various problems using WMS with QGIS

[qgib]

Author Name: Redmine Admin (Redmine Admin)
Original Redmine Issue: 632

Redmine category:web_services_clients/wms
Assignee: Magnus Homann

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Hi list,

I'm having a few problems with my WMS service using QGIS as client. May
be anyone has a few hints or ideas:

Using QGIS 0.8.0 on opensuse:

• a polygon layer doesn't show with transparency - even though it is
  implemented in the WMS and it works with other clients, the transparency
  as well is not adjustable using the properties menu (well i can change
  it to 50% but it dioesn't change the view) - the transparency works very
  nice, if I use the WMS-feeding postgis-service directly.
  [projection on runtime is activated]

Using QGIS0.8.1preview2 (pretty fresh installation with complete
uninstall of 0.8.1p1) on [[WinXP]]:

• while zooming in a WMS-raster or vektor layer an error message appears:
  msWMSLoadGetMapParams(): WMS server error. Image size out of range,
  WIDTH and HEIGHT must be between 1 and 2048 pixels.

This is probably due to a bug in the QGIS program. Please report this error.

Tried URL:
http://www.geographie.uni-freiburg.de/cgi-bin/chennai_wms?SERVICE=WMS&VERSION=1.1.0&REQUEST=GetMap&BBOX=80.417860,12.675728,80.602583,12.866004&SRS=EPSG:4326&WIDTH=3962&HEIGHT=3962&LAYERS=1.0.1%20Results%20Group%20Discussions&STYLES=&FORMAT=image/png&TRANSPARENT=TRUE

• get [[FeatureInfo]] doesn't return any results using the WMS (works, if I
  use the WMS-feeding postgis-service directly)
• projection on runtime is activated, but layers show up at different
  places while loading the same layer via WMS and the WMS-feeding
  postgis-service (the wms layer is displaced, it works using QGIS 0.8.0
  on opensuse)

Any ideas, hints, solutions, explanations?

Marco

[qgib]

Author Name: Magnus Homann (@homann)

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So, there are three issues:

1. Transparency doesn't seem to work.
2. Zooming doesn't work
3. Get featuerinfo does not work.

Am I right in this?

Can you split this bug in three parts, perhaps? It's easier to keep track on what is fixed and what is not. We work in small increments. :-)

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• status_id was changed from Open to In Progress

[qgib]

Author Name: anonymous - (anonymous -)

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I have (tried to) fix issue 2 (maybe wrong placement too?) in . Please download source, compile and see if it gets better. Many thanks for your help.

If you have svn, you can check out with

svn co https://svn.qgis.org/repos/qgis/tags/Release-0_8_0 qgis_08

and build with cmake.

[qgib]

Author Name: Magnus Homann (@homann)

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Above comment was me, and the correct svn path is

svn co https://svn.qgis.org/repos/qgis/branches/Release-0_8_0 qgis_08

'branches' not 'tags'

[qgib]

Author Name: Magnus Homann (@homann)

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Regarding 1), transparency is not supported for WMS at the moment

[qgib]

Author Name: Magnus Homann (@homann)

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Uninstall old versionj and install this and try. Most problems should be fixed.

http://www.qgis.org/uploadfiles/testbuilds/qgis_setup0.8.1preview3.exe

[qgib]

Author Name: Magnus Homann (@homann)

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Please let me know if there are any unsolved issues.

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• status_id was changed from In Progress to Closed
• resolution was changed from to fixed

[qgib]

Author Name: Anónimo (Anónimo)

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Milestone Version 0.9.2 deleted