[GRASS-user] calculate speed fron GPX in GRASS

I want to calculate the speed of my GPS trace in grass. Converting the vector points where an attribute speed is added. Any ideas how to do it? -- cheers, maning -- Freedom is still the most radical idea of all -N.Branden wiki:

Re: [GRASS-user] calculate speed fron GPX in GRASS

maning wrote: I want to calculate the speed of my GPS trace in grass. Converting the vector points where an attribute speed is added. Any ideas how to do it? use a gpsbabel filter directly on the GPX file. Hamish ___ grass-user