-- File:	Geom_Axis1Placement.cdl
-- Created:	Tue Mar  9 19:24:06 1993
-- Author:	JCV
--		<fid@phylox>
-- Copyright:	 Matra Datavision 1993



class Axis1Placement from Geom inherits AxisPlacement from Geom

	---Purpose : Describes an axis in 3D space.
    	-- An axis is defined by:
    	-- - its origin, also termed the "Location point" of the axis,
    	-- - its unit vector, termed the "Direction" of the axis.
    	-- Note: Geom_Axis1Placement axes provide the
    	-- same kind of "geometric" services as gp_Ax1 axes
    	-- but have more complex data structures. The
    	-- geometric objects provided by the Geom package
    	-- use gp_Ax1 objects to include axes in their data
    	-- structures, or to define an axis of symmetry or axis of rotation.
    	-- Geom_Axis1Placement axes are used in a context
    	-- where they can be shared by several objects
    	-- contained inside a common data structure.
        
uses Ax1      from gp, 
     Ax2      from gp,
     Dir      from gp,
     Pnt      from gp,
     Trsf     from gp,
     Geometry from Geom

is


  Create (A1 : Ax1)   returns mutable Axis1Placement;
        ---Purpose : Returns a transient copy of A1.


  Create (P : Pnt; V : Dir)   returns mutable Axis1Placement;
        ---Purpose :
        --  P is the origin of the axis placement and V is the direction
        --  of the axis placement.

  Ax1 (me)  returns Ax1;
        ---Purpose : Returns a non transient copy of <me>.
    	---C++: return const&

  Reverse (me : mutable);
        ---Purpose : Reverses the direction of the axis placement.

  Reversed (me)  returns mutable Axis1Placement
        ---Purpose :  Returns a copy of <me> reversed.
     is static;
     

  SetDirection (me : mutable; V : Dir);
        ---Purpose : Assigns V to the unit vector of this axis.

  Transform (me : mutable; T : Trsf);
    	---Purpose: Applies the transformation T to this axis.

  Copy (me)  returns mutable like me;

    	---Purpose: Creates a new object, which is a copy of this axis.
  
end;