+++ /dev/null
--- Created on: 1993-11-09
--- Created by: Laurent BOURESCHE
--- Copyright (c) 1993-1999 Matra Datavision
--- Copyright (c) 1999-2014 OPEN CASCADE SAS
---
--- This file is part of Open CASCADE Technology software library.
---
--- This library is free software; you can redistribute it and/or modify it under
--- the terms of the GNU Lesser General Public License version 2.1 as published
--- by the Free Software Foundation, with special exception defined in the file
--- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
--- distribution for complete text of the license and disclaimer of any warranty.
---
--- Alternatively, this file may be used under the terms of Open CASCADE
--- commercial license or contractual agreement.
-
-class Spine from ChFiDS inherits TShared from MMgt
-
- ---Purpose: Contains information necessary for construction of
- -- a 3D fillet or chamfer:
- --
- --
- -- - guideline composed of edges of the solid, tangents
- -- between them, and borders by faces tangents
- -- between them.
- --
- -- Tools for construction of the Sp
- -- by propagation from an edge of solid
- -- are provided in the Builder of Fil3d.
- --
- -- The Spine contains among others the
- -- information about the nature of extremities
- -- of the fillet ( on free border , on section or closed ).
- --
- -- IMPORTANT NOTE : the guideline
- -- represented in this way is not C2, although the path
- -- claims it. Several palliative workarounds
- -- (see the methods at the end) are planned,
- -- but they are not enough. It is necessary to change
- -- the approach and double the Spine of line C2 with
- -- the known consequences for management of
- -- interactions between KPart Blend in Fil3d.
-
-
-
-uses
-
- HArray1OfReal from TColStd,
- HArray1OfBoolean from TColStd,
- Pnt from gp,
- Vec from gp,
- Lin from gp,
- Circ from gp,
- CurveType from GeomAbs,
- Vertex from TopoDS,
- Edge from TopoDS,
- SequenceOfShape from TopTools,
- Curve from BRepAdaptor,
- SurfData from ChFiDS,
- State from ChFiDS,
- HElSpine from ChFiDS,
- ListOfHElSpine from ChFiDS,
- ErrorStatus from ChFiDS
-is
-
-----------------------------
--- methodes de construction.
-----------------------------
-
- Create returns Spine from ChFiDS;
-
- Create(Tol : Real from Standard) returns Spine from ChFiDS;
-
- SetEdges(me : mutable; E : Edge from TopoDS) is static;
- ---Purpose: store edges composing the guideline
- ---C++: inline
-
- PutInFirst(me : mutable; E : Edge from TopoDS) is static;
- ---Purpose: store the edge at the first position before all others
- ---C++: inline
-
- NbEdges(me) returns Integer is static;
- ---C++: inline
-
-
- Edges(me; I : Integer) returns Edge from TopoDS is static;
- ---C++: return const &
- ---C++: inline
-
-
- SetFirstStatus(me : mutable; S : State from ChFiDS) is static;
- ---Purpose: stores if the start of a set of edges starts on a
- -- section of free border or forms a closed contour
- ---C++: inline
-
-
- SetLastStatus(me : mutable; S : State from ChFiDS) is static;
- ---Purpose: stores if the end of a set of edges starts on a
- -- section of free border or forms a closed contour
- ---C++: inline
-
- AppendElSpine(me : mutable; Els : HElSpine from ChFiDS)
- is virtual;
-
- ElSpine(me; IE : Integer from Standard)
- returns HElSpine from ChFiDS
- is static;
-
- ElSpine(me; E : Edge from TopoDS)
- returns HElSpine from ChFiDS
- is static;
-
- ElSpine(me; W : Real from Standard)
- returns HElSpine from ChFiDS
- is static;
-
- ChangeElSpines(me : mutable)
- ---C++: return &
- returns ListOfHElSpine from ChFiDS
- is static;
-
- Reset(me : mutable; AllData : Boolean from Standard = Standard_False)
- is virtual;
-
- SplitDone(me) returns Boolean from Standard is static;
- SplitDone(me : mutable; B : Boolean from Standard) is static;
-
-----------------------
--- methodes de calcul.
