[QGIS-trac] [Quantum GIS] #1159: Identify tool with on-the-fly projection can crash

[Quantum GIS]

#1159: Identify tool with on-the-fly projection can crash
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   Reporter:  barryrowlingson                            |              Owner:  nobody                  
       Type:  bug                                        |             Status:  new                     
   Priority:  critical: causes crash or data corruption  |          Milestone:  Version 1.0.0           
  Component:  Projection Support                         |            Version:  HEAD                    
   Keywords:                                             |   Platform_version:  Windows 0.10.0-Io (8383)
   Platform:  Debian                                     |           Must_fix:  No                      
Status_info:  0                                          |  
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 I loaded a world shapefile (downloaded from here
 http://www.cipotato.org/diva/data/moredata.htm), then set the projection
 to 164 - US National Atlas Equal Area (from the Projected Coord Systems:
 Lambert Azimuthal Equal Area category) and set on-the-fly projection.

 Do 'Zoom to Layer Extent' on the world layer. Now you get a US-centric
 circular map of the world.

 Using the Identify tool on the polygons works but is very slow. It's not a
 massive dataset but maybe the point-in-polygon projection calculations are
 complex. Never mind.  If you click '''outside''' the circle of the map
 Qgis crashes on Windows with a Visual C++ Runtime Library Error. I'm
 guessing it's an arithmetic problem when converting from a screen coord
 that doesn't have a piece of the world under it.

 Haven't tested on Linux yet.

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Ticket URL: <https://trac.osgeo.org/qgis/ticket/1159>
Quantum GIS <http://qgis.org>
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