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Update unit tests for nurbs_surface
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Signed-off-by: Seyed Ali Ghasemi <info@gha3mi.com>
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@gha3mi
gha3mi committed Jul 1, 2024
1 parent e514129 commit 8c11af3
Showing 1 changed file with 274 additions and 22 deletions.
296 changes: 274 additions & 22 deletions test/test_nurbs_surface.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,10 @@ program test_nurbs_surface
real(rk) :: knot1(4), knot2(4), area, areab
real(rk), allocatable :: Xc(:,:), Wc(:)
real(rk), allocatable :: Xg(:,:), Xgb(:,:)
integer :: id
integer, allocatable :: elemConn(:,:)
real(rk), allocatable :: Tgc(:,:), dTgc(:,:,:), Tgcb(:,:), dTgcb(:,:,:), d2Tgc(:,:,:), d2Tgcb(:,:,:)
real(rk), allocatable :: Tgc1(:), dTgc1(:,:), Tgc1b(:), dTgc1b(:,:), d2Tgc1(:,:), d2Tgc1b(:,:)
integer :: i, id
real(rk), allocatable :: nearest_Xg(:), nearest_Xt(:)
type(unit_test) :: ut

Expand All @@ -20,38 +23,286 @@ program test_nurbs_surface

allocate(Wc(size(Xc, 1)))
Wc = 1.0_rk
Wc(2) = 2.0_rk
Wc(2) = 0.9_rk

knot1 = [0.0_rk, 0.0_rk, 1.0_rk, 1.0_rk]
knot2 = [0.0_rk, 0.0_rk, 1.0_rk, 1.0_rk]

call nurbs%set(knot1, knot2, Xc, Wc)
call bsp%set(knot1, knot2, Xc)

call nurbs%set(degree=nurbs%get_degree(), nc=nurbs%get_nc(), Xc=nurbs%get_Xc(), Wc=nurbs%get_Wc())
call bsp%set(degree=nurbs%get_degree(), nc=nurbs%get_nc(), Xc=nurbs%get_Xc())

call nurbs%create(30, 30)
call bsp%create(30, 30)

call nurbs%cmp_area(area)
call bsp%cmp_area(areab)

call ut%check(res=area, expected=25.0_rk, tol=1e-5_rk, msg="test_nurbs_surface: 01")
call ut%check(res=areab, expected=25.0_rk, tol=1e-5_rk, msg="test_nurbs_surface: 02")

call nurbs%nearest_point([0.0_rk, 0.0_rk, 0.5_rk], nearest_Xg, nearest_Xt, id)
call ut%check(res=nearest_Xg, expected=[0.0_rk, 0.0_rk, 0.0_rk], tol=1e-5_rk, msg="test_nurbs_surface: 01")
call ut%check(res=nearest_Xt, expected=[0.0_rk, 0.0_rk], tol=1e-5_rk, msg="test_nurbs_surface: 02")
call ut%check(res=id, expected=1, msg="test_nurbs_surface: 03")
call ut%check(res=nearest_Xg, expected=[0.0_rk, 0.0_rk, 0.0_rk], tol=1e-5_rk, msg="test_nurbs_surface: 03")
call ut%check(res=nearest_Xt, expected=[0.0_rk, 0.0_rk], tol=1e-5_rk, msg="test_nurbs_surface: 04")
call ut%check(res=id, expected=1, msg="test_nurbs_surface: 05")

call bsp%nearest_point([0.0_rk, 0.0_rk, 0.5_rk], nearest_Xg, nearest_Xt, id)
call ut%check(res=nearest_Xg, expected=[0.0_rk, 0.0_rk, 0.0_rk], tol=1e-5_rk, msg="test_nurbs_surface: 04")
call ut%check(res=nearest_Xt, expected=[0.0_rk, 0.0_rk], tol=1e-5_rk, msg="test_nurbs_surface: 05")
call ut%check(res=id, expected=1, msg="test_nurbs_surface: 06")
call ut%check(res=nearest_Xg, expected=[0.0_rk, 0.0_rk, 0.0_rk], tol=1e-5_rk, msg="test_nurbs_surface: 06")
call ut%check(res=nearest_Xt, expected=[0.0_rk, 0.0_rk], tol=1e-5_rk, msg="test_nurbs_surface: 07")
call ut%check(res=id, expected=1, msg="test_nurbs_surface: 08")

