TGeoXtru* GetArcShape(Double_t phi, Double_t rmin,
Double_t rmax, Int_t nedges, Double_t height);
//Auxiliary Method for Arc Shape
TGeoArb8* GetArbShape(TVector3* vertexpos[],Double_t* width,
TGeoXtru* GetArcShape(Double_t phi, Double_t rmin,
Double_t rmax, Int_t nedges, Double_t height);
//Auxiliary Method for Arc Shape
TGeoArb8* GetArbShape(TVector3* vertexpos[],Double_t* width,