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Open CASCADE Technology
6.7.1
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Define an Constant Section Law
More...
#include <GeomFill_UniformSection.hxx>

Public Member Functions | |
| GeomFill_UniformSection (const Handle< Geom_Curve > &C, const Standard_Real FirstParameter=0.0, const Standard_Real LastParameter=1.0) | |
Make an constant Law with C. <br> [First, Last] define law definition domain | |
| virtual Standard_Boolean | D0 (const Standard_Real Param, TColgp_Array1OfPnt &Poles, TColStd_Array1OfReal &Weigths) |
| compute the section for v = param More... | |
| virtual Standard_Boolean | D1 (const Standard_Real Param, TColgp_Array1OfPnt &Poles, TColgp_Array1OfVec &DPoles, TColStd_Array1OfReal &Weigths, TColStd_Array1OfReal &DWeigths) |
compute the first derivative in v direction of the <br>
section for v = param <br>
Warning : It used only for C1 or C2 aproximation | |
| virtual Standard_Boolean | D2 (const Standard_Real Param, TColgp_Array1OfPnt &Poles, TColgp_Array1OfVec &DPoles, TColgp_Array1OfVec &D2Poles, TColStd_Array1OfReal &Weigths, TColStd_Array1OfReal &DWeigths, TColStd_Array1OfReal &D2Weigths) |
compute the second derivative in v direction of the <br>
section for v = param <br>
Warning : It used only for C2 aproximation | |
| virtual Handle_Geom_BSplineSurface | BSplineSurface () const |
| give if possible an bspline Surface, like iso-v are the section. If it is not possible this methode have to get an Null Surface. Is it the default implementation. More... | |
| virtual void | SectionShape (Standard_Integer &NbPoles, Standard_Integer &NbKnots, Standard_Integer &Degree) const |
| get the format of an section More... | |
| virtual void | Knots (TColStd_Array1OfReal &TKnots) const |
| get the Knots of the section More... | |
| virtual void | Mults (TColStd_Array1OfInteger &TMults) const |
| get the Multplicities of the section More... | |
| virtual Standard_Boolean | IsRational () const |
| Returns if the sections are rationnal or not More... | |
| virtual Standard_Boolean | IsUPeriodic () const |
| Returns if the sections are periodic or not More... | |
| virtual Standard_Boolean | IsVPeriodic () const |
| Returns if the law isperiodic or not More... | |
| virtual Standard_Integer | NbIntervals (const GeomAbs_Shape S) const |
| Returns the number of intervals for continuity <S>. May be one if Continuity(me) >= <S> More... | |
| virtual void | Intervals (TColStd_Array1OfReal &T, const GeomAbs_Shape S) const |
Stores in <T> the parameters bounding the intervals <br>
of continuity <S>. <br>
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| virtual void | SetInterval (const Standard_Real First, const Standard_Real Last) |
| Sets the bounds of the parametric interval on the function This determines the derivatives in these values if the function is not Cn. More... | |
| virtual void | GetInterval (Standard_Real &First, Standard_Real &Last) const |
| Gets the bounds of the parametric interval on the function More... | |
| virtual void | GetDomain (Standard_Real &First, Standard_Real &Last) const |
Gets the bounds of the function parametric domain. <br> Warning: This domain it is not modified by the | |
| virtual void | GetTolerance (const Standard_Real BoundTol, const Standard_Real SurfTol, const Standard_Real AngleTol, TColStd_Array1OfReal &Tol3d) const |
| Returns the tolerances associated at each poles to reach in approximation, to satisfy: BoundTol error at the Boundary AngleTol tangent error at the Boundary (in radian) SurfTol error inside the surface. More... | |
| virtual gp_Pnt | BarycentreOfSurf () const |
Get the barycentre of Surface. <br>
An very poor estimation is sufficent. <br>
This information is usefull to perform well <br>
conditioned rational approximation. <br>
Warning: Used only if <me> IsRational | |
| virtual Standard_Real | MaximalSection () const |
Returns the length of the greater section. This <br>
information is usefull to G1's control. <br>
Warning: With an little value, approximation can be slower. | |
| virtual void | GetMinimalWeight (TColStd_Array1OfReal &Weigths) const |
Compute the minimal value of weight for each poles <br>
in all sections. <br>
This information is usefull to control error <br>
in rational approximation. <br>
Warning: Used only if <me> IsRational | |
| virtual Standard_Boolean | IsConstant (Standard_Real &Error) const |
| return True More... | |
| virtual Handle_Geom_Curve | ConstantSection () const |
Return the constant Section if <me> IsConstant. <br> | |
Public Member Functions inherited from GeomFill_SectionLaw | |
| virtual void | SetTolerance (const Standard_Real Tol3d, const Standard_Real Tol2d) |
Is usefull, if (me) have to run numerical <br>
algorithm to perform D0, D1 or D2 <br>
The default implementation make nothing. | |
| virtual Standard_Boolean | IsConicalLaw (Standard_Real &Error) const |
| Returns True if all section are circle, with same plane,same center and linear radius evolution Return False by Default. More... | |
| virtual Handle_Geom_Curve | CirclSection (const Standard_Real Param) const |
| Return the circle section at parameter , if <me> a IsConicalLaw More... | |
Public Member Functions inherited from MMgt_TShared | |
| virtual void | Delete () const |
| Memory deallocator for transient classes. More... | |
Public Member Functions inherited from Standard_Transient | |
| Standard_Transient () | |
| Empty constructor. More... | |
| Standard_Transient (const Standard_Transient &) | |
