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--
-- File : Direction.cdl
-- Created : Sat 9 Jan 1993
-- Author : CKY / Contract Toubro-Larsen ( Kiran )
--
---Copyright : MATRA-DATAVISION 1993
--
class Direction from IGESGeom inherits IGESEntity
---Purpose: defines IGESDirection, Type <123> Form <0>
-- in package IGESGeom
-- A direction entity is a non-zero vector in Euclidean 3-space
-- that is defined by its three components (direction ratios)
-- with respect to the coordinate axes. If x, y, z are the
-- direction ratios then (x^2 + y^2 + z^2) > 0
uses
Vec from gp,
XYZ from gp
is
Create returns mutable Direction;
-- Specific Methods pertaining to the class
Init (me : mutable; aDirection : XYZ);
---Purpose : This method is used to set the fields of the class
-- Direction
-- - aDirection : Direction ratios, Z is 0 by default
Value (me) returns Vec;
TransformedValue (me) returns Vec;
---Purpose : returns the Direction value after applying Transformation matrix
fields
--
-- Class : IGESGeom_Direction
--
-- Purpose : Declaration of variables specific to the definition
-- of the Class Direction.
--
-- Reminder : A Direction instance is defined by :
-- The three direction ratios along the three coordinate axes
theDirection : XYZ;
end Direction;
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