nurbs_surf Type Reference

Detailed Description

CAD surface class.

Inheritance diagram for nurbs_surf:

Public Member Functions
procedure(nurbs_dummy_eval), deferred	eval (self, pt, u, v)
	Parametric point evaluation.
procedure	eval (self, pt, u, v)
	Parametric point evaluation.
procedure(nurbs_dummy_grid), deferred	grid (self)
	Physical point location.
procedure	grid (self)
	Generate grid over surface domain.
procedure(nurbs_dummy_find), deferred	locate (self, pt, u, v, ierr)
	Physical point location.
procedure	locate (self, pt, u, v, ierr)
	Physical point location.
procedure(nurbs_dummy_unwrap), deferred	unwrap (self, u1, u2, v1, v2)
	Parametric point evaluation.
procedure	unwrap (self, u1, u2, v1, v2)
	Parametric point evaluation.
procedure(nurbs_dummy_wrap), deferred	wrap (self, u, v)
	Parametric point evaluation.
procedure	wrap (self, u, v)
	Physical point location.

Public Attributes
real(r8), dimension(3)	coord_scales = 1.d0
	Scaling for each coordinate.
real(r8), dimension(2, 2)	domain
	Extent in parametric domain.
integer(i4)	id
	Input ID of CAD object.
integer(i4), dimension(2)	nspan
	Size of span vectors.
logical, dimension(2)	periodic = .FALSE.
	Surface is periodic.
logical	planar = .FALSE.
	Surface is flat.
integer(i4)	reflect = -1
	Index to reflect.
real(r8), dimension(3, nurbs_ngrid, nurbs_ngrid)	rgrid
	Object mesh.
integer(i4)	sid
	Surface ID in OFT indexing.
logical, dimension(2, 2)	singular = .FALSE.
	Surface edge is singular.
real(r8), dimension(:), pointer	span1
	Currently unused.
real(r8), dimension(:), pointer	span2
	Currently unused.

Member Function/Subroutine Documentation

eval() [1/2]

procedure(nurbs_dummy_eval), deferred eval ( class(nurbs_entity), intent(in)  self, real(r8), dimension(3), intent(out)  pt, real(r8), intent(in)  u, real(r8), intent(in)  v  )

pure virtualinherited

Parametric point evaluation.

Parameters

[in]	self	NURBS object
[out]	pt	Evaluated position [3]
[in]	u	Parametric coordinate 1
[in]	v	Parametric coordinate 2 (unused if curve)

eval() [2/2]

procedure eval	(	class(nurbs_surf), intent(in)	self,
		real(r8), dimension(3), intent(out)	pt,
		real(r8), intent(in)	u,
		real(r8), intent(in)	v
	)

Parametric point evaluation.

• (u,v) -> (x,y,z)

  Parameters

  [in]	self	Surface object
  [out]	pt	Physical position [3]
  [in]	u	Parametric coordinate 1
  [in]	v	Parametric coordinate 2

grid() [1/2]

procedure(nurbs_dummy_grid), deferred grid ( class(nurbs_entity), intent(inout)  self )

pure virtualinherited

Physical point location.

Parameters

[in,out]

self

NURBS object

grid() [2/2]

procedure grid

(

class(nurbs_surf), intent(inout)

self

)

Generate grid over surface domain.

Parameters

[in,out]

self

Surface object

locate() [1/2]

procedure(nurbs_dummy_find), deferred locate ( class(nurbs_entity), intent(in), target  self, real(r8), dimension(3), intent(in)  pt, real(r8), intent(out)  u, real(r8), intent(out)  v, integer(i4), intent(out)  ierr  )

pure virtualinherited

Physical point location.

