--- /dev/null
+// Created on: 1995-03-02
+// Created by: Jean-Louis Frenkel
+// Copyright (c) 1995-1999 Matra Datavision
+// Copyright (c) 1999-2014 OPEN CASCADE SAS
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#ifndef _Aspect_RectangularGrid_HeaderFile
+#define _Aspect_RectangularGrid_HeaderFile
+
+#include <Standard.hxx>
+#include <Standard_Type.hxx>
+
+#include <Quantity_Length.hxx>
+#include <Quantity_PlaneAngle.hxx>
+#include <Standard_Real.hxx>
+#include <Aspect_Grid.hxx>
+#include <Standard_Boolean.hxx>
+class Standard_NegativeValue;
+class Standard_NullValue;
+class Standard_NumericError;
+
+
+class Aspect_RectangularGrid;
+DEFINE_STANDARD_HANDLE(Aspect_RectangularGrid, Aspect_Grid)
+
+
+class Aspect_RectangularGrid : public Aspect_Grid
+{
+
+public:
+
+
+ //! creates a new grid. By default this grid is not
+ //! active.
+ //! The first angle is given relatively to the horizontal.
+ //! The second angle is given relatively to the vertical.
+ Standard_EXPORT Aspect_RectangularGrid(const Quantity_Length aXStep, const Quantity_Length aYStep, const Quantity_Length anXOrigin = 0, const Quantity_Length anYOrigin = 0, const Quantity_PlaneAngle aFirstAngle = 0, const Quantity_PlaneAngle aSecondAngle = 0, const Quantity_PlaneAngle aRotationAngle = 0);
+
+ //! defines the x step of the grid.
+ Standard_EXPORT void SetXStep (const Quantity_Length aStep);
+
+ //! defines the y step of the grid.
+ Standard_EXPORT void SetYStep (const Quantity_Length aStep);
+
+ //! defines the angle of the second network
+ //! the fist angle is given relatively to the horizontal.
+ //! the second angle is given relatively to the vertical.
+ Standard_EXPORT void SetAngle (const Quantity_PlaneAngle anAngle1, const Quantity_PlaneAngle anAngle2);
+
+ Standard_EXPORT void SetGridValues (const Quantity_Length XOrigin, const Quantity_Length YOrigin, const Quantity_Length XStep, const Quantity_Length YStep, const Quantity_PlaneAngle RotationAngle);
+
+ //! returns the point of the grid the closest to the point X,Y
+ Standard_EXPORT void Compute (const Quantity_Length X, const Quantity_Length Y, Quantity_Length& gridX, Quantity_Length& gridY) const;
+
+ //! returns the x step of the grid.
+ Standard_EXPORT Quantity_Length XStep() const;
+
+ //! returns the x step of the grid.
+ Standard_EXPORT Quantity_Length YStep() const;
+
+ //! returns the x Angle of the grid, relatively to the horizontal.
+ Standard_EXPORT Quantity_PlaneAngle FirstAngle() const;
+
+ //! returns the y Angle of the grid, relatively to the vertical.
+ Standard_EXPORT Quantity_PlaneAngle SecondAngle() const;
+
+ Standard_EXPORT void Init() Standard_OVERRIDE;
+
+
+
+
+ DEFINE_STANDARD_RTTI(Aspect_RectangularGrid,Aspect_Grid)
+
+protected:
+
+
+
+
+private:
+
+
+ Standard_EXPORT Standard_Boolean CheckAngle (const Quantity_PlaneAngle alpha, const Quantity_PlaneAngle beta) const;
+
+ Quantity_Length myXStep;
+ Quantity_Length myYStep;
+ Quantity_PlaneAngle myFirstAngle;
+ Quantity_PlaneAngle mySecondAngle;
+ Standard_Real a1;
+ Standard_Real b1;
+ Standard_Real c1;
+ Standard_Real a2;
+ Standard_Real b2;
+ Standard_Real c2;
+
+
+};
+
+
+
+
+
+
+
+#endif // _Aspect_RectangularGrid_HeaderFile