0025622: CAST analysis: Avoid invocation of virtual Methods of the declared Class...

[occt.git] / src / Adaptor2d / Adaptor2d_Curve2d.cdl

-- Created on: 1993-04-02
-- Created by: Bruno DUMORTIER
-- 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.

deferred class Curve2d from Adaptor2d 

	---Purpose: Root class for 2D curves on which geometric
    	-- algorithms work.
    	-- An adapted curve is an interface between the
    	-- services provided by a curve, and those required of
    	-- the curve by algorithms, which use it.
    	-- A derived concrete class is provided:
    	-- Geom2dAdaptor_Curve for a curve from the Geom2d package.

uses

     Array1OfReal from TColStd,
     Shape        from GeomAbs,
     CurveType    from GeomAbs,
     Vec2d        from gp,
     Pnt2d        from gp,
     Circ2d       from gp,
     Elips2d      from gp,
     Hypr2d       from gp,
     Parab2d      from gp,
     Lin2d        from gp,
     BezierCurve     from Geom2d,
     BSplineCurve    from Geom2d,
     HCurve2d        from Adaptor2d

raises
    
    OutOfRange          from Standard,
    NoSuchObject        from Standard,
    DomainError         from Standard
 
is

    --
    --     Global methods - Apply to the whole curve.
    --     
    
    FirstParameter(me) returns Real
    is virtual;

    LastParameter(me) returns Real
    is virtual;
    
    Continuity(me) returns Shape from GeomAbs
    is virtual;
    
    NbIntervals(me; S : Shape from GeomAbs) returns Integer
	---Purpose: If necessary,  breaks the  curve in  intervals  of
	--          continuity  <S>.    And  returns   the number   of
	--          intervals.
    is virtual;
    
    Intervals(me; T : in out Array1OfReal from TColStd; 
    	          S : Shape from GeomAbs)
	---Purpose: Stores in <T> the  parameters bounding the intervals
	--          of continuity <S>.
	--          
	--          The array must provide  enough room to  accomodate
	--          for the parameters. i.e. T.Length() > NbIntervals()
    raises
    	OutOfRange from Standard 
    is virtual;
    
    Trim(me; First, Last, Tol : Real) returns HCurve2d from Adaptor2d
	---Purpose: Returns    a  curve equivalent   of  <me>  between
	--          parameters <First>  and <Last>. <Tol>  is used  to
	--          test for 3d points confusion.
    raises
    	OutOfRange from Standard
	---Purpose: If <First> >= <Last> 
    is virtual;
    
    --
    --     Local methods - Apply to the current interval.
    --     By default the current interval is the first.
    --     
    
    IsClosed(me) returns Boolean
    is virtual;
     
    IsPeriodic(me) returns Boolean
    is virtual;
    
    Period(me) returns Real
    raises
    	DomainError from Standard -- if the curve is not periodic
    is virtual;
     
    Value(me; U : Real) returns Pnt2d from gp
         --- Purpose : Computes the point of parameter U on the curve.
    is virtual;
    
    D0 (me; U : Real; P : out Pnt2d from gp)
         --- Purpose : Computes the point of parameter U on the curve.
    is virtual;
    
    D1 (me; U : Real; P : out Pnt2d from gp ; V : out Vec2d from gp)
         --- Purpose : Computes the point of parameter U on the curve with its
         --  first derivative.
     raises 
    	DomainError from Standard
        --- Purpose : Raised if the continuity of the current interval
        --  is not C1.
    is virtual;
    
    D2 (me; U : Real; P : out Pnt2d from gp; V1, V2 : out Vec2d from gp)
        --- Purpose :
        --  Returns the point P of parameter U, the first and second
        --  derivatives V1 and V2.
     raises 
    	DomainError from Standard
        --- Purpose : Raised if the continuity of the current interval
        --  is not C2.
     is virtual;

    D3 (me; U : Real; P : out Pnt2d from gp; V1, V2, V3 : out Vec2d from gp)
        --- Purpose :
        --  Returns the point P of parameter U, the first, the second 
        --  and the third derivative.
     raises 
    	DomainError from Standard
        --- Purpose : Raised if the continuity of the current interval
        --  is not C3.
     is virtual;
        
    DN (me; U : Real; N : Integer)   returns Vec2d from gp
        --- Purpose :
        --  The returned vector gives the value of the derivative for the 
        --  order of derivation N.
     raises  
    	DomainError from Standard,
        --- Purpose : Raised if the continuity of the current interval
        --  is not CN.
        OutOfRange from Standard
        --- Purpose : Raised if N < 1.            
     is virtual;

    Resolution(me; R3d : Real) returns Real
         ---Purpose :  Returns the parametric  resolution corresponding
         --         to the real space resolution <R3d>.
    is virtual;   
        
    GetType(me) returns CurveType from GeomAbs
	---Purpose: Returns  the  type of the   curve  in the  current
	--          interval :   Line,   Circle,   Ellipse, Hyperbola,
	--          Parabola, BezierCurve, BSplineCurve, OtherCurve.
    is virtual;

    --
    --     The following methods must  be called when GetType returned
    --     the corresponding type.
    --     

     Line(me) returns Lin2d from gp
     raises 
    	NoSuchObject from Standard
     is virtual;
     
     Circle(me) returns Circ2d from gp
     raises 
    	NoSuchObject from Standard
     is virtual;
     
     Ellipse(me) returns Elips2d from gp
     raises 
    	NoSuchObject from Standard
     is virtual;
     
     Hyperbola(me) returns  Hypr2d from gp
     raises 
    	NoSuchObject from Standard
     is virtual;
     
     Parabola(me) returns Parab2d from gp
     raises 
    	NoSuchObject from Standard
     is virtual;

     
     Degree(me) returns Integer
     raises 
    	NoSuchObject from Standard
     is virtual;
     
     IsRational(me) returns Boolean
     raises 
    	NoSuchObject from Standard
     is virtual;
     
     NbPoles(me) returns Integer
     raises 
    	NoSuchObject from Standard
     is virtual;

  
     NbKnots(me) returns Integer
     raises 
    	NoSuchObject from Standard
     is virtual;     
          
     NbSamples(me) returns Integer from Standard is virtual;

     Bezier(me) returns BezierCurve from Geom2d
     raises 
    	NoSuchObject from Standard
     is virtual;
    
     BSpline(me) returns BSplineCurve from Geom2d
     raises 
    	NoSuchObject from Standard
     is virtual;

     ---C++: alias "  Standard_EXPORT virtual ~Adaptor2d_Curve2d();"
     
end Curve2d;