[Marble-devel] Review Request 123579: UTM grid and coordinates fixed

Alejandro García Montoro alejandro.garciamontoro at gmail.com
Sat May 2 18:57:48 UTC 2015

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(Updated May 2, 2015, 6:57 p.m.)

Review request for Marble.


Displaying of the position on the status bar is now functional in both KDE and Qt versions. The template position string was changed to cope with the long UTM strings. These changes were done in the following files:
* src/apps/marble-kde/marble_part.cpp 	
* src/apps/marble-qt/QtMainWindow.cpp

All the functions start now with a lowercase letter. Some more changes were done in order to follow the coding style rules. These changes were done in the following files:
* src/lib/marble/geodata/data/GeoDataCoordinates.h 	
* src/lib/marble/geodata/data/GeoDataCoordinates.cpp 	
* src/plugins/render/graticule/GraticulePlugin.cpp

**Still to be done**: Make a unit test -maybe extend the TestGeoDataCoordinates.cpp?-.

Repository: marble


Two different tasks have been accomplished concerning UTM coordinate system:

1. The UTM grid rendering has been fixed. Now the grid and labels are drawn as expected (see http://upload.wikimedia.org/wikipedia/commons/e/ed/Utm-zones.jpg for comparison)
2. Some UTM functions have been added in order to properly calculate and display the coordinates on the status bar. Those functions have been wrapped in the new GeoDataUTM namespace inside GeoDataCoordinates.cpp If you prefer to see the functions integrated in the GeoDataCoordinates class, please, let me know.
**Still to be fixed**: The UTM string showed in the status bar is too long for the text field in which it is shown. I have not been able to change its size, as I have not found the relevant .ui file; where in the code should I check to change that?

**Note**: The lat/lon <-> UTM conversion algorithm has been adapted from this JavaScript code http://home.hiwaay.net/~taylorc/toolbox/geography/geoutm.html. The author says in the page "The JavaScript source code in this document may be copied and reused without restriction", and I have linked the website in the code. However, as I am not sure about all the licenses and authoring stuff, I would like you to review it.

Diffs (updated)

  src/apps/marble-kde/marble_part.cpp 283ad87a39f91e01c391a4dd8f4c9ddbeef41481 
  src/apps/marble-qt/QtMainWindow.cpp c4280c62b4534b7d10387b6895d142920f957bb7 
  src/lib/marble/geodata/data/GeoDataCoordinates.h 6efabd047f8f3aff63381facb78cb371c0740bf4 
  src/lib/marble/geodata/data/GeoDataCoordinates.cpp fe74a2e42db921b152a29ef04246ceaaa16c2325 
  src/plugins/render/graticule/GraticulePlugin.cpp a5e6d14a921c66d55cf01e39b16564dedcf6532b 

Diff: https://git.reviewboard.kde.org/r/123579/diff/


Changes tested in master branch @ 1st May.
Grid and coordinates work well (except for the displaying issue explained above) and are consistent with the UTM coordinate system.

File Attachments

UTM grid exceptions around Norway


Alejandro García Montoro

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