Table of contents
  1. Check a fire2a algorithm’s html log from WSL
  2. Animate a vector layer to record a fire spread video
  3. Override QGIS language

Check a fire2a algorithm’s html log from WSL

Did you accidentally close the algorithm’s dialog window, and at reopening the execution log is gone? We got you covered:

  • Open the log messages panel
  • Look for the fire2a tab
  • Each algorithm execution is timestamped, identified by its name and the location of its log file, copy the location of the log file
  • Open a terminal and navigate to the log file location
  • Start a python http server to visualize the html log file back in windows 
    cd /tmp/processing_vYybGp/8a8bd04a438641cf8a780de0dbe7eea6/InstanceDirectory/results
python3 -m http.server
  Serving HTTP on 0.0.0.0 port 8000 (http://0.0.0.0:8000/) ...
  127.0.0.1 - - [24/Jan/2025 22:48:48] "GET / HTTP/1.1" 200 -
# stop the server with Ctrl+C or closing the terminal
  • Back on Windows, open your favorite web-browser (firefox) and open http://localhost:8000/

Animate a vector layer to record a fire spread video

  1. Simulate a fire with propagation scars and/or propagation digraph
  2. Create a datetime (or date if datetime not available) type field in the vector layer attribute table

  3. Fill the field with a formula similar to:

     now() + make_interval(minutes:=time)
 now() + make_interval(days:=time)
  4. Open the “Temporal” setting of the layer to use this field as the temporal field
  5. Open the “Time Manager” feature in QGIS
Detailed Examples
Additional layer styling: make the polygons semi transparent and add borders
styling
example of attribute table with datetime field
attribute table
example layer temporal controller
temporal controller
example QGIS animation controller
animation controller

Override QGIS language

Sometimes weird things happen because translations are not fully compatible (for example non-posix characters like “ “,á,é,ñ,ö,etc.). We recommend installing the default English QGIS, else you can override the locale like this:

  • From qgis menu, click Settings > Options > General > Override System Locale & User interface translation : Make sure is “American English”

override translation screenshot