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Public Member Functions
GeomFill_ConstrainedFilling Class Reference

An algorithm for constructing a BSpline surface filled
from a series of boundaries which serve as path
constraints and optionally, as tangency constraints.
The algorithm accepts three or four curves as the
boundaries of the target surface.
A ConstrainedFilling object provides a framework for:
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#include <GeomFill_ConstrainedFilling.hxx>

Public Member Functions

DEFINE_STANDARD_ALLOC GeomFill_ConstrainedFilling (const Standard_Integer MaxDeg, const Standard_Integer MaxSeg)
 Constructs an empty framework for filling a surface from boundaries.
The boundaries of the surface will be defined, and the
surface will be built by using the function Init.
The surface will respect the following constraints:

void Init (const Handle< GeomFill_Boundary > &B1, const Handle< GeomFill_Boundary > &B2, const Handle< GeomFill_Boundary > &B3, const Standard_Boolean NoCheck=Standard_False)
void Init (const Handle< GeomFill_Boundary > &B1, const Handle< GeomFill_Boundary > &B2, const Handle< GeomFill_Boundary > &B3, const Handle< GeomFill_Boundary > &B4, const Standard_Boolean NoCheck=Standard_False)
 Constructs a BSpline surface filled from the series of
boundaries B1, B2, B3 and, if need be, B4, which serve:

void SetDomain (const Standard_Real l, const Handle< GeomFill_BoundWithSurf > &B)
 Allows to modify domain on witch the blending function
associated to the constrained boundary B will propag
the influence of the field of tangency. Can be
usefull to reduce influence of boundaries on whitch
the Coons compatibility conditions are not respected.
l is a relative value of the parametric range of B.
Default value for l is 1 (used in Init).
Warning: Must be called after Init with a constrained boundary
used in the call to Init.

void ReBuild ()
 Computes the new poles of the surface using the new
blending functions set by several calls to SetDomain.

Handle_GeomFill_Boundary Boundary (const Standard_Integer I) const
 Returns the bound of index i after sort.

Handle_Geom_BSplineSurface Surface () const
 Returns the BSpline surface after computation of the fill by this framework.

Standard_Integer Eval (const Standard_Real W, const Standard_Integer Ord, Standard_Real &Result) const
 Internal use for Advmath approximation call.

void CheckCoonsAlgPatch (const Standard_Integer I)
 Computes the fields of tangents on 30 points along the
bound I, these are not the constraint tangents but
gives an idea of the coonsAlgPatch regularity.

void CheckTgteField (const Standard_Integer I)
 Computes the fields of tangents and normals on 30
points along the bound I, draw them, and computes the
max dot product that must be near than 0.

void CheckApprox (const Standard_Integer I)
 Computes values and normals along the bound I and
compare them to the approx result curves (bound and
tgte field) , draw the normals and tangents.

void CheckResult (const Standard_Integer I)
 Computes values and normals along the bound I on both
constraint surface and result surface, draw the
normals, and computes the max distance between values
and the max angle between normals.


Detailed Description


Constructor & Destructor Documentation

  • its degree will not be greater than MaxDeg
  • the maximum number of segments MaxSeg which
    BSpline surfaces can have.

Member Function Documentation

Handle_GeomFill_Boundary GeomFill_ConstrainedFilling::Boundary ( const Standard_Integer  I) const
  • as path constraints
  • and optionally, as tangency constraints if they are
    GeomFill_BoundWithSurf curves.
    The boundaries may be given in any order: they are
    classified and if necessary, reversed and reparameterized.
    The surface will also respect the following constraints:
  • its degree will not be greater than the maximum
    degree defined at the time of construction of this framework, and
  • the maximum number of segments MaxSeg which BSpline surfaces can have
Handle_Geom_BSplineSurface GeomFill_ConstrainedFilling::Surface ( ) const

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