[postgis-devel] LRS functions

strk at refractions.net strk at refractions.net
Wed Nov 23 06:04:51 PST 2005

We've added two LRS functions with semantics
specified by ISO SQL/MM:

	- locate_along_measure(geom, measure)
	- locate_between_measures(geom, m_start, m_end)

Differently from Chris version the M values
are not assumed to be consecutive, so an input
LINESTRING can result in a collection of

Polygons, multipolygons and collection types are
NOT supported, all others are.

In the process of finalizing semantics all comments
and tests are welcome (in HEAD branch).


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