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142 lines
4.2 KiB
C++
142 lines
4.2 KiB
C++
// Created on: 1993-03-10
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// Created by: JCV
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// Copyright (c) 1993-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _Geom_Direction_HeaderFile
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#define _Geom_Direction_HeaderFile
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#include <Standard.hxx>
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#include <Geom_Vector.hxx>
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#include <Standard_Real.hxx>
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class gp_Dir;
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class gp_Trsf;
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class Geom_Geometry;
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class Geom_Direction;
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DEFINE_STANDARD_HANDLE(Geom_Direction, Geom_Vector)
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//! The class Direction specifies a vector that is never null.
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//! It is a unit vector.
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class Geom_Direction : public Geom_Vector
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{
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public:
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//! Creates a unit vector with it 3 cartesian coordinates.
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//!
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//! Raised if Sqrt( X*X + Y*Y + Z*Z) <= Resolution from gp.
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Standard_EXPORT Geom_Direction(const Standard_Real X, const Standard_Real Y, const Standard_Real Z);
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//! Creates a transient copy of <me>.
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Standard_EXPORT Geom_Direction(const gp_Dir& V);
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//! Sets <me> to X,Y,Z coordinates.
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//!
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//! Raised if Sqrt( X*X + Y*Y + Z*Z) <= Resolution from gp.
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Standard_EXPORT void SetCoord (const Standard_Real X, const Standard_Real Y, const Standard_Real Z);
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//! Converts the gp_Dir unit vector V into this unit vector.
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Standard_EXPORT void SetDir (const gp_Dir& V);
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//! Changes the X coordinate of <me>.
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//!
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//! Raised if Sqrt( X*X + Y*Y + Z*Z) <= Resolution from gp.
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Standard_EXPORT void SetX (const Standard_Real X);
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//! Changes the Y coordinate of <me>.
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//!
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//! Raised if Sqrt( X*X + Y*Y + Z*Z) <= Resolution from gp.
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Standard_EXPORT void SetY (const Standard_Real Y);
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//! Changes the Z coordinate of <me>.
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//!
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//! Raised if Sqrt( X*X + Y*Y + Z*Z) <= Resolution from gp.
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Standard_EXPORT void SetZ (const Standard_Real Z);
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//! Returns the non transient direction with the same
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//! coordinates as <me>.
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Standard_EXPORT gp_Dir Dir() const;
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//! returns 1.0 which is the magnitude of any unit vector.
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Standard_EXPORT Standard_Real Magnitude() const Standard_OVERRIDE;
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//! returns 1.0 which is the square magnitude of any unit vector.
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Standard_EXPORT Standard_Real SquareMagnitude() const Standard_OVERRIDE;
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//! Computes the cross product between <me> and <Other>.
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//!
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//! Raised if the two vectors are parallel because it is
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//! not possible to have a direction with null length.
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Standard_EXPORT void Cross (const Handle(Geom_Vector)& Other) Standard_OVERRIDE;
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//! Computes the triple vector product <me> ^(V1 ^ V2).
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//!
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//! Raised if V1 and V2 are parallel or <me> and (V1 ^ V2) are
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//! parallel
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Standard_EXPORT void CrossCross (const Handle(Geom_Vector)& V1, const Handle(Geom_Vector)& V2) Standard_OVERRIDE;
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//! Computes the cross product between <me> and <Other>.
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//! A new direction is returned.
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//!
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//! Raised if the two vectors are parallel because it is
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//! not possible to have a direction with null length.
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Standard_EXPORT Handle(Geom_Vector) Crossed (const Handle(Geom_Vector)& Other) const Standard_OVERRIDE;
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//! Computes the triple vector product <me> ^(V1 ^ V2).
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//!
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//! Raised if V1 and V2 are parallel or <me> and (V1 ^ V2) are
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//! parallel
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Standard_EXPORT Handle(Geom_Vector) CrossCrossed (const Handle(Geom_Vector)& V1, const Handle(Geom_Vector)& V2) const Standard_OVERRIDE;
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//! Applies the transformation T to this unit vector, then normalizes it.
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Standard_EXPORT void Transform (const gp_Trsf& T) Standard_OVERRIDE;
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//! Creates a new object which is a copy of this unit vector.
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Standard_EXPORT Handle(Geom_Geometry) Copy() const Standard_OVERRIDE;
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DEFINE_STANDARD_RTTIEXT(Geom_Direction,Geom_Vector)
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protected:
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private:
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};
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#endif // _Geom_Direction_HeaderFile
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