On Jul 9, 2012, at 6:37 PM, Ed Linde wrote:
> Thanks Nicolas. I was wondering what these points in the linestring
> symbolize? Are the default set of points on a 2D linestring
> indicating the positions at which the line is not straight and changes
> directions?
Points making up a linestring are just that, points. They have no relationship
to whether or not the line changes direction. Consider...
+---------+-------------+---------------+
'+' are points defining the linestring that is symbolized by '+' and '-', but
there is no change in direction, no inflection point.
--
Puneet Kishor
_______________________________________________
postgis-users mailing list
[email protected]
http://postgis.refractions.net/mailman/listinfo/postgis-users