OCC.Core.BRepCheck module¶

BRepCheck module, see official documentation at https://www.opencascade.com/doc/occt-7.4.0/refman/html/package_brepcheck.html

class BRepCheck_Analyzer(*args)¶

Bases: object

Constructs a shape validation object defined by the shape S. <S> is the shape to control. <GeomControls> If False only topological informaions are checked. The geometricals controls are For a VertexBRepCheck_InvalidToleranceValue NYI For an EdgeBRepCheck_InvalidCurveOnClosedSurface, BRepCheck_InvalidCurveOnSurface, BRepCheck_InvalidSameParameterFlag, BRepCheck_InvalidToleranceValue NYI For a faceBRepCheck_UnorientableShape, BRepCheck_IntersectingWires, BRepCheck_InvalidToleranceValue NYI For a wireBRepCheck_SelfIntersectingWire

param S

type S

TopoDS_Shape

param GeomControls

default value is Standard_True

type GeomControls

bool

rtype

None

Init()¶

<S> is the shape to control. <GeomControls> If False only topological informaions are checked. The geometricals controls are For a VertexBRepCheck_InvalidTolerance NYI For an EdgeBRepCheck_InvalidCurveOnClosedSurface, BRepCheck_InvalidCurveOnSurface, BRepCheck_InvalidSameParameterFlag, BRepCheck_InvalidTolerance NYI For a faceBRepCheck_UnorientableShape, BRepCheck_IntersectingWires, BRepCheck_InvalidTolerance NYI For a wireBRepCheck_SelfIntersectingWire

param S

type S

TopoDS_Shape

param GeomControls

default value is Standard_True

type GeomControls

bool

rtype

None

IsValid()¶

<S> is a subshape of the original shape. Returns <STandard_True> if no default has been detected on <S> and any of its subshape.

param S

type S

TopoDS_Shape

rtype

bool* Returns true if no defect is detected on the shape S or any of its subshapes. Returns true if the shape S is valid. This function checks whether a given shape is valid by checking that: - the topology is correct - parameterization of edges in particular is correct. For the topology to be correct, the following conditions must be satisfied: - edges should have at least two vertices if they are not degenerate edges. The vertices should be within the range of the bounding edges at the tolerance specified in the vertex, - edges should share at least one face. The representation of the edges should be within the tolerance criterion assigned to them. - wires defining a face should not self-intersect and should be closed, - there should be one wire which contains all other wires inside a face, - wires should be correctly oriented with respect to each of the edges, - faces should be correctly oriented, in particular with respect to adjacent faces if these faces define a solid, - shells defining a solid should be closed. There should be one enclosing shell if the shape is a solid; To check parameterization of edge, there are 2 approaches depending on the edge?s contextual situation. - if the edge is either single, or it is in the context of a wire or a compound, its parameterization is defined by the parameterization of its 3D curve and is considered as valid. - If the edge is in the context of a face, it should have SameParameter and SameRange flags set to Standard_True. To check these flags, you should call the function BRep_Tool::SameParameter and BRep_Tool::SameRange for an edge. If at least one of these flags is set to Standard_False, the edge is considered as invalid without any additional check. If the edge is contained by a face, and it has SameParameter and SameRange flags set to Standard_True, IsValid checks whether representation of the edge on face, in context of which the edge is considered, has the same parameterization up to the tolerance value coded on the edge. For a given parameter t on the edge having C as a 3D curve and one PCurve P on a surface S (base surface of the reference face), this checks that |C(t) - S(P(t))| is less than or equal to tolerance, where tolerance is the tolerance value coded on the edge.

rtype

bool

Result()¶

Parameters

SubS –

type SubS: TopoDS_Shape
rtype: opencascade::handle<BRepCheck_Result>

property thisown¶: The membership flag

class BRepCheck_DataMapOfShapeListOfStatus(*args)¶

Bases: object

Assign()¶

Bind()¶

Bound()¶

ChangeFind()¶

ChangeSeek()¶

Clear()¶

Exchange()¶

Find()¶

IsBound()¶

ReSize()¶

Seek()¶

Set()¶

Size()¶

UnBind()¶

begin()¶

cbegin()¶

cend()¶

end()¶

property thisown¶: The membership flag

class BRepCheck_DataMapOfShapeResult(*args)¶

Bases: object

Assign()¶

Bind()¶

Bound()¶

ChangeFind()¶

ChangeSeek()¶

Clear()¶

Exchange()¶

Find()¶

IsBound()¶

ReSize()¶

Seek()¶

Set()¶

Size()¶

UnBind()¶

begin()¶

cbegin()¶

cend()¶

end()¶

property thisown¶: The membership flag

class BRepCheck_Edge(*args)¶

Bases: OCC.Core.BRepCheck.BRepCheck_Result

Parameters

E –

type E: TopoDS_Edge
rtype: None

CheckPolygonOnTriangulation()¶

Checks, if polygon on triangulation of heEdge is out of 3D-curve of this edge.

