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”.
Not only people living in mountainous regions want to know the summarized positive and negative difference of altitude along a track (“line”). With QGIS 3.10 the new processing algorithm “climb along line” does the job for you.
The upcoming QGIS 3.0 (www.qgis.org) is heavily under development and it was time to have a quick first glimpse on the recent developer-version (2.99-Master). QGIS 3.0 will be based on Qt5 and Python 3 – using the actual 2.99-Master was like “being at home” with some nice new furniture…
After importing geodata from the GIS to MongoDB and creating a spatial index (part 1), the exciting (spatial) adventure starts. With “normal” (relational) databases and their spatial extensions (Oracle spatial, PostgreSQL/PostGIS, SQLite/Spatialite,…) a lot of spatial queries and geoprocessing are possible. So let’s try to find out which adresses have to be evacuated 250m around some “event”…
Today I tried QGIS 2.13 (dev-version of the upcoming 2.14) and had a look at the now implemented support for “3D-Features” (2.5d support). It works well and makes the workflow described some months ago easier.
Today I started to test the developer-version of the upcoming QGIS 2.14 and found a nice feature integrated out-of-the-box. In previous QGIS-versions tracing along existing geometries required 3rd-party plug-ins (e.g. http://isticktoit.net/?p=131) – now it looks like integrated with QGIS 🙂
Update 7.3.2016: Lutra Consulting describes all details in it’s Blog
Sometimes (eg. doing it for a bulk of geodatasets) converting and transforming geodatasets from their Source-CRS to another with command line tools like ogr2ogr (http://www.gdal.org/ ) can be helpful.
With ogr2ogr it’s also an easy task to use NTv2-based transformations like for Austria the AT_GIS_GRID.
One of the most precise and best ways to transform geodata from the Austrian MGI-System to ETRS89 is using the AT_GIS_GRID (NTv2 Transformation) provided by the BEV. Thanks to the developers of the NTV2-PlugIn for QGIS it is really easy to use now.
Ich habe ein Beispiel zusammengestellt, um sich diverse Ärgernisse zu sparren.
Hier das Beispiel als Download: Leaflet-map-example