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0f57ab750d
All occurrences of Standard_EXPORT attached to inline methods in OCCT code are eliminated. Some unused classes and C++ files producing no code are deleted.
198 lines
9.4 KiB
C++
198 lines
9.4 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 <gp_GTrsf.hxx>
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#include <gp_Pnt.hxx>
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#include <gp_Pln.hxx>
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#include <Graphic3d_Camera.hxx>
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#include <Graphic3d_ClipPlane.hxx>
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#include <Graphic3d_SequenceOfHClipPlane.hxx>
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#include <Graphic3d_WorldViewProjState.hxx>
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#include <TColgp_HArray1OfPnt.hxx>
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#include <TColgp_Array1OfPnt2d.hxx>
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#include <Select3D_BndBox3d.hxx>
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#include <SelectMgr_FrustumBuilder.hxx>
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#include <Select3D_TypeOfSensitivity.hxx>
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#include <SelectMgr_VectorTypes.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 Standard_Transient
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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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virtual ~SelectMgr_BaseFrustum() {}
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//! Return camera definition.
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const Handle(Graphic3d_Camera)& Camera() const { return myCamera; }
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//! Passes camera projection and orientation matrices to builder
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Standard_EXPORT void SetCamera (const Handle(Graphic3d_Camera)& theCamera);
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//! Passes camera projection and orientation matrices to builder
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Standard_EXPORT 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());
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//! @return current camera projection transformation common for all selecting volumes
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Standard_EXPORT const Graphic3d_Mat4d& ProjectionMatrix() const;
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//! @return current camera world view transformation common for all selecting volumes
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Standard_EXPORT const Graphic3d_Mat4d& WorldViewMatrix() const;
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//! @return current camera world view projection transformation state
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Standard_EXPORT const Graphic3d_WorldViewProjState& WorldViewProjState() const;
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Standard_EXPORT void SetPixelTolerance (const Standard_Integer theTol);
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Standard_EXPORT void SetWindowSize (const Standard_Integer theWidth,
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const Standard_Integer theHeight);
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Standard_EXPORT void WindowSize (Standard_Integer& theWidth,
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Standard_Integer& theHeight) const;
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//! Passes viewport parameters to builder
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Standard_EXPORT 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);
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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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//! Builds volume according to the point and given pixel tolerance
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virtual void Build (const gp_Pnt2d& /*thePoint*/) {}
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//! Builds volume according to the selected rectangle
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virtual void Build (const gp_Pnt2d& /*theMinPt*/,
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const gp_Pnt2d& /*theMaxPt*/) {}
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//! Builds volume according to the triangle given
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virtual void Build (const gp_Pnt2d& /*theP1*/,
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const gp_Pnt2d& /*theP2*/,
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const gp_Pnt2d& /*theP3*/) {}
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//! Builds selecting volumes set according to polyline points
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virtual void Build (const TColgp_Array1OfPnt2d& /*thePoints*/) {}
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//! IMPORTANT: Scaling makes sense only for frustum built on a single point!
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//! Note that this method does not perform any checks on type of the frustum.
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//! Returns a copy of the frustum resized according to the scale factor given
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//! and transforms it using the matrix given.
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//! There are no default parameters, but in case if:
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//! - transformation only is needed: @theScaleFactor must be initialized as any negative value;
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//! - scale only is needed: @theTrsf must be set to gp_Identity.
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virtual Handle(SelectMgr_BaseFrustum) ScaleAndTransform (const Standard_Integer /*theScaleFactor*/,
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const gp_GTrsf& /*theTrsf*/) const
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{
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return NULL;
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}
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//! SAT intersection test between defined volume and given axis-aligned box
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Standard_EXPORT virtual Standard_Boolean Overlaps (const SelectMgr_Vec3& theBoxMin,
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const SelectMgr_Vec3& theBoxMax,
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Standard_Real& theDepth);
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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 Overlaps (const SelectMgr_Vec3& theBoxMin,
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const SelectMgr_Vec3& theBoxMax,
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Standard_Boolean* theInside = NULL);
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//! Intersection test between defined volume and given point
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Standard_EXPORT virtual Standard_Boolean Overlaps (const gp_Pnt& thePnt,
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Standard_Real& theDepth);
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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 Overlaps (const gp_Pnt& thePnt);
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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 Overlaps (const TColgp_Array1OfPnt& theArrayOfPnts,
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Select3D_TypeOfSensitivity theSensType,
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Standard_Real& theDepth);
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//! Checks if line segment overlaps selecting frustum
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Standard_EXPORT virtual Standard_Boolean Overlaps (const gp_Pnt& thePnt1,
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const gp_Pnt& thePnt2,
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Standard_Real& theDepth);
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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 Overlaps (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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Standard_Real& theDepth);
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//! Measures distance between 3d projection of user-picked
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//! screen point and given point theCOG
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Standard_EXPORT virtual Standard_Real DistToGeometryCenter (const gp_Pnt& theCOG);
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Standard_EXPORT virtual gp_Pnt DetectedPoint (const Standard_Real theDepth) const;
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//! Checks if the point of sensitive in which selection was detected belongs
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//! to the region defined by clipping planes
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Standard_EXPORT virtual Standard_Boolean IsClipped (const Graphic3d_SequenceOfHClipPlane& thePlanes,
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const Standard_Real theDepth);
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//! Valid for point selection only!
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//! Computes depth range for global (defined for the whole view) clipping planes.
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virtual void SetViewClipping (const Handle(Graphic3d_SequenceOfHClipPlane)& /*thePlanes*/) {};
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//! Set if view clipping plane is enabled or not.
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//! @return previous value of the flag
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virtual Standard_Boolean SetViewClippingEnabled (const Standard_Boolean /*theToEnable*/) { return Standard_False; }
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//! Stores plane equation coefficients (in the following form:
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//! Ax + By + Cz + D = 0) to the given vector
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virtual void GetPlanes (NCollection_Vector<SelectMgr_Vec4>& thePlaneEquations) const
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{
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thePlaneEquations.Clear();
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return;
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}
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DEFINE_STANDARD_RTTIEXT(SelectMgr_BaseFrustum,Standard_Transient)
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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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