QGis server GetPrint request renders layer in wrong order, polygons are on top

[qgib]

Author Name: lars Lingner (@gislars) Original Redmine Issue: 16769 Affected QGIS version: 2.18.11 Redmine category:qgis_server Assignee: René-Luc ReLuc

---

Hello,

I've setup a QGis Server 2.18.10 (wasn't available in Affected QGis Version on the submit form). Requesting via GetPrint and groupname or map name the layer order isn't right, maybe reversed. Export directly in QGis desktop and via WMS request is working properly.

I compared the QGis logfile for a request with group name and all layer names and it is the same. The layer names are in the right order, if the order in the log is actually showing render order.

The getProjectSettings request is listing the layers also in the right order.

At the supplied archive you will find my test case, which includes

• point,line,multiline,polygon layer
• OSM source data
• GetProjectSettings.xml

Layer structure is: Group: grundkarte Layers: points,lines,multilines,polygons

I'm happy to help and test. Right now I don't know how, because the logfiles don't give me a clue.

---

• bugreport_qgisserver.tar.gz (lars Lingner)

[qgib]

Author Name: Giovanni Manghi (@gioman)

---

• regression was changed from 0 to 1
• priority_id was changed from Normal to High

[qgib]

Author Name: René-Luc ReLuc (@rldhont)

---

Does your GetPrint request is build by QWC or Lizmap ? In QGIS 2.18 compare to 2.14 the layer order has been changed in GetPrint request.

[qgib]

Author Name: Giovanni Manghi (@gioman)

---

• status_id was changed from Open to Feedback

[qgib]

Author Name: lars Lingner (@gislars)

---

René-Luc ReLuc wrote:

Does your GetPrint request is build by QWC or Lizmap ?

Actually, I wrote it by myself.

qgis_mapserv.fcgi?VERSION=1.3.0&MAP=/path/to/qgis-project.qgs&styles=&format=pdf&request=GetPrint&layers=grundkarte&SRS=EPSG%3A3857&transparent=true&service=WMS&map0:extent=790262,6573581,792161,6575585&DPI=300&TEMPLATE=xxx

This request, using only the group name, is rendering the layer in wrong order.

qgis_mapserv.fcgi?VERSION=1.3.0&MAP=/path/to/qgis-project.qgs&styles=&format=pdf&request=GetPrint&layers=polygons,multilines,lines,points&SRS=EPSG%3A3857&transparent=true&service=WMS&map0:extent=790262,6573581,792161,6575585&DPI=300&TEMPLATE=xxx

This request, using explicit layer names, is working fine. If I reverse the layer names, the rendering is also reversed. IMHO everything ok. First layer is rendered first, following layers rendered on top of it.

In QGIS 2.18 compare to 2.14 the layer order has been changed in GetPrint request.

Right, but it would only affect requests without group names?

Update: I'm using now 2.18.11

[qgib]

Author Name: Michael Douchin (@mdouchin)

---

I confirm this behaviour, with QGIS Server 2.18.11. When calling a GetPrint request with a group name (containing several groups or layers), the rendering of each layers of this group is reversed. For example, if you have

MyGroup

• polygon cities with only borders (no fill)
• contours lines
• dem raster

You see only the dem raster when you use Mygroup in the layers parameter of the getprint request

[qgib]

Author Name: Giovanni Manghi (@gioman)

---

• status_id was changed from Feedback to Open
• version was changed from 2.18.9 to 2.18.11

[qgib]

Author Name: René-Luc ReLuc (@rldhont)

---

PR submitted https://github.com/qgis/QGIS/pull/5168

Can you test it ?

---

• assigned_to_id was configured as René-Luc ReLuc
• pull_request_patch_supplied was changed from 0 to 1

[qgib]

Author Name: Michael Douchin (@mdouchin)

---

Just tested it : it works now like a charm. Thanks

[qgib]

Author Name: René-Luc ReLuc (@rldhont)

---

• resolution was changed from to fixed/implemented

[qgib]

Author Name: Giovanni Manghi (@gioman)

---

• status_id was changed from Open to Closed