That's a bloody huge project...
I can't fathom you need all these layers at once.
You could try to split the project in a "base" project with a minimum
set of layers and split the rest in of the layers/groups into a number
of qlr files.
And use the "QLR Browser" plugin to load/unload the different qlr files
as you need them.
I personally think this method is better than using other plugins with
similar functionality and certainly is better than loading 1080 layers
at once.
The QLR browser plugin is used in a number of Danish municipalities
which typically uses a very large number of layers in their daily use of
QGIS.
--
Med venlig hilsen / Kind regards
Bo Victor Thomsen
Den 23-09-2019 kl. 16:34 skrev [email protected]:
Dear QGIS developers,
we are facing some crucial performance issues while loading a big QGIS
project.
The project ...
... has 1080 layers
... has 167 layer groups
... is heavily styled (in fact, most of the information in the .qgs
file are stylings)
... has a size of 53 MB (the .gqs file)
... loads the data from a PostGIS database
The main problem we are facing is, that the loading time of the .qgs
file is between 10 and 15 Minutes (depending on the network traffic).
We don't need all the layers which are defined in the .qgs file
immediately. In most cases, we just need a bunch of those layers at once.
Therefore, the question is, if QGIS provides a mechanism to postpone
the initial loading of all layers from QGIS startup to the point in
time when we actually need the layers? I.e., the layer structure is
loaded but not the layer data.
Is there a build-in QGIS mechanism that allows loading only the needed
layers from the .qgs file and write the appropriate styles to it or is
it planned to implement such a mechanism in QGIS?
Kind regards,
Josef
_______________________________________________
QGIS-Developer mailing list
[email protected]
List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
_______________________________________________
QGIS-Developer mailing list
[email protected]
List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
