-- File:	Blend_Point.cdl
-- Created:	Thu Dec  2 12:23:09 1993
-- Author:	Jacques GOUSSARD
--		<jag@topsn2>
---Copyright:	 Matra Datavision 1993



class Point from Blend

	---Purpose: 

uses Pnt   from gp,
     Vec   from gp,
     Vec2d from gp

raises DomainError from Standard

is

    Create returns Point from Blend;
	
    Create(Pt1,Pt2       : Pnt from gp;
    	   Param         : Real from Standard;
    	   U1,V1,U2,V2   : Real from Standard;
	   Tg1,Tg2       : Vec from gp;
	   Tg12d,Tg22d   : Vec2d from gp)
    ---Purpose: Creates a point on 2 surfaces, with tangents.
    returns Point from Blend;
	
    Create(Pt1,Pt2       : Pnt from gp;
    	   Param         : Real from Standard;
    	   U1,V1,U2,V2   : Real from Standard)
    ---Purpose: Creates a point on 2 surfaces, without tangents.
    returns Point from Blend;
	
    Create(Pts,Ptc       : Pnt from gp;
    	   Param         : Real from Standard;
    	   U,V,W         : Real from Standard;
	   Tgs,Tgc       : Vec from gp;
	   Tg2d          : Vec2d from gp)
    ---Purpose: Creates a point on a surface and a curve, with tangents.
    returns Point from Blend;
	
    Create(Pts,Ptc       : Pnt from gp;
    	   Param         : Real from Standard;
    	   U,V,W         : Real from Standard)
    ---Purpose: Creates a point on a surface and a curve, without tangents.
    returns Point from Blend;
	
    Create(Pt1,Pt2       : Pnt from gp;
    	   Param         : Real from Standard;
    	   U1,V1,U2,V2   : Real from Standard;
	   PC            : Real from Standard;
	   Tg1,Tg2       : Vec from gp;
	   Tg12d,Tg22d   : Vec2d from gp)
    ---Purpose: Creates a point on a surface and a curve on surface, 
    --          with tangents.
    returns Point from Blend;
	
    Create(Pt1,Pt2       : Pnt from gp;
    	   Param         : Real from Standard;
    	   U1,V1,U2,V2   : Real from Standard;
	   PC            : Real from Standard)
    ---Purpose: Creates a point on a surface and a curve on surface, 
    --          without tangents.
    returns Point from Blend;
	
    Create(Pt1,Pt2       : Pnt from gp;
    	   Param         : Real from Standard;
    	   U1,V1,U2,V2   : Real from Standard;
	   PC1,PC2       : Real from Standard;
	   Tg1,Tg2       : Vec from gp;
	   Tg12d,Tg22d   : Vec2d from gp)
    ---Purpose: Creates a point on two curves on surfaces, with tangents.
    returns Point from Blend;
	
    Create(Pt1,Pt2       : Pnt from gp;
    	   Param         : Real from Standard;
    	   U1,V1,U2,V2   : Real from Standard;
	   PC1,PC2       : Real from Standard)
    ---Purpose: Creates a point on two curves on surfaces, with tangents.
    returns Point from Blend;
	
    SetValue(me: in out;Pt1,Pt2       : Pnt from gp;
                        Param         : Real from Standard;
    	                U1,V1,U2,V2   : Real from Standard;
	                Tg1,Tg2       : Vec from gp;
	                Tg12d,Tg22d   : Vec2d from gp)
    ---Purpose: Set the values for a point on 2 surfaces, with tangents.
    is static;

    SetValue(me: in out;Pt1,Pt2       : Pnt from gp;
                        Param         : Real from Standard;
    	                U1,V1,U2,V2   : Real from Standard)
    ---Purpose: Set the values for a point on 2 surfaces, without tangents.
    is static;

    SetValue(me: in out;Pts,Ptc       : Pnt from gp;
                        Param         : Real from Standard;
    	                U,V,W         : Real from Standard;
	                Tgs,Tgc       : Vec from gp;
	                Tg2d          : Vec2d from gp)
    ---Purpose: Set the values for a point on a surface and a curve,
    --          with tangents.
    is static;

    SetValue(me: in out;Pts,Ptc       : Pnt from gp;
                        Param         : Real from Standard;
    	                U,V,W         : Real from Standard)
    ---Purpose: Set the values for a point on a surface and a curve,
    --          without tangents.
    is static;

    SetValue(me            : in out;
    	     Pt1,Pt2       : Pnt from gp;
    	     Param         : Real from Standard;
    	     U1,V1,U2,V2   : Real from Standard;
	     PC            : Real from Standard;
	     Tg1,Tg2       : Vec from gp;
	     Tg12d,Tg22d   : Vec2d from gp);
    ---Purpose: Creates a point on a surface and a curve on surface, 
    --          with tangents.
	
    SetValue(me            : in out;
    	     Pt1,Pt2       : Pnt from gp;
    	     Param         : Real from Standard;
    	     U1,V1,U2,V2   : Real from Standard;
	     PC            : Real from Standard);
    ---Purpose: Creates a point on a surface and a curve on surface, 
    --          without tangents.
	