-----------------------
-
- Load(me : mutable) is static;
- ---Purpose: prepare the guideline depending on the edges that
- -- are elementary arks (take parameters from
- -- a single curvilinear abscissa); to be able to call
- -- methods on the geometry (first,last,value,d1,d2)
- -- it is necessary to start with preparation otherwise an
- -- exception will be raised
-
- Resolution(me; R3d : Real) returns Real
- is static;
-
- IsClosed(me) returns Boolean
- is static;
-
- FirstParameter(me) returns Real
- is static;
-
- LastParameter(me) returns Real
- is static;
-
- SetFirstParameter(me : mutable; Par : Real from Standard)
- is static;
-
- SetLastParameter(me : mutable; Par : Real from Standard)
- is static;
-
- FirstParameter(me; IndexSpine : Integer ) returns Real
- ---Purpose: gives the total length of all arcs before the
- -- number IndexSp
- is static;
-
- LastParameter(me; IndexSpine : Integer ) returns Real
- ---Purpose: gives the total length till the ark with number
- -- IndexSpine (inclus)
- is static;
-
- Length(me;IndexSpine : Integer ) returns Real
- ---Purpose: gives the length of ark with number IndexSp
- is static;
-
- IsPeriodic(me) returns Boolean
- is static;
-
- Period(me) returns Real
- is static;
-
- Absc(me :mutable; U : Real) returns Real from Standard
- is static;
-
- Absc(me :mutable; U : Real; I : Integer from Standard)
- returns Real from Standard
- is static;
-
- Parameter(me :mutable;
- AbsC : Real;
- U : out Real;
- Oriented : Boolean from Standard = Standard_True)
- is static;
-
- Parameter(me :mutable;
- Index : Integer;
- AbsC : Real;
- U : out Real;
- Oriented : Boolean from Standard = Standard_True)
- is static;
-
- Prepare(me;
- L : in out Real from Standard;
- Index : in out Integer from Standard )
- is static private;
-
- Value(me :mutable; AbsC : Real ) returns Pnt from gp
- is static;
-
- D0(me :mutable; AbsC : Real ; P : out Pnt from gp)
- is static;
-
- D1(me :mutable; AbsC : Real ; P : out Pnt from gp; V1 : out Vec from gp)
- is static;
-
- D2(me :mutable; AbsC : Real ; P : out Pnt from gp;
- V1,V2 : out Vec from gp)
- is static;
-
- SetCurrent (me : mutable; Index : Integer )
- is static;
-
- CurrentElementarySpine (me : mutable; Index : Integer )
- ---Purpose: sets the current curve and returns it
- returns Curve from BRepAdaptor is static;
- ---C++: return const &
-
- CurrentIndexOfElementarySpine(me) returns Integer from Standard
- ---C++: inline
- is static;
-
- GetType(me) returns CurveType from GeomAbs
- is static;
-
- Line(me) returns Lin from gp
- is static;
-
- Circle(me) returns Circ from gp
- is static;
-
- FirstStatus(me) returns State from ChFiDS is static;
- ---Purpose: returns if the set of edges starts on a free boundary
- -- or if the first vertex is a breakpoint or if the set is
- -- closed
- ---C++: inline
-
- LastStatus(me) returns State from ChFiDS is static;
- ---Purpose: returns the state at the end of the set
- ---C++: inline
-
-
- Status(me; IsFirst : Boolean from Standard)
- returns State from ChFiDS is static;
- ---C++: inline
-
-
- SetStatus(me : mutable;
- S : State from ChFiDS;
- IsFirst : Boolean from Standard) is static;
- ---C++: inline
-
- IsTangencyExtremity(me; IsFirst : Boolean from Standard)
- returns Boolean is static;
- ---Purpose: returns if the set of edges starts (or end) on
- -- Tangency point.
- ---C++: inline
-
-
- SetTangencyExtremity(me : mutable;
- IsTangency : Boolean from Standard;
- IsFirst : Boolean from Standard) is static;
- ---C++: inline
------------------------------------------------------------
--- Methodes d acces aux vertex et a leurs parametres
------------------------------------------------------------
-
- Absc(me ; V : Vertex from TopoDS) returns Real from Standard
- is static;
- FirstVertex(me) returns Vertex from TopoDS;
- LastVertex(me) returns Vertex from TopoDS;
-
------------------------------------------------------------
--- Methodes de controle des prolongements aux extremites :
--- - prolongement par parmetrage etendu,
--- - prolongement par la tangente.
------------------------------------------------------------
-
- SetFirstTgt(me : mutable; W : Real from Standard) is static;
-
- SetLastTgt(me : mutable; W : Real from Standard) is static;
-
- HasFirstTgt(me) returns Boolean from Standard is static;
-
- HasLastTgt(me) returns Boolean from Standard is static;
-
-
----------------------------------------------------------------------
--- Methodes d implementation permettant de positionner un flag pour
--- le calcul de D2 aux points singuliers de la ligne guide.
----------------------------------------------------------------------
-
- SetReference(me : mutable; W : Real from Standard) is static;
- ---Purpose: set a parameter reference for the approx.
-
- SetReference(me : mutable; I : Integer from Standard) is static;
- ---Purpose: set a parameter reference for the approx, at the
- -- middle of edge I.
-
- Index(me;
- W : Real from Standard;
- Forward : Boolean from Standard = Standard_True)
- returns Integer from Standard
- is static;
-
- Index(me; E : Edge from TopoDS)
- returns Integer from Standard
- is static;
-
- UnsetReference(me : mutable) is static;
-
------------------------------------------------------------------------
--- methodes concernant le statut d'erreur
------------------------------------------------------------------------
- SetErrorStatus(me : mutable; state : ErrorStatus from ChFiDS) is static;
-
- ErrorStatus(me) returns ErrorStatus from ChFiDS is static;
-
-
-fields
-
--- donnees generales.
-
-myCurve : Curve from BRepAdaptor;
-indexofcurve : Integer from Standard;
-firstState : State from ChFiDS;
-lastState : State from ChFiDS;
-spine : SequenceOfShape from TopTools;
-abscissa : HArray1OfReal from TColStd;
---isconstant : HArray1OfBoolean from TColStd is protected;
-splitdone : Boolean from Standard is protected;
-elspines : ListOfHElSpine from ChFiDS is protected;
-tolesp : Real from Standard;
-
--- donnees caraterisant les extremites.
-
-firstparam : Real from Standard;
-lastparam : Real from Standard;
-firstprolon : Boolean from Standard;
-lastprolon : Boolean from Standard;
-firstistgt : Boolean from Standard;
-lastistgt : Boolean from Standard;
-
-firsttgtpar : Real from Standard;
-lasttgtpar : Real from Standard;
-hasfirsttgt : Boolean from Standard;
-haslasttgt : Boolean from Standard;
-firstori : Pnt from gp;
-lastori : Pnt from gp;
-firsttgt : Vec from gp;
-lasttgt : Vec from gp;
-
--- detrompeurs de calcul.
-
-valref : Real from Standard;
-hasref : Boolean from Standard;
-
--- statut d'erreur
-errorstate : ErrorStatus from ChFiDS;
-
-end Spine;
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