[Marble-devel] red circle artifact at lon/lat 0/0 by marble widget

Ákos Maróy akos at maroy.hu
Sun Jan 1 17:21:44 UTC 2012


I'm having a strange issue: if I include MarlbeWidget in a Qt 
application, it displays a red dot at lon/lat 0/0, where the circle is 
drawn so that the left side of the circle aligns with the meridian, 
while the top side of the circle aligns with the equator. the size of 
the circle seems to be tied to the window - thus when zooming out, the 
size of the circle as compared to Earth increases.

I wonder what is generating this artifact? I can send a screenshot if 

This artifact manifests itself even when doing very minimal coding, e.g. 
with the very basic code sample found on this page: 

This all happens with a manually compiled marble version 1.2.0, on an 
Ubuntu 11.04 64 bit system.

I wonder how one can turn off this red circle.


More information about the Marble-devel mailing list