[postgis-users] Q: using the M coordinate for time

[strk at refractions.net]

On Wed, Jan 10, 2007 at 10:52:25AM +0100, Just van den Broecke wrote:

> Questions:
> - known uses for storing time in "M" (or alternatives) in PostGIS  ?
> - any functions/operators to extract e.g. a specific point for an "M" 
> value or a range between "M" values (e.g. time interval) ?

Look up 'Linear Referencing' in the manual.

--strk;