http requests including GetMaps for you.

-Jukka Rahkonen-

-Alkuperäinen viesti-
Lähettäjä: mapserver-users  Puolesta 
Jeff McKenna
Lähetetty: torstai 15. huhtikuuta 2021 16.14
Vastaanottaja: mapserver-users@lists.osgeo.org
Aihe: Re: [mapserver-users] Missing Dynamic Charts

Hi Sarah,

Thanks for providing links to the data.  I've used your NaturalEarth link, and 
generated a simple test, with bogus values for the charts, you can see it in 
your browser at 
https://ms4w.dev/cgi-bin/mapserv.exe?map=/ms4w/apps/ticket-charting/charts.map=browse=openlayers=all

You can alternatively add it as a WMS (in QGIS for example) with the
onlineresource: 
https://ms4w.dev/cgi-bin/mapserv.exe?map=/ms4w/apps/ticket-charting/charts.map

You can see that I cannot replicate your issue (all pie charts show across 
Canada, with that NaturalEarth admin file).  My full mapfile contains nothing 
special, no tricks, but is available at: 
https://gatewaygeomatics.com/dl/ticket-charting.zip

Some other comments:
- remove DUMP TRUE from your mapfiles as this will break MapServer in the 
upcoming 8.0 release
- you will notice that I also have no min/max scales set
- to test your issue with your problem mapfile, get the exact problem extent 
values from QGIS, and then generate a map image with the command:
   shp2img -m mine.map -o ttt.png -map_debug 3 -e minx miny maxx maxy


Give my mapfile a test locally to see also...

Hope that helps!

and hello from the east coast.

-jeff




--
Jeff McKenna
GatewayGeo: Developers of MS4W, MapServer Consulting and Training co-founder of 
FOSS4G http://gatewaygeo.com/


On 2021-04-14 3:15 p.m., Sarah Zwiep wrote:
> Good afternoon,
> 
> 
> I'm working on a project that's experiencing some unexpected behavior 
> with a Mapserver dynamic charts layer. Some polygons in the layer will 
> not reliably render charts. For example, at the desired chart size of 30 
> and zoom level 4, only 7 of the expected 12 charts render. If we 
> increase the zoom level then more of those missing charts will render. 
> Similarly, if we decrease the chart size more charts render. However, we 
> would like all the charts in view to render regardless of zoom level and 
> size, which I believe aligns with the expected behavior of a dynamic 
> charts layer.
> 
> 
> We have tried 2 separate vectors files (of Canadian provinces and 
> territories) from statcan 
> 
>  
> and naturalEarth 
> 
>  
> but the problem persists. Neither file has invalid geometries according 
> to OGC standards. The project previously used a vector file of Canadian 
> ecozones and the charts worked fine with that, so the problem only 
> started when we switched the file from ecozones to provinces/territories.
> 
> 
> I've listed links the layer definition, as well of screenshots of the 
> project with the missing charts at different sizes/zooms (No chart on 
> Nunavut is expected). The project is using MapServer 7.4.4 in Centos 7.9 
> and configures the project mapfile as a WMS server for a Leaflet 1.4.0 
> WMS layer.
> 
> Any guidance is much appreciated.
> 
> Best regards,
> Sarah
> 
> https://pasteboard.co/JXkbqTz.png 
> 
> https://pasteboard.co/JXkbIO4.png 
> 
> https://pasteboard.co/JXkc1t1.png
>  
> 
> https://pasteboard.co/JXkcgxh.png 
> 
> https://pastebin.com/SdudDHNX 
> 
> 
> 
> 
> 
> 
> ___
> mapserver-users mailing list
> mapserver-users@lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/mapserver-users
> 
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Re: [mapserver-users] Missing Dynamic Charts

2021-04-15 Thread Jeff McKenna 

Hi Sarah,

Thanks for providing links to the data.  I've used your NaturalEarth 
link, and generated a simple test, with bogus values for the charts, you 
can see it in your browser at 
https://ms4w.dev/cgi-bin/mapserv.exe?map=/ms4w/apps/ticket-charting/charts.map=browse=openlayers=all


You can alternatively add it as a WMS (in QGIS for example) with the 
onlineresource: 
https://ms4w.dev/cgi-bin/mapserv.exe?map=/ms4w/apps/ticket-charting/charts.map


You can see that I cannot replicate your issue (all pie charts show 
across Canada, with that NaturalEarth admin file).  My full mapfile 
contains nothing special, no tricks, but is available at: 
https://gatewaygeomatics.com/dl/ticket-charting.zip


Some other comments:
- remove DUMP TRUE from your mapfiles as this will break MapServer in 
the upcoming 8.0 release

- you will notice that I also have no min/max scales set
- to test your issue with your problem mapfile, get the exact problem 
extent values from QGIS, and then generate a map image with the command:

  shp2img -m mine.map -o ttt.png -map_debug 3 -e minx miny maxx maxy


Give my mapfile a test locally to see also...

Hope that helps!

and hello from the east coast.

-jeff




--
Jeff McKenna
GatewayGeo: Developers of MS4W, MapServer Consulting and Training
co-founder of FOSS4G
http://gatewaygeo.com/


On 2021-04-14 3:15 p.m., Sarah Zwiep wrote:

Good afternoon,


I'm working on a project that's experiencing some unexpected behavior 
with a Mapserver dynamic charts layer. Some polygons in the layer will 
not reliably render charts. For example, at the desired chart size of 30 
and zoom level 4, only 7 of the expected 12 charts render. If we 
increase the zoom level then more of those missing charts will render. 
Similarly, if we decrease the chart size more charts render. However, we 
would like all the charts in view to render regardless of zoom level and 
size, which I believe aligns with the expected behavior of a dynamic 
charts layer.



We have tried 2 separate vectors files (of Canadian provinces and 
territories) from statcan 
 
and naturalEarth 
 
but the problem persists. Neither file has invalid geometries according 
to OGC standards. The project previously used a vector file of Canadian 
ecozones and the charts worked fine with that, so the problem only 
started when we switched the file from ecozones to provinces/territories.



I've listed links the layer definition, as well of screenshots of the 
project with the missing charts at different sizes/zooms (No chart on 
Nunavut is expected). The project is using MapServer 7.4.4 in Centos 7.9 
and configures the project mapfile as a WMS server for a Leaflet 1.4.0 
WMS layer.


Any guidance is much appreciated.

Best regards,
Sarah

https://pasteboard.co/JXkbqTz.png 

https://pasteboard.co/JXkbIO4.png 

https://pasteboard.co/JXkc1t1.png 


https://pasteboard.co/JXkcgxh.png 

https://pastebin.com/SdudDHNX 







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