wms png transparency not honoured

[qgib]

Author Name: Regis Haubourg (@haubourg)
Original Redmine Issue: 15990
Affected QGIS version: master
Redmine category:qgis_server
Assignee: René-Luc ReLuc

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Testing QGIS server 3 with QGIS 3 client, png image requested do not honour the transparency for white background.
Most probably it is a server issue because other wms sources work well.

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• qgis_mapserv_master_countries_transparent.png (René-Luc ReLuc)
• qgis_mapserv_214_countries_transparent.png (René-Luc ReLuc)

[qgib]

Author Name: Regis Haubourg (@haubourg)

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ok, will probably be fixed by ae64430

[qgib]

Author Name: Giovanni Manghi (@gioman)

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patch merged, can we close?

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• category_id was configured as QGIS Server
• status_id was changed from Open to Feedback

[qgib]

Author Name: Regis Haubourg (@haubourg)

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Let me check that (compiling now)

[qgib]

Author Name: Regis Haubourg (@haubourg)

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Mmm, that is still not transparent here . Anyone confirms?

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• assigned_to_id was configured as Marco Hugentobler

[qgib]

Author Name: Regis Haubourg (@haubourg)

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tested on revision f67cdc3

[qgib]

Author Name: René-Luc ReLuc (@rldhont)

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Confirmed with this request SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&BBOX=-40.42095738741319622,-189,71.67899928492427364,189&CRS=EPSG:4326&WIDTH=1046&HEIGHT=310&LAYERS=countrie&STYLES=&FORMAT=image/png&DPI=220&TRANSPARENT=TRUE based on Admin O from Natural Earth http://www.naturalearthdata.com/downloads/110m-cultural-vectors/110m-admin-0-countries/

It also means that transparent parameter is not tested!

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• assigned_to_id was changed from Marco Hugentobler to René-Luc ReLuc
• status_id was changed from Feedback to Open
• 10637 was configured as qgis_mapserv_master_countries_transparent.png

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• qgis_mapserv_master_countries_transparent.png (René-Luc ReLuc)

[qgib]

Author Name: René-Luc ReLuc (@rldhont)

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• 10638 was configured as qgis_mapserv_214_countries_transparent.png

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• qgis_mapserv_214_countries_transparent.png (René-Luc ReLuc)

[qgib]

Author Name: Regis Haubourg (@haubourg)

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Thanks René-Luc. We have a blocker then for tiled web clients.

[qgib]

Author Name: René-Luc ReLuc (@rldhont)

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But it is the master and we are working on rewrote all...

[qgib]

Author Name: René-Luc ReLuc (@rldhont)

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Hi Régis,
I think the regression comes from Paul Blottiere work about using QgsMapSettings.
No background is set in mapSettings for map rendering. I'll test it.

[qgib]

Author Name: René-Luc ReLuc (@rldhont)

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PR supplied #3960

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• pull_request_patch_supplied was changed from 0 to 1
• status_id was changed from Open to In Progress

[qgib]

Author Name: René-Luc ReLuc (@rldhont)

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PR merge #bc4c47029498275c00a918525f78e80f6262b6cf

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