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-- File: ChFiDS_Spine.cdl
-- Created: Tue Nov 9 16:23:29 1993
-- Author: Laurent BOURESCHE
-- <lbo@zerox>
---Copyright: Matra Datavision 1993
class Spine from ChFiDS inherits TShared from MMgt
---Purpose: Contains information necessary for construction of
-- a 3D fillet :
--
--
-- - 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 mutable Spine from ChFiDS;
Create(Tol : Real from Standard) returns mutable 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 mutable HElSpine from ChFiDS
is static;
ElSpine(me; E : Edge from TopoDS)
returns mutable HElSpine from ChFiDS
is static;
ElSpine(me; W : Real from Standard)
returns mutable 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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