I am having a fairly specific issue. I am starting off by creating 100m2 squares around specific points on a map by adding a buffer to the point and then using this buffer as the extent for a Vector grid. This works fine in that it creates the squares as needed but when I export the shp files to create gpx files for use in the field with a garmin etrex 20 I find that instead of the file representing one track as a square, it is instead 4 tracks each representing one side of the square.
I have traced the problem back to when the squares are created by Vector Grid. The attribute table shows 4 different lines being created rather than one polyline. How do I merge these 4 lines into 1 so that I can then continue with the rest of the workflow to create the squares as needed.
I realise I could manually edit the final gpx file in Notepad but this seems a long winded way of solving the problem. I have also tried outputting as polygons rather than lines in Vector Grid but for some reason is then gives me 200m2 squares instead of 100m.
The squares are needed for field research in precise locations and it is critical that the centre point is followed and the researcher can easily follow the Garmin to find the relevant grid when in the landscape.