Hi All, I am trying to understand, that given a LINESTRING type, I have noticed it can have multiple points in there. If a linestring is curved, do these points signify the positions at which there is a change in direction or curvature? So that a linestring basically approximates each curved segment as a sequence of such points? Also, how can I extract all such points mentioned in a linestring?
Cheers, Ed
_______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users