Schlagwort-Archive: qgis

FlatGeobuf – vector performance for the cloud (tested with QGIS 3.24)

Thanks to the FOSS4G speech “FOSS4G – Cloud optimized formats for rasters and vectors explained,” I got first contact with the vector-format “FlatGeobuf” – and surprise also QGIS supports it 🙂 . That was an obvious starting point for testing it with some vector data and a poor network connection (~16 MBit).

FlatGeobuf – vector performance for the cloud (tested with QGIS 3.24) weiterlesen

Using Austrian weather&climate data with QGIS – ZAMG Data Hub

Since the end of october 2021 the meteorological service of Austria (ZAMG) provides datasets for free on the “ZAMG Data Hub“.

In addition to typical meteorological data from weather-stations, also a category with “spatial data” is available – so let’s have a look on the data with QGIS and the NetCDF datasets with timestamps.

Using Austrian weather&climate data with QGIS – ZAMG Data Hub weiterlesen

Fedora and QGIS-Flatpak – LTS versus recent version

Just for fun I gave Fedora and Gnome with version 34 a try again 🙂 One of the first things to do as a geoscientist has been the installation of QGIS… because of the not always up-to-date repo versions (and COPR), I selected the Flatpak-version… but got 3.16 LTS alltough I expected it to be 3.18.2 :-/ What I did not know, Flathub encapsulates 2 versions in one “Repo”.

Fedora and QGIS-Flatpak – LTS versus recent version weiterlesen

From observation.org SQLITE dump to QGIS with Spatialite

The nature observation platform observation.org provides a SQLite-dump of your observations. As a geospatial nerd it is obvious to have a deeper look on the database and how the location of the observations is stored… and to think one step further: Make a Spatialite database of it and use it directly in QGIS or ArcGIS.

[1] Export your data from observation.org as SQLITE-dump:

Observation.org SQLite Download

From observation.org SQLITE dump to QGIS with Spatialite weiterlesen

Corona COVID-19 meets QGIS – create your own maps

The Center for Systems Science and Engineering (CSSE) at Johns Hopkins University provides the famous Corona Dashboard and Map (ESRI ArcGIS Online App) and an ArcGIS Feature Service with the recent data (and a GIT Repo with the raw data). The ArcGIS Feature Server support of QGIS makes it easy to have “some fun” with QGIS and the provided datasets.

Coroa ArcGIS Feature Service data used in QGIS 3.12

Corona COVID-19 meets QGIS – create your own maps weiterlesen