[Marble-devel] Hillshading server

[Konrad Enzensberger]

Hi Dennis,

all i know about is that they use alpha channel
for hillshading.

http://wiki.openstreetmap.org/wiki/Hillshading_using_the_Alpha_Channel_of_an_Image

but they are prepared with GeoTiffs which is not the way you should go.
Best way in my opinion:
creating alpha channel png's from NASA srtm elevation data source.

see this :
http://gitorious.org/alpha-hillshading
they use some phyton scripts and libs from the gdal project to create
png's from srtm data.

if you could porting this phyton to C++ it would be a great feature,

konrad

----- Original Message ----- 
From: "Dennis Nienhüser" <earthwings at gentoo.org>
To: "Colin Marquardt" <cmarqu42 at googlemail.com>
Cc: <marble-devel at kde.org>
Sent: Tuesday, August 30, 2011 9:57 PM
Subject: [Marble-devel] Hillshading server


> Hi Colin,
>
> I was wondering how much data the hillshading layer takes on the
> toolserver. Ideally I'd like to extend it to cover the whole world. Is
> there some documentation how to create the tiles for the layer?
> Given the lack of admin activity [1] on the toolserver, we might host
> the tiles for the layer on a KDE server as well. I didn't talk to the
> KDE sysadmins about that yet, but at least we have more server space
> than we used to have a year ago.
>
> Regards,
> Dennis
>
> [1] https://jira.toolserver.org/browse/TS-867
>
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