[GRASS-user] calculate speed fron GPX in GRASS

2009-06-10 Thread maning sambale 
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?

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

2009-06-10 Thread Hamish 

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



  

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