OCC.ChFi3d module

class ChFi3d_Builder(*args, **kwargs)

Bases: object

Abscissa()
  • returns the abscissa of the vertex V on the contour of index IC.
Parameters:
  • IC (int) –
  • V (TopoDS_Vertex &) –
Return type:

float
BadShape()
  • if (HasResult()) returns partial result if (!HasResult())
Return type:TopoDS_Shape
Builder()
  • Returns the Builder of topologic operations.
Return type:Handle_TopOpeBRepBuild_HBuilder
Closed()
  • returns true if the contour of index IC is closed
Parameters:IC (int) –
Return type:bool
ClosedAndTangent()
  • returns true if the contour of index IC is closed an tangent.
Parameters:IC (int) –
Return type:bool
Compute()
  • general calculation of geometry on all edges, topologic reconstruction.
Return type:None
ComputedSurface()
  • Returns the IS’th surface calculated on the contour IC.
Parameters:
Return type:

Handle_Geom_Surface
Contains()
  • gives the number of the contour containing E or 0 if E does not belong to any contour.
Parameters:E (TopoDS_Edge &) –
Return type:int
  • gives the number of the contour containing E or 0 if E does not belong to any contour. Sets in IndexInSpine the index of E in the contour if it’s found
Parameters:
  • E (TopoDS_Edge &) –
  • IndexInSpine (int &) –
Return type:

int
Delete()
Return type:void
FaultyContour()
  • Returns the number of I’th contour on which the calculation has failed.
Parameters:I (int) –
Return type:int
FaultyVertex()
  • Returns the IV’th vertex on which the calculation has failed.
Parameters:IV (int) –
Return type:TopoDS_Vertex
FirstVertex()
  • returns the First vertex V of the contour of index IC.
Parameters:IC (int) –
Return type:TopoDS_Vertex
Generated()
  • Advanced function for the history
Parameters:EouV (TopoDS_Shape &) –
Return type:TopTools_ListOfShape
HasResult()
  • returns True if a partial result has been calculated
Return type:bool
IsDone()
  • returns True if the computation is success
Return type:bool
LastVertex()
  • returns the Last vertex V of the contour of index IC.
Parameters:IC (int) –
Return type:TopoDS_Vertex
Length()
  • returns the length of the contour of index IC.
Parameters:IC (int) –
Return type:float
NbComputedSurfaces()
  • Returns the number of surfaces calculated on the contour IC.
Parameters:IC (int) –
Return type:int
NbElements()
  • gives the number of disjoint contours on which the fillets are calculated
Return type:int
NbFaultyContours()
  • Returns the number of contours on which the calculation has failed.
Return type:int
NbFaultyVertices()
  • Returns the number of vertices on which the calculation has failed.
Return type:int
PerformTwoCornerbyInter()
Parameters:Index (int) –
Return type:bool
RelativeAbscissa()
  • returns the relative abscissa([0.,1.]) of the vertex V on the contour of index IC.
Parameters:
  • IC (int) –
  • V (TopoDS_Vertex &) –
Return type:

float
Remove()
  • extracts from the list the contour containing edge E.
Parameters:E (TopoDS_Edge &) –
Return type:None
Reset()
  • Reset all results of compute and returns the algorythm in the state of the last acquisition to enable modification of contours or areas.
Return type:None
SetContinuity()
Parameters:
  • InternalContinuity (GeomAbs_Shape) –
  • AngularTolerance (float) –
Return type:

None
SetParams()
Parameters:
Return type:

