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-- File: MakeDir2d.cdl
-- Created: Wed Aug 26 14:30:57 1992
-- Author: Remi GILET
-- <reg@topsn3>
---Copyright: Matra Datavision 1992
class MakeDir2d from gce inherits Root from gce
---Purpose : This class implements the following algorithms used
-- to create a Dir2d from gp.
-- * Create a Dir2d with 2 points.
-- * Create a Dir2d with a Vec2d.
-- * Create a Dir2d with a XY from gp.
-- * Create a Dir2d with a 2 Reals (Coordinates).
uses Pnt2d from gp,
Vec2d from gp,
Dir2d from gp,
XY from gp,
Real from Standard
raises NotDone from StdFail
is
Create (V : Vec2d from gp) returns MakeDir2d;
--- Purpose : Normalizes the vector V and creates a direction.
-- Status is "NullVector" if V.Magnitude() <= Resolution.
Create (Coord : XY from gp) returns MakeDir2d;
--- Purpose : Creates a direction from a triplet of coordinates.
-- Status is "NullVector" if Coord.Modulus() <=
-- Resolution from gp.
Create ( Xv, Yv : Real from Standard) returns MakeDir2d;
--- Purpose : Creates a direction with its 3 cartesian coordinates.
-- Status is "NullVector" if Sqrt(Xv*Xv + Yv*Yv )
-- <= Resolution
Create(P1 : Pnt2d from gp;
P2 : Pnt2d from gp) returns MakeDir2d;
---Purpose : Make a Dir2d from gp <TheDir> passing through 2
-- Pnt <P1>,<P2>.
-- Status is "ConfusedPoints" if <P1> and <P2> are confused.
-- Warning
-- If an error occurs (that is, when IsDone returns
-- false), the Status function returns:
-- - gce_ConfusedPoints if points P1 and P2 are coincident, or
-- - gce_NullVector if one of the following is less
-- than or equal to gp::Resolution():
-- - the magnitude of vector V,
-- - the modulus of Coord,
-- - Sqrt(Xv*Xv + Yv*Yv).
Value(me) returns Dir2d from gp
raises NotDone
is static;
---C++: return const&
---Purpose: Returns the constructed unit vector.
-- Exceptions StdFail_NotDone if no unit vector is constructed.
Operator(me) returns Dir2d from gp
is static;
---C++: return const&
---C++: alias "Standard_EXPORT operator gp_Dir2d() const;"
fields
TheDir2d : Dir2d from gp;
--The solution from gp.
end MakeDir2d;
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