TopoDS_Builder Class Reference

A Builder is used to create Topological Data
Structures.

There are three groups of methods in the Builder :

The Make methods create Shapes.

The Add method includes a Shape in another Shape.

The Remove method removes a Shape from an other
Shape.

The methods in Builder are not static. They can be
redefined in inherited builders.

This Builder does not provide methods to Make
Vertices, Edges, Faces, Shells or Solids. These
methods are provided in the inherited Builders
as they must provide the geometry.

The Add method check for the following rules :

More...

#include <TopoDS_Builder.hxx>

Inheritance diagram for TopoDS_Builder:

Public Member Functions
void	MakeWire (TopoDS_Wire &W) const
	Make an empty Wire. More...
void	MakeShell (TopoDS_Shell &S) const
	Make an empty Shell. More...
void	MakeSolid (TopoDS_Solid &S) const
	Make a Solid covering the whole 3D space. More...
void	MakeCompSolid (TopoDS_CompSolid &C) const
	Make an empty Composite Solid. More...
void	MakeCompound (TopoDS_Compound &C) const
	Make an empty Compound. More...
void	Add (TopoDS_Shape &S, const TopoDS_Shape &C) const
	Add the Shape C in the Shape S. <br> Exceptions More...
void	Remove (TopoDS_Shape &S, const TopoDS_Shape &C) const
	Remove the Shape C from the Shape S. <br> Exceptions TopoDS_FrozenShape if S is frozen and cannot be modified. More...

Protected Member Functions
void	MakeShape (TopoDS_Shape &S, const Handle< TopoDS_TShape > &T) const
	The basic method to make a Shape, used by all the Make methods. More...

Detailed Description

A Builder is used to create Topological Data
Structures.

There are three groups of methods in the Builder :

The Make methods create Shapes.

The Add method includes a Shape in another Shape.

The Remove method removes a Shape from an other
Shape.

The methods in Builder are not static. They can be
redefined in inherited builders.

This Builder does not provide methods to Make
Vertices, Edges, Faces, Shells or Solids. These
methods are provided in the inherited Builders
as they must provide the geometry.

The Add method check for the following rules :

     - Any SHAPE can be added in a COMPOUND. <br>

• Only SOLID can be added in a COMPSOLID.
  
  
• Only SHELL, EDGE and VERTEX can be added in a SOLID.
  EDGE and VERTEX as to be INTERNAL or EXTERNAL.
  
  
• Only FACE can be added in a SHELL.
  
  
• Only WIRE and VERTEX can be added in a FACE.
  VERTEX as to be INTERNAL or EXTERNAL.
  
  
• Only EDGE can be added in a WIRE.
  
  
• Only VERTEX can be added in an EDGE.
  
  
• Nothing can be added in a VERTEX.
  

Member Function Documentation

void TopoDS_Builder::Add	(	TopoDS_Shape &	S,
		const TopoDS_Shape &	C
	)		const

 Add the Shape C in the Shape S. <br>

Exceptions

• TopoDS_FrozenShape if S is not free and cannot be modified.
  
• TopoDS__UnCompatibleShapes if S and C are not compatible.
  

void TopoDS_Builder::MakeCompound

(

TopoDS_Compound &

C

)

const

Make an empty Compound.

void TopoDS_Builder::MakeCompSolid

(

TopoDS_CompSolid &

C

)

const

Make an empty Composite Solid.

void TopoDS_Builder::MakeShape ( TopoDS_Shape &  S, const Handle< TopoDS_TShape > &  T  ) const

protected

The basic method to make a Shape, used by all the
Make methods.

void TopoDS_Builder::MakeShell

(

TopoDS_Shell &

S

)

const

Make an empty Shell.

void TopoDS_Builder::MakeSolid

(

TopoDS_Solid &

S

)

const

Make a Solid covering the whole 3D space.

void TopoDS_Builder::MakeWire

(

TopoDS_Wire &

W

)

const

Make an empty Wire.

void TopoDS_Builder::Remove	(	TopoDS_Shape &	S,
		const TopoDS_Shape &	C
	)		const

 Remove the Shape C from the Shape S. <br>

Exceptions
TopoDS_FrozenShape if S is frozen and cannot be modified.

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

• TopoDS_Builder.hxx