public static extern TrivTVStruct *TrivExtrudeTV(CagdSrfStruct *Srf, CagdVecStruct *Vec);
public static extern VMdlVModelStruct *VMdlExtrudeTrimSrf(TrimSrfStruct *Section, CagdVecStruct *Dir);
public static extern TrivTVStruct *TrivExtrudeTV(CagdSrfStruct *Srf, CagdVecStruct *Vec);
public static extern VMdlVModelStruct *VMdlExtrudeTrimSrf(TrimSrfStruct *Section, CagdVecStruct *Dir);