shape_circle.f90 Source File

program shape_circle

    use forcad, only: rk, nurbs_curve

    implicit none
    type(nurbs_curve) :: shape

    !-----------------------------------------------------------------------------
    ! Setting up NURBS circle
    !-----------------------------------------------------------------------------

    !> Set a circle with radius 2.0 and center at [0.0, 0.0, 0.0]
    call shape%set_circle(center = [0.0_rk, 0.0_rk, 0.0_rk], radius = 2.0_rk)

    !> Export control points to a VTK file
    call shape%export_Xc('vtk/shape_circle_Xc.vtk')

    !-----------------------------------------------------------------------------
    ! Creating circle
    !-----------------------------------------------------------------------------

    !> Generate the NURBS circle with a resolution of 100
    call shape%create(res = 100)

    !> Export the generated cirlce to a VTK file
    call shape%export_Xg('vtk/shape_circle_Xg.vtk')

    !-----------------------------------------------------------------------------
    ! Visualization using PyVista
    ! Note: PyVista is required for visualization. Install it using `pip install pyvista`
    !-----------------------------------------------------------------------------

    !> Show the control geometry and geometry using PyVista
    call shape%show('vtk/shape_circle_Xc.vtk','vtk/shape_circle_Xg.vtk')

    !-----------------------------------------------------------------------------
    ! Finalizing
    !-----------------------------------------------------------------------------

    !> Finalize the NURBS curve object
    call shape%finalize()

end program