-- File:	BRepBlend.cdl
-- Created:	Mon Dec  6 09:41:39 1993
-- Author:	Jacques GOUSSARD
--		<jag@topsn2>
-- jlr le 28-07-97 F(t) in Edge/Face
---Copyright:	 Matra Datavision 1993



package BRepBlend

uses Blend, BlendFunc, AppBlend, Approx,  Adaptor3d,Adaptor2d,
     Law,  gp, TopAbs, IntSurf, Convert,
     TCollection,TColStd,TColgp,GeomAbs,Geom,Geom2d, 
     AdvApprox, StdFail, math

is

    generic class HCurveToolGen;
    generic class HCurve2dToolGen;

    class HCurveTool instantiates HCurveToolGen from BRepBlend (
    	HCurve from Adaptor3d);

    class HCurve2dTool instantiates HCurve2dToolGen from BRepBlend (
    	HCurve2d from Adaptor2d);

    class BlendTool;
    
    alias ConstRad is ConstRad from BlendFunc;

    alias ConstRadInv is ConstRadInv from BlendFunc;

    alias Ruled is Ruled from BlendFunc;

    alias RuledInv is RuledInv from BlendFunc;
    
    alias EvolRad is EvolRad from BlendFunc;

    alias EvolRadInv is EvolRadInv from BlendFunc;

    alias CSConstRad is CSConstRad from BlendFunc;

    alias CSCircular is CSCircular from BlendFunc;

    alias Chamfer is Chamfer from BlendFunc;

    alias ChamfInv is ChamfInv from BlendFunc;

    alias ChAsym is ChAsym from BlendFunc;

    alias ChAsymInv is ChAsymInv from BlendFunc;


    class PointOnRst instantiates PointOnRst from Blend
    	(HCurve2d from Adaptor2d);


    class SequenceOfPointOnRst instantiates Sequence from TCollection
    	(PointOnRst from BRepBlend);


    class Extremity instantiates Extremity from Blend
    	(HVertex              from Adaptor3d,
	 HCurve2d             from Adaptor2d,
	 PointOnRst           from BRepBlend,
	 SequenceOfPointOnRst from BRepBlend);

    class Line instantiates Line from Blend
    	(HVertex              from Adaptor3d,
	 HCurve2d             from Adaptor2d,
	 PointOnRst           from BRepBlend,
	 SequenceOfPointOnRst from BRepBlend,
	 Extremity            from BRepBlend);


    class Walking instantiates Walking from Blend
    	(HVertex              from Adaptor3d,
	 HCurve2d             from Adaptor2d,
	 HSurface             from Adaptor3d,
	 HCurve               from Adaptor3d,
	 Integer              from Standard,
	 HCurve2dTool         from BRepBlend,
	 HSurfaceTool         from Adaptor3d,
	 HCurveTool           from BRepBlend,
	 TopolTool            from Adaptor3d,
	 BlendTool            from BRepBlend,
	 PointOnRst           from BRepBlend,
	 SequenceOfPointOnRst from BRepBlend,
	 Extremity            from BRepBlend,
	 Line                 from BRepBlend);
	 
    class CSWalking instantiates CSWalking from Blend
    	(HVertex              from Adaptor3d,
	 HCurve2d             from Adaptor2d,
	 HSurface             from Adaptor3d,
	 HCurve               from Adaptor3d,
	 Integer              from Standard,
	 HCurve2dTool         from BRepBlend,
	 HSurfaceTool         from Adaptor3d,
	 HCurveTool           from BRepBlend,
	 TopolTool            from Adaptor3d,
	 BlendTool            from BRepBlend,
	 PointOnRst           from BRepBlend,
	 SequenceOfPointOnRst from BRepBlend,
	 Extremity            from BRepBlend,
	 Line                 from BRepBlend);
	 
    class AppSurf instantiates AppSurf from AppBlend
    	(AppFunction from Blend,
         Line        from BRepBlend);


    class SequenceOfLine instantiates Sequence from TCollection
    	(Line from BRepBlend);


    class AppSurface; 
    ---Purpose: Used to Approximate the surfaces.

    deferred class AppFuncRoot;
    ---Purpose: Root Class Function to approximate by AppSurface	 

    class AppFunc;
    ---Purpose: Function to approximate by AppSurface for 
    --          Surface/Surface contact.

    class AppFuncRst;
    ---Purpose: Function  to approximate by AppSurface  for  
    --          Curve/Surface contact.

    class AppFuncRstRst;
    ---Purpose: Function  to approximate by AppSurface  for  
    --          Curve/Curve contact.

    class SurfRstEvolRad;
    ---Purpose: Function  to approximate by AppSurface  for  
    --          Edge/Face  and  evolutif  radius	 

    class SurfRstConstRad;
    ---Purpose: Copy of CSConstRad with pcurve on surface 
    --          as support. 

    class RstRstEvolRad;
    ---Purpose: Function  to approximate by AppSurface  for  
    --          Edge/Edge  and  evolutif  radius
    --          
    class RstRstConstRad;
    ---Purpose: Copy of CSConstRad with a pcurve on surface 
    --          as support. 

    class SurfPointConstRadInv;
    ---Purpose: Function of reframing between a point and a surface.

    class SurfCurvConstRadInv;
    ---Purpose: Function of reframing between a restriction surface of the
    --          surface and a curve.

    class SurfPointEvolRadInv;
    ---Purpose: Fonction of reframing between a point and a surface.

    class CurvPointRadInv;
    ---Purpose: Function of reframing between a point and a curve.
    --          valid in cases of constant and progressive radius
    class SurfCurvEvolRadInv;
    ---Purpose: Function of reframing between a surface restriction 
    --          of the surface and a curve.

    class SurfRstLineBuilder;
    ---Purpose: Construction of a BRepBlend_Line between a surface and
    --          a pcurve on surface from an approached
    --          starting solution. The output entries of this builder
    --          are of the same nature as of the traditional walking
    --          but the requirements on the Line are not the same
    --          If the determination of validity range is always
    --          guaranteed, the criteria of correct repartition of sections 
    --          before smoothing are not respected. The resulting Line
    --          is f(t) oriented.

    class RstRstLineBuilder;
    ---Purpose: Construction of a BRepBlend_Line between two pcurves
    --          from an approached starting solution. The output
    --          entries of this builder are of the same nature 
    --          as of a traditional walking, but the requirements 
    --          to the Line are not the same. If the determination of validity range is always
    --          guaranteed, the criteria of correct repartition of sections 
    --          before smoothing are not respected. The resulting Line
    --          is f(t) oriented.          
end BRepBlend;