Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I now have a polygon and have succesfully raised 25 random sample points and saved as a shape file. I have checked that GPS utility and the shape file are set at 27700 BNG but when I try and open the sample points shape file in GPS utility it says cannot open shape file. Can anybody help and is there an easy solution as I need to sample these points soon!

share|improve this question

If all else fails, export the point layer as GPX and upload that directly to your GPS device.

share|improve this answer
Thank you. I am learning Quantum and GPS utility. Is there a simple way to do what you say, as I have tried but can't find a way to do that please? – Planet Profit Jun 4 '12 at 21:03
In the main menu: Layer -> Save As -> GPX. You should also change the CRS dropdown to Selected and then use WGS 84 (lat/lon), which is the usual way they are stored in. I wouldn't count on the device to know how to transform the coordinates, so it is more a file format standard flexibility. – lynxlynxlynx Jun 4 '12 at 21:42

If you get weird behaviour trying to open a projected file, go back to lat/lon WGS84 and try that out.

  1. Save your shapefile in WGS84 (EPSG 4326): right click and 'Save As' then set CRS to 4326 before saving.
  2. Open in GPSUtility after changing to latlon/wgs84 in the main dialog.

Saving as a GPX for direct upload to your GPSMap62 is also a good option - but make sure you save as a GPX using EPSG:4326 because QGIS does NOT automatically change it on saving! The GPX format is only in lat/lon, WGS84, but QGIS will save the coordinates and datum of whatever the layer is unless you explicitly change it.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.