None
Shape()
  • if (Isdone()) makes the result. if (!Isdone())
Return type:TopoDS_Shape
SplitKPart()
  • Method, implemented in the inheritants, calculates the elements of construction of the surface (fillet or chamfer).
Parameters:
  • Data (Handle_ChFiDS_SurfData &) –
  • SetData (ChFiDS_SequenceOfSurfData &) –
  • Spine (Handle_ChFiDS_Spine &) –
  • Iedge (int) –
  • S1 (Handle_Adaptor3d_HSurface &) –
  • I1 (Handle_Adaptor3d_TopolTool &) –
  • S2 (Handle_Adaptor3d_HSurface &) –
  • I2 (Handle_Adaptor3d_TopolTool &) –
  • Intf (bool) –
  • Intl (bool) –
Return type:

bool
StripeStatus()
  • for the stripe IC ,indication on the cause of failure WalkingFailure,TwistedSurface,Error, Ok
Parameters:IC (int) –
Return type:ChFiDS_ErrorStatus
Value()
  • gives the n’th set of edges (contour) if I >NbElements()
Parameters:I (int) –
Return type:Handle_ChFiDS_Spine
thisown

The membership flag

class ChFi3d_ChBuilder(*args)

Bases: OCC.ChFi3d.ChFi3d_Builder

  • initializes the Builder with the Shape <S> for the computation of chamfers
Parameters:
  • S (TopoDS_Shape &) –
  • Ta (float) – default value is 1.0e-2
Return type:

None
Add()
  • initializes a contour with the edge <E> as first (the next are found by propagation ). The two distances (parameters of the chamfer) must be set after. if the edge <E> has more than 2 adjacent faces
Parameters:E (TopoDS_Edge &) –
Return type:None
  • initializes a new contour with the edge <E> as first (the next are found by propagation ), and the distance <Dis> if the edge <E> has more than 2 adjacent faces
Parameters:
  • Dis (float) –
  • E (TopoDS_Edge &) –
  • F (TopoDS_Face &) –
Return type:

None
  • initializes a new contour with the edge <E> as first (the next are found by propagation ), and the distance <Dis1> and <Dis2> if the edge <E> has more than 2 adjacent faces
Parameters:
  • Dis1 (float) –
  • Dis2 (float) –
  • E (TopoDS_Edge &) –
  • F (TopoDS_Face &) –
Return type:

None
AddDA()
  • initializes a new contour with the edge <E> as first (the next are found by propagation ), and the distance <Dis1> and <Angle> if the edge <E> has more than 2 adjacent faces
Parameters:
  • Dis (float) –
  • Angle (float) –
  • E (TopoDS_Edge &) –
  • F (TopoDS_Face &) –
Return type:

None
Dists()
  • gives the distances <Dis1> and <Dis2> of the fillet contour of index <IC> in the DS
Parameters:
  • IC (int) –
  • Dis1 (float &) –
  • Dis2 (float &) –
Return type:

None
FindChoiceDistAngle()
Parameters:
  • Choice (int) –
  • DisOnF1 (bool) –
Return type:

int
GetDist()
  • gives the distances <Dis> of the fillet contour of index <IC> in the DS
Parameters:
  • IC (int) –
  • Dis (float &) –
Return type:

None
GetDistAngle()
  • gives the distances <Dis> and <Angle> of the fillet contour of index <IC> in the DS
Parameters:
  • IC (int) –
  • Dis (float &) –
  • Angle (float &) –
  • DisOnFace1 (bool) –
Return type:

None
IsChamfer()
  • renvoi la methode des chanfreins utilisee
Parameters:IC (int) –
Return type:ChFiDS_ChamfMethod
NbSurf()
Parameters:IC (int) –
Return type:int
PerformSurf()
  • Methode, implemented in inheritants, calculates the elements of construction of the surface (fillet or chamfer).
Parameters:
  • Data (ChFiDS_SequenceOfSurfData &) –
  • Guide (Handle_ChFiDS_HElSpine &) –
  • Spine (Handle_ChFiDS_Spine &) –
  • Choix (int) –
  • S1 (Handle_BRepAdaptor_HSurface &) –
  • I1 (Handle_Adaptor3d_TopolTool &) –
  • S2 (Handle_BRepAdaptor_HSurface &) –
  • I2 (Handle_Adaptor3d_TopolTool &) –
  • MaxStep (float) –
  • Fleche (float) –
  • TolGuide (float) –
  • First (float &) –
  • Last (float &) –
  • Inside (bool) –
  • Appro (bool) –
  • Forward (bool) –
  • RecOnS1 (bool) –
  • RecOnS2 (bool) –
  • Soldep (math_Vector &) –
  • Intf (int &) –
  • Intl (int &) –
Return type:

