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OCCT/src/Select3D/Select3D_SensitiveSphere.hxx

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// Created on: 2021-03-04
// Created by: Maria KRYLOVA
// Copyright (c) 2021 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 _Select3D_SensitiveSphere_HeaderFile
#define _Select3D_SensitiveSphere_HeaderFile
#include <Select3D_SensitiveEntity.hxx>
//! A framework to define selection by a sensitive sphere.
class Select3D_SensitiveSphere : public Select3D_SensitiveEntity
{
DEFINE_STANDARD_RTTIEXT(Select3D_SensitiveSphere, Select3D_SensitiveEntity)
public:
//! Constructs a sensitive sphere object defined by the owner theOwnerId,
//! the center of the sphere and it's radius.
Standard_EXPORT Select3D_SensitiveSphere (const Handle(SelectMgr_EntityOwner)& theOwnerId,
const gp_Pnt& theCenter,
const Standard_Real theRadius);
//! Returns the radius of the sphere
Standard_Real Radius() const { return myRadius; }
public:
//! Checks whether the sphere overlaps current selecting volume
Standard_EXPORT virtual Standard_Boolean Matches (SelectBasics_SelectingVolumeManager& theMgr,
SelectBasics_PickResult& thePickResult) Standard_OVERRIDE;
//! Returns the copy of this
Standard_EXPORT virtual Handle(Select3D_SensitiveEntity) GetConnected() Standard_OVERRIDE;
//! Returns bounding box of the sphere.
//! If location transformation is set, it will be applied
Standard_EXPORT virtual Select3D_BndBox3d BoundingBox() Standard_OVERRIDE;
//! Always returns Standard_False
virtual Standard_Boolean ToBuildBVH() const Standard_OVERRIDE { return Standard_False; }
//! Returns the amount of points
virtual Standard_Integer NbSubElements() const Standard_OVERRIDE { return 1; }
//! Returns center of the sphere with transformation applied
virtual gp_Pnt CenterOfGeometry() const Standard_OVERRIDE { return myCenter; };
//! Returns the position of detected point on the sphere.
const gp_Pnt& LastDetectedPoint() const { return myLastDetectedPoint; }
//! Invalidate the position of detected point on the sphere.
void ResetLastDetectedPoint()
{
myLastDetectedPoint = gp_Pnt (RealLast(), RealLast(), RealLast());
}
protected:
gp_Pnt myCenter;
gp_Pnt myLastDetectedPoint;
Standard_Real myRadius;
};
#endif // _Select3D_SensitiveSphere_HeaderFile