| Copy constructor – does nothing. More... | |
| Standard_Transient & | operator= (const Standard_Transient &) |
| Assignment operator, needed to avoid copying reference counter. More... | |
| virtual | ~Standard_Transient () |
| Destructor must be virtual. More... | |
| virtual void | ShallowDump (Standard_OStream &) const |
| virtual const Handle_Standard_Type & | DynamicType () const |
| Returns a type information object about this object. More... | |
| Standard_Boolean | IsInstance (const Handle_Standard_Type &theType) const |
| Returns a true value if this is an instance of Type. More... | |
| Standard_Boolean | IsInstance (const Standard_CString theTypeName) const |
| Returns a true value if this is an instance of TypeName. More... | |
| Standard_Boolean | IsKind (const Handle_Standard_Type &theType) const |
| Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More... | |
| Standard_Boolean | IsKind (const Standard_CString theTypeName) const |
| Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More... | |
| virtual Handle_Standard_Transient | This () const |
| Returns a Handle which references this object. Must never be called to objects created in stack. More... | |
| Standard_Integer | GetRefCount () const |
| Get the reference counter of this object. More... | |
Define an Constant Section Law
| GeomFill_UniformSection::GeomFill_UniformSection | ( | const Handle< Geom_Curve > & | C, |
| const Standard_Real | FirstParameter = 0.0, |
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| const Standard_Real | LastParameter = 1.0 |
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| ) |
Make an constant Law with C. <br>
[First, Last] define law definition domain
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virtual |
Get the barycentre of Surface. <br>
An very poor estimation is sufficent. <br>
This information is usefull to perform well <br>
conditioned rational approximation. <br>
Warning: Used only if <me> IsRational
Reimplemented from GeomFill_SectionLaw.
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give if possible an bspline Surface, like iso-v are the
section. If it is not possible this methode have to
get an Null Surface. Is it the default implementation.
Reimplemented from GeomFill_SectionLaw.
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virtual |
compute the section for v = param
Implements GeomFill_SectionLaw.
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compute the first derivative in v direction of the <br>
section for v = param <br>
Warning : It used only for C1 or C2 aproximation
Reimplemented from GeomFill_SectionLaw.
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compute the second derivative in v direction of the <br>
section for v = param <br>
Warning : It used only for C2 aproximation
Reimplemented from GeomFill_SectionLaw.
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Gets the bounds of the function parametric domain. <br>
Warning: This domain it is not modified by the
SetValue method
Implements GeomFill_SectionLaw.
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Gets the bounds of the parametric interval on
the function
Implements GeomFill_SectionLaw.
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Compute the minimal value of weight for each poles <br>
in all sections. <br>
This information is usefull to control error <br>
in rational approximation. <br>
Warning: Used only if <me> IsRational
Reimplemented from GeomFill_SectionLaw.
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virtual |
Returns the tolerances associated at each poles to
reach in approximation, to satisfy: BoundTol error
at the Boundary AngleTol tangent error at the
Boundary (in radian) SurfTol error inside the
surface.
Implements GeomFill_SectionLaw.
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virtual |
Stores in <T> the parameters bounding the intervals <br>
of continuity <S>. <br>
The array must provide enough room to accomodate
for the parameters. i.e. T.Length() > NbIntervals()
Implements GeomFill_SectionLaw.
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return True
Reimplemented from GeomFill_SectionLaw.
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Returns if the sections are rationnal or not
Implements GeomFill_SectionLaw.
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Returns if the sections are periodic or not
Implements GeomFill_SectionLaw.
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Returns if the law isperiodic or not
Implements GeomFill_SectionLaw.
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get the Knots of the section
Implements GeomFill_SectionLaw.
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Returns the length of the greater section. This <br>
information is usefull to G1's control. <br>
Warning: With an little value, approximation can be slower.
Implements GeomFill_SectionLaw.
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get the Multplicities of the section
Implements GeomFill_SectionLaw.
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Returns the number of intervals for continuity
<S>.
May be one if Continuity(me) >= <S>
Implements GeomFill_SectionLaw.
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get the format of an section
Implements GeomFill_SectionLaw.
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Sets the bounds of the parametric interval on
the function
This determines the derivatives in these values if the
function is not Cn.
Implements GeomFill_SectionLaw.
1.8.5