Archiv der Kategorie: Sticked!

From Google Tracks (Android Smartphone) to QGIS

The app GoogleTracks for Android-Smartphones is an easy to use  tool for logging GPS-Tracks with your phone – & it allows you to export the Tracks to GPS and KML. So it’s no problem to get your tracks in your GIS-Software.

How-To with QGIS 1.8

  • Export your Track to GPX in GoogleTracks on your phone
  • Copy the *.gpx on your computer (or by the way mail it from your phone 🙂 )
  • You can directly open the GPX in QGIS with „Add vector“
  • Attention: GPS-Data is saved in GCS WGS84 ! If you combine it with layers in your national CRS be aware of using the correct transformation-parameters !

Google Tracks in PlayStore: Link

On-the-fly CRS-Transformation in QGIS 1.8

Quantum GIS has the option to perform on-the-fly transformation between geodata with different coordinate systems within the data-frame.

When to use it ?
You have geodata referenced in different CRS (Coordinate reference systems) in one project (data frame).

Be aware !
Be aware that every data-layer has a coorect CRS defined and the CRS of the data-frame has to be defined !

Also keep attention whether the correct transformation (parameters!) ist performed.

qgis_crs