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168c27c69e
Add new interfaces GetEyePosition(), GetClippingRange(), GetAspectRatio() to IVTK_IView Add ivtkviewparams command to print current parameters of view Add ivtkcamera comand to print current camera parameters or manages camera parameters (set ortho or persp projection)
109 lines
4.7 KiB
C++
109 lines
4.7 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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#include <vtkSmartPointer.h>
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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 camera position
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Standard_EXPORT virtual void GetEyePosition (double& theX, double& theY, double& theZ) 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 The location of the near and far clipping planes along the direction of projection
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Standard_EXPORT virtual void GetClippingRange (double& theZNear, double& theZFar) const Standard_OVERRIDE;
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//! @return The current view the aspect ratio
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Standard_EXPORT virtual double GetAspectRatio() 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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vtkSmartPointer<vtkRenderer> myRenderer;
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};
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#endif // __IVTKVTK_VIEW_H__
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