-- File:	Geom_Vector.cdl
-- Created:	Wed Mar 10 11:02:36 1993
-- Author:	JCV
--		<fid@phylox>
-- Copyright:	 Matra Datavision 1993


deferred class Vector from Geom inherits Geometry from Geom


        ---Purpose :  The abstract class Vector describes the common
    	-- behavior of vectors in 3D space.
    	-- The Geom package provides two concrete classes of
    	-- vectors: Geom_Direction (unit vector) and Geom_VectorWithMagnitude.

uses Ax1 from gp, 
     Ax2 from gp,
     Pnt from gp,
     Vec from gp

raises ConstructionError       from Standard,
       DomainError             from Standard,
       VectorWithNullMagnitude from gp

is


  Reverse (me : mutable);
        ---Purpose : Reverses the vector <me>.


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


  Angle (me; Other : Vector)   returns Real
    	---Purpose : Computes the angular value, in radians, between this
    	-- vector and vector Other. The result is a value between 0 and Pi.
    	-- Exceptions
    	-- gp_VectorWithNullMagnitude if:
    	-- - the magnitude of this vector is less than or equal to
    	--   gp::Resolution(), or
    	-- - the magnitude of vector Other is less than or equal
    	--   to gp::Resolution().
       raises VectorWithNullMagnitude;
       
    
  AngleWithRef (me; Other , VRef : Vector)   returns Real
    	---Purpose : Computes the angular value, in radians, between this
    	-- vector and vector Other. The result is a value
    	-- between -Pi and Pi. The vector VRef defines the
    	-- positive sense of rotation: the angular value is positive
    	-- if the cross product this ^ Other has the same
    	-- orientation as VRef (in relation to the plane defined
    	-- by this vector and vector Other). Otherwise, it is negative.
    	-- Exceptions
    	-- Standard_DomainError if this vector, vector Other
    	-- and vector VRef are coplanar, except if this vector
    	-- and vector Other are parallel.
    	-- gp_VectorWithNullMagnitude if the magnitude of
    	-- this vector, vector Other or vector VRef is less than
    	-- or equal to gp::Resolution().
          raises DomainError,
                 VectorWithNullMagnitude;
 
  Coord (me; X, Y, Z : out Real);
        ---Purpose : Returns the coordinates X, Y and Z of this vector.


  Magnitude (me)  returns Real
        ---Purpose : Returns the  Magnitude of <me>.
     is deferred;


  SquareMagnitude (me)  returns Real
        ---Purpose : Returns the square magnitude of <me>.
     is deferred;

  
  X (me)  returns Real;
        ---Purpose : Returns the X coordinate of <me>.


  Y (me)  returns Real;
        ---Purpose : Returns the Y coordinate of <me>.


  Z (me) returns Real;
        ---Purpose : Returns the Z coordinate of <me>.


  Cross (me : mutable; Other : Vector)
        ---Purpose :
        --  Computes the cross product between <me> and <Other>.
     raises ConstructionError
        ---Purpose :
        --  Raised if <me> is a "Direction" and if <me> and <Other>
        --  are parallel because it is not possible to build a 
        --  "Direction" with null length.
     is deferred;
     

  Crossed (me; Other : Vector)  returns mutable like me
        ---Purpose :
        --  Computes the cross product between <me> and <Other>.
        --  A new direction is returned.

     raises ConstructionError
        ---Purpose :
        --  Raised if <me> is a "Direction" and if the two vectors 
        --  are parallel because it is not possible to create a
        --  "Direction" with null length.
     is deferred;


  CrossCross (me : mutable; V1, V2 : Vector)
        ---Purpose :
        --  Computes the triple vector product  <me> ^(V1 ^ V2).
     raises ConstructionError
        ---Purpose :
        --  Raised if <me> is a "Direction" and if V1 and V2 are parallel 
        --  or <me> and (V1 ^ V2) are  parallel
     is deferred;
     

  CrossCrossed (me; V1, V2 : Vector)   returns mutable like me
        ---Purpose :
        --  Computes the triple vector product <me> ^(V1 ^ V2).
     raises ConstructionError
        ---Purpose :
        --  Raised if <me> is a direction and if V1 and V2 are 
        --  parallel or <me> and (V1 ^ V2) are parallel
     is deferred;


  Dot (me; Other : Vector)  returns Real;
        ---Purpose : Computes the scalar product of this vector and vector Other.


  DotCross (me; V1, V2 : Vector)  returns Real;
        ---Purpose : 
        --  Computes the triple scalar product. Returns me . (V1 ^ V2)


  Vec (me)  returns Vec;
        ---Purpose : Converts this vector into a gp_Vec vector.
    	---C++: return const&


fields

  gpVec : Vec is protected;

end;