call nurbs%nearest_point2([0.0_rk, 0.0_rk, 0.5_rk], 1e-10_rk, 10, nearest_Xt, nearest_Xg)
call ut%check(res=nearest_Xg, expected=[0.0_rk, 0.0_rk, 0.0_rk], tol=1e-5_rk, msg="test_nurbs_surface: 07")
call ut%check(res=nearest_Xt, expected=[0.0_rk, 0.0_rk], tol=1e-5_rk, msg="test_nurbs_surface: 08")

call bsp%nearest_point2([0.0_rk, 0.0_rk, 0.5_rk], 1e-10_rk, 10, nearest_Xt, nearest_Xg)
call ut%check(res=nearest_Xg, expected=[0.0_rk, 0.0_rk, 0.0_rk], tol=1e-5_rk, msg="test_nurbs_surface: 09")
call ut%check(res=nearest_Xt, expected=[0.0_rk, 0.0_rk], tol=1e-5_rk, msg="test_nurbs_surface: 10")

call bsp%nearest_point2([0.0_rk, 0.0_rk, 0.5_rk], 1e-10_rk, 10, nearest_Xt, nearest_Xg)
call ut%check(res=nearest_Xg, expected=[0.0_rk, 0.0_rk, 0.0_rk], tol=1e-5_rk, msg="test_nurbs_surface: 11")
call ut%check(res=nearest_Xt, expected=[0.0_rk, 0.0_rk], tol=1e-5_rk, msg="test_nurbs_surface: 12")

Xg = nurbs%get_Xg()
Xgb = bsp%get_Xg()

call nurbs%set([0.0_rk, 1.0_rk], [0.0_rk, 1.0_rk], [1,1], [-1, -1], [-1, -1], Xc, Wc)
call bsp%set([0.0_rk, 1.0_rk], [0.0_rk, 1.0_rk], [1,1], [-1, -1], [-1, -1], Xc)

call ut%check(res=nurbs%get_Xg(), expected=Xg, tol=1e-5_rk, msg="test_nurbs_surface: 13")
call ut%check(res=bsp%get_Xg(), expected=Xgb, tol=1e-5_rk, msg="test_nurbs_surface: 14")

call nurbs%set([2,2], Xc, Wc)
call bsp%set([2,2], Xc)

call ut%check(res=nurbs%get_Xg(), expected=Xg, tol=1e-5_rk, msg="test_nurbs_surface: 15")
call ut%check(res=bsp%get_Xg(), expected=Xgb, tol=1e-5_rk, msg="test_nurbs_surface: 16")


call nurbs%create(Xt1 = nurbs%get_Xt(1), Xt2 = nurbs%get_Xt(2))
call bsp%create(Xt1 = bsp%get_Xt(1), Xt2 = nurbs%get_Xt(2))

call ut%check(res=nurbs%get_Xg(), expected=Xg, tol=1e-5_rk, msg="test_nurbs_surface: 17")
call ut%check(res=bsp%get_Xg(), expected=Xgb, tol=1e-5_rk, msg="test_nurbs_surface: 18")

call ut%check(res=nurbs%get_Xc(), expected=Xc, tol=1e-5_rk, msg="test_nurbs_surface: 19")
call ut%check(res=bsp%get_Xc(), expected=Xc, tol=1e-5_rk, msg="test_nurbs_surface: 20")

call ut%check(res=nurbs%get_Xc(1), expected=Xc(1,:), tol=1e-5_rk, msg="test_nurbs_surface: 21")
call ut%check(res=bsp%get_Xc(1), expected=Xc(1,:), tol=1e-5_rk, msg="test_nurbs_surface: 22")

