prevent crash in the color brewer color ramp when requested color

corresponding to the NaN value (fix #29509)
qgis · May 27, 2019 · bdbc358 · bdbc358
1 parent 06ab26a
commit bdbc358
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/core/qgscolorramp.cpp b/src/core/qgscolorramp.cpp
@@ -552,7 +552,7 @@ double QgsColorBrewerColorRamp::value( int index ) const
 
 QColor QgsColorBrewerColorRamp::color( double value ) const
 {
-  if ( mPalette.isEmpty() || value < 0 || value > 1 )
+  if ( mPalette.isEmpty() || value < 0 || value > 1 || std::isnan( value ) )
     return QColor();
 
   int paletteEntry = static_cast< int >( value * mPalette.count() );