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[analysis] fix derivative filter z factor handling (#5073)

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nirvn committed Aug 25, 2017
1 parent 3ef008c commit 74306c7d50b1ac032b7c4f2fcbbdfe7d4c310b38
Showing with 2 additions and 2 deletions.
  1. +2 −2 src/analysis/raster/qgsderivativefilter.cpp
@@ -92,7 +92,7 @@ float QgsDerivativeFilter::calcFirstDerX( float* x11, float* x21, float* x31, fl
return mOutputNodataValue;
}

return sum / ( weight * mCellSizeX * mZFactor );
return sum / ( weight * mCellSizeX ) * mZFactor;
}

float QgsDerivativeFilter::calcFirstDerY( float* x11, float* x21, float* x31, float* x12, float* x22, float* x32, float* x13, float* x23, float* x33 )
@@ -159,7 +159,7 @@ float QgsDerivativeFilter::calcFirstDerY( float* x11, float* x21, float* x31, fl
return mOutputNodataValue;
}

return sum / ( weight * mCellSizeY * mZFactor );
return sum / ( weight * mCellSizeY ) * mZFactor;
}


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