// Created on: 2014-08-21
// Created by: Varvara POSKONINA
// Copyright (c) 2005-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef _SelectBasics_SelectingVolumeManager_HeaderFile
#define _SelectBasics_SelectingVolumeManager_HeaderFile
#include
#include
#include
#include
class Bnd_Box;
class gp_Pnt;
//! This class provides an interface for selecting volume manager,
//! which is responsible for all overlap detection methods and
//! calculation of minimum depth, distance to center of geometry
//! and detected closest point on entity.
class SelectBasics_SelectingVolumeManager
{
public:
//! Available selection types
enum SelectionType { Point, Box, Polyline, Unknown };
public:
SelectBasics_SelectingVolumeManager() {};
virtual ~SelectBasics_SelectingVolumeManager() {};
virtual Standard_Integer GetActiveSelectionType() const = 0;
//! Returns true if selecting volume is overlapped by box theBox
virtual Standard_Boolean Overlaps (const NCollection_Vec3& theBoxMin,
const NCollection_Vec3& theBoxMax,
SelectBasics_PickResult& thePickResult) = 0;
//! Returns true if selecting volume is overlapped by axis-aligned bounding box with minimum
//! corner at point theMinPt and maximum at point theMaxPt
virtual Standard_Boolean Overlaps (const NCollection_Vec3& theBoxMin,
const NCollection_Vec3& theBoxMax,
Standard_Boolean* theInside = NULL) = 0;
//! Returns true if selecting volume is overlapped by point thePnt
virtual Standard_Boolean Overlaps (const gp_Pnt& thePnt,
SelectBasics_PickResult& thePickResult) = 0;
//! Returns true if selecting volume is overlapped by point thePnt.
//! Does not perform depth calculation, so this method is defined as
//! helper function for inclusion test.
virtual Standard_Boolean Overlaps (const gp_Pnt& thePnt) = 0;
//! Returns true if selecting volume is overlapped by planar convex polygon, which points
//! are stored in theArrayOfPts, taking into account sensitivity type theSensType
virtual Standard_Boolean Overlaps (const Handle(TColgp_HArray1OfPnt)& theArrayOfPts,
Standard_Integer theSensType,
SelectBasics_PickResult& thePickResult) = 0;
//! Returns true if selecting volume is overlapped by planar convex polygon, which points
//! are stored in theArrayOfPts, taking into account sensitivity type theSensType
virtual Standard_Boolean Overlaps (const TColgp_Array1OfPnt& theArrayOfPts,
Standard_Integer theSensType,
SelectBasics_PickResult& thePickResult) = 0;
//! Returns true if selecting volume is overlapped by line segment with start point at thePt1
//! and end point at thePt2
virtual Standard_Boolean Overlaps (const gp_Pnt& thePt1,
const gp_Pnt& thePt2,
SelectBasics_PickResult& thePickResult) = 0;
//! Returns true if selecting volume is overlapped by triangle with vertices thePt1,
//! thePt2 and thePt3, taking into account sensitivity type theSensType
virtual Standard_Boolean Overlaps (const gp_Pnt& thePt1,
const gp_Pnt& thePt2,
const gp_Pnt& thePt3,
Standard_Integer theSensType,
SelectBasics_PickResult& thePickResult) = 0;
//! Calculates distance from 3d projection of user-defined selection point
//! to the given point theCOG
virtual Standard_Real DistToGeometryCenter (const gp_Pnt& theCOG) = 0;
virtual gp_Pnt DetectedPoint (const Standard_Real theDepth) const = 0;
virtual Standard_Boolean IsOverlapAllowed() const = 0;
//! Valid only for point and rectangular selection.
//! Returns projection of 2d mouse picked point or projection
//! of center of 2d rectangle (for point and rectangular selection
//! correspondingly) onto near view frustum plane
virtual gp_Pnt GetNearPickedPnt() const = 0;
//! Valid only for point and rectangular selection.
//! Returns projection of 2d mouse picked point or projection
//! of center of 2d rectangle (for point and rectangular selection
//! correspondingly) onto far view frustum plane
virtual gp_Pnt GetFarPickedPnt() const = 0;
//! Stores plane equation coefficients (in the following form:
//! Ax + By + Cz + D = 0) to the given vector
virtual void GetPlanes (NCollection_Vector >& thePlaneEquations) const = 0;
protected:
SelectionType myActiveSelectionType; //!< Active selection type: point, box or polyline
};
#endif // _SelectBasics_SelectingVolumeManager_HeaderFile