[Marble-bugs] [Bug 298502] New: infinite loop in MercatorProjection.cpp

[Sune Vuorela]

https://bugs.kde.org/show_bug.cgi?id=298502

            Bug ID: 298502
          Severity: normal
           Version: unspecified
          Priority: NOR
          Assignee: marble-bugs at kde.org
           Summary: infinite loop in MercatorProjection.cpp
    Classification: Unclassified
                OS: Linux
          Reporter: debian at pusling.com
          Hardware: Debian unstable
            Status: NEW
         Component: general
           Product: marble

in a custom app built on libmarble, I've hit a infiinte loop in
MercatorProjection.cpp

Reproducible: Sometimes

Steps to Reproduce:
build a my secret app and run it
Actual Results:  
infinite loop in ~75% of the cases

Expected Results:  
no infinite loop

in MercatorProjection.cpp in the function
231 bool MercatorProjection::geoCoordinates( const int x, const int y,          

236     const int radius = viewport->radius(); // can be null in our case

244     const qreal pixel2Rad = M_PI / (2 * radius); // pixel2Rad is now
infinity

249         lon = xPixels * pixel2Rad + centerLon; // lon is now infinity

251         while ( lon > M_PI )  lon -= 2*M_PI; // inf-=2*M_PI is still inf
and > M_PI

loops forever there.

line numbers is based on current HEAD which is v4.7.95-484-ga4626c0

bug observed with marble 4.7.4 but code looks still the same

-- 
You are receiving this mail because:
You are the assignee for the bug.