bool
  • Method, implemented in the inheritants, calculates the elements of construction of the surface (fillet or chamfer) contact edge/face.
Parameters:
  • Data (ChFiDS_SequenceOfSurfData &) –
  • Guide (Handle_ChFiDS_HElSpine &) –
  • Spine (Handle_ChFiDS_Spine &) –
  • Choix (int) –
  • S1 (Handle_BRepAdaptor_HSurface &) –
  • I1 (Handle_Adaptor3d_TopolTool &) –
  • PC1 (Handle_BRepAdaptor_HCurve2d &) –
  • Sref1 (Handle_BRepAdaptor_HSurface &) –
  • PCref1 (Handle_BRepAdaptor_HCurve2d &) –
  • Decroch1 (bool) –
  • S2 (Handle_BRepAdaptor_HSurface &) –
  • I2 (Handle_Adaptor3d_TopolTool &) –
  • Or2 (TopAbs_Orientation) –
  • MaxStep (float) –
  • Fleche (float) –
  • TolGuide (float) –
  • First (float &) –
  • Last (float &) –
  • Inside (bool) –
  • Appro (bool) –
  • Forward (bool) –
  • RecP (bool) –
  • RecS (bool) –
  • RecRst (bool) –
  • Soldep (math_Vector &) –
Return type:

void
  • Method, implemented in inheritants, calculates the elements of construction of the surface (fillet or chamfer) contact edge/face.
Parameters:
  • Data (ChFiDS_SequenceOfSurfData &) –
  • Guide (Handle_ChFiDS_HElSpine &) –
  • Spine (Handle_ChFiDS_Spine &) –
  • Choix (int) –
  • S1 (Handle_BRepAdaptor_HSurface &) –
  • I1 (Handle_Adaptor3d_TopolTool &) –
  • Or1 (TopAbs_Orientation) –
  • S2 (Handle_BRepAdaptor_HSurface &) –
  • I2 (Handle_Adaptor3d_TopolTool &) –
  • PC2 (Handle_BRepAdaptor_HCurve2d &) –
  • Sref2 (Handle_BRepAdaptor_HSurface &) –
  • PCref2 (Handle_BRepAdaptor_HCurve2d &) –
  • Decroch2 (bool) –
  • MaxStep (float) –
  • Fleche (float) –
  • TolGuide (float) –
  • First (float &) –
  • Last (float &) –
  • Inside (bool) –
  • Appro (bool) –
  • Forward (bool) –
  • RecP (bool) –
  • RecS (bool) –
  • RecRst (bool) –
  • Soldep (math_Vector &) –
Return type:

void
  • Method, implemented in inheritants, calculates the elements of construction of the surface (fillet or chamfer) contact edge/edge.
Parameters:
  • Data (ChFiDS_SequenceOfSurfData &) –
  • Guide (Handle_ChFiDS_HElSpine &) –
  • Spine (Handle_ChFiDS_Spine &) –
  • Choix (int) –
  • S1 (Handle_BRepAdaptor_HSurface &) –
  • I1 (Handle_Adaptor3d_TopolTool &) –
  • PC1 (Handle_BRepAdaptor_HCurve2d &) –
  • Sref1 (Handle_BRepAdaptor_HSurface &) –
  • PCref1 (Handle_BRepAdaptor_HCurve2d &) –
  • Decroch1 (bool) –
  • Or1 (TopAbs_Orientation) –
  • S2 (Handle_BRepAdaptor_HSurface &) –
  • I2 (Handle_Adaptor3d_TopolTool &) –
  • PC2 (Handle_BRepAdaptor_HCurve2d &) –
  • Sref2 (Handle_BRepAdaptor_HSurface &) –
  • PCref2 (Handle_BRepAdaptor_HCurve2d &) –
  • Decroch2 (bool) –
  • Or2 (TopAbs_Orientation) –
  • MaxStep (float) –
  • Fleche (float) –
  • TolGuide (float) –
  • First (float &) –
  • Last (float &) –
  • Inside (bool) –
  • Appro (bool) –
  • Forward (bool) –
  • RecP1 (bool) –
  • RecRst1 (bool) –
  • RecP2 (bool) –
  • RecRst2 (bool) –
  • Soldep (math_Vector &) –
Return type:

void
ResetContour()
  • Reset tous rayons du contour IC.
Parameters:IC (int) –
Return type:None
Sect()
Parameters:
Return type:

