[postgis-users] navigation tracks (x,zy) h

Bob Basques Bob.Basques at ci.stpaul.mn.us
Thu Apr 5 08:26:50 PDT 2012

I didn't read into the solution he provided, so I don't know the background of the parameters he's using, but I would suspect that are intended for "R" to use as some sort of smoothing config.  Unless I'm mis reading your reply. 

I've never used "R" myself, but I have looked at it's capabilities, and they look very interesting. 


>>> Gery <gamejihou at hotmail.com> wrote:

Thanks Bob, in fact I posted that recently to the list, it is exactly what
I'm looking for, the output image posted by David Bitner reflects exactly my
problem, however he used 4 parameters for this process, but I only have two,
i.e., longitude and latitude in geographical coordinates (WGS84). So, I
haven't success in reproducing what he did. I installed R and PL/R already
and seems to be working with my PostGis.

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