[postgis-users] Create new lines from GPS points

Martin Fafard martin.fafard at geoprojection.com
Tue Jan 11 08:46:06 PST 2011


Ralf

Yes, ok for the buffer. But how to "dynamically segment" my new road 
from my original segment?

Martin

Ralf Suhr a écrit :
> Hi Martin,
>
> you will not get a correct solution for this problem. Your road network and 
> the gps points differs always.
>
> A possible "solution" is building a buffer around the streets und look für 
> intersection with gps points and filter by direction road/points. Grouping gps 
> points can give you the start and end point for the road. If a road is only 
> one times driven.
>
> Gr
> Ralf
>
> Am Dienstag 11 Januar 2011, 17:16:18 schrieb Martin Fafard:
>   
>> Hi
>>
>> I have a network of roads (topological) and I receive GPS points. I
>> would like to create new lines who follow exactly the same path as my
>> road from the GPS points (to "highlight" where the GPS unit was on the
>> network). The problem is I need to segment the new line because the GPS
>> points can stop anywhere on my roads... Any advice to do this?
>> Thank you
>>
>> Martin F
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>>     
>
>
>   
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