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-- File: Builder.cdl
-- Created: Thu Feb 21 09:40:26 1991
-- Author: Remi Lequette
---Copyright: Matra Datavision 1991, 1992
class Builder from TopoDS
---Purpose: 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.
--
-- - 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.
uses
Shape from TopoDS,
TShape from TopoDS,
Wire from TopoDS,
Shell from TopoDS,
Solid from TopoDS,
CompSolid from TopoDS,
Compound from TopoDS
raises
NullObject from Standard,
FrozenShape from TopoDS,
UnCompatibleShapes from TopoDS
is
MakeShape(me; S : out Shape from TopoDS;
T : mutable TShape from TopoDS)
---Purpose: The basic method to make a Shape, used by all the
-- Make methods.
is static protected;
MakeWire(me; W : out Wire from TopoDS);
---C++: inline
---Purpose: Make an empty Wire.
MakeShell(me; S : out Shell from TopoDS);
---C++: inline
---Purpose: Make an empty Shell.
MakeSolid(me; S : out Solid from TopoDS);
---C++: inline
---Purpose: Make a Solid covering the whole 3D space.
MakeCompSolid(me; C : out CompSolid from TopoDS);
---C++: inline
---Purpose: Make an empty Composite Solid.
MakeCompound(me; C : out Compound from TopoDS);
---C++: inline
---Purpose: Make an empty Compound.
Add(me; S : in out Shape from TopoDS;
C : in Shape from TopoDS)
---Purpose: Add the Shape C in the Shape S.
-- Exceptions
-- - TopoDS_FrozenShape if S is not free and cannot be modified.
-- - TopoDS__UnCompatibleShapes if S and C are not compatible.
raises
FrozenShape,
UnCompatibleShapes;
Remove(me; S : in out Shape from TopoDS;
C : in Shape from TopoDS)
---Purpose: Remove the Shape C from the Shape S.
-- Exceptions
-- TopoDS_FrozenShape if S is frozen and cannot be modified.
raises
FrozenShape;
end Builder;
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