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7aaed2ce3b
Select3D_SensitiveCircle now inherits directly from Select3D_SensitiveEntity.
The sensitive circle sector is created using the Select3D_SensitivePoly class directly.
Added appropriate methods for selecting sensitive circles.
Added parameter myIsHollow to Select3D_SensitiveCylinder class.
It allows you to search for intersections with cylinders without covers.
The Draw vcircle command has been extended with UStart and UEnd parameters
to create a sector of a circle.
Added tests: vselect/cone_cylinder/circle_sector
vselect/cone_cylinder/circle_wire
vselect/cone_cylinder/filled_circle
vselect/cone_cylinder/transformed
vselect/cone_cylinder/hollow_cone_cyl
190 lines
11 KiB
C++
190 lines
11 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_TriangularFrustum_HeaderFile
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#define _SelectMgr_TriangularFrustum_HeaderFile
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#include <SelectMgr_Frustum.hxx>
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//! This class contains representation of triangular selecting frustum, created in case
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//! of polyline selection, and algorithms for overlap detection between selecting frustum and sensitive entities.
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//! Overlap detection tests are implemented according to the terms of separating axis theorem (SAT).
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//! NOTE: the object of this class can be created only as part of SelectMgr_TriangularFrustumSet.
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class SelectMgr_TriangularFrustum : public SelectMgr_Frustum<3>
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{
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public:
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//! Auxiliary structure to define selection triangle
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struct SelectionTriangle
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{
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gp_Pnt2d Points[3];
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};
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public:
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//! Destructor.
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Standard_EXPORT virtual ~SelectMgr_TriangularFrustum();
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//! Initializes selection triangle by input points
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Standard_EXPORT void Init (const gp_Pnt2d& theP1,
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const gp_Pnt2d& theP2,
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const gp_Pnt2d& theP3);
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//! Creates new triangular frustum with bases of triangles with vertices theP1, theP2 and theP3
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//! projections onto near and far view frustum planes (only for triangular frustums)
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//! NOTE: it should be called after Init() method
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Standard_EXPORT virtual void Build() Standard_OVERRIDE;
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//! Returns FALSE (not applicable to this volume).
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virtual Standard_Boolean IsScalable() const Standard_OVERRIDE { return false; }
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//! Returns a copy of the frustum transformed according to the matrix given
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Standard_EXPORT virtual Handle(SelectMgr_BaseIntersector) ScaleAndTransform (const Standard_Integer theScale,
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const gp_GTrsf& theTrsf,
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const Handle(SelectMgr_FrustumBuilder)& theBuilder) const Standard_OVERRIDE;
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public: //! @name SAT Tests for different objects
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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& theMinPnt,
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const SelectMgr_Vec3& theMaxPnt,
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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& theMinPt,
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const SelectMgr_Vec3& theMaxPt,
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Standard_Boolean* theInside) 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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//! Always returns FALSE (not applicable to this selector).
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virtual Standard_Boolean OverlapsPoint (const gp_Pnt& ) const Standard_OVERRIDE
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{
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return Standard_False;
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}
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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& thePnt1,
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const gp_Pnt& thePnt2,
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const gp_Pnt& thePnt3,
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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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//! Returns true if selecting volume is overlapped by sphere with center theCenter
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//! and radius theRadius
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Standard_EXPORT virtual Standard_Boolean OverlapsSphere (const gp_Pnt& theCenter,
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const Standard_Real theRadius,
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Standard_Boolean* theInside = NULL) const Standard_OVERRIDE;
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//! Returns true if selecting volume is overlapped by sphere with center theCenter
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//! and radius theRadius
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Standard_EXPORT virtual Standard_Boolean OverlapsSphere (const gp_Pnt& theCenter,
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const Standard_Real theRadius,
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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 cylinder (or cone) with radiuses theBottomRad
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//! and theTopRad, height theHeight and transformation to apply theTrsf.
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Standard_EXPORT virtual Standard_Boolean OverlapsCylinder (const Standard_Real theBottomRad,
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const Standard_Real theTopRad,
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const Standard_Real theHeight,
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const gp_Trsf& theTrsf,
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const Standard_Boolean theIsHollow,
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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 cylinder (or cone) with radiuses theBottomRad
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//! and theTopRad, height theHeight and transformation to apply theTrsf.
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Standard_EXPORT virtual Standard_Boolean OverlapsCylinder (const Standard_Real theBottomRad,
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const Standard_Real theTopRad,
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const Standard_Real theHeight,
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const gp_Trsf& theTrsf,
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const Standard_Boolean theIsHollow,
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Standard_Boolean* theInside = NULL) const Standard_OVERRIDE;
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//! Returns true if selecting volume is overlapped by circle with radius theRadius,
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//! boolean theIsFilled and transformation to apply theTrsf.
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//! The position and orientation of the circle are specified
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//! via theTrsf transformation for gp::XOY() with center in gp::Origin().
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Standard_EXPORT virtual Standard_Boolean OverlapsCircle (const Standard_Real theRadius,
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const gp_Trsf& theTrsf,
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const Standard_Boolean theIsFilled,
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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 circle with radius theRadius,
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//! boolean theIsFilled and transformation to apply theTrsf.
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//! The position and orientation of the circle are specified
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//! via theTrsf transformation for gp::XOY() with center in gp::Origin().
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Standard_EXPORT virtual Standard_Boolean OverlapsCircle (const Standard_Real theRadius,
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const gp_Trsf& theTrsf,
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const Standard_Boolean theIsFilled,
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Standard_Boolean* theInside = NULL) const Standard_OVERRIDE;
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public:
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//! Nullifies the handle to corresponding builder instance to prevent memory leaks
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Standard_EXPORT void Clear();
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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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Standard_EXPORT virtual void GetPlanes (NCollection_Vector<SelectMgr_Vec4>& thePlaneEquations) 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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protected:
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//! Creates an empty triangular frustum.
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Standard_EXPORT SelectMgr_TriangularFrustum();
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private:
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void cacheVertexProjections (SelectMgr_TriangularFrustum* theFrustum) const;
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protected:
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SelectionTriangle mySelTriangle; //!< parameters of selection triangle (it is used to build triangle frustum)
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public:
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DEFINE_STANDARD_RTTIEXT(SelectMgr_TriangularFrustum, SelectMgr_Frustum<3>)
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friend class SelectMgr_TriangularFrustumSet;
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};
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#endif // _SelectMgr_TriangularFrustum_HeaderFile
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