In my current project using Qgis 2.99, turning off the rasters uses 16
GB, turning them on uses 52 GB
I do not believe it is independent from the number of layers that are
being displayed.
Previous versions of the software did not cache every single raster (the
number of rasters actually being displayed on the canvas at any one time
is a small fraction of the total number in the project)
On 16/11/17 20:11, Matthias Kuhn wrote:
Hi Patrick,
This uses some memory (~ canvas width pixels * canvas height pixels *
8 preview images * 32 bit RGBA), so let's assume 50 MB to 100 MB.
This consumption is independent from the number or type of layers.
Matthias
On 11/16/2017 08:02 AM, Patrick Dunford wrote:
So to put it another way this is the reason why Qgis wants to use a
huge amount of memory (40 GB) when I have a lot of raster images
loaded in the background.
On 16/11/17 18:56, Tim Sutton wrote:
Hi
On 16 Nov 2017, at 04:35, Patrick Dunford <enzedrailm...@gmail.com
<mailto:enzedrailm...@gmail.com>> wrote:
What is this "preview job" function?
Its application logic to prefetch / pre-render offscreen content in
anticipation of user panning the map.
Regards
Tim
_______________________________________________
QGIS-Developer mailing list
QGIS-Developer@lists.osgeo.org <mailto:QGIS-Developer@lists.osgeo.org>
List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
—
*Tim Sutton*
*Co-founder:*Kartoza
*Project chair:*QGIS.org <http://QGIS.org>
Visit http://kartoza.com <http://kartoza.com/> to find out about
open source:
Desktop GIS programming services
Geospatial web development
GIS Training
Consulting Services
*Skype*: timlinux
*IRC:*timlinux on #qgis at freenode.net <http://freenode.net>
_______________________________________________
QGIS-Developer mailing list
QGIS-Developer@lists.osgeo.org
List info:https://lists.osgeo.org/mailman/listinfo/qgis-developer
Unsubscribe:https://lists.osgeo.org/mailman/listinfo/qgis-developer
_______________________________________________
QGIS-Developer mailing list
QGIS-Developer@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
_______________________________________________
QGIS-Developer mailing list
QGIS-Developer@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
