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occt/src/IVtkOCC/IVtkOCC_ViewerSelector.hxx
vpa f751596e46 0024623: Visualization - improve selection mechanism
Redesign of selection mechanism:
- implemented 3-level BVH tree for selection;
- selection now calculates in 3D space;
- intersection tests were moved to SelectMgr_BaseFrustum descendants;
- removed .cdl files in Select3D and .cdl related to selection in MeshVS;
- SelectMgr_ViewerSelectors are now shared between local and global contexts;
- transformations of sensitive entities are now stored in SelectMgr_SelectableObject only. Sensitive entities are independent from transformations, it is applied to SelectMgr_SelectingVolumeManager instance only;
- connected and multiple connected interactive objects are now represented by their child objects only for SelectMgr_SelectionManager;
- if interactive object has child objects, they will be stored as separate objects in SelectMgr_SelectionManager now.
- test cases bugs/vis/bug24623_1, bug24623_2, bug24623_3, bug24623_4 to test performance and memory issues.
2015-04-06 17:27:38 +03:00

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C++

// Created on: 2011-10-20
// Created by: Roman KOZLOV
// Copyright (c) 2011-2014 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 __IVTKOCC_VIEWERSELECTOR_H__
#define __IVTKOCC_VIEWERSELECTOR_H__
#include <IVtk_IView.hxx>
#include <SelectMgr_Selection.hxx>
#include <SelectMgr_ViewerSelector.hxx>
// -----------------------------------------------------------------------------
//! @class IVtkOCC_ViewerSelector
//! @brief Class that implements OCCT selection algorithm.
//!
//! Inspired by StdSelect_ViewerSelector3d class from OCCT 6.5.1
class IVtkOCC_ViewerSelector : public SelectMgr_ViewerSelector
{
public:
IVtkOCC_ViewerSelector();
//! Implements point picking
//! @param [in] theXPix, theYPix Display coordinates of the point
//! @param [in] theView ICamera interface to update the projection parameters.
void Pick (const Standard_Integer theXPix,
const Standard_Integer theYPix,
const IVtk_IView::Handle& theView);
//! Picking by rectangle
//! @param [in] theXMin, theYMin, theXMax, theYMax Rectangle coords
//! @param [in] theView ICamera interface to calculate projections
void Pick (const Standard_Integer theXMin,
const Standard_Integer theYMin,
const Standard_Integer theXMax,
const Standard_Integer theYMax,
const IVtk_IView::Handle& theView);
//! Implements point picking
void Pick (double** thePoly, const int theNbPoints, const IVtk_IView::Handle& theView);
//! Activates the given selection
void Activate (const Handle(SelectMgr_Selection)& theSelection);
//! Deactivate the given selection
void Deactivate (const Handle(SelectMgr_Selection)& theSelection);
DEFINE_STANDARD_RTTI( IVtkOCC_ViewerSelector )
private:
Standard_Integer myPixTol;
Standard_Boolean myToUpdateTol;
};
DEFINE_STANDARD_HANDLE( IVtkOCC_ViewerSelector, SelectMgr_ViewerSelector )
#endif // __IVTKOCC_VIEWERSELECTOR_H__