TopExp Class Reference

This package provides basic tools to explore the topological data structures. More...

#include <TopExp.hxx>

Static Public Member Functions
static void	MapShapes (const TopoDS_Shape &S, const TopAbs_ShapeEnum T, TopTools_IndexedMapOfShape &M)
	Tool to explore a topological data structure. Stores in the map <M> all the sub-shapes of of type <T>.
static void	MapShapes (const TopoDS_Shape &S, TopTools_IndexedMapOfShape &M, const Standard_Boolean cumOri=Standard_True, const Standard_Boolean cumLoc=Standard_True)
	Stores in the map <M> all the sub-shapes of .
static void	MapShapes (const TopoDS_Shape &S, TopTools_MapOfShape &M, const Standard_Boolean cumOri=Standard_True, const Standard_Boolean cumLoc=Standard_True)
	Stores in the map <M> all the sub-shapes of .
static void	MapShapesAndAncestors (const TopoDS_Shape &S, const TopAbs_ShapeEnum TS, const TopAbs_ShapeEnum TA, TopTools_IndexedDataMapOfShapeListOfShape &M)
	Stores in the map <M> all the subshape of of type <TS> for each one append to the list all the ancestors of type <TA>. For example map all the edges and bind the list of faces. Warning: The map is not cleared at first.
static void	MapShapesAndUniqueAncestors (const TopoDS_Shape &S, const TopAbs_ShapeEnum TS, const TopAbs_ShapeEnum TA, TopTools_IndexedDataMapOfShapeListOfShape &M, const Standard_Boolean useOrientation=Standard_False)
	Stores in the map <M> all the subshape of of type <TS> for each one append to the list all unique ancestors of type <TA>. For example map all the edges and bind the list of faces. useOrientation = True : taking account the ancestor orientation Warning: The map is not cleared at first.
static TopoDS_Vertex	FirstVertex (const TopoDS_Edge &E, const Standard_Boolean CumOri=Standard_False)
	Returns the Vertex of orientation FORWARD in E. If there is none returns a Null Shape. CumOri = True : taking account the edge orientation.
static TopoDS_Vertex	LastVertex (const TopoDS_Edge &E, const Standard_Boolean CumOri=Standard_False)
	Returns the Vertex of orientation REVERSED in E. If there is none returns a Null Shape. CumOri = True : taking account the edge orientation.
static void	Vertices (const TopoDS_Edge &E, TopoDS_Vertex &Vfirst, TopoDS_Vertex &Vlast, const Standard_Boolean CumOri=Standard_False)
	Returns in Vfirst, Vlast the FORWARD and REVERSED vertices of the edge <E>. May be null shapes. CumOri = True : taking account the edge orientation.
static void	Vertices (const TopoDS_Wire &W, TopoDS_Vertex &Vfirst, TopoDS_Vertex &Vlast)
	Returns in Vfirst, Vlast the first and last vertices of the open wire <W>. May be null shapes. if <W> is closed Vfirst and Vlast are a same vertex on <W>. if <W> is no manifold. VFirst and VLast are null shapes.
static Standard_Boolean	CommonVertex (const TopoDS_Edge &E1, const TopoDS_Edge &E2, TopoDS_Vertex &V)
	Finds the vertex <V> common to the two edges <E1,E2>, returns True if this vertex exists.

Detailed Description

This package provides basic tools to explore the topological data structures.

• Explorer : A tool to find all sub-shapes of a given type. e.g. all faces of a solid.
• Package methods to map sub-shapes of a shape.

Level : Public All methods of all classes will be public.

Member Function Documentation

CommonVertex()

static Standard_Boolean TopExp::CommonVertex ( const TopoDS_Edge &  E1, const TopoDS_Edge &  E2, TopoDS_Vertex &  V  )

static

Finds the vertex <V> common to the two edges <E1,E2>, returns True if this vertex exists.