param theEdge

type theEdge

TopoDS_Edge

rtype

BRepCheck_Status

static DownCast(t)¶

GeometricControls()¶

Return type: bool:param B: :type B: bool :rtype: None

SetStatus()¶

Sets status of Edge;

param theStatus

type theStatus

BRepCheck_Status

rtype

None

Tolerance()¶

Return type: float

property thisown¶: The membership flag

class BRepCheck_Face(*args)¶

Bases: OCC.Core.BRepCheck.BRepCheck_Result

Parameters

F –

type F: TopoDS_Face
rtype: None

ClassifyWires()¶

Parameters: Update – default value is Standard_False :type Update: bool :rtype: BRepCheck_Status

static DownCast(t)¶

GeometricControls()¶

Return type: bool:param B: :type B: bool :rtype: None

IntersectWires()¶

Parameters: Update – default value is Standard_False :type Update: bool :rtype: BRepCheck_Status

IsUnorientable()¶

Return type: bool

OrientationOfWires()¶

Parameters: Update – default value is Standard_False :type Update: bool :rtype: BRepCheck_Status

SetStatus()¶

Sets status of Face;

param theStatus

type theStatus

BRepCheck_Status

rtype

None

SetUnorientable()¶

Return type: None

property thisown¶: The membership flag

class BRepCheck_ListIteratorOfListOfStatus(*args)¶

Bases: object

ChangeValue()¶

More()¶

Next()¶

Value()¶

property thisown¶: The membership flag

class BRepCheck_ListOfStatus(*args)¶

Bases: object

Append()¶

Assign()¶

Clear()¶

First()¶

InsertAfter()¶

InsertBefore()¶

Last()¶

Prepend()¶

Remove()¶

RemoveFirst()¶

Reverse()¶

Set()¶

Size()¶

begin()¶

cbegin()¶

cend()¶

end()¶

property thisown¶: The membership flag

class BRepCheck_Result(*args, **kwargs)¶

Bases: OCC.Core.Standard.Standard_Transient

Empty constructor

Return type: None* Copy constructor – does nothing
Parameters: & (Standard_Transient) –
Return type: None

Blind()¶

Return type: void

ContextualShape()¶

Return type: TopoDS_Shape

static DownCast(t)¶

InContext()¶

Parameters

ContextShape –

type ContextShape: TopoDS_Shape
rtype: void

Init()¶

Parameters

S –

type S: TopoDS_Shape
rtype: None

InitContextIterator()¶

Return type: None

IsBlind()¶

Return type: bool

IsMinimum()¶

Return type: bool

Minimum()¶

Return type: void

MoreShapeInContext()¶

Return type: bool

NextShapeInContext()¶

Return type: None

SetFailStatus()¶

Parameters

S –

type S: TopoDS_Shape
rtype: None

Status()¶

Return type: BRepCheck_ListOfStatus

StatusOnShape()¶

If not already done, performs the InContext control and returns the list of status.

param S

type S

TopoDS_Shape

rtype

BRepCheck_ListOfStatus:rtype: BRepCheck_ListOfStatus

property thisown¶: The membership flag

class BRepCheck_Shell(*args)¶

Bases: OCC.Core.BRepCheck.BRepCheck_Result

Parameters

S –

type S: TopoDS_Shell
rtype: None

Closed()¶

Checks if the oriented faces of the shell give a closed shell. If the wire is closed, returns BRepCheck_NoError.If <Update> is set to Standard_True, registers the status in the list.

param Update

default value is Standard_False

type Update

bool

rtype

BRepCheck_Status

static DownCast(t)¶

IsUnorientable()¶

Return type: bool

NbConnectedSet()¶

Parameters

theSets –

type theSets: TopTools_ListOfShape
rtype: int

Orientation()¶

Checks if the oriented faces of the shell are correctly oriented. An internal call is made to the method Closed. If <Update> is set to Standard_True, registers the status in the list.

