liboce-visualization-dev 0.18.2-2build1 / usr / include / oce / Select3D_SensitivePoly.hxx

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// Copyright (c) 1999-2014 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 _Select3D_SensitivePoly_HeaderFile
#define _Select3D_SensitivePoly_HeaderFile

#include <NCollection_Handle.hxx>

#include <Standard.hxx>
#include <Standard_DefineHandle.hxx>
#include <Standard_Type.hxx>

#include <TColStd_HArray1OfInteger.hxx>
#include <Handle_TColgp_HArray1OfPnt.hxx>
#include <Handle_TColStd_HArray1OfInteger.hxx>

#include <Select3D_PointData.hxx>
#include <Select3D_Pnt.hxx>
#include <Select3D_SensitiveSet.hxx>
#include <Select3D_TypeOfSensitivity.hxx>

#include <Handle_SelectBasics_EntityOwner.hxx>

class Standard_ConstructionError;
class Standard_OutOfRange;
class SelectBasics_EntityOwner;
class TColgp_Array1OfPnt;
class TColgp_HArray1OfPnt;

//! Sensitive Entity to make a face selectable.
//! In some cases this class can raise Standard_ConstructionError and
//! Standard_OutOfRange exceptions from its member Select3D_PointData
//! myPolyg.
class Select3D_SensitivePoly : public Select3D_SensitiveSet
{
public:

  //! Constructs a sensitive face object defined by the
  //! owner OwnerId, the array of points ThePoints, and
  //! the sensitivity type Sensitivity.
  //! The array of points is the outer polygon of the geometric face.
  Standard_EXPORT Select3D_SensitivePoly (const Handle(SelectBasics_EntityOwner)& theOwnerId,
                                          const TColgp_Array1OfPnt& thePoints,
                                          const Standard_Boolean theIsBVHEnabled);

  //! Constructs a sensitive face object defined by the
  //! owner OwnerId, the array of points ThePoints, and
  //! the sensitivity type Sensitivity.
  //! The array of points is the outer polygon of the geometric face.
  Standard_EXPORT Select3D_SensitivePoly (const Handle(SelectBasics_EntityOwner)& theOwnerId,
                                          const Handle(TColgp_HArray1OfPnt)& thePoints,
                                          const Standard_Boolean theIsBVHEnabled);

  //! Constructs the sensitive circle object defined by the
  //! owner OwnerId, the circle Circle, the Boolean
  //! FilledCircle and the number of points NbOfPoints.
  Standard_EXPORT Select3D_SensitivePoly (const Handle(SelectBasics_EntityOwner)& theOwnerId,
                                          const Standard_Boolean theIsBVHEnabled,
                                          const Standard_Integer theNbPnts = 6);

  //! Returns the amount of segments in poly
  Standard_EXPORT virtual Standard_Integer NbSubElements() Standard_OVERRIDE;

  //! Returns the 3D points of the array used at construction time.
  Standard_EXPORT void Points3D (Handle(TColgp_HArray1OfPnt)& theHArrayOfPnt);

  //! Returns bounding box of a polygon. If location
  //! transformation is set, it will be applied
  Standard_EXPORT virtual Select3D_BndBox3d BoundingBox() Standard_OVERRIDE;

  //! Returns center of the point set. If location transformation
  //! is set, it will be applied
  Standard_EXPORT virtual gp_Pnt CenterOfGeometry() const Standard_OVERRIDE;

  //! Returns the amount of segments of the poly
  Standard_EXPORT virtual Standard_Integer Size() const Standard_OVERRIDE;

  //! Returns bounding box of segment with index theIdx
  Standard_EXPORT virtual Select3D_BndBox3d Box (const Standard_Integer theIdx) const Standard_OVERRIDE;

  //! Returns geometry center of sensitive entity index theIdx in the vector along
  //! the given axis theAxis
  Standard_EXPORT virtual Standard_Real Center (const Standard_Integer theIdx,
                                                const Standard_Integer theAxis) const Standard_OVERRIDE;

  //! Swaps items with indexes theIdx1 and theIdx2 in the vector
  Standard_EXPORT virtual void Swap (const Standard_Integer theIdx1,
                                     const Standard_Integer theIdx2) Standard_OVERRIDE;

  DEFINE_STANDARD_RTTI (Select3D_SensitivePoly)

private:

  //! Checks whether the segment with index theIdx overlaps the current selecting volume
  virtual Standard_Boolean overlapsElement (SelectBasics_SelectingVolumeManager& theMgr,
                                            Standard_Integer theElemIdx,
                                            Standard_Real& theMatchDepth) Standard_OVERRIDE;

  //! Checks whether the entity with index theIdx is inside the current selecting volume
  virtual Standard_Boolean elementIsInside (SelectBasics_SelectingVolumeManager& theMgr,
                                            const Standard_Integer               theElemIdx) Standard_OVERRIDE;

  //! Calculates distance from the 3d projection of used-picked screen point
  //! to center of the geometry
  virtual Standard_Real distanceToCOG (SelectBasics_SelectingVolumeManager& theMgr) Standard_OVERRIDE;

protected:

  Select3D_PointData              myPolyg;              //!< Points of the poly
  mutable gp_Pnt                  myCOG;                //!< Center of the poly
  Handle_TColStd_HArray1OfInteger mySegmentIndexes;     //!< Segment indexes for BVH tree build
  Select3D_BndBox3d               myBndBox;             //!< Bounding box of the poly
  mutable Standard_Boolean        myIsComputed;         //!< Is true if all the points and data structures of polygon are initialized
};

DEFINE_STANDARD_HANDLE(Select3D_SensitivePoly, Select3D_SensitiveSet)

#include <Select3D_SensitivePoly.lxx>

#endif // _Select3D_SensitivePoly_HeaderFile

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