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871dcdc201
- getter for selection frustum computed during last run of selection mechanism was added to SelectMgr_SelectingVolumeManager; - getters for frustum planes were added to SelectMgr_BaseFrustum and its successors; - an API for applications to get frustum planes was added to SelectBasics_SelectingVolumeManager.
120 lines
5.4 KiB
C++
120 lines
5.4 KiB
C++
// Created on: 2014-08-21
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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 _SelectBasics_SelectingVolumeManager_HeaderFile
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#define _SelectBasics_SelectingVolumeManager_HeaderFile
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#include <BVH_Box.hxx>
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#include <gp_Pnt.hxx>
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#include <TColgp_HArray1OfPnt.hxx>
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class Bnd_Box;
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class gp_Pnt;
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//! This class provides an interface for selecting volume manager,
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//! which is responsible for all overlap detection methods and
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//! calculation of minimum depth, distance to center of geometry
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//! and detected closest point on entity.
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class SelectBasics_SelectingVolumeManager
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{
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public:
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//! Available selection types
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enum SelectionType { Point, Box, Polyline, Unknown };
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public:
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SelectBasics_SelectingVolumeManager() {};
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virtual ~SelectBasics_SelectingVolumeManager() {};
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virtual Standard_Integer GetActiveSelectionType() const = 0;
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//! Returns true if selecting volume is overlapped by box theBox
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virtual Standard_Boolean Overlaps (const NCollection_Vec3<Standard_Real>& theBoxMin,
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const NCollection_Vec3<Standard_Real>& theBoxMax,
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Standard_Real& theDepth) = 0;
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//! Returns true if selecting volume is overlapped by axis-aligned bounding box with minimum
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//! corner at point theMinPt and maximum at point theMaxPt
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virtual Standard_Boolean Overlaps (const NCollection_Vec3<Standard_Real>& theBoxMin,
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const NCollection_Vec3<Standard_Real>& theBoxMax,
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Standard_Boolean* theInside = NULL) = 0;
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//! Returns true if selecting volume is overlapped by point thePnt
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virtual Standard_Boolean Overlaps (const gp_Pnt& thePnt,
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Standard_Real& theDepth) = 0;
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//! Returns true if selecting volume is overlapped by point thePnt.
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//! Does not perform depth calculation, so this method is defined as
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//! helper function for inclusion test.
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virtual Standard_Boolean Overlaps (const gp_Pnt& thePnt) = 0;
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//! Returns true if selecting volume is overlapped by planar convex polygon, which points
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//! are stored in theArrayOfPts, taking into account sensitivity type theSensType
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virtual Standard_Boolean Overlaps (const Handle(TColgp_HArray1OfPnt)& theArrayOfPts,
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Standard_Integer theSensType,
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Standard_Real& theDepth) = 0;
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//! Returns true if selecting volume is overlapped by planar convex polygon, which points
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//! are stored in theArrayOfPts, taking into account sensitivity type theSensType
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virtual Standard_Boolean Overlaps (const TColgp_Array1OfPnt& theArrayOfPts,
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Standard_Integer theSensType,
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Standard_Real& theDepth) = 0;
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//! Returns true if selecting volume is overlapped by line segment with start point at thePt1
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//! and end point at thePt2
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virtual Standard_Boolean Overlaps (const gp_Pnt& thePt1,
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const gp_Pnt& thePt2,
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Standard_Real& theDepth) = 0;
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//! Returns true if selecting volume is overlapped by triangle with vertices thePt1,
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//! thePt2 and thePt3, taking into account sensitivity type theSensType
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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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Standard_Integer theSensType,
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Standard_Real& theDepth) = 0;
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//! Calculates distance from 3d projection of user-defined selection point
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//! to the given point theCOG
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virtual Standard_Real DistToGeometryCenter (const gp_Pnt& theCOG) = 0;
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virtual gp_Pnt DetectedPoint (const Standard_Real theDepth) const = 0;
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virtual Standard_Boolean IsOverlapAllowed() const = 0;
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//! Valid only for point and rectangular selection.
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//! Returns projection of 2d mouse picked point or projection
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//! of center of 2d rectangle (for point and rectangular selection
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//! correspondingly) onto near view frustum plane
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virtual gp_Pnt GetNearPickedPnt() const = 0;
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//! Valid only for point and rectangular selection.
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//! Returns projection of 2d mouse picked point or projection
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//! of center of 2d rectangle (for point and rectangular selection
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//! correspondingly) onto far view frustum plane
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virtual gp_Pnt GetFarPickedPnt() const = 0;
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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<NCollection_Vec4<Standard_Real> >& thePlaneEquations) const = 0;
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protected:
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SelectionType myActiveSelectionType; //!< Active selection type: point, box or polyline
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};
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#endif // _SelectBasics_SelectingVolumeManager_HeaderFile
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