-- File:      IntPatch_ImpPrmIntersection.cdl
-- Created:   Thu May  7 08:47:45 1992
-- Author:    Jacques GOUSSARD
---Copyright: Matra Datavision 1992


class ImpPrmIntersection from IntPatch

	---Purpose: Implementation of the intersection between a natural
	--          quadric patch : Plane, Cone, Cylinder or Sphere and
	--          a bi-parametrised surface.

uses
     TheSearchInside     from IntPatch,
     HSurface            from Adaptor3d,
     TopolTool           from Adaptor3d,
     Point               from IntPatch,
     SequenceOfPoint     from IntPatch,
     TheSOnBounds        from IntPatch,
     SequenceOfLine      from IntPatch,
     Line                from IntPatch,
     PathPointTool       from IntSurf,
     SequenceOfPathPoint from IntSurf,
     Quadric             from IntSurf,
     QuadricTool         from IntSurf,
     InteriorPoint       from IntSurf,
     InteriorPointTool   from IntSurf


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

is


    Create
    
    	returns ImpPrmIntersection from IntPatch;


    Create(Surf1: HSurface from Adaptor3d; D1: TopolTool from Adaptor3d;
           Surf2: HSurface from Adaptor3d; D2: TopolTool from Adaptor3d; 
           TolArc,TolTang,Fleche,Pas: Real from Standard)

    	returns ImpPrmIntersection from IntPatch
	raises ConstructionError from Standard;


    SetStartPoint(me: in out; U,V: Real from Standard)
	---Purpose: to search for solution from the given point
    	is static;


    Perform(me: in out;
            Surf1: HSurface from Adaptor3d; D1: TopolTool from Adaptor3d;
            Surf2: HSurface from Adaptor3d; D2: TopolTool from Adaptor3d; 
            TolArc,TolTang,Fleche,Pas: Real from Standard)

    	raises ConstructionError from Standard
    	is static;



    IsDone(me)
    
    	---Purpose: Returns true if the calculus was succesfull.

    	returns Boolean from Standard
	---C++: inline

    	is static;


    IsEmpty(me)
    
    	---Purpose: Returns true if the is no intersection.

    	returns Boolean from Standard
	---C++: inline

    	raises NotDone from StdFail

    	is static;


    NbPnts(me)
    
    	---Purpose: Returns the number of "single" points.

    	returns Integer from Standard
	---C++: inline

    	raises NotDone from StdFail
	
    	is static;


    Point(me; Index: Integer from Standard)
    
    	---Purpose: Returns the point of range Index.
    	--          An exception is raised if Index<=0 or Index>NbPnt.

    	returns Point from IntPatch
	---C++: return const&
	---C++: inline

    	raises NotDone    from StdFail,
               OutOfRange from Standard

    	is static;


    NbLines(me)
    
    	---Purpose: Returns the number of intersection lines.

    	returns Integer from Standard
	---C++: inline

    	raises NotDone from StdFail

    	is static;


    Line(me; Index: Integer from Standard)
    
    	---Purpose: Returns the line of range Index.
    	--          An exception is raised if Index<=0 or Index>NbLine.

    	returns Line from IntPatch
	---C++: return const&
	---C++: inline

    	raises NotDone    from StdFail,
               OutOfRange from Standard
	
    	is static;


fields

    done   : Boolean         from Standard;
    empt   : Boolean         from Standard;
    spnt   : SequenceOfPoint from IntPatch;
    slin   : SequenceOfLine  from IntPatch;
    solrst : TheSOnBounds    from IntPatch;
    solins : TheSearchInside from IntPatch;
--    iwalk  : TheIWalking     from IntPatch;
    myIsStartPnt: Boolean    from Standard;
    myUStart  : Real         from Standard;
    myVStart  : Real         from Standard;

end ImpPrmIntersection;