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30a1b24e19
1) Added method Graphic3d_Camera::FrustumPoints() returning corner points of camera frustum. 2) Refactored methods OpenGl_BVHTreeSelector::isFullOut(...) and OpenGl_BVHTreeSelector::CacheClipPtsProjections() 3) Changed computation algorithm of frustum planes (build them by corner points) 4) Added interactive object AIS_CameraFrustum to draw camera frustum. 5) Extended Draw command "vcamera" with option displaying camera frustum.
86 lines
3.1 KiB
C++
86 lines
3.1 KiB
C++
// Created on: 2018-12-12
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// Created by: Olga SURYANINOVA
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// Copyright (c) 2018 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 _AIS_CameraFrustum_HeaderFile
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#define _AIS_CameraFrustum_HeaderFile
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#include <AIS_InteractiveObject.hxx>
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class Graphic3d_ArrayOfSegments;
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class Graphic3d_ArrayOfTriangles;
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//! Presentation for drawing camera frustum.
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//! Default configuration is built with filling and some transparency.
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class AIS_CameraFrustum : public AIS_InteractiveObject
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{
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DEFINE_STANDARD_RTTIEXT(AIS_CameraFrustum, AIS_InteractiveObject)
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public:
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//! Selection modes supported by this object
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enum SelectionMode
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{
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SelectionMode_Edges = 0, //!< detect by edges (default)
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SelectionMode_Volume = 1, //!< detect by volume
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};
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public:
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//! Constructs camera frustum with default configuration.
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Standard_EXPORT AIS_CameraFrustum();
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//! Sets camera frustum.
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Standard_EXPORT void SetCameraFrustum (const Handle(Graphic3d_Camera)& theCamera);
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//! Setup custom color.
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Standard_EXPORT virtual void SetColor (const Quantity_Color& theColor) Standard_OVERRIDE;
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//! Restore default color.
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Standard_EXPORT virtual void UnsetColor() Standard_OVERRIDE;
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//! Restore transparency setting.
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Standard_EXPORT virtual void UnsetTransparency() Standard_OVERRIDE;
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//! Return true if specified display mode is supported.
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Standard_EXPORT virtual Standard_Boolean AcceptDisplayMode (const Standard_Integer theMode) const Standard_OVERRIDE;
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protected:
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//! Computes presentation of camera frustum.
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Standard_EXPORT virtual void Compute (const Handle(PrsMgr_PresentationManager3d)& thePrsMgr,
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const Handle(Prs3d_Presentation)& thePrs,
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const Standard_Integer theMode) Standard_OVERRIDE;
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//! Compute selection.
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Standard_EXPORT virtual void ComputeSelection (const Handle(SelectMgr_Selection)& theSelection,
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const Standard_Integer theMode) Standard_OVERRIDE;
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private:
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//! Fills triangles primitive array for camera frustum filling.
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void fillTriangles();
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//! Fills polylines primitive array for camera frustum borders.
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void fillBorders();
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protected:
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NCollection_Array1<Graphic3d_Vec3d> myPoints; //!< Array of points
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Handle(Graphic3d_ArrayOfTriangles) myTriangles; //!< Triangles for camera frustum filling
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Handle(Graphic3d_ArrayOfSegments) myBorders; //!< Segments for camera frustum borders
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};
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#endif // _AIS_CameraFrustum_HeaderFile
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