nurbs_cad.F90 File Reference

#include "local.h"

Data Types
type	nurbs_curve
	CAD curve class. More...
interface	nurbs_curve_domain
	Get the parametric domain of a NURBS curve. More...
interface	nurbs_curve_linear
	Test if NURBS curve is straight. More...
interface	nurbs_curve_name
	Get the name of a OpenNURBS curve. More...
interface	nurbs_curve_periodic
	Test periodicity of a NURBS curve. More...
interface	nurbs_dummy_eval
	Evaluate position from a NURBS object. More...
interface	nurbs_dummy_find
	Find the nearest location on a NURBS object to a given point. More...
interface	nurbs_dummy_grid
	Create a grid of points evenly spaced in parametric space. More...
interface	nurbs_dummy_unwrap
	Unwrap the periodic coordinates of a NURBS object to avoid parameter cuts. More...
interface	nurbs_dummy_wrap
	Wrap the periodic coordinates of a NURBS object into a single span. More...
type	nurbs_entity
	CAD entity class. More...
type	nurbs_entity_ptr
	List of CAD entities. More...
interface	nurbs_eval_curve
	Evalute the position along a NURBS curve. More...
interface	nurbs_eval_surf
	Evalute the position on a NURBS surface. More...
interface	nurbs_finalize
	Finalize the OpenNURBS library. More...
interface	nurbs_get_count
	Get a count of OpenNURBS objects in current file. More...
interface	nurbs_init
	Initialize the OpenNURBS library. More...
interface	nurbs_read_in
	Read-in a OpenNURBS *.3dm geometry file set objects as active. More...
type	nurbs_surf
	CAD surface class. More...
interface	nurbs_surf_domain
	Get the parametric domain of a NURBS surface. More...
interface	nurbs_surf_name
	Get the name of a OpenNURBS surface. More...
interface	nurbs_surf_periodic
	Test periodicity of a NURBS surface. More...
interface	nurbs_surf_planar
	Test if NURBS surface is planar. More...
interface	nurbs_surf_singular
	Test if edges of a NURBS surface are degenerate. More...

Modules
module	nurbs_cad
	CAD utility functions and class definition for reconstruction of non-uniform rational bezier CAD objects.

Functions/Subroutines
subroutine	nurbs_cmid_error (m, n, uv, err, iflag)
	Evalute the error between a curve point and the current active points used in a 2 point minimization.
subroutine	nurbs_curve_eval (self, pt, u, v)
	Map the parametric position on a curve to physical coordinates.
subroutine	nurbs_curve_find (self, pt, u, v, ierr)
	Find the parametric representation of a boundary point in CAD representation on a curve.
subroutine	nurbs_curve_grid (self)
	Evalute a grid of points evenly spaced in parametric space.
subroutine, public	nurbs_curve_midpoint (self, pt, pt1, pt2, wt1, wt2, ierr)
	Compute the weighted midpoint of a curve edge.
subroutine	nurbs_curve_unwrap (self, u1, u2, v1, v2)
	Unwrap the coordinate of a periodic NURBS curve to avoid parameter cuts.
subroutine	nurbs_curve_wrap (self, u, v)
	Wrap the coordinate of a periodic NURBS curve into a single span.
subroutine	nurbs_scenter_error (m, n, uv, err, iflag)
	Evalute the error between a surface point and the current active points used in a 3 point minimization.
subroutine	nurbs_smid_error (m, n, uv, err, iflag)
	Evalute the error between a surface point and the current active points used in a 2 point minimization.
logical function	nurbs_surf_atsingular (self, u, v)
	Detect if parametric location is at singular point.
subroutine, public	nurbs_surf_avg (self, n, uin, vin, uavg, vavg)
	Needs docs?
subroutine, public	nurbs_surf_center (self, pt, pt1, pt2, pt3, wt1, wt2, wt3, ierr)
	Compute the weighted center point of a surface triangle.
subroutine	nurbs_surf_error (m, n, uv, err, iflag)
	Evalute the error between a surface point and the current active point used in a minimization.
subroutine	nurbs_surf_eval (self, pt, u, v)
	Map the parametric position on a surface to physical coordinates.
subroutine	nurbs_surf_find (self, pt, u, v, ierr)
	Find the parametric representation of a boundary point in CAD representation on a surface.
subroutine	nurbs_surf_grid (self)
	Evalute a grid of points evenly spaced in parametric space.
subroutine, public	nurbs_surf_midpoint (self, pt, pt1, pt2, wt1, wt2, ierr)
	Compute the weighted midpoint of a surface edge.
subroutine	nurbs_surf_unwrap (self, u1, u2, v1, v2)
	Unwrap the periodic coordinates of a NURBS surface to avoid parameter cuts.
subroutine	nurbs_surf_wrap (self, u, v)
	Wrap the periodic coordinates of a NURBS surface into a single span.

Variables
class(nurbs_curve), pointer	active_curve => NULL()
	Active curve for MINPACK fitting.
real(r8), dimension(3, 3)	active_endpts
	Active constraint points for MINPACK fitting.
real(r8), dimension(3)	active_pt
	Active fit point for MINPACK fitting.
class(nurbs_surf), pointer	active_surf => NULL()
	Active surface for MINPACK fitting.
real(r8), dimension(3)	active_wts
	Active constraint weights for MINPACK fitting.
integer(i4), parameter	nurbs_ngrid = 20
	Number of grid points to use for object meshes.
real(r8), parameter	nurbs_singstep = .1d0
	Distance to offset guesses from singular edges.