Handle_ChFiDS_SecHArray1
SetDist()
  • set the distance <Dis> of the fillet contour of index <IC> in the DS with <Dis> on <F>. if the face <F> is not one of common faces of an edge of the contour <IC>
Parameters:
  • Dis (float) –
  • IC (int) –
  • F (TopoDS_Face &) –
Return type:

None
SetDistAngle()
  • set the distance <Dis> and <Angle> of the fillet contour of index <IC> in the DS with <Dis> on <F>. if the face <F> is not one of common faces of an edge of the contour <IC>
Parameters:
  • Dis (float) –
  • Angle (float) –
  • IC (int) –
  • F (TopoDS_Face &) –
Return type:

None
SetDists()
  • set the distances <Dis1> and <Dis2> of the fillet contour of index <IC> in the DS with <Dis1> on <F>. if the face <F> is not one of common faces of an edge of the contour <IC>
Parameters:
  • Dis1 (float) –
  • Dis2 (float) –
  • IC (int) –
  • F (TopoDS_Face &) –
Return type:

None
SimulSurf()
Parameters:
  • Data (Handle_ChFiDS_SurfData &) –
  • Guide (Handle_ChFiDS_HElSpine &) –
  • Spine (Handle_ChFiDS_Spine &) –
  • Choix (int) –
  • S1 (Handle_BRepAdaptor_HSurface &) –
  • I1 (Handle_Adaptor3d_TopolTool &) –
  • PC1 (Handle_BRepAdaptor_HCurve2d &) –
  • Sref1 (Handle_BRepAdaptor_HSurface &) –
  • PCref1 (Handle_BRepAdaptor_HCurve2d &) –
  • Decroch1 (bool) –
  • S2 (Handle_BRepAdaptor_HSurface &) –
  • I2 (Handle_Adaptor3d_TopolTool &) –
  • Or2 (TopAbs_Orientation) –
  • Fleche (float) –
  • TolGuide (float) –
  • First (float &) –
  • Last (float &) –
  • Inside (bool) –
  • Appro (bool) –
  • Forward (bool) –
  • RecP (bool) –
  • RecS (bool) –
  • RecRst (bool) –
  • Soldep (math_Vector &) –
  • Data –
  • Guide –
  • Spine –
  • Choix –
  • S1 –
  • I1 –
  • Or1 (TopAbs_Orientation) –
  • S2 –
  • I2 –
  • PC2 (Handle_BRepAdaptor_HCurve2d &) –
  • Sref2 (Handle_BRepAdaptor_HSurface &) –
  • PCref2 (Handle_BRepAdaptor_HCurve2d &) –
  • Decroch2 (bool) –
  • Fleche –
  • TolGuide –
  • First –
  • Last –
  • Inside –
  • Appro –
  • Forward –
  • RecP –
  • RecS –
  • RecRst –
  • Soldep –
  • Data –
  • Guide –
  • Spine –
  • Choix –
  • S1 –
  • I1 –
  • PC1 –
  • Sref1 –
  • PCref1 –
  • Decroch1 –
  • Or1 –
  • S2 –
  • I2 –
  • PC2 –
  • Sref2 –
  • PCref2 –
  • Decroch2 –
  • Or2 –
  • Fleche –
  • TolGuide –
  • First –
  • Last –
  • Inside –
  • Appro –
  • Forward –
  • RecP1 (bool) –
  • RecRst1 (bool) –
  • RecP2 (bool) –
  • RecRst2 (bool) –
  • Soldep –
Return type:

void
Return type:

void
Return type:

void
Simulate()
Parameters:IC (int) –
Return type:None
thisown

The membership flag

class ChFi3d_FilBuilder(*args)

