Re: [Flightgear-scenery] SRTM no data fills ?

[HB-GRAL <fli...@sa...>]

Am 27.04.12 18:03, schrieb fli...@sa...:
> Hi all
>
> Is there a "cleaned" SRTM-3 dataset already for scenery creation (i.e. on
> the mapserver Martin?), means a .hgt or dem dataset where grass or gdal no
> data fills are applied ? Or has always the raw data been used for all the
> (official and custom) scenery creation ? Raw srtm data v2_1 seems not to
> be cleaned at least in some areas I’m looking to. I don’t know what
> terragear does with no-data holes, but maybe it’s better to clean the
> files before chopping it with terragear-cs, at least for the small no-data
> holes which can be filled easy with gdal and/or grass?
>
> I can try to produce such a cleaned elevation set the next weeks and can
> make it available on my server, but only if it’s not already available
> somewhere else of course.
>
> Cheers, Yves
>
>
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Hi all

Currently I’m interpolating SRTM 3 data and fill no data holes, making 
it available in public domain soon. I miss a source for such data we can 
use for scenery creation under GPL terms. As I added some notes recently 
in FlightGear Corine Scenery Wiki etc., interpolated "SRTM" 4.1 from 
CGIAR is not compatible with official scenery licence, other resources 
are not complete and for mountain and uncovered areas only (i.e. 
viewfinderpanorama).

For the first step, the "cleaned" SRTM 3 data I’m going to upload will 
have filled no-data-gaps with simple gdal interpolation. This might look 
to simplified, but the result is not that bad for a first step ;-) Here 
you can see an example:
http://downloads.fgx.ch/screens/fill-no-data.png

Unless someone points me to another source to get such "cleaned" data 
compatible with official FlightGear scenery licence I will not stop the 
scripts ...

Cheers, Yves