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139 lines
4.8 KiB
C++
139 lines
4.8 KiB
C++
// Created on: 1993-03-24
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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 _Geom2d_Geometry_HeaderFile
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#define _Geom2d_Geometry_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <Standard_Transient.hxx>
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#include <Standard_Real.hxx>
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class gp_Pnt2d;
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class gp_Ax2d;
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class gp_Vec2d;
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class gp_Trsf2d;
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class Geom2d_Geometry;
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DEFINE_STANDARD_HANDLE(Geom2d_Geometry, Standard_Transient)
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//! The general abstract class Geometry in 2D space describes
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//! the common behaviour of all the geometric entities.
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//!
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//! All the objects derived from this class can be move with a
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//! geometric transformation. Only the transformations which
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//! doesn't modify the nature of the geometry are available in
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//! this package.
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//! The method Transform which defines a general transformation
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//! is deferred. The other specifics transformations used the
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//! method Transform.
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//! All the following transformations modify the object itself.
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//! Warning
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//! Only transformations which do not modify the nature
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//! of the geometry can be applied to Geom2d objects:
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//! this is the case with translations, rotations,
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//! symmetries and scales; this is also the case with
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//! gp_Trsf2d composite transformations which are
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//! used to define the geometric transformations applied
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//! using the Transform or Transformed functions.
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//! Note: Geometry defines the "prototype" of the
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//! abstract method Transform which is defined for each
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//! concrete type of derived object. All other
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//! transformations are implemented using the Transform method.
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class Geom2d_Geometry : public Standard_Transient
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{
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public:
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//! Performs the symmetrical transformation of a Geometry
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//! with respect to the point P which is the center of the
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//! symmetry and assigns the result to this geometric object.
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Standard_EXPORT void Mirror (const gp_Pnt2d& P);
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//! Performs the symmetrical transformation of a Geometry
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//! with respect to an axis placement which is the axis of the symmetry.
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Standard_EXPORT void Mirror (const gp_Ax2d& A);
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//! Rotates a Geometry. P is the center of the rotation.
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//! Ang is the angular value of the rotation in radians.
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Standard_EXPORT void Rotate (const gp_Pnt2d& P, const Standard_Real Ang);
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//! Scales a Geometry. S is the scaling value.
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Standard_EXPORT void Scale (const gp_Pnt2d& P, const Standard_Real S);
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//! Translates a Geometry. V is the vector of the translation.
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Standard_EXPORT void Translate (const gp_Vec2d& V);
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//! Translates a Geometry from the point P1 to the point P2.
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Standard_EXPORT void Translate (const gp_Pnt2d& P1, const gp_Pnt2d& P2);
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//! Transformation of a geometric object. This tansformation
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//! can be a translation, a rotation, a symmetry, a scaling
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//! or a complex transformation obtained by combination of
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//! the previous elementaries transformations.
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//! (see class Transformation of the package Geom2d).
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//! The following transformations have the same properties
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//! as the previous ones but they don't modified the object
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//! itself. A copy of the object is returned.
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Standard_EXPORT virtual void Transform (const gp_Trsf2d& T) = 0;
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Standard_NODISCARD Standard_EXPORT Handle(Geom2d_Geometry) Mirrored (const gp_Pnt2d& P) const;
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Standard_NODISCARD Standard_EXPORT Handle(Geom2d_Geometry) Mirrored (const gp_Ax2d& A) const;
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Standard_NODISCARD Standard_EXPORT Handle(Geom2d_Geometry) Rotated (const gp_Pnt2d& P, const Standard_Real Ang) const;
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Standard_NODISCARD Standard_EXPORT Handle(Geom2d_Geometry) Scaled (const gp_Pnt2d& P, const Standard_Real S) const;
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Standard_NODISCARD Standard_EXPORT Handle(Geom2d_Geometry) Transformed (const gp_Trsf2d& T) const;
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Standard_NODISCARD Standard_EXPORT Handle(Geom2d_Geometry) Translated (const gp_Vec2d& V) const;
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Standard_NODISCARD Standard_EXPORT Handle(Geom2d_Geometry) Translated (const gp_Pnt2d& P1, const gp_Pnt2d& P2) const;
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Standard_EXPORT virtual Handle(Geom2d_Geometry) Copy() const = 0;
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//! Dumps the content of me into the stream
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Standard_EXPORT virtual void DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth = -1) const;
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DEFINE_STANDARD_RTTIEXT(Geom2d_Geometry,Standard_Transient)
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protected:
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private:
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};
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#endif // _Geom2d_Geometry_HeaderFile
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