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-- File: BRepOffsetAPI_MakeEvolved.cdl
-- Created: Mon Sep 18 13:24:14 1995
-- Author: Bruno DUMORTIER
-- <dub@fuegox>
---Copyright: Matra Datavision 1995
class MakeEvolved from BRepOffsetAPI inherits MakeShape from BRepBuilderAPI
---Purpose: Describes functions to build evolved shapes.
-- An evolved shape is built from a planar spine (face or
-- wire) and a profile (wire). The evolved shape is the
-- unlooped sweep (pipe) of the profile along the spine.
-- Self-intersections are removed.
-- A MakeEvolved object provides a framework for:
-- - defining the construction of an evolved shape,
-- - implementing the construction algorithm, and
-- - consulting the result.
-- Computes an Evolved by
-- 1 - sweeping a profil along a spine.
-- 2 - removing the self-intersections.
--
-- The profile is defined in a Referential R. The position of
-- the profile at the current point of the spine is given by
-- confusing R and the local referential given by ( D0, D1
-- and the normal of the Spine)
--
-- If the Boolean <AxeProf> is true, R is O,X,Y,Z
-- else R is defined as the local refential at the nearest
-- point of the profil to the spine.
--
-- if <Solid> is TRUE the Shape result is completed to be a
-- solid or a compound of solids.
uses
Evolved from BRepFill,
ListOfShape from TopTools,
Shape from TopoDS,
Face from TopoDS,
Wire from TopoDS,
JoinType from GeomAbs
is
Create returns MakeEvolved from BRepOffsetAPI;
Create( Spine : Wire from TopoDS;
Profil : Wire from TopoDS;
Join : JoinType from GeomAbs = GeomAbs_Arc;
AxeProf : Boolean from Standard = Standard_True;
Solid : Boolean from Standard = Standard_False;
ProfOnSpine: Boolean from Standard = Standard_False;
Tol : Real from Standard = 0.0000001)
---Purpose:
---Level: Public
returns MakeEvolved from BRepOffsetAPI;
Create( Spine : Face from TopoDS;
Profil : Wire from TopoDS;
Join : JoinType from GeomAbs = GeomAbs_Arc;
AxeProf : Boolean from Standard = Standard_True;
Solid : Boolean from Standard = Standard_False;
ProfOnSpine: Boolean from Standard = Standard_False;
Tol : Real from Standard = 0.0000001)
---Purpose: These constructors construct an evolved shape by sweeping the profile
-- Profile along the spine Spine.
-- The profile is defined in a coordinate system R.
-- The coordinate system is determined by AxeProf:
-- - if AxeProf is true, R is the global coordinate system,
-- - if AxeProf is false, R is computed so that:
-- - its origin is given by the point on the spine which is
-- closest to the profile,
-- - its "X Axis" is given by the tangent to the spine at this point, and
-- - its "Z Axis" is the normal to the plane which contains the spine.
-- The position of the profile at the current point of the
-- spine is given by making R coincident with the local
-- coordinate system given by the current point, the
-- tangent vector and the normal to the spine.
-- Join defines the type of pipe generated by the salient
-- vertices of the spine. The default type is GeomAbs_Arc
-- where the vertices generate revolved pipes about the
-- axis passing along the vertex and the normal to the
-- plane of the spine. At present, this is the only
-- construction type implemented.
returns MakeEvolved from BRepOffsetAPI;
Evolved(me) returns Evolved from BRepFill
---C++: return const &
---Level: Advanced
is static;
Build(me : in out)
is redefined;
---Purpose: Builds the resulting shape (redefined from MakeShape).
---Level: Public
GeneratedShapes (me ;
SpineShape : Shape from TopoDS;
ProfShape : Shape from TopoDS)
---Purpose: Returns the shapes created from a subshape
-- <SpineShape> of the spine and a subshape
-- <ProfShape> on the profile.
---C++ : return const &
returns ListOfShape from TopTools
is static;
Top (me) returns Shape from TopoDS
---Purpose: Return the face Top if <Solid> is True in the constructor.
---C++ : return const &
is static;
Bottom (me) returns Shape from TopoDS
---Purpose: Return the face Bottom if <Solid> is True in the constructor.
---C++ : return const &
is static;
fields
myEvolved : Evolved from BRepFill;
end MakeEvolved;
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