[MapServer-users] getting incomplete parts of a geometry

[Rahkonen Jukka]

Hi,

The client is making tiled requests like this:

https://ibm-test.containers.wur.nl/mapserver/?map=%2Fetc%2Fmapserver%2FFood_Forest.map&SERVICE=WMS&serverType=mapserver&SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&FORMAT=image%2Fpng&TRANSPARENT=true&TILED=true&serverType=mapserver&layers=Food_Forest&query_layers=Food_Forest&CRS=EPSG%3A3857&INFO_FORMAT=text%2Fhtml&WIDTH=256&HEIGHT=256&STYLES=&BBOX=664084.9017416127%2C6758256.292862143%2C664696.3979678941%2C6758867.789088425

This tile contains most part of the parcel. What might happen is that when the client is asking for the next tile to the left, then the BBOX is partially outside the EXTENT that you have configured for the layer. Maybe Mapserver considers that the request is off-site and does not render anything.
Make your extent bigger or comment it out altogether. Also check the extent at the MAP level. It should cover the whole area where you possibly have data.

-Jukka Rahkonen-

Lähettäjä: MapServer-users <mapserver-users-bounces at lists.osgeo.org> Puolesta Eloi Ribeiro via MapServer-users
Lähetetty: keskiviikko 31. tammikuuta 2024 21.33
Vastaanottaja: mapserver-users at lists.osgeo.org
Aihe: Re: [MapServer-users] getting incomplete parts of a geometry

Hi,

That I don't know, but I'll check tomorrow with my colleague that is doing the front-end.
The URL is https://ibm.wur.nl/ and the Basemap and the layer is Food_Forest.
Eloi


On Wednesday, January 31st, 2024 at 20:29, Rahkonen Jukka <jukka.rahkonen at maanmittauslaitos.fi<mailto:jukka.rahkonen at maanmittauslaitos.fi>> wrote:

Hi,

How about the client, what is the BBOX that it is using in the WMS GetMap request that it creates?

-Jukka Rahkonen-

Lähettäjä: MapServer-users <mapserver-users-bounces at lists.osgeo.org<mailto:mapserver-users-bounces at lists.osgeo.org>> Puolesta Eloi Ribeiro via MapServer-users
Lähetetty: keskiviikko 31. tammikuuta 2024 21.19
Vastaanottaja: mapserver-users at lists.osgeo.org<mailto:mapserver-users at lists.osgeo.org>
Aihe: Re: [MapServer-users] getting incomplete parts of a geometry

Hi Jukka,

Thanks for your email. I got the extent from the geometry it self. Like so:
  ogrinfo PG:"host=pxxxxx port=5432 dbname=pxxxxx user=pxxxxx" ibm.food_forest -summary
  INFO: Open of `PG:host=pxxxxx port=5432 dbname=pxxxxx user=pxxxxx'
        using driver `PostgreSQL' successful.

  Layer name: ibm.food_forest
  Geometry: Polygon
  Feature Count: 1
  Extent: (194914.000000, 420110.000000) - (195152.000000, 420307.000000)
(...)


Eloi


On Wednesday, January 31st, 2024 at 19:58, Rahkonen Jukka <jukka.rahkonen at maanmittauslaitos.fi<mailto:jukka.rahkonen at maanmittauslaitos.fi>> wrote:
Hi,

Does the rendered part perhaps match with the extent that you have configured for the layer "EXTENT 194914 420110 195152 420307"?

-Jukka Rahkonen-

Lähettäjä: MapServer-users <mapserver-users-bounces at lists.osgeo.org<mailto:mapserver-users-bounces at lists.osgeo.org>> Puolesta Eloi Ribeiro via MapServer-users
Lähetetty: keskiviikko 31. tammikuuta 2024 19.27
Vastaanottaja: mapserver-users at lists.osgeo.org<mailto:mapserver-users at lists.osgeo.org>
Aihe: [MapServer-users] getting incomplete parts of a geometry

Hi all,

I'm using Mapserver 8.0 and I'm getting incomplete parts of a geometry, either if is TYPE LINE or POLYGON. Please, see pictures https://pasteboard.co/ToPTZ6OnjPaJ.png.
I wonder if I'm missing something in the mapfile. The LAYER part of the mapfile looks like this:

  LAYER
      TEMPLATE "XXXXX.tmpl"
      NAME "Food_Forest"
      STATUS ON
      TYPE LINE
      PROJECTION #source
        "init=epsg:28992"
      END # PROJECTION
      CONNECTIONTYPE POSTGIS
      CONNECTION "host=XXXXX port=XXXXX dbname=XXXXX user=XXXXX password=XXXXX"
      DATA "geom FROM XXXXX.XXXXX USING UNIQUE XXXXX_id USING srid=28992"
      EXTENT 194914 420110 195152 420307
      PROCESSING "CLOSE_CONNECTION=DEFER"
      CLASS
        NAME "Food_Forest"
        STYLE
          COLOR 255 0 0
          OUTLINEWIDTH 1
        END # STYLE
      END # CLASS
  END # LAYER

Thanks!

Cheers,
Eloi



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