Parameters

[in]	self	NURBS object
[in]	pt	Test position [3]
[out]	u	Parametric coordinate 1
[out]	v	Parametric coordinate 2 (unused if curve)
[out]	ierr	Error status (point not found if ierr<0)

locate() [2/2]

procedure locate	(	class(nurbs_surf), intent(in), target	self,
		real(r8), dimension(3), intent(in)	pt,
		real(r8), intent(out)	u,
		real(r8), intent(out)	v,
		integer(i4), intent(out)	ierr
	)

Physical point location.

• (x,y,z) -> (u,v)

  Parameters

  [in]	self	Surface object
  [in]	pt	Position vector [3]
  [out]	u	Parametric coordinate 1
  [out]	v	Parametric coordinate 2

unwrap() [1/2]

procedure(nurbs_dummy_unwrap), deferred unwrap ( class(nurbs_entity), intent(in)  self, real(r8), intent(inout)  u1, real(r8), intent(inout)  u2, real(r8), intent(inout)  v1, real(r8), intent(inout)  v2  )

pure virtualinherited

Parametric point evaluation.

Parameters

[in]	self	NURBS object
[in,out]	u1	Parametric coordinate 1 of first point
[in,out]	u2	Parametric coordinate 2 of first point (unused if curve)
[in,out]	v1	Parametric coordinate 1 of second point
[in,out]	v2	Parametric coordinate 2 of second point (unused if curve)

unwrap() [2/2]

procedure unwrap	(	class(nurbs_surf), intent(in)	self,
		real(r8), intent(inout)	u1,
		real(r8), intent(inout)	u2,
		real(r8), intent(inout)	v1,
		real(r8), intent(inout)	v2
	)

Parametric point evaluation.

• Example: For a periodic domain of \( [0,2 \pi] (3 \pi/4,0) -> (-\pi/4,0) \)

  Parameters

  [in]	self	Surface object
  [in,out]	u1	Parametric coordinate 1 of first point
  [in,out]	u2	Parametric coordinate 2 of first point
  [in,out]	v1	Parametric coordinate 1 of second point
  [in,out]	v2	Parametric coordinate 2 of second point

wrap() [1/2]

procedure(nurbs_dummy_wrap), deferred wrap ( class(nurbs_entity), intent(in)  self, real(r8), intent(inout)  u, real(r8), intent(inout)  v  )

pure virtualinherited

Parametric point evaluation.

Parameters

[in]	self	NURBS object
[in,out]	u	Parametric coordinate 1
[in,out]	v	Parametric coordinate 2 (unused if curve)

wrap() [2/2]

procedure wrap	(	class(nurbs_surf), intent(in)	self,
		real(r8), intent(inout)	u,
		real(r8), intent(inout)	v
	)

Physical point location.

• Example: For a periodic domain of \( [0,2 \pi] (-\pi/4,0) -> (3 \pi/4,0) \)

  Parameters

  [in]	self	Surface object
  [in,out]	u	Parametric coordinate 1
  [in,out]	v	Parametric coordinate 2

Member Data Documentation

coord_scales

real(r8), dimension(3) coord_scales = 1.d0

inherited

Scaling for each coordinate.

domain

real(r8), dimension(2,2) domain

Extent in parametric domain.

id

integer(i4) id

inherited

Input ID of CAD object.

nspan

integer(i4), dimension(2) nspan

Size of span vectors.

periodic

logical, dimension(2) periodic = .FALSE.

Surface is periodic.

planar

logical planar = .FALSE.

Surface is flat.

reflect

integer(i4) reflect = -1

inherited

Index to reflect.

rgrid

real(r8), dimension(3,nurbs_ngrid,nurbs_ngrid) rgrid

Object mesh.

sid

integer(i4) sid

Surface ID in OFT indexing.

singular

logical, dimension(2,2) singular = .FALSE.

Surface edge is singular.

span1

real(r8), dimension(:), pointer span1

Currently unused.

span2

real(r8), dimension(:), pointer span2

Currently unused.

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The documentation for this type was generated from the following file:

• /home/runner/work/OpenFUSIONToolkit/OpenFUSIONToolkit/src/grid/nurbs_cad.F90