-- File:	UnitsMethods.cdl
-- Created:	Thu Sep 29 10:44:19 1994
-- Author:	Dieter THIEMANN
--		<dth@stylox>
---Copyright:	 Matra Datavision 1994

package UnitsMethods

uses

    Standard, Geom, Geom2d
    
is

    InitializeFactors(LengthFactor :     Real from Standard;
                      PlaneAngleFactor : Real from Standard;
                      SolidAngleFactor : Real from Standard);

       ---Purpose: Initializes the 3 factors for the conversion of
       --          units

    LengthFactor       
    	returns   Real from Standard;

    PlaneAngleFactor   
    	returns   Real from Standard;

    SolidAngleFactor   
    	returns   Real from Standard;

    Set3dConversion(B : Boolean from Standard);
    
    Convert3d          
    	returns   Boolean from Standard;
    
    RadianToDegree(C : Curve from Geom2d; 
    	    	   S : Surface from Geom)
    	returns Curve from Geom2d;
		   
    DegreeToRadian(C : Curve from Geom2d; 
    	    	   S : Surface from Geom)
    	returns Curve from Geom2d;

    MirrorPCurve(C : Curve from Geom2d)
	returns Curve from Geom2d;

    GetLengthFactorValue (param: Integer) returns Real;
    	---Purpose: Returns value of unit encoded by parameter param
        --          (integer value denoting unit, as described in IGES
        --          standard) in millimeters
	
    GetCasCadeLengthUnit returns Real;
    	---Purpose: Returns value of current internal unit for CASCADE
	--          in millemeters
	
    SetCasCadeLengthUnit (param: Integer);
    	---Purpose: Sets value of current internal unit for CASCADE
	--          by parameter param (integer value denoting unit, 
        --          as described in IGES standard) 
	--          GetCasCadeLengthUnit() will then return value 
	--          equal to GetLengthFactorValue(param)
	
end UnitsMethods;