call ut%check(res=nurbs%get_Xc(1,1), expected=Xc(1,1), tol=1e-5_rk, msg="test_nurbs_surface: 23")
call ut%check(res=bsp%get_Xc(1,1), expected=Xc(1,1), tol=1e-5_rk, msg="test_nurbs_surface: 24")

call ut%check(res=nurbs%get_Xg(), expected=Xg, tol=1e-5_rk, msg="test_nurbs_surface: 25")
call ut%check(res=bsp%get_Xg(), expected=Xgb, tol=1e-5_rk, msg="test_nurbs_surface: 26")

call ut%check(res=nurbs%get_Xg(1), expected=Xg(1,:), tol=1e-5_rk, msg="test_nurbs_surface: 27")
call ut%check(res=bsp%get_Xg(1), expected=Xgb(1,:), tol=1e-5_rk, msg="test_nurbs_surface: 28")

call ut%check(res=nurbs%get_Xg(1,1), expected=Xg(1,1), tol=1e-5_rk, msg="test_nurbs_surface: 29")
call ut%check(res=bsp%get_Xg(1,1), expected=Xgb(1,1), tol=1e-5_rk, msg="test_nurbs_surface: 30")

call ut%check(res=nurbs%get_Wc(), expected=Wc, tol=1e-5_rk, msg="test_nurbs_surface: 31")

call ut%check(res=nurbs%get_Wc(1), expected=Wc(1), tol=1e-5_rk, msg="test_nurbs_surface: 32")

call ut%check(res=nurbs%get_knot(1), expected=knot1, tol=1e-5_rk, msg="test_nurbs_surface: 33")
call ut%check(res=bsp%get_knot(1), expected=knot1, tol=1e-5_rk, msg="test_nurbs_surface: 34")

call ut%check(res=nurbs%get_knot(1,1), expected=knot1(1), tol=1e-5_rk, msg="test_nurbs_surface: 35")
call ut%check(res=bsp%get_knot(1,1), expected=knot1(1), tol=1e-5_rk, msg="test_nurbs_surface: 36")

! call ut%check(res=nurbs%get_ng(), expected=size(Xg,1), msg="test_nurbs_surface: 37")
! call ut%check(res=bsp%get_ng(), expected=size(Xgb,1), msg="test_nurbs_surface: 38")

call ut%check(res=nurbs%get_degree(1), expected=1, msg="test_nurbs_surface: 39")
call ut%check(res=bsp%get_degree(1), expected=1, msg="test_nurbs_surface: 40")

call ut%check(res=nurbs%get_multiplicity(1), expected=[2,2], msg="test_nurbs_surface: 41")
call ut%check(res=bsp%get_multiplicity(1), expected=[2,2], msg="test_nurbs_surface: 42")

call ut%check(res=nurbs%get_continuity(1), expected=[-1,-1], msg="test_nurbs_surface: 43")
call ut%check(res=bsp%get_continuity(1), expected=[-1,-1], msg="test_nurbs_surface: 44")

! call ut%check(res=nurbs%get_nc(), expected=size(Xc,1), msg="test_nurbs_surface: 45")
! call ut%check(res=bsp%get_nc(), expected=size(Xc,1), msg="test_nurbs_surface: 46")

call nurbs%cmp_nc()
call bsp%cmp_nc()

! call ut%check(res=nurbs%get_nc(), expected=size(Xc,1), msg="test_nurbs_surface: 47")
! call ut%check(res=bsp%get_nc(), expected=size(Xc,1), msg="test_nurbs_surface: 48")

elemConn = nurbs%cmp_elem_Xc_vis([1,1])
call nurbs%set_elem_Xc_vis(elemConn)
call ut%check(res=nurbs%get_elem_Xc_vis(), expected=elemConn, msg="test_nurbs_surface: 49")
deallocate(elemConn)
elemConn = nurbs%cmp_elem_Xc_vis()
call nurbs%set_elem_Xc_vis(elemConn)
call ut%check(res=nurbs%get_elem_Xc_vis(), expected=elemConn, msg="test_nurbs_surface: 50")
deallocate(elemConn)
elemConn = bsp%cmp_elem_Xc_vis([1,1])
call bsp%set_elem_Xc_vis(elemConn)
call ut%check(res=bsp%get_elem_Xc_vis(), expected=elemConn, msg="test_nurbs_surface: 51")
deallocate(elemConn)
elemConn = bsp%cmp_elem_Xc_vis()
call bsp%set_elem_Xc_vis(elemConn)
call ut%check(res=bsp%get_elem_Xc_vis(), expected=elemConn, msg="test_nurbs_surface: 52")
deallocate(elemConn)

elemConn = nurbs%cmp_elem_Xg_vis([1,1])
call nurbs%set_elem_Xg_vis(elemConn)
call ut%check(res=nurbs%get_elem_Xg_vis(), expected=elemConn, msg="test_nurbs_surface: 53")
deallocate(elemConn)
elemConn = nurbs%cmp_elem_Xg_vis()
call nurbs%set_elem_Xg_vis(elemConn)
call ut%check(res=nurbs%get_elem_Xg_vis(), expected=elemConn, msg="test_nurbs_surface: 54")
deallocate(elemConn)
elemConn = bsp%cmp_elem_Xg_vis([1,1])
call bsp%set_elem_Xg_vis(elemConn)
call ut%check(res=bsp%get_elem_Xg_vis(), expected=elemConn, msg="test_nurbs_surface: 55")
deallocate(elemConn)
elemConn = bsp%cmp_elem_Xg_vis()
call bsp%set_elem_Xg_vis(elemConn)
call ut%check(res=bsp%get_elem_Xg_vis(), expected=elemConn, msg="test_nurbs_surface: 56")
deallocate(elemConn)

elemConn = nurbs%cmp_elem()
call nurbs%set_elem(elemConn)
call ut%check(res=nurbs%get_elem(), expected=elemConn, msg="test_nurbs_surface: 57")
deallocate(elemConn)
elemConn = bsp%cmp_elem()
call bsp%set_elem(elemConn)
call ut%check(res=bsp%get_elem(), expected=elemConn, msg="test_nurbs_surface: 58")
deallocate(elemConn)

call nurbs%modify_Xc(Xc(1,1), 1,1)
call bsp%modify_Xc(Xc(1,1), 1,1)

call nurbs%modify_Wc(Wc(1),1)

call nurbs%create()
call bsp%create()

call ut%check(res=nurbs%get_Xg(), expected=Xg, tol=1e-5_rk, msg="test_nurbs_surface: 59")
call ut%check(res=bsp%get_Xg(), expected=Xgb, tol=1e-5_rk, msg="test_nurbs_surface: 60")

call nurbs%basis(res1=30, res2=30, Tgc=Tgc)
call bsp%basis(res1=30, res2=30, Tgc=Tgc)

call nurbs%basis(Xt=[0.0_rk, 0.0_rk], Tgc=Tgc1)
call bsp%basis(Xt=[0.0_rk, 0.0_rk], Tgc=Tgc1b)

call nurbs%basis(Xt1=[(real(i-1, rk) / real(30-1, rk), i=1, 30)], Xt2=[(real(i-1, rk) / real(30-1, rk), i=1, 30)], Tgc=Tgc)
call bsp%basis(Xt1=[(real(i-1, rk) / real(30-1, rk), i=1, 30)], Xt2=[(real(i-1, rk) / real(30-1, rk), i=1, 30)], Tgc=Tgc)

call nurbs%derivative(res1=30, res2=30, dTgc=dTgc, Tgc=Tgc)
call bsp%derivative(res1=30, res2=30, dTgc=dTgcb, Tgc=Tgcb)

call nurbs%derivative(&
Xt1=[(real(i-1, rk) / real(30-1, rk), i=1, 30)], Xt2=[(real(i-1, rk) / real(30-1, rk), i=1, 30)], dTgc=dTgc, Tgc=Tgc)
call bsp%derivative(&
Xt1=[(real(i-1, rk) / real(30-1, rk), i=1, 30)], Xt2=[(real(i-1, rk) / real(30-1, rk), i=1, 30)], dTgc=dTgcb, Tgc=Tgcb)

call nurbs%derivative(Xt=[0.0_rk,0.0_rk], dTgc=dTgc1b, Tgc=Tgc1b)
call bsp%derivative(Xt=[0.0_rk,0.0_rk], dTgc=dTgc1b, Tgc=Tgc1b)

call nurbs%derivative(Xt=[0.0_rk,0.0_rk], dTgc=dTgc1b, Tgc=Tgc1b, elem=[1,2,3])
call bsp%derivative(Xt=[0.0_rk,0.0_rk], dTgc=dTgc1b, Tgc=Tgc1b, elem=[1,2,3])

call nurbs%derivative2(res1=30, res2=30, d2Tgc=d2Tgc, dTgc=dTgc, Tgc=Tgc)
call bsp%derivative2(res1=30, res2=30, d2Tgc=d2Tgcb, dTgc=dTgcb, Tgc=Tgcb)

call nurbs%derivative2(&
Xt1=[(real(i-1, rk) / real(30-1, rk), i=1, 30)], Xt2=[(real(i-1, rk) / real(30-1, rk), i=1, 30)],&
d2Tgc=d2Tgc, dTgc=dTgc, Tgc=Tgc)
call bsp%derivative2(&
Xt1=[(real(i-1, rk) / real(30-1, rk), i=1, 30)], Xt2=[(real(i-1, rk) / real(30-1, rk), i=1, 30)],&
d2Tgc=d2Tgcb, dTgc=dTgcb, Tgc=Tgcb)

call nurbs%derivative2(Xt=[0.0_rk,0.0_rk], d2Tgc=d2Tgc1, dTgc=dTgc1b, Tgc=Tgc1b)
call bsp%derivative2(Xt=[0.0_rk,0.0_rk], d2Tgc=d2Tgc1b, dTgc=dTgc1b, Tgc=Tgc1b)

call nurbs%derivative2(Xt=[0.0_rk,0.0_rk], d2Tgc=d2Tgc1, dTgc=dTgc1b, Tgc=Tgc1b)
call bsp%derivative2(Xt=[0.0_rk,0.0_rk], d2Tgc=d2Tgc1b, dTgc=dTgc1b, Tgc=Tgc1b)

call nurbs%rotate_Xc(45.0_rk, 0.0_rk, 0.0_rk)
call nurbs%rotate_Xc(-45.0_rk, 0.0_rk, 0.0_rk)

call bsp%rotate_Xc(45.0_rk, 0.0_rk, 0.0_rk)
call bsp%rotate_Xc(-45.0_rk, 0.0_rk, 0.0_rk)

call ut%check(res=nurbs%get_Xc(), expected=Xc, tol=1e-5_rk, msg="test_nurbs_surface: 61")
call ut%check(res=bsp%get_Xc(), expected=Xc, tol=1e-5_rk, msg="test_nurbs_surface: 62")

call nurbs%rotate_Xc(0.0_rk, 45.0_rk, 0.0_rk)
call nurbs%rotate_Xc(0.0_rk, -45.0_rk, 0.0_rk)

call bsp%rotate_Xc(0.0_rk, 45.0_rk, 0.0_rk)
call bsp%rotate_Xc(0.0_rk, -45.0_rk, 0.0_rk)

call ut%check(res=nurbs%get_Xc(), expected=Xc, tol=1e-5_rk, msg="test_nurbs_surface: 63")
call ut%check(res=bsp%get_Xc(), expected=Xc, tol=1e-5_rk, msg="test_nurbs_surface: 64")

call nurbs%rotate_Xc(0.0_rk, 0.0_rk, 45.0_rk)
call nurbs%rotate_Xc(0.0_rk, 0.0_rk, -45.0_rk)

call bsp%rotate_Xc(0.0_rk, 0.0_rk, 45.0_rk)
call bsp%rotate_Xc(0.0_rk, 0.0_rk, -45.0_rk)

call ut%check(res=nurbs%get_Xc(), expected=Xc, tol=1e-5_rk, msg="test_nurbs_surface: 65")
call ut%check(res=bsp%get_Xc(), expected=Xc, tol=1e-5_rk, msg="test_nurbs_surface: 66")

call nurbs%rotate_Xg(45.0_rk, 0.0_rk, 0.0_rk)
call nurbs%rotate_Xg(-45.0_rk, 0.0_rk, 0.0_rk)

call bsp%rotate_Xg(45.0_rk, 0.0_rk, 0.0_rk)
call bsp%rotate_Xg(-45.0_rk, 0.0_rk, 0.0_rk)

call ut%check(res=nurbs%get_Xg(), expected=Xg, tol=1e-5_rk, msg="test_nurbs_surface: 67")
call ut%check(res=bsp%get_Xg(), expected=Xgb, tol=1e-5_rk, msg="test_nurbs_surface: 68")

call nurbs%rotate_Xg(0.0_rk, 45.0_rk, 0.0_rk)
call nurbs%rotate_Xg(0.0_rk, -45.0_rk, 0.0_rk)

call bsp%rotate_Xg(0.0_rk, 45.0_rk, 0.0_rk)
call bsp%rotate_Xg(0.0_rk, -45.0_rk, 0.0_rk)

call ut%check(res=nurbs%get_Xg(), expected=Xg, tol=1e-5_rk, msg="test_nurbs_surface: 69")
call ut%check(res=bsp%get_Xg(), expected=Xgb, tol=1e-5_rk, msg="test_nurbs_surface: 70")

call nurbs%rotate_Xg(0.0_rk, 0.0_rk, 45.0_rk)
call nurbs%rotate_Xg(0.0_rk, 0.0_rk, -45.0_rk)

call bsp%rotate_Xg(0.0_rk, 0.0_rk, 45.0_rk)
call bsp%rotate_Xg(0.0_rk, 0.0_rk, -45.0_rk)

call ut%check(res=nurbs%get_Xg(), expected=Xg, tol=1e-5_rk, msg="test_nurbs_surface: 71")
call ut%check(res=bsp%get_Xg(), expected=Xgb, tol=1e-5_rk, msg="test_nurbs_surface: 72")

call nurbs%translate_Xc([5.0_rk, 5.0_rk, 5.0_rk])
call nurbs%translate_Xc([-5.0_rk, -5.0_rk, -5.0_rk])

call bsp%translate_Xc([5.0_rk, 5.0_rk, 5.0_rk])
call bsp%translate_Xc([-5.0_rk, -5.0_rk, -5.0_rk])

call ut%check(res=nurbs%get_Xc(), expected=Xc, tol=1e-5_rk, msg="test_nurbs_surface: 73")
call ut%check(res=bsp%get_Xc(), expected=Xc, tol=1e-5_rk, msg="test_nurbs_surface: 74")

call nurbs%translate_Xg([5.0_rk, 5.0_rk, 5.0_rk])
call nurbs%translate_Xg([-5.0_rk, -5.0_rk, -5.0_rk])

call bsp%translate_Xg([5.0_rk, 5.0_rk, 5.0_rk])
call bsp%translate_Xg([-5.0_rk, -5.0_rk, -5.0_rk])

call ut%check(res=nurbs%get_Xg(), expected=Xg, tol=1e-5_rk, msg="test_nurbs_surface: 75")
call ut%check(res=bsp%get_Xg(), expected=Xgb, tol=1e-5_rk, msg="test_nurbs_surface: 76")

call nurbs%export_Xc("vtk/test_nurbs_surface_Xc.vtk")
call nurbs%export_Xg("vtk/test_nurbs_surface_Xg.vtk")

call bsp%export_Xc("vtk/test_nurbs_surface_Xc.vtk")
call bsp%export_Xg("vtk/test_nurbs_surface_Xg.vtk")

call nurbs%insert_knots(1, [0.25_rk, 0.75_rk], [1,1])
call nurbs%insert_knots(2, [0.25_rk, 0.75_rk], [1,1])

Expand All @@ -61,8 +312,8 @@ program test_nurbs_surface
call nurbs%create()
call bsp%create()

call ut%check(res=nurbs%get_Xg(), expected=Xg, tol=1e-5_rk, msg="test_nurbs_surface: 11")
call ut%check(res=bsp%get_Xg(), expected=Xgb, tol=1e-5_rk, msg="test_nurbs_surface: 12")
call ut%check(res=nurbs%get_Xg(), expected=Xg, tol=1e-5_rk, msg="test_nurbs_surface: 77")
call ut%check(res=bsp%get_Xg(), expected=Xgb, tol=1e-5_rk, msg="test_nurbs_surface: 78")

call nurbs%elevate_degree(1, 2)
call nurbs%elevate_degree(2, 2)
Expand All @@ -73,8 +324,8 @@ program test_nurbs_surface
call nurbs%create()
call bsp%create()

call ut%check(res=nurbs%get_Xg(), expected=Xg, tol=1e-5_rk, msg="test_nurbs_surface: 13")
call ut%check(res=bsp%get_Xg(), expected=Xgb, tol=1e-5_rk, msg="test_nurbs_surface: 14")
call ut%check(res=nurbs%get_Xg(), expected=Xg, tol=1e-5_rk, msg="test_nurbs_surface: 79")
call ut%check(res=bsp%get_Xg(), expected=Xgb, tol=1e-5_rk, msg="test_nurbs_surface: 80")

call nurbs%remove_knots(1, [0.25_rk, 0.75_rk], [2,1])
call nurbs%remove_knots(2, [0.25_rk, 0.75_rk], [2,1])
Expand All @@ -85,14 +336,15 @@ program test_nurbs_surface
call nurbs%create()
call bsp%create()

call ut%check(res=nurbs%get_Xg(), expected=Xg, tol=1e-5_rk, msg="test_nurbs_surface: 15")
call ut%check(res=bsp%get_Xg(), expected=Xgb, tol=1e-5_rk, msg="test_nurbs_surface: 16")
call ut%check(res=nurbs%get_Xg(), expected=Xg, tol=1e-5_rk, msg="test_nurbs_surface: 81")
call ut%check(res=bsp%get_Xg(), expected=Xgb, tol=1e-5_rk, msg="test_nurbs_surface: 82")

call nurbs%cmp_area(area)
call bsp%cmp_area(areab)

call ut%check(res=area, expected=25.0_rk, tol=1e-5_rk, msg="test_nurbs_surface: 17")
call ut%check(res=areab, expected=25.0_rk, tol=1e-5_rk, msg="test_nurbs_surface: 18")
call nurbs%set_tetragon([0.0_rk, 2.0_rk], [2,2])
call bsp%set_tetragon([0.0_rk, 2.0_rk], [2,2], [1.0_rk,1.0_rk,0.9_rk,0.9_rk])
call nurbs%set_ring([0.0_rk, 0.0_rk, 0.0_rk], 1.0_rk, 2.0_rk)
call nurbs%set_half_ring([0.0_rk, 0.0_rk, 0.0_rk], 1.0_rk, 2.0_rk)
call nurbs%set_C([0.0_rk, 0.0_rk, 0.0_rk], 1.0_rk, 2.0_rk)

call nurbs%finalize()
call bsp%finalize()
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