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aa75c0cf9d
SelectMgr_SortCriterion now stores detected SensitiveEntity and 3D point. SelectMgr_ToleranceMap class definition has been moved out to dedicated file (from SelectMgr_ViewerSelector). SelectMgr_ViewerSelector - the methods implementing class-as-iterator Init(), More(), Next(), Picked() and InitDetected(), MoreDetected(), NextDetected(), DetectedEntity() have been deprecated. User should access detection results by using index. New methods PickedData(), PickedEntity(), PickedPoint() have been added for accessing auxiliary information about picked object in sorted order.
71 lines
2.8 KiB
C++
71 lines
2.8 KiB
C++
// Copyright (c) 2016 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 _SelectMgr_ToleranceMap_HeaderFile
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#define _SelectMgr_ToleranceMap_HeaderFile
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#include <NCollection_DataMap.hxx>
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#include <Precision.hxx>
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//! An internal class for calculation of current largest tolerance value which will be applied for creation of selecting frustum by default.
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//! Each time the selection set is deactivated, maximum tolerance value will be recalculated.
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//! If a user enables custom precision using StdSelect_ViewerSelector3d::SetPixelTolerance, it will be applied to all sensitive entities without any checks.
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class SelectMgr_ToleranceMap
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{
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public:
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//! Sets tolerance values to -1.0
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Standard_EXPORT SelectMgr_ToleranceMap();
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Standard_EXPORT ~SelectMgr_ToleranceMap();
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//! Adds the value given to map, checks if the current tolerance value
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//! should be replaced by theTolerance
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Standard_EXPORT void Add (const Standard_Integer& theTolerance);
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//! Decrements a counter of the tolerance given, checks if the current tolerance value
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//! should be recalculated
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Standard_EXPORT void Decrement (const Standard_Integer& theTolerance);
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//! Returns a current tolerance that must be applied
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Standard_Integer Tolerance() const
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{
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if (myLargestKey < Precision::Confusion())
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{
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return 2; // default tolerance value
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}
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return myCustomTolerance < 0
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? myLargestKey
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: myLargestKey + myCustomTolerance;
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}
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//! Sets tolerance to the given one and disables adaptive checks
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void SetCustomTolerance (const Standard_Integer theTolerance) { myCustomTolerance = theTolerance; }
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//! Unsets a custom tolerance and enables adaptive checks
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void ResetDefaults() { myCustomTolerance = -1; }
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//! Returns the value of custom tolerance regardless of it validity
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Standard_Integer CustomTolerance() const { return myCustomTolerance; }
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//! Returns true if custom tolerance value is greater than zero
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Standard_Boolean IsCustomTolSet() const { return myCustomTolerