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-- File: BRepFeat_Form.cdl
-- Created: Tue Feb 13 13:44:09 1996
-- Author: Jacques GOUSSARD
-- <jag@bravox>
---Copyright: Matra Datavision 1996
deferred class Form from BRepFeat inherits MakeShape from BRepBuilderAPI
---Purpose: Provides general functions to build form features.
-- Form features can be depressions or protrusions and include the following types:
-- - Cylinder
-- - Draft Prism
-- - Prism
-- - Revolved feature
-- - Pipe
-- In each case, you have a choice of operation type between the following:
-- - removing matter (a Boolean cut: Fuse setting 0)
-- - adding matter (Boolean fusion: Fuse setting 1)
-- The semantics of form feature creation is based on the construction of shapes:
-- - along a length
-- - up to a limiting face
-- - from a limiting face to a height
-- - above and/or below a plane
-- The shape defining construction of the feature can be either the
-- supporting edge or the concerned area of a face.
-- In case of the supporting edge, this contour can be attached to a
-- face of the basis shape by binding. When the contour is bound to this
-- face, the information that the contour will slide on the face
-- becomes available to the relevant class methods. In case of the
-- concerned area of a face, you could, for example, cut it out and
-- move it to a different height which will define the limiting face of a
-- protrusion or depression.
-- Topological definition with local operations of this sort makes
-- calculations simpler and faster than a global operation. The latter
-- would entail a second phase of removing unwanted matter to get the same result.
uses Shape from TopoDS,
Face from TopoDS,
ShapeModification from BRepBuilderAPI,
DataMapOfShapeListOfShape from TopTools,
ListOfShape from TopTools,
SequenceOfCurve from TColGeom,
Curve from Geom,
DataMapOfShapeShape from TopTools,
Gluer from LocOpe,
PerfSelection from BRepFeat,
StatusError from BRepFeat,
HBuilder from TopOpeBRepBuild,
--modified by NIZNHY-PKV Thu Mar 21 17:09:08 2002 f
BooleanOperation from BRepAlgoAPI,
--modified by NIZNHY-PKV Thu Mar 21 17:09:11 2002 t
HistoryCollector from BOP
is
Initialize;
---Purpose: Redefines the empty constructor.
---C++: inline
--- Methods redefined from BRepBuilderAPI_MakeShape
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;
Generated(me: in out; S: Shape from TopoDS)
---Purpose: returns a list of the created faces
-- from the shape <S>.
---C++: return const &
---Level: Public
returns ListOfShape from TopTools
is redefined;
IsDeleted (me: in out; S : Shape from TopoDS)
returns Boolean
is redefined;
FirstShape (me)
---Purpose: Returns the list of shapes created at the bottom of
-- the created form. It may be an empty list.
returns ListOfShape from TopTools;
---C++: return const&
LastShape (me)
---Purpose: Returns the list of shapes created at the top of the
-- created form. It may be an empty list.
returns ListOfShape from TopTools;
---C++: return const&
NewEdges(me)
---Purpose: Returns a list of the limiting and glueing edges
-- generated by the feature. These edges did not originally
-- exist in the basis shape.
-- The list provides the information necessary for
-- subsequent addition of fillets. It may be an empty list.
---C++: return const&
returns ListOfShape from TopTools;
TgtEdges(me)
---Purpose: Returns a list of the tangent edges among the limiting
-- and glueing edges generated by the feature. These
-- edges did not originally exist in the basis shape and are
-- tangent to the face against which the feature is built.
-- The list provides the information necessary for
-- subsequent addition of fillets. It may be an empty list.
-- If an edge is tangent, no fillet is possible, and the edge
-- must subsequently be removed if you want to add a fillet.
---C++: return const&
returns ListOfShape from TopTools;
BasisShapeValid(me: in out)
--- Purpose: Initializes the topological construction if the basis shape is present.
---C++: inline
is static;
GeneratedShapeValid(me: in out)
---Purpose: Initializes the topological construction if the generated shape S is present.
---C++: inline
is static;
ShapeFromValid(me: in out)
---Purpose:
-- Initializes the topological construction if the shape is
-- present from the specified integer on.
---C++: inline
is static;
ShapeUntilValid(me: in out)
--- Purpose:
-- Initializes the topological construction if the shape is
-- present until the specified integer.
---C++: inline
is static;
GluedFacesValid(me: in out)
---Purpose:
-- Initializes the topological construction if the glued face is present.
---C++: inline
is static;
SketchFaceValid(me: in out)
--- Purpose:
-- Initializes the topological construction if the sketch face
-- is present. If the sketch face is inside the basis shape,
-- local operations such as glueing can be performed.
---C++: inline
is static;
PerfSelectionValid(me: in out)
--- Purpose: Initializes the topological construction if the selected face is present.
---C++: inline
is static;
GlobalPerform(me: in out)
---Purpose: General perform method...
is static protected;
Curves(me: in out; S : in out SequenceOfCurve from TColGeom)
is deferred;
BarycCurve(me: in out)
returns Curve from Geom
is deferred;
-- Protected implementation methods
UpdateDescendants(me: in out; G: Gluer from LocOpe)
is static protected;
--modified by NIZNHY-PKV Thu Mar 21 18:42:53 2002 f
UpdateDescendants(me: in out;
aBOP: BooleanOperation from BRepAlgoAPI;
SResult : Shape from TopoDS;
SkipFace : Boolean from Standard = Standard_False)
is static protected;
--modified by NIZNHY-PKV Thu Mar 21 18:42:50 2002 t
UpdateDescendants(me: in out;
aHistory : HistoryCollector from BOP;
SResult : Shape from TopoDS;
SkipFace : Boolean from Standard = Standard_False)
is static protected;
UpdateDescendants(me: in out;
B : HBuilder from TopOpeBRepBuild;
SResult : Shape from TopoDS;
SkipFace : Boolean from Standard = Standard_False)
is static protected;
TransformShapeFU(me: in out; flag: Integer from Standard)
returns Boolean from Standard
is protected;
CurrentStatusError(me)
returns StatusError from BRepFeat;
fields
myFuse : Boolean from Standard is protected;
myModify : Boolean from Standard is protected;
myMap : DataMapOfShapeListOfShape from TopTools is protected;
myFShape : Shape from TopoDS is protected;
myLShape : Shape from TopoDS is protected;
myNewEdges: ListOfShape from TopTools is protected;
myTgtEdges: ListOfShape from TopTools is protected;
myPerfSelection: PerfSelection from BRepFeat is protected;
myJustGluer: Boolean from Standard is protected;
myJustFeat: Boolean from Standard is protected;
mySbase : Shape from TopoDS is protected;
mySkface : Face from TopoDS is protected;
myGShape : Shape from TopoDS is protected;
mySFrom : Shape from TopoDS is protected;
mySUntil : Shape from TopoDS is protected;
myGluedF : DataMapOfShapeShape from TopTools is protected;
mySbOK : Boolean from Standard;
mySkOK : Boolean from Standard;
myGSOK : Boolean from Standard;
mySFOK : Boolean from Standard;
mySUOK : Boolean from Standard;
myGFOK : Boolean from Standard;
myPSOK : Boolean from Standard;
myStatusError : StatusError from BRepFeat;
end Form;
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