Warning: <V> has sense only if the value <True> is returned

FirstVertex()

static TopoDS_Vertex TopExp::FirstVertex ( const TopoDS_Edge &  E, const Standard_Boolean  CumOri = Standard_False  )

static

Returns the Vertex of orientation FORWARD in E. If there is none returns a Null Shape. CumOri = True : taking account the edge orientation.

LastVertex()

static TopoDS_Vertex TopExp::LastVertex ( const TopoDS_Edge &  E, const Standard_Boolean  CumOri = Standard_False  )

static

Returns the Vertex of orientation REVERSED in E. If there is none returns a Null Shape. CumOri = True : taking account the edge orientation.

MapShapes() [1/3]

static void TopExp::MapShapes ( const TopoDS_Shape &  S, const TopAbs_ShapeEnum  T, TopTools_IndexedMapOfShape &  M  )

static

Tool to explore a topological data structure. Stores in the map <M> all the sub-shapes of of type <T>.

Warning: The map is not cleared at first.

MapShapes() [2/3]

static void TopExp::MapShapes ( const TopoDS_Shape &  S, TopTools_IndexedMapOfShape &  M, const Standard_Boolean  cumOri = Standard_True, const Standard_Boolean  cumLoc = Standard_True  )

static

Stores in the map <M> all the sub-shapes of .

• If cumOri is true, the function composes all sub-shapes with the orientation of S.
• If cumLoc is true, the function multiplies all sub-shapes by the location of S, i.e. it applies to each sub-shape the transformation that is associated with S.

MapShapes() [3/3]

static void TopExp::MapShapes ( const TopoDS_Shape &  S, TopTools_MapOfShape &  M, const Standard_Boolean  cumOri = Standard_True, const Standard_Boolean  cumLoc = Standard_True  )

static

Stores in the map <M> all the sub-shapes of .

• If cumOri is true, the function composes all sub-shapes with the orientation of S.
• If cumLoc is true, the function multiplies all sub-shapes by the location of S, i.e. it applies to each sub-shape the transformation that is associated with S.

MapShapesAndAncestors()

static void TopExp::MapShapesAndAncestors ( const TopoDS_Shape &  S, const TopAbs_ShapeEnum  TS, const TopAbs_ShapeEnum  TA, TopTools_IndexedDataMapOfShapeListOfShape &  M  )

static

Stores in the map <M> all the subshape of of type <TS> for each one append to the list all the ancestors of type <TA>. For example map all the edges and bind the list of faces. Warning: The map is not cleared at first.

MapShapesAndUniqueAncestors()

static void TopExp::MapShapesAndUniqueAncestors ( const TopoDS_Shape &  S, const TopAbs_ShapeEnum  TS, const TopAbs_ShapeEnum  TA, TopTools_IndexedDataMapOfShapeListOfShape &  M, const Standard_Boolean  useOrientation = Standard_False  )

static

Stores in the map <M> all the subshape of of type <TS> for each one append to the list all unique ancestors of type <TA>. For example map all the edges and bind the list of faces. useOrientation = True : taking account the ancestor orientation Warning: The map is not cleared at first.

Vertices() [1/2]

static void TopExp::Vertices ( const TopoDS_Edge &  E, TopoDS_Vertex &  Vfirst, TopoDS_Vertex &  Vlast, const Standard_Boolean  CumOri = Standard_False  )

static

Returns in Vfirst, Vlast the FORWARD and REVERSED vertices of the edge <E>. May be null shapes. CumOri = True : taking account the edge orientation.

Vertices() [2/2]

static void TopExp::Vertices ( const TopoDS_Wire &  W, TopoDS_Vertex &  Vfirst, TopoDS_Vertex &  Vlast  )

static

Returns in Vfirst, Vlast the first and last vertices of the open wire <W>. May be null shapes. if <W> is closed Vfirst and Vlast are a same vertex on <W>. if <W> is no manifold. VFirst and VLast are null shapes.

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

• TopExp.hxx