-- Created on: 1993-03-04
-- Created by: Jacques GOUSSARD
-- 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 ContAna from Contap

	---Purpose: This class provides the computation of the contours
	--          for quadric surfaces.

uses Sphere    from gp,
     Cylinder  from gp,
     Cone      from gp,
     Lin       from gp,
     Circ      from gp,
     Pnt       from gp,
     Dir       from gp,
     CurveType from GeomAbs


raises NotDone     from StdFail,
       DomainError from Standard,
       OutOfRange  from Standard

is

    Create
    
    	returns ContAna from Contap;
	
	
    Perform(me: in out; S: Sphere from gp; D: Dir from gp)
    
    	is static;


    Perform(me: in out; S: Sphere from gp; D  : Dir from gp; 
                                           Ang: Real from Standard)
    
    	is static;


    Perform(me: in out; S: Sphere from gp; Eye: Pnt from gp)
    
    	is static;


    Perform(me: in out; C: Cylinder from gp; D: Dir from gp)
    
    	is static;


    Perform(me: in out; C: Cylinder from gp; D  : Dir from gp;
                                             Ang: Real from Standard)
    
    	is static;


    Perform(me: in out; C: Cylinder from gp; Eye: Pnt from gp)
    
	---Purpose: 
    
    	is static;


    Perform(me: in out; C: Cone from gp; D: Dir from gp)
    
    	is static;


    Perform(me: in out; C: Cone from gp; D  : Dir from gp;
                                         Ang: Real from Standard)
    
    	is static;


    Perform(me: in out; C: Cone from gp; Eye: Pnt from gp)
    
	---Purpose: 
    
    	is static;


    IsDone(me)
    
    	returns Boolean from Standard
	---C++: inline

	is static;
	

    NbContours(me)
    
    	returns Integer from Standard
	---C++: inline
	
	raises NotDone from StdFail
	
	is static;



    TypeContour(me)
    
	---Purpose: Returns GeomAbs_Line or GeomAbs_Circle, when
	--          IsDone() returns True.
    
    	returns CurveType from GeomAbs
	---C++: inline
	
	raises NotDone     from StdFail,
	       DomainError from Standard
	
	is static;


    Circle(me)
    
    	returns Circ from gp
	---C++: inline
	
	raises NotDone from StdFail,
	       DomainError from Standard


    	is static;


    Line(me; Index: Integer from Standard)

    	returns Lin from gp
	
	raises NotDone from StdFail,
	       DomainError from Standard,
	       OutOfRange  from Standard

        is static;


fields

    done  : Boolean   from Standard;
    nbSol : Integer   from Standard;
    typL  : CurveType from GeomAbs;
    pt1   : Pnt       from gp;
    pt2   : Pnt       from gp;
    pt3   : Pnt       from gp;
    pt4   : Pnt       from gp;
    dir1  : Dir       from gp;
    dir2  : Dir       from gp;
    dir3  : Dir       from gp;  
    dir4  : Dir       from gp;  
    prm   : Real      from Standard;

end ContAna;