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c785481848
Compiler warnings eliminated: - VC++: potential use of uninitialized variable - GCC: potential use of uninitialized variable [-Wmaybe-uninitialized], redundant const on return value [-Wignored-qualifiers] - CLang: missing override specifier on overloaded virtual function [-Winconsistent-missing-override], function call within typeid() [-Wpotentially-evaluated-expression]
99 lines
4.1 KiB
C++
99 lines
4.1 KiB
C++
// Created on: 2011-10-14
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// Created by: Roman KOZLOV
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// Copyright (c) 2011-2014 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 __IVTKVTK_VIEW_H__
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#define __IVTKVTK_VIEW_H__
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#include <IVtk_IView.hxx>
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class vtkRenderer;
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class IVtkVTK_View;
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DEFINE_STANDARD_HANDLE( IVtkVTK_View, IVtk_IView )
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//! @class IVtkVTK_View
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//! @brief ICamera implementation for VTK.
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//!
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//! This class is used for obtaining view transformation parameters.
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//! These parameters are used by selection algorithm to compute
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//! projections of selectable (active) 3D shapes.
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class IVtkVTK_View : public IVtk_IView
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{
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public:
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typedef Handle(IVtkVTK_View) Handle;
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Standard_EXPORT IVtkVTK_View (vtkRenderer* theRenderer);
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//! Destructor
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Standard_EXPORT virtual ~IVtkVTK_View();
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//! @return true if this is a perspective view, and false otherwise.
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Standard_EXPORT virtual bool IsPerspective() const Standard_OVERRIDE;
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//! @return The focal distance of the view
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Standard_EXPORT virtual double GetDistance() const Standard_OVERRIDE;
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//! @return The world coordinates of the view position
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Standard_EXPORT virtual void GetPosition (double& theX, double& theY, double& theZ) const Standard_OVERRIDE;
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//! @return The "view up" direction of the view
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Standard_EXPORT virtual void GetViewUp (double& theDx, double& theDy, double& theDz) const Standard_OVERRIDE;
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//! @return The projection direction vector of this view
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Standard_EXPORT virtual void GetDirectionOfProjection (double& theDx,
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double& theDy,
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double& theDz) const Standard_OVERRIDE;
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//! @return Three doubles containing scale components of the view transformation
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Standard_EXPORT virtual void GetScale (double& theX, double& theY, double& theZ) const Standard_OVERRIDE;
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//! @return The current view's zoom factor (for parallel projection)
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Standard_EXPORT virtual double GetParallelScale() const Standard_OVERRIDE;
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//! @return The current view angle (for perspective projection)
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Standard_EXPORT virtual double GetViewAngle() const Standard_OVERRIDE;
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//! @return Two doubles containing the display coordinates of the view window center
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Standard_EXPORT virtual void GetViewCenter (double& theX, double& theY) const Standard_OVERRIDE;
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//! Gets window size in screen coordinates in pixels
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Standard_EXPORT virtual void GetWindowSize (int& theX, int& theY) const Standard_OVERRIDE;
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//! Gets camera projection and orientation matrices
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Standard_EXPORT virtual void GetCamera (Graphic3d_Mat4d& theProj,
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Graphic3d_Mat4d& theOrient,
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Standard_Boolean& theIsOrtho) const Standard_OVERRIDE;
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//! Gets viewport coordinates
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Standard_EXPORT virtual void GetViewport (Standard_Real& theX,
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Standard_Real& theY,
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Standard_Real& theWidth,
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Standard_Real& theHeight) const Standard_OVERRIDE;
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//! Converts 3D display coordinates into 3D world coordinates.
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//! @param [in] theDisplayPnt 2d point of display coordinates
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//! @param [out] theWorldPnt 3d point of world coordinates
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//! @return true if conversion was successful, false otherwise
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Standard_EXPORT virtual bool DisplayToWorld (const gp_XY& theDisplayPnt, gp_XYZ& theWorldPnt) const Standard_OVERRIDE;
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DEFINE_STANDARD_RTTIEXT(IVtkVTK_View,IVtk_IView)
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private:
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vtkRenderer* myRenderer;
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};
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#endif // __IVTKVTK_VIEW_H__
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