Remove warning about WMS

[qgib]

Author Name: Paolo Cavallini (@pcav)
Original Redmine Issue: 8359
Affected QGIS version: 3.6.0
Redmine category:map_composer/printing

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When printing a layout that contains a WMS, we get a warning about max size.
I think this is useless now, as the print driver automatically tiles up the WMS request, and can be confusing and misleading for users.
Better remove the warning.

[qgib]

Author Name: Paolo Cavallini (@pcav)

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• subject was changed from Remove warning abouot WMS to Remove warning about WMS

[qgib]

Author Name: Jürgen Fischer (@jef-n)

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• category_id was changed from 33 to Map Composer/Printing

[qgib]

Author Name: Paolo Cavallini (@pcav)

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Still true

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• tag was changed from to easy

[qgib]

Author Name: Giovanni Manghi (@gioman)

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I'm not sure the composer automatically makes tiled requests.

[qgib]

Author Name: Anita Graser (@anitagraser)

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The warning is

Some WMS servers (e.g. UMN mapserver) have a limit for the WIDTH and HEIGHT parameter. 
Printing layers from such servers may exceed this limit. If this is the case, the WMS 
layer will not be printed

and imho it's more misleading than helpful because the reason why WMS do not print in my experience is if the output resolution is set to something bigger than 75 dpi. (Tested with http://data.wien.gv.at/daten/wms?service=WMS&request=GetCapabilities&version=1.1.1)

[qgib]

Author Name: Jukka Rahkonen (Jukka Rahkonen)

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What do you suggest for making the message more understandable for QGIS users? For me as a Mapserver user it does make sense and the current message probably tells what really happens: with screen size of, let's say, 800 x 600 pixels the raised output resolution leads to bigger WIDTH & HEIGHT (1600 x 1200 or so) in the GetMaps and MapServer will not send a map.

[qgib]

Author Name: Giovanni Manghi (@gioman)

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and imho it's more misleading than helpful because the reason why WMS do not print in my experience is if the output resolution is set to something bigger than 75 dpi. (

Hi Anita, this is not what I see, I can print layouts with WMS layers at above 75dpi. The limit should be set at server level, not a qgis issue.

Anyway regarding the original description: I does not seems to me that the print composer automatically tiles WMS layers. It does if of course it was choose to do it when the layer was added in the project using the WMS client and the option "tile size".

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• regression was configured as 0
• easy_fix was configured as 0

[qgib]

Author Name: Paolo Cavallini (@pcav)

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Unclear to me whether this has been solved.

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• description was changed from When printing a layout that contains a WMS, we get a warning about max size.
  I think this is useless now, as the print driver automatically tiles up the WMS request, and can be confusing and misleading for users.
  Better remove the warning. to When printing a layout that contains a WMS, we get a warning about max size.
  I think this is useless now, as the print driver automatically tiles up the WMS request, and can be confusing and misleading for users.
  Better remove the warning.
• status_id was changed from Open to Feedback

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Paolo Cavallini wrote:

Unclear to me whether this has been solved.

I don't think the wms layers are automatically tiled. They are if in the client the user choose to add it with a tiling strategy. So the warning still makes sense and this ticket should be closed.

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• status_id was changed from Feedback to Open

[qgib]

Author Name: Tilman Brock-Hesse (Tilman Brock-Hesse)

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If the user does not set a tile size and QGIS requests tiles larger than MaxWidth and/or MaxHeight, problems will occur.

I have added Feature Request #26980 to use the max sizes from the getCapabilities response in the "Add WMS layer" dialog.

[qgib]

Author Name: Giovanni Manghi (@gioman)

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End of life notice: QGIS 2.18 LTR
*
Source:*
http://blog.qgis.org/2019/03/09/end-of-life-notice-qgis-2-18-ltr/

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• status_id was changed from Open to Closed
• resolution was changed from to end of life

[qgib]

Author Name: Paolo Cavallini (@pcav)

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• resolution was changed from end of life to
• status_id was changed from Closed to Reopened

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Please SET THE NEW AFFECTED VERSION.

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• status_id was changed from Reopened to Open

[qgib]

Author Name: Paolo Cavallini (@pcav)

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• version was changed from master to 3.6.0

[nyalldawson]

From the conversation above this is a wontfix