-- File:	GeomLProp.cdl
-- Created:	Thu Mar 26 10:42:56 1992
-- Author:	Herve LEGRAND
--		<hl@topsn3>
---Copyright:	 Matra Datavision 1992

package GeomLProp

    ---Purpose: These global functions compute the degree of
    --          continuity of a 3D curve built by concatenation of two
    --          other curves (or portions of curves) at their junction point.

uses Standard, gp, Geom, GeomAbs, LProp

is
    
    private  class CurveTool; 
    private  class SurfaceTool;
					    
    class CLProps from GeomLProp 
            instantiates CLProps from LProp(Curve      from Geom,
	                                    Vec        from gp,
					    Pnt        from gp,
					    Dir        from gp,
					    CurveTool  from GeomLProp); 
					     

    class SLProps from GeomLProp 
            instantiates SLProps from LProp(Surface     from Geom,
	                                    SurfaceTool from GeomLProp); 

    
    Continuity(C1,C2 : Curve from Geom;
    	       u1,u2 : Real from Standard;
    	       r1,r2 : Boolean from Standard;
               tl,ta : Real from Standard) 
    ---Purpose: Computes the regularity at the junction between C1 and
    --          C2. The booleans r1 and r2 are true if the curves must
    --          be taken reversed.  The point u1 on C1 and the point
    --          u2 on C2 must be confused.
    --          tl and ta are the linear and angular tolerance used two
    --          compare the derivative.
    returns Shape from GeomAbs;

    
    Continuity(C1,C2 : Curve from Geom;
    	       u1,u2 : Real from Standard;
    	       r1,r2 : Boolean from Standard) 
    ---Purpose: The  same  as  preciding   but   using  the   standard
    --          tolerances from package Precision.
    returns Shape from GeomAbs;

end GeomLProp;