Free_SEMHex Subroutine

  subroutine Free_SEMHex(myGeom)
    implicit none
    class(SEMHex),intent(inout) :: myGeom

    call myGeom%x%Free()
    call myGeom%dxds%Free()
    call myGeom%dsdx%Free()
    call myGeom%nHat%Free()
    call myGeom%nScale%Free()
    call myGeom%J%Free()

    ! Cached GenerateFromMesh scratch (Stage 6c).
    if(myGeom%scratchReady) then
      call myGeom%xMesh%Free()
      call myGeom%meshToModel%Free()
      deallocate(myGeom%meshToModel)
      myGeom%meshToModel => null()
      myGeom%scratchReady = .false.
      myGeom%scratchNGeo = -1
    endif

  endsubroutine Free_SEMHex