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https://github.com/Open-Cascade-SAS/OCCT.git
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mkrylova
138 lines
7.8 KiB
C++
138 lines
7.8 KiB
C++
// Created on: 2014-05-22
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// Created by: Varvara POSKONINA
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// Copyright (c) 2005-2014 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 _SelectMgr_BaseFrustum_HeaderFile
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#define _SelectMgr_BaseFrustum_HeaderFile
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#include <SelectMgr_BaseIntersector.hxx>
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//! This class is an interface for different types of selecting frustums,
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//! defining different selection types, like point, box or polyline
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//! selection. It contains signatures of functions for detection of
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//! overlap by sensitive entity and initializes some data for building
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//! the selecting frustum
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class SelectMgr_BaseFrustum : public SelectMgr_BaseIntersector
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{
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public:
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//! Creates new selecting volume with pixel toletance set to 2,
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//! orthographic camera and empty frustum builder
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Standard_EXPORT SelectMgr_BaseFrustum();
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//! Destructor
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virtual ~SelectMgr_BaseFrustum() {}
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//! Nullifies the builder created in the constructor and copies the pointer given
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Standard_EXPORT void SetBuilder (const Handle(SelectMgr_FrustumBuilder)& theBuilder);
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//! Return camera definition.
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virtual const Handle(Graphic3d_Camera)& Camera() const Standard_OVERRIDE { return myCamera; }
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//! Passes camera projection and orientation matrices to builder
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Standard_EXPORT virtual void SetCamera (const Handle(Graphic3d_Camera)& theCamera) Standard_OVERRIDE;
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//! Passes camera projection and orientation matrices to builder
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Standard_EXPORT virtual void SetCamera (const Graphic3d_Mat4d& theProjection,
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const Graphic3d_Mat4d& theWorldView,
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const Standard_Boolean theIsOrthographic,
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const Graphic3d_WorldViewProjState& theWVPState = Graphic3d_WorldViewProjState()) Standard_OVERRIDE;
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//! @return current camera projection transformation common for all selecting volumes
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Standard_EXPORT virtual const Graphic3d_Mat4d& ProjectionMatrix() const Standard_OVERRIDE;
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//! @return current camera world view transformation common for all selecting volumes
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Standard_EXPORT virtual const Graphic3d_Mat4d& WorldViewMatrix() const Standard_OVERRIDE;
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//! @return current camera world view projection transformation state
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Standard_EXPORT virtual const Graphic3d_WorldViewProjState& WorldViewProjState() const Standard_OVERRIDE;
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Standard_EXPORT virtual void SetPixelTolerance (const Standard_Integer theTol) Standard_OVERRIDE;
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Standard_EXPORT virtual void SetWindowSize (const Standard_Integer theWidth,
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const Standard_Integer theHeight) Standard_OVERRIDE;
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Standard_EXPORT virtual void WindowSize (Standard_Integer& theWidth,
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Standard_Integer& theHeight) const Standard_OVERRIDE;
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//! Passes viewport parameters to builder
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Standard_EXPORT virtual void SetViewport (const Standard_Real theX,
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const Standard_Real theY,
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const Standard_Real theWidth,
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const Standard_Real theHeight) Standard_OVERRIDE;
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//! SAT intersection test between defined volume and given axis-aligned box
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Standard_EXPORT virtual Standard_Boolean OverlapsBox (const SelectMgr_Vec3& theBoxMin,
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const SelectMgr_Vec3& theBoxMax,
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const SelectMgr_ViewClipRange& theClipRange,
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SelectBasics_PickResult& thePickResult) const Standard_OVERRIDE;
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//! Returns true if selecting volume is overlapped by axis-aligned bounding box
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//! with minimum corner at point theMinPt and maximum at point theMaxPt
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Standard_EXPORT virtual Standard_Boolean OverlapsBox (const SelectMgr_Vec3& theBoxMin,
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const SelectMgr_Vec3& theBoxMax,
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Standard_Boolean* theInside = NULL) const Standard_OVERRIDE;
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//! Intersection test between defined volume and given point
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Standard_EXPORT virtual Standard_Boolean OverlapsPoint (const gp_Pnt& thePnt,
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const SelectMgr_ViewClipRange& theClipRange,
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SelectBasics_PickResult& thePickResult) const Standard_OVERRIDE;
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//! Intersection test between defined volume and given point
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//! Does not perform depth calculation, so this method is defined as
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//! helper function for inclusion test. Therefore, its implementation
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//! makes sense only for rectangular frustum with box selection mode activated.
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Standard_EXPORT virtual Standard_Boolean OverlapsPoint (const gp_Pnt& thePnt) const Standard_OVERRIDE;
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//! SAT intersection test between defined volume and given ordered set of points,
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//! representing line segments. The test may be considered of interior part or
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//! boundary line defined by segments depending on given sensitivity type
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Standard_EXPORT virtual Standard_Boolean OverlapsPolygon (const TColgp_Array1OfPnt& theArrayOfPnts,
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Select3D_TypeOfSensitivity theSensType,
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const SelectMgr_ViewClipRange& theClipRange,
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SelectBasics_PickResult& thePickResult) const Standard_OVERRIDE;
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//! Checks if line segment overlaps selecting frustum
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Standard_EXPORT virtual Standard_Boolean OverlapsSegment (const gp_Pnt& thePnt1,
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const gp_Pnt& thePnt2,
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const SelectMgr_ViewClipRange& theClipRange,
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SelectBasics_PickResult& thePickResult) const Standard_OVERRIDE;
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//! SAT intersection test between defined volume and given triangle. The test may
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//! be considered of interior part or boundary line defined by triangle vertices
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//! depending on given sensitivity type
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Standard_EXPORT virtual Standard_Boolean OverlapsTriangle (const gp_Pnt& thePt1,
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const gp_Pnt& thePt2,
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const gp_Pnt& thePt3,
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Select3D_TypeOfSensitivity theSensType,
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const SelectMgr_ViewClipRange& theClipRange,
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SelectBasics_PickResult& thePickResult) const Standard_OVERRIDE;
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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 Standard_OVERRIDE;
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DEFINE_STANDARD_RTTIEXT(SelectMgr_BaseFrustum, SelectMgr_BaseIntersector)
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protected:
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Standard_Integer myPixelTolerance; //!< Pixel tolerance
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Standard_Boolean myIsOrthographic; //!< Defines if current camera is orthographic
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Handle(SelectMgr_FrustumBuilder) myBuilder; //!< A tool implementing methods for volume build
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Handle(Graphic3d_Camera) myCamera; //!< camera definition
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};
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#endif // _SelectMgr_BaseFrustum_HeaderFile
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