[mkgmap-dev] Is dem-tdb branch ready for trunk ?

Mon Jan 29 15:12:50 GMT 2018

Hi all,

I've noticed that mkgmap cannot process the files that you can download from
http://opendem.info/opendemeu_download_4326.html
because they are zip files containing a directory that contains the needed file.
I've added support for this in r4092 now:
http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4092

BTW:
The files contain different readme.txt that explain the source, all seem to say this:
The following credit must be displayed when using these data:
"Produced using Copernicus data and information funded by the European Union - EU-DEM layers."

Gerd
________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Carlos Dávila <cdavilam at orangecorreo.es>
Gesendet: Samstag, 27. Januar 2018 17:50
An: mkgmap-dev at lists.mkgmap.org.uk
Betreff: Re: [mkgmap-dev] Is dem-tdb branch ready for trunk ?

Thanks for sharing your results. Have you tested data from
http://opendem.info/opendemeu_download_4326.html ?

El 27/01/18 a las 15:56, Peter Danninger escribió:
> Some results from my .hgt-tests:
>
> I wanted to find usable .hgt files for my
> web-application zu add height data to .gpx
>
> http://peter.myds.me/HDS/Tipps_Tricks/GPS/GPXclean/GPXclean.html
>  ==> look at: "Spezialisten-Funktionen per Aufrufparameter"
>  ==> sorry, only German ...
>
>  ==> The results are in the attachment.
>
> In short form:
> -----------------------------------------------------
> Viewfinderpanoramas Medium Europe 3sec:
>   ==> lots of voids and too low height values.
>
> NASA_USGS 1sec:
>   ==> no voids, but some too low height values.
>   not too bad, but easily correctable by
>   directly adjacent height values.
>   BUT only up to N59 in the north.
>
> Viewfinderpanoramas Northern Europe 1/3 sec:
>   ==> some voids in Island in the overlay
>   row/col, but easily correctable by
>   directly adjacent height values.
>
> To sum up:
> More then 3100 .hgt files without real problems.
> As far as available these are 1sec files.
> Only in the very north 3sec .hgt files.
>
> I'm happy with the NASA_USGS 1sec .hgt files :-)
>
> Peter
>
> http://www.danninger.eu
>
> Am 27.01.2018 um 15:06 schrieb Carlos Dávila:
>> El 27/01/18 a las 14:57, Carlos Dávila escribió:
>>> I have no objective method to compare hgt sources (is there any?)
>>
>> Well, a method I have already used is to get the number of voids in a
>> hgt file using QGIS.
>>
>>

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