    SetValue(me            : in out;
    	     Pt1,Pt2       : Pnt from gp;
    	     Param         : Real from Standard;
    	     U1,V1,U2,V2   : Real from Standard;
	     PC1,PC2       : Real from Standard;
	     Tg1,Tg2       : Vec from gp;
	     Tg12d,Tg22d   : Vec2d from gp);
    ---Purpose: Creates a point on two curves on surfaces, with tangents.
	
    SetValue(me            : in out;
    	     Pt1,Pt2       : Pnt from gp;
    	     Param         : Real from Standard;
    	     U1,V1,U2,V2   : Real from Standard;
	     PC1,PC2       : Real from Standard);
    ---Purpose: Creates a point on two curves on surfaces, without tangents.
	
    SetValue(me            : in out;
    	     Pt1,Pt2       : Pnt from gp;
    	     Param         : Real from Standard;
	     PC1,PC2       : Real from Standard);
    ---Purpose: Creates a point on two curves.
	
    Parameter(me)
    returns Real from Standard
    ---C++: inline
    is static;
    
    IsTangencyPoint(me)
    ---Purpose: Returns Standard_True if it was not possible to compute
    --          the tangent vectors at PointOnS1 and/or PointOnS2.
    ---C++: inline
    returns Boolean from Standard
    is static;


-- methods for a point on 2 surfaces

    PointOnS1(me)
    returns Pnt from gp
    ---C++: inline
    ---C++: return const&
    is static;
    
    PointOnS2(me)
    returns Pnt from gp
    ---C++: inline
    ---C++: return const&
    is static;

    ParametersOnS1(me; U,V: out Real from Standard)
    ---C++: inline
    is static;
    
    ParametersOnS2(me; U,V: out Real from Standard)
    ---C++: inline
    is static;

    TangentOnS1(me)
    returns Vec from gp
    ---C++: inline
    ---C++: return const&
    raises DomainError from Standard
    --- The exception is raised when IsTangencyPoint
    --  returns Standard_True.
    is static;
    
    TangentOnS2(me)
    returns Vec from gp
    ---C++: inline
    ---C++: return const&
    raises DomainError from Standard
    --- The exception is raised when IsTangencyPoint
    --  returns Standard_True.
    is static;
    
    Tangent2dOnS1(me)
    returns Vec2d from gp
    ---C++: inline
    raises DomainError from Standard
    --- The exception is raised when IsTangencyPoint
    --  returns Standard_True.
    is static;
    
    Tangent2dOnS2(me)
    returns Vec2d from gp
    ---C++: inline
    raises DomainError from Standard
    --- The exception is raised when IsTangencyPoint
    --  returns Standard_True.
    is static;
    

-- methods for a point on a surface and a curve

    PointOnS(me)
    returns Pnt from gp
    ---C++: inline
    ---C++: return const&
    is static;
    
    PointOnC(me)
    returns Pnt from gp
    ---C++: inline
    ---C++: return const&
    is static;

    ParametersOnS(me; U,V: out Real from Standard)
    ---C++: inline
    is static;
    
    ParameterOnC(me)
    returns Real from Standard
    ---C++: inline
    is static;
    
    TangentOnS(me)
    returns Vec from gp
    ---C++: inline
    ---C++: return const&
    raises DomainError from Standard
    --- The exception is raised when IsTangencyPoint
    --  returns Standard_True.
    is static;
    
    TangentOnC(me)
    returns Vec from gp
    ---C++: inline
    ---C++: return const&
    raises DomainError from Standard
    --- The exception is raised when IsTangencyPoint
    --  returns Standard_True.
    is static;
    
    Tangent2d(me)
    returns Vec2d from gp
    ---C++: inline
    raises DomainError from Standard
    --- The exception is raised when IsTangencyPoint
    --  returns Standard_True.
    is static;

-- methods for a point on two curves

    PointOnC1(me)
    returns Pnt from gp
    ---C++: inline
    ---C++: return const&
    is static;
    
    PointOnC2(me)
    returns Pnt from gp
    ---C++: inline
    ---C++: return const&
    is static;


    ParameterOnC1(me)
    returns Real from Standard
    ---C++: inline
    is static;
    
    ParameterOnC2(me)
    returns Real from Standard
    ---C++: inline
    is static;

    
    TangentOnC1(me)
    returns Vec from gp
    ---C++: inline
    ---C++: return const&
    raises DomainError from Standard
    --- The exception is raised when IsTangencyPoint
    --  returns Standard_True.
    is static;
    
    TangentOnC2(me)
    returns Vec from gp
    ---C++: inline
    ---C++: return const&
    raises DomainError from Standard
    --- The exception is raised when IsTangencyPoint
    --  returns Standard_True.
    is static;   
    
    
        
fields
    pt1    : Pnt     from gp;
    pt2    : Pnt     from gp; 
    tg1    : Vec     from gp;
    tg2    : Vec     from gp;
    prm    : Real    from Standard;
    u1     : Real    from Standard;
    v1     : Real    from Standard;
    u2     : Real    from Standard;
    v2     : Real    from Standard;
    pc1    : Real    from Standard;
    pc2    : Real    from Standard;
    utg12d : Real    from Standard;
    vtg12d : Real    from Standard;
    utg22d : Real    from Standard;
    vtg22d : Real    from Standard;
    hass1  : Boolean from Standard;
    hass2  : Boolean from Standard;    
    hasc1  : Boolean from Standard; 
    hasc2  : Boolean from Standard;
    istgt  : Boolean from Standard;    
end Point;