param Update

default value is Standard_False

type Update

bool

rtype

BRepCheck_Status

SetUnorientable()¶

Return type: None

property thisown¶: The membership flag

class BRepCheck_Solid(*args)¶

Bases: OCC.Core.BRepCheck.BRepCheck_Result

Constructor <theS> is the solid to check

param theS

type theS

TopoDS_Solid

rtype

None

static DownCast(t)¶

property thisown¶: The membership flag

class BRepCheck_Vertex(*args)¶

Bases: OCC.Core.BRepCheck.BRepCheck_Result

Parameters

V –

type V: TopoDS_Vertex
rtype: None

static DownCast(t)¶

Tolerance()¶

Return type: float

property thisown¶: The membership flag

class BRepCheck_Wire(*args)¶

Bases: OCC.Core.BRepCheck.BRepCheck_Result

Parameters

W –

type W: TopoDS_Wire
rtype: None

Closed()¶

Checks if the oriented edges of the wire give a closed wire. If the wire is closed, returns BRepCheck_NoError. Warningif the first and last edge are infinite, the wire will be considered as a closed one. If <Update> is set to Standard_True, registers the status in the list. May return (and registers): **BRepCheck_NotConnected, if wire is not topologically closed **BRepCheck_RedundantEdge, if an edge is in wire more than 3 times or in case of 2 occurences if not with FORWARD and REVERSED orientation. **BRepCheck_NoError

param Update

default value is Standard_False

type Update

bool

rtype

BRepCheck_Status

Closed2d()¶

Checks if edges of the wire give a wire closed in 2d space. Returns BRepCheck_NoError, or BRepCheck_NotClosed If <Update> is set to Standard_True, registers the status in the list.

param F

type F

TopoDS_Face

param Update

default value is Standard_False

type Update

bool

rtype

BRepCheck_Status

static DownCast(t)¶

GeometricControls()¶

report SelfIntersect() check would be (is) done

rtype

bool* set SelfIntersect() to be checked

param B

type B

bool

rtype

None

Orientation()¶

Checks if the oriented edges of the wire are correctly oriented. An internal call is made to the method Closed. If no face exists, call the method with a null face (TopoDS_face()). If <Update> is set to Standard_True, registers the status in the list. May return (and registers): BRepCheck_InvalidDegeneratedFlag, BRepCheck_BadOrientationOfSubshape, BRepCheck_NotClosed, BRepCheck_NoError

param F

type F

TopoDS_Face

param Update

default value is Standard_False

type Update

bool

rtype

BRepCheck_Status

SelfIntersect()¶

Checks if the wire intersect itself on the face <F>. <E1> and <E2> are the first intersecting edges found. <E2> may be a null edge when a self-intersecting edge is found.If <Update> is set to Standard_True, registers the status in the list. May return (and register): BRepCheck_EmptyWire, BRepCheck_SelfIntersectingWire, BRepCheck_NoCurveOnSurface, BRepCheck_NoError

param F

type F

TopoDS_Face

param E1

type E1

TopoDS_Edge

param E2

type E2

TopoDS_Edge

param Update

default value is Standard_False

type Update

bool

rtype

BRepCheck_Status

SetStatus()¶

Sets status of Wire;

param theStatus

type theStatus

BRepCheck_Status

rtype

None

property thisown¶: The membership flag

class SwigPyIterator(*args, **kwargs)¶

Bases: object

advance()¶

copy()¶

decr()¶

distance()¶

equal()¶

incr()¶

next()¶

previous()¶

property thisown¶: The membership flag

value()¶

class brepcheck¶

Bases: object

static Add()¶

Parameters

List –

type List: BRepCheck_ListOfStatus
param Stat
type Stat: BRepCheck_Status
rtype: void

static PrecCurve()¶

Returns the resolution on the 3d curve

param aAC3D

type aAC3D

Adaptor3d_Curve

rtype

float

static PrecSurface()¶

Returns the resolution on the surface

param aAHSurf

type aAHSurf

Adaptor3d_HSurface

rtype

float

static Print()¶

Parameters

Stat –

type Stat: BRepCheck_Status
param OS
type OS: Standard_OStream
rtype: void

static SelfIntersection()¶

Parameters

W –

type W: TopoDS_Wire
param F
type F: TopoDS_Face
param E1
type E1: TopoDS_Edge
param E2
type E2: TopoDS_Edge
rtype: bool

property thisown¶: The membership flag