49 lines
2.1 KiB
Diff
49 lines
2.1 KiB
Diff
diff --git a/src/core/raster/qgsrasterbandstats.h b/src/core/raster/qgsrasterbandstats.h
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index 1d0c52e..25b5bb9 100644
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--- a/src/core/raster/qgsrasterbandstats.h
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+++ b/src/core/raster/qgsrasterbandstats.h
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@@ -45,6 +45,7 @@ class CORE_EXPORT QgsRasterBandStats
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stdDev = 0.0;
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sum = 0.0;
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elementCount = 0;
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+ histogramVector = new HistogramVector();
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isHistogramEstimated = false;
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isHistogramOutOfRange = false;
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}
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diff --git a/src/core/raster/qgsrasterlayer.cpp b/src/core/raster/qgsrasterlayer.cpp
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index 32455e8..92c056c 100644
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--- a/src/core/raster/qgsrasterlayer.cpp
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+++ b/src/core/raster/qgsrasterlayer.cpp
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@@ -2345,7 +2345,7 @@ void QgsRasterLayer::setDataProvider( QString const & provider,
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myRasterBandStats.bandName = mDataProvider->generateBandName( i );
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myRasterBandStats.bandNumber = i;
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myRasterBandStats.statsGathered = false;
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- myRasterBandStats.histogramVector = new QgsRasterBandStats::HistogramVector();
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+ myRasterBandStats.histogramVector->clear();
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//Store the default color table
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//readColorTable( i, &myRasterBandStats.colorTable );
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QList<QgsColorRampShader::ColorRampItem> ct;
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diff --git a/src/providers/gdal/qgsgdalprovider.cpp b/src/providers/gdal/qgsgdalprovider.cpp
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index 51fb786..57d1851 100644
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--- a/src/providers/gdal/qgsgdalprovider.cpp
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+++ b/src/providers/gdal/qgsgdalprovider.cpp
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@@ -1320,8 +1320,16 @@ void QgsGdalProvider::populateHistogram( int theBandNo, QgsRasterBandStats & t
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for ( int myBin = 0; myBin < theBinCount; myBin++ )
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{
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- theBandStats.histogramVector->push_back( myHistogramArray[myBin] );
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- QgsDebugMsg( "Added " + QString::number( myHistogramArray[myBin] ) + " to histogram vector" );
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+ if ( myHistogramArray[myBin] < 0 ) //can't have less than 0 pixels of any value
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+ {
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+ theBandStats.histogramVector->push_back( 0 );
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+ QgsDebugMsg( "Added 0 to histogram vector as freq was negative!" );
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+ }
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+ else
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+ {
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+ theBandStats.histogramVector->push_back( myHistogramArray[myBin] );
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+ QgsDebugMsg( "Added " + QString::number( myHistogramArray[myBin] ) + " to histogram vector" );
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+ }
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}
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}
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