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-- File: BRepFeat_Gluer.cdl
-- Created: Fri Mar 8 09:12:54 1996
-- Author: Jacques GOUSSARD
-- <jag@bravox>
---Copyright: Matra Datavision 1996
class Gluer from BRepFeat inherits MakeShape from BRepBuilderAPI
---Purpose: One of the most significant aspects
-- of BRepFeat functionality is the use of local operations as opposed
-- to global ones. In a global operation, you would first
-- construct a form of the type you wanted in your final feature, and
-- then remove matter so that it could fit into your initial basis object.
-- In a local operation, however, you specify the domain of the feature
-- construction with aspects of the shape on which the feature is being
-- created. These semantics are expressed in terms of a member
-- shape of the basis shape from which - or up to which - matter will be
-- added or removed. As a result, local operations make calculations
-- simpler and faster than global operations.
-- Glueing uses wires or edges of a face in the basis shape. These are
-- to become a part of the feature. They are first cut out and then
-- projected to a plane outside or inside the basis shape. By
-- rebuilding the initial shape incorporating the edges and the
-- faces of the tool, protrusion features can be constructed.
uses Shape from TopoDS,
Face from TopoDS,
Edge from TopoDS,
ListOfShape from TopTools,
Gluer from LocOpe,
Operation from LocOpe,
ShapeModification from BRepBuilderAPI
is
Create
---Purpose: Initializes an empty constructor
returns Gluer from BRepFeat;
---C++: inline
Create(Snew: Shape from TopoDS;
Sbase : Shape from TopoDS)
---Purpose: Initializes the shapes to be glued, the new shape
-- Snew and the basis shape Sbase.
returns Gluer from BRepFeat;
---C++: inline
Init(me: in out; Snew: Shape from TopoDS;
Sbase : Shape from TopoDS)
---Purpose: Initializes the new shape Snew and the basis shape
-- Sbase for the local glueing operation.
---C++: inline
is static;
Bind(me: in out; Fnew : Face from TopoDS;
Fbase : Face from TopoDS)
---Purpose: Defines a contact between Fnew on the new shape
-- Snew and Fbase on the basis shape Sbase. Informs
-- other methods that Fnew in the new shape Snew is
-- connected to the face Fbase in the basis shape Sbase.
-- The contact faces of the glued shape must not have
-- parts outside the contact faces of the basis shape.
-- This indicates that glueing is possible.
---C++: inline
is static;
Bind(me: in out; Enew : Edge from TopoDS;
Ebase: Edge from TopoDS)
---Purpose: nforms other methods that the edge Enew in the new
-- shape is the same as the edge Ebase in the basis
-- shape and is therefore attached to the basis shape. This
-- indicates that glueing is possible.
---C++: inline
is static;
OpeType(me)
returns Operation from LocOpe
---Purpose: Determine which operation type to use glueing or sliding.
---C++: inline
is static;
BasisShape(me)
returns Shape from TopoDS
---Purpose: Returns the basis shape of the compound shape.
---C++: return const&
---C++: inline
is static;
GluedShape(me)
returns Shape from TopoDS
---C++: return const&
---C++: inline
--- Purpose: Returns the resulting compound shape.
is static;
-- Methods redefined from BRepBuilderAPI_MakeShape
Build(me : in out)
---Purpose: This is called by Shape(). It does nothing but
-- may be redefined.
---Level: Public
is redefined;
-----------------------------------------------------------
--- the following methods do nothing and must be redefined
--- for faces modifications and creations.
IsDeleted(me: in out; F: Shape from TopoDS)
---Purpose: returns the status of the Face after
-- the shape creation.
---Level: Public
returns Boolean from Standard
is redefined;
Modified(me: in out; F: Shape from TopoDS)
---Purpose: returns the list of generated Faces.
---C++: return const &
---Level: Public
returns ListOfShape from TopTools
is redefined;
fields
myGluer: Gluer from LocOpe;
end Gluer;
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