Bases: OCC.ChFi3d.ChFi3d_Builder

Parameters:
  • S (TopoDS_Shape &) –
  • FShape (ChFi3d_FilletShape) – default value is ChFi3d_Rational
  • Ta (float) – default value is 1.0e-2
Return type:

None
Add()
  • initialisation of a contour with the first edge (the following are found by propagation). Attention, you need to start with SetRadius.
Parameters:E (TopoDS_Edge &) –
Return type:None
  • initialisation of the constant vector the corresponding 1st edge.
Parameters:
  • Radius (float) –
  • E (TopoDS_Edge &) –
Return type:

None
GetBounds()
  • Returns in First and Last les extremities of the part of variable vector framing E, returns False if E is flagged as edge constant.
Parameters:
  • IC (int) –
  • E (TopoDS_Edge &) –
  • First (float &) –
  • Last (float &) –
Return type:

bool
GetFilletShape()
  • Returns the type of fillet surface.
Return type:ChFi3d_FilletShape
GetLaw()
  • Returns the rule of elementary evolution of the part to variable vector framing E, returns a rule zero if E is flagged as edge constant.
Parameters:
  • IC (int) –
  • E (TopoDS_Edge &) –
Return type:

Handle_Law_Function
IsConstant()
  • Returns true the contour is flaged as edge constant.
Parameters:IC (int) –
Return type:bool
  • Returns true E is flagged as edge constant.
Parameters:
  • IC (int) –
  • E (TopoDS_Edge &) –
Return type:

bool
NbSurf()
Parameters:IC (int) –
Return type:int
Radius()
  • Returns the vector if the contour is flagged as edge constant.
Parameters:IC (int) –
Return type:float
  • Returns the vector if E is flagged as edge constant.
Parameters:
  • IC (int) –
  • E (TopoDS_Edge &) –
Return type:

float
ResetContour()
  • Reset all vectors of contour IC.
Parameters:IC (int) –
Return type:None
Sect()
Parameters:
Return type:

Handle_ChFiDS_SecHArray1
SetFilletShape()
  • Sets the type of fillet surface.
Parameters:FShape (ChFi3d_FilletShape) –
Return type:None
SetLaw()
  • Sets the rule of elementary evolution of the part to variable vector framing E.
Parameters:
  • IC (int) –
  • E (TopoDS_Edge &) –
  • L (Handle_Law_Function &) –
Return type:

None
SetRadius()
  • Set the radius of the contour of index IC.
Parameters:
  • C (Handle_Law_Function &) –
  • IC (int) –
  • IinC (int) –
Return type:

None
  • Set a constant on edge E of the contour of index IC. Since then E is flagged as constant.
Parameters:
  • Radius (float) –
  • IC (int) –
  • E (TopoDS_Edge &) –
Return type:

None
  • Set a vector on vertex V of the contour of index IC.
Parameters:
  • Radius (float) –
  • IC (int) –
  • V (TopoDS_Vertex &) –
Return type:

None
  • Set a vertex on the point of parametre U in the edge IinC of the contour of index IC
Parameters:
Return type:

None
Simulate()
Parameters:IC (int) –
Return type:None
UnSet()
  • Extracts the flag constant and the vector of edge E.
Parameters:
  • IC (int) –
  • E (TopoDS_Edge &) –
Return type:

None
  • Extracts the vector of the vertex V.
Parameters:
  • IC (int) –
  • V (TopoDS_Vertex &) –
Return type:

None
thisown

The membership flag

class ChFi3d_SearchSing(*args)

Bases: OCC.math.math_FunctionWithDerivative

Parameters:
  • C1 (Handle_Geom_Curve &) –
  • C2 (Handle_Geom_Curve &) –
Return type:

None
thisown

The membership flag

class SwigPyIterator(*args, **kwargs)

