[GRASS-user] Angle between segments of a polyline

[Rainer M Krug]

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Hi Hamish,

thanks a lot - that sounds reasonably easy - might be another happy
GRASS (ex-ESRI) user?	

Cheers,

Rainer

On 30/07/10 10:40, Hamish wrote:
> Rainer wrote:
>> a friend of mine wants (needs?) to determine the angle
>> between segments in an ESRI polyline (line vector feature).
>> As there does not seem to be an easy way in ArcGIS 9.2, I
>> thought about askeng here:
>>
>> Is there way of calculating these angles between the
>> different line segments in grass?
> 
> first split the poly line up into individual segments with
>   v.split vertices=1
> 
> then upload the slope of each line into the attribute table with
>   v.to.db option=azimuth
> 
> finally compare the angle between each connecting segments.
> 
> 
> Hamish
> 
> 
> 
>       


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Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)

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