-- Created on: 1992-04-27
-- Created by: Laurent BUCHARD
-- Copyright (c) 1992-1999 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 Intersection from IntRes2d


    ---Purpose: Defines  the root   class  of  all  the  Intersections
    --          between  two 2D-Curves, and  provides all  the methods
    --          about the results of the Intersections Algorithms.


uses IntersectionPoint             from IntRes2d,
     IntersectionSegment           from IntRes2d,
     SequenceOfIntersectionPoint   from IntRes2d,
     SequenceOfIntersectionSegment from IntRes2d

raises NotDone    from StdFail,
       OutOfRange from Standard

is

    Initialize
    
	---Purpose: Empty constructor.    	
    	is protected;
	---C++:inline

	
    Initialize(Other: Intersection from IntRes2d)
        ---C++:inline
    	is protected;
    
    IsDone(me)
    
	---Purpose: returns TRUE when the computation was successful.
	---C++: inline
    	returns Boolean from Standard
   	is static;


    IsEmpty(me)
    
	---Purpose: Returns TRUE if there is no intersection between the
	--          given arguments.
	--          The exception NotDone is raised if IsDone returns FALSE.
	---C++: inline
     	returns Boolean from Standard
    	raises  NotDone from StdFail
	is static;


    NbPoints(me)

      	---Purpose: This function returns the number of intersection
       	--          points between the 2 curves.
	--          The exception NotDone is raised if IsDone returns FALSE.
	---C++: inline
	
	returns Integer from Standard
    	raises  NotDone from StdFail
	is static;


    Point(me; N : Integer from Standard)

	---Purpose: This function returns the intersection point
	--          of range N;
	--          The exception NotDone is raised if IsDone returns FALSE.
	--          The exception OutOfRange is raised if (N <= 0) 
	--          or (N > NbPoints).
	---C++: inline

	returns IntersectionPoint from IntRes2d
    	---C++: return const &
    	raises  NotDone           from StdFail,
                OutOfRange        from Standard
	is static;


    NbSegments(me)

	---Purpose: This function returns the number of intersection
	--          segments between the two curves.
	--          The exception NotDone is raised if IsDone returns FALSE.
	---C++: inline
	
	returns Integer from Standard
    	raises  NotDone from StdFail
	is static;
	
	
    Segment(me; N : Integer)

	---Purpose: This function returns the intersection segment
	--          of range N;
	--          The exception NotDone is raised if IsDone returns FALSE.
	--          The exception OutOfRange is raised if (N <= 0) 
	--          or (N > NbPoints).
	---C++: inline

	returns IntersectionSegment from IntRes2d
    	---C++: return const &
    	raises  NotDone             from StdFail,
                OutOfRange          from Standard
	is static;



    SetValues(me: in out; Inter: Intersection from IntRes2d)

	--Purpose: Copies  the Inters values into the current object.
		
    	is static protected;


    Append(me: in out; Inter      : Intersection from IntRes2d;
                       FirstParam1: Real         from Standard;
                       LastParam1 : Real         from Standard;
                       FirstParam2: Real         from Standard;
                       LastParam2 : Real         from Standard)		       

	--Purpose: Appends  the Inters values to the current object
	--         FirstParam and LastParam are the parameters of
	--         the bounds of the parameter interval of the 
	--         curves.
	
    	is static protected;


    Append(me: in out; Seg: IntersectionSegment from IntRes2d) 

    	--Purpose: Appends a new Intersection Segment.
	---C++: inline
	is static protected;


    Append(me: in out; Pnt: IntersectionPoint from IntRes2d) 
    
    	--Purpose: Appends a new Intersection Point.
	---C++: inline	    	
	is static protected;
	

    Insert(me: in out; Pnt: IntersectionPoint from IntRes2d) 
    
    	--Purpose: Inserts a new Intersection Point.
	    	
	is static protected;
	

    ResetFields(me: in out)
    
	--Purpose: Resets all fields.  
	---C++: inline	    
    	is static protected;


    SetReversedParameters(me: in out; Reverseflag: Boolean from Standard)
    
	--Purpose: Initialize the  reverse flag. This flag is  used to
	--         determine  if the first and  second parameters have
	--         to be   swaped when    the intersection  points and
	--         segments are created.
	---C++: inline	    
    	is static;


    ReversedParameters(me)
    
    	--Purpose: Returns the value of the reverse flag.
	---C++: inline	
    	returns Boolean from Standard
    	is static protected;

fields

    done    : Boolean                       from Standard is protected;
    reverse : Boolean                       from Standard;          
    lpnt    : SequenceOfIntersectionPoint   from IntRes2d;
    lseg    : SequenceOfIntersectionSegment from IntRes2d; 

end Intersection;