[postgis-users] Intepolation

[Sandro Santilli]

Please use the mailing list for further help.

On Thu, Feb 14, 2013 at 02:12:05AM -0800, kimanimike2002 at yahoo.com wrote:
>> <quote author='Sandro Santilli'>
>> On Tue, Jan 15, 2013 at 05:29:33AM -0800, Michael Ngugi Kimani wrote:
>> > Hi all,
>> > Is is possible to create a query in postgis that does interpolation using
>> > point data.
>> 
>> Yes, see the linear referencing section in the reference manual:
>> http://postgis.net/docs/manual-2.0/reference.html#Linear_Referencing
>
> Thanks for your feedback. Isnt it possible for one to get interpolated results inform of polygon. Because, I have rain data from various points. I want the interpolation of this points to display the area coverage and it seems linear referencing is for lines only. 

Maybe filter points based on values and use ST_ConvexHull to build
a polygon arund them, or consider using the new raster type.


--strk;