Bases: object

advance()
copy()
decr()
distance()
equal()
incr()
next()
previous()
thisown

The membership flag

value()
class chfi3d

Bases: object

static ConcaveSide(*args)
  • Returns Reversed in Or1 and(or) Or2 if the concave edge defined by the interior of faces F1 and F2, in the neighbourhood of their boundary E is of the edge opposite to the normal of their surface support. The orientation of faces is not taken into consideration in the calculation. The function returns 0 if the calculation fails (tangence), if not, it returns the number of choice of the fillet or chamfer corresponding to the orientations calculated and to the tangent to the guide line read in E.
Parameters:
  • S1 (BRepAdaptor_Surface &) –
  • S2 (BRepAdaptor_Surface &) –
  • E (TopoDS_Edge &) –
  • Or1 (TopAbs_Orientation &) –
  • Or2 (TopAbs_Orientation &) –
Return type:

int
static NextSide(*args)
  • Same as ConcaveSide, but the orientations are logically deduced from the result of the call of ConcaveSide on the first pair of faces of the fillet or chamnfer.
Parameters:
  • Or1 (TopAbs_Orientation &) –
  • Or2 (TopAbs_Orientation &) –
  • OrSave1 (TopAbs_Orientation) –
  • OrSave2 (TopAbs_Orientation) –
  • ChoixSauv (int) –
Return type:

int
  • Same as the other NextSide, but the calculation is done on an edge only.
Parameters:
  • Or (TopAbs_Orientation &) –
  • OrSave (TopAbs_Orientation) –
  • OrFace (TopAbs_Orientation) –
Return type:

void
static SameSide(*args)
  • Enables to determine while processing an angle, if two fillets or chamfers constituting a face have identic or opposed concave edges.
Parameters:
  • Or (TopAbs_Orientation) –
  • OrSave1 (TopAbs_Orientation) –
  • OrSave2 (TopAbs_Orientation) –
  • OrFace1 (TopAbs_Orientation) –
  • OrFace2 (TopAbs_Orientation) –
Return type:

bool
thisown

The membership flag

chfi3d_ConcaveSide(*args)
  • Returns Reversed in Or1 and(or) Or2 if the concave edge defined by the interior of faces F1 and F2, in the neighbourhood of their boundary E is of the edge opposite to the normal of their surface support. The orientation of faces is not taken into consideration in the calculation. The function returns 0 if the calculation fails (tangence), if not, it returns the number of choice of the fillet or chamfer corresponding to the orientations calculated and to the tangent to the guide line read in E.
Parameters:
  • S1 (BRepAdaptor_Surface &) –
  • S2 (BRepAdaptor_Surface &) –
  • E (TopoDS_Edge &) –
  • Or1 (TopAbs_Orientation &) –
  • Or2 (TopAbs_Orientation &) –
Return type:

int
chfi3d_NextSide(*args)
  • Same as ConcaveSide, but the orientations are logically deduced from the result of the call of ConcaveSide on the first pair of faces of the fillet or chamnfer.
Parameters:
  • Or1 (TopAbs_Orientation &) –
  • Or2 (TopAbs_Orientation &) –
  • OrSave1 (TopAbs_Orientation) –
  • OrSave2 (TopAbs_Orientation) –
  • ChoixSauv (int) –
Return type:

int
  • Same as the other NextSide, but the calculation is done on an edge only.
Parameters:
  • Or (TopAbs_Orientation &) –
  • OrSave (TopAbs_Orientation) –
  • OrFace (TopAbs_Orientation) –
Return type:

void
chfi3d_SameSide(*args)
  • Enables to determine while processing an angle, if two fillets or chamfers constituting a face have identic or opposed concave edges.
Parameters:
  • Or (TopAbs_Orientation) –
  • OrSave1 (TopAbs_Orientation) –
  • OrSave2 (TopAbs_Orientation) –
  • OrFace1 (TopAbs_Orientation) –
  • OrFace2 (TopAbs_Orientation) –
Return type:

bool
register_handle(handle, base_object)

Inserts the handle into the base object to prevent memory corruption in certain cases