Re: [Qgis-user] Handling a large number of raster layers with Qgis architectural limitations

If the problem is from the number of files (and not actually it's size) then creating a virtual raster may help to solve it. https://docs.qgis.org/3.4/en/docs/user_manual/processing_algs/gdal/rastermiscellaneous.html#build-virtual-raster Alexandre Neto QGIS Support www.qcooperative.net A

Re: [Qgis-user] PostGIS- erroneous query : Unable to get list of tables from DB

Thank you Jason for your answer. I've granted usage on schema topology to my user -> same problem. I even granted PUBLIC. There is something 'wrong' with the passed request itself as it fails in pgadmin as well (see it below). I have a very basic test.qgz file. I launch it with 3.4.13 (I've

Re: [Qgis-user] Handling a large number of raster layers with Qgis architectural limitations

Hi, I ran into same problems when dealing with a few thousand files. The idea was to load the very small shp files created by another process and then merge then. I solved the problem by loading and merge it then I SAGA. It generally loads everything into memory and probably does not keep a

Re: [Qgis-user] PyQGIS: Get project extent outside QGIS

Hi, Answer to my own question: the order was wrong. I need to call QgsLayerTreeMapCanvasBridge before reading the project. This works: QgsApplication.setPrefixPath("/usr", True) qgs = QgsApplication([], False) # Load providers qgs.initQgis() project = QgsProject.instance() root =

[Qgis-user] PyQGIS: Get project extent outside QGIS

Hi, I want to read a project file and get the extent when the project was saved. In QGIS, iface.mapCanvas().extent() does exactly what I want. But I want to run a script outside QGIS. I've already tried: QgsApplication.setPrefixPath("/usr", True) qgs = QgsApplication([], False) # Load

Re: [Qgis-user] PostGIS- erroneous query : Unable to get list of tables from DB

I think your issue sounds like what I experienced and from what I dug up it can be as simple as what version of Postgres you were using (I was using Postgres version 10.10) not allowing any access to the "topology" schema. https://github.com/qgis/QGIS/issues/32483 I fixed by running the following

Re: [Qgis-user] Printing labelled vector maps in QGIS 3

Hi Larissa, sure you can, have a look to: https://docs.qgis.org/3.4/en/docs/training_manual/vector_classification/label_tool.html and https://docs.qgis.org/3.4/en/docs/training_manual/map_composer/map_composer.html --- Mit freundlichen Grüßen Stefan Giese Projektleiter/Consultant

[Qgis-user] Printing labelled vector maps in QGIS 3

Hello folks, I'd like to know if there is a possibility to print a map with the labels of a shapefile vector layer with the print composer. Maybe I don't have the right procedure so far. Cheers, Larissa ___ Qgis-user mailing list

Re: [QGIS-it-user] Tritech SeaKing SSS - QGIS

Il 18/11/2019 10:32, Telesub Lanterna - info ha scritto: Buongiorno, avrei bisogno di sapere se i dati estratti da un Tritech SeaKing SSS possono essere visualizzati su QGIS -- Alessandro Bertelà sa...@telesublanterna.com Telesub Lanterna S.r.l. www.telesublanterna.com Via Vincinella, 15

Re: [QGIS-it-user] Tritech SeaKing SSS - QGIS

Buongiorno Alessandro ovviamente dipende dal formato dati. Puoi mandarne qualche riga/un file (se pesante, un link) alla lista? Alberto Il giorno lun 18 nov 2019 alle ore 10:51 Telesub Lanterna - info < i...@telesublanterna.com> ha scritto: > Buongiorno, avrei bisogno di sapere se i dati

Re: [Qgis-user] Handling a large number of raster layers with Qgis architectural limitations

From my experience, GeoTIFF has a long history and is a more appropriate format to handle multiple large rasters. As a container, it could handle misc compression format (JPEG an other), misc representation at different scales (resolution is not a problem), misc color modes with raster/vectorial

[QGIS-it-user] Tritech SeaKing SSS - QGIS

Buongiorno, avrei bisogno di sapere se i dati estratti da un Tritech SeaKing SSS possono essere visualizzati su QGIS -- Alessandro Bertelà sa...@telesublanterna.com Telesub Lanterna S.r.l. www.telesublanterna.com Via Vincinella, 15 19037 - Santo Stefano di Magra (SP) Tel: 0187 631350 / 632005

Re: [Qgis-user] Handling a large number of raster layers with Qgis architectural limitations

Hi Patrick, Sorry for asking, did you create pyramids (overlays) for your raster "tiles"? See more information about pyramids on QGIS official documentation: https://docs.qgis.org/3.4/en/docs/user_manual/working_with_raster/raster_properties.html#pyramids-properties To create pyramids on many

[Qgis-user] Handling a large number of raster layers with Qgis architectural limitations

Good day to all One of the user experiences I have had from using the Qgis software has been with projects using large numbers of raster tile layers. These layers are generally tiles that have a size of 4800x7200 pixels in GeoJPEG format and have either been downloaded directly from tile

[QGIS-it-user] Richiesta autorizzazione Logo GFOSS.IT

Buongiorno a Tutti, Vi chiedo scusa, ho inavvertitamente sbagliato lista... Ciao, Francesco. ___ QGIS-it-user mailing list QGIS-it-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/qgis-it-user

[QGIS-it-user] Richiesta autorizzazione Logo GFOSS.IT

Buongiorno a Tutti, giovedi' 21 c.m. un breve intervento nell'ambito della conferenza "Torino e la battaglia mondiale del'auto elettrica" che si terra' in aula 25, ore 18.00, al Politecnico di Torino. Il mio piccolo contributo sara' centrato su una semplice analisi "distributiva" di addetti e