message: use same alpha convention as offline
diff: @@ -54,7 +54,7 @@ MEM_CLASS_PRE() class AliHLTTPCCAParam
  GPUhd() float RowX( int iRow ) const { return fRowX[iRow]; }
  GPUd() float Alpha() const { return fAlpha;}
  - GPUd() float Alpha( int iSlice ) const { return 0.174533 + DAlpha() * (iSlice < 18 ? iSlice : (iSlice - 18));}
  + GPUd() float Alpha( int iSlice ) const { if (iSlice >= 18) iSlice -= 18; if (iSlice >= 9) iSlice -= 18; return 0.174533 + DAlpha() * iSlice;}
  GPUd() float DAlpha() const { return fDAlpha;}
  GPUd() float CosAlpha() const { return fCosAlpha;}
  GPUd() float SinAlpha() const { return fSinAlpha;}
  