[Marble-devel] Review Request: AltitudeModel, altitude-profile plugin, srtm2 tilecreator

[Torsten Rahn]

> On Sept. 27, 2011, 7:58 a.m., Bernhard Beschow wrote:
> > src/plugins/render/CMakeLists.txt, line 41
> > <http://git.reviewboard.kde.org/r/102637/diff/2/?file=36659#file36659line41>
> >
> >     looks like this should be changed to altitude-profile
> 
> Torsten Rahn wrote:
>     I got the feel that the word "elevation" is preferably used whenever in German we are using "Höhen..." (like the technical "Digitales Höhenmodell" which is "Digital Elevation Model (DEM)" as a technical term, or "Höhenprofil" = "Elevationprofile", etc.)
>     I think that "altitude" is preferred whenever it's just "Höhe" in German.
>     But that's just my gut feeling.
> 
> Florian Eßer wrote:
>     I think the reason for the comment above was just a technical one: In the initial version of this review request, there was only the code for Niko's altitude-profile plugin, but the CMakeLists tried to include the (non-existing) subdirectory elevationprofile.
>     
>     But however, to continue the discussion: :-)
>     Here's another nice drawing showing the difference between elevation and altitude: http://en.wikipedia.org/wiki/File:Vertical_distances.svg
>     So basically, the term "elevation" seems to be bound to the earth's surface, while "altitude" is not.
>     
>     KML uses altitude, because it can describe coordinates that are not bound to the earth's surface, for example the GPS track of a flying plane.
>     
>     So taking this concept into consideration, the ElevationProfile plugin would strictly speaking be an AltitudeProfile instead (once it gains the ability to work for gpx/kml track data) and the AltitudeModel would be an ElevationModel, since it only describes the surface of the earth...

Florian: sounds all reasonable. :-) I'd say "Ship It!". 


- Torsten


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On Sept. 29, 2011, 4:30 a.m., Niko Sams wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://git.reviewboard.kde.org/r/102637/
> -----------------------------------------------------------
> 
> (Updated Sept. 29, 2011, 4:30 a.m.)
> 
> 
> Review request for Marble.
> 
> 
> Description
> -------
> 
> This patch adds an AltidudeModel that can be used to get the altitude/elevation of a coordinate. The altitude-profile plugin uses that to generate a profile for a route and calculate some statistics.
> The altitude-profile will be replaced/merged with elevationprofile plugin that was developed in parallel.
> 
> The other important part are the tiles. I used the existing TileCreator, refactored it to be more flexible and made a binary that creates the needed png tiles from the nasa srtm files. This takes a loong time, just as the upload to files.kde.org that is still running.
> 
> Please review my changes especially also those to TileCreator.
> To review this you can also use the altitude branch in the marble repository; that contains full history (which might be useful)
> 
> In the attached screenshot you can see the altitude-profile float widget (red line) and the elevationprofile float widget (black line) - not included in this request.
> 
> 
> Diffs
> -----
> 
>   data/CMakeLists.txt 6f16a74 
>   data/maps/earth/srtm2/0/000000/000000_000000.png PRE-CREATION 
>   data/maps/earth/srtm2/0/000000/000000_000001.png PRE-CREATION 
>   data/maps/earth/srtm2/srtm2.dgml PRE-CREATION 
>   src/icons/elevationprofile.png PRE-CREATION 
>   src/lib/AltitudeModel.h PRE-CREATION 
>   src/lib/AltitudeModel.cpp PRE-CREATION 
>   src/lib/CMakeLists.txt 328db8f 
>   src/lib/MarbleModel.h 0e4f2c8 
>   src/lib/MarbleModel.cpp c1588f8 
>   src/lib/TileCreator.h 5b58158 
>   src/lib/TileCreator.cpp 0ffa155 
>   src/lib/routing/AlternativeRoutesModel.h 945a745 
>   src/marble.qrc c92a412 
>   src/plugins/render/CMakeLists.txt 37075b3 
>   src/plugins/render/elevationprofile/CMakeLists.txt PRE-CREATION 
>   src/plugins/render/elevationprofile/ElevationProfileConfigWidget.ui PRE-CREATION 
>   src/plugins/render/elevationprofile/ElevationProfileFloatItem.h PRE-CREATION 
>   src/plugins/render/elevationprofile/ElevationProfileFloatItem.cpp PRE-CREATION 
>   src/plugins/render/elevationprofile/elevationprofile.qrc PRE-CREATION 
>   src/plugins/render/elevationprofile/flag-red-mirrored.png PRE-CREATION 
>   tools/tilecreator-srtm2/CMakeLists.txt PRE-CREATION 
>   tools/tilecreator-srtm2/main.cpp PRE-CREATION 
>   tools/tilecreator-srtm2/tccore.h PRE-CREATION 
>   tools/tilecreator-srtm2/tccore.cpp PRE-CREATION 
> 
> Diff: http://git.reviewboard.kde.org/r/102637/diff/diff
> 
> 
> Testing
> -------
> 
> 
> Screenshots
> -----------
> 
> altitude profile in action
>   http://git.reviewboard.kde.org/r/102637/s/263/
> 
> 
> Thanks,
> 
> Niko Sams
> 
>

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