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    c2a078f1
    Replace PkToP1MGTransfer with BasisInterpolationMatrixAssembler from dune-fufem · c2a078f1
    Oliver Sander authored
    There is no need to have our own implementation for this, we had it purely for
    historical reasons.
    
    Also, this change fixes a subtle bug:  Our own implementation used AlienElementLocalBasis,
    which returns zero if the LocalBasis is evaluated outside of the reference element.
    However, this happened sometimes due to rounding error on grids with very small quadrilateral
    elements.
    
    [[Imported from SVN: r9991]]
    c2a078f1
    History
    Replace PkToP1MGTransfer with BasisInterpolationMatrixAssembler from dune-fufem
    Oliver Sander authored
    There is no need to have our own implementation for this, we had it purely for
    historical reasons.
    
    Also, this change fixes a subtle bug:  Our own implementation used AlienElementLocalBasis,
    which returns zero if the LocalBasis is evaluated outside of the reference element.
    However, this happened sometimes due to rounding error on grids with very small quadrilateral
    elements.
    
    [[Imported from SVN: r9991]]