[postgis-users] postgis functions

[Eduardo Luís Garcia Escovar]

I guess one of these functions is what you need
http://postgis.refractions.net/docs/ch06.html#id2904692

HTH,
Eduardo

karim faisal escreveu:
> Hi all,
> can someone give me a hint for one problem...
>
> i have a linestring. it has start point coordinates, end point 
> coordinates and of course length and each point has (x,y) coordinates 
> pair. these x,y coordinates are stored in a separete table for every 
> start and end point respectively . let suppose that length of 
> linestring is 500 meter. i am at 300 meter away from end point of line 
> string. i want to get my position in (x,y) coordinates on this line 
> string. any hint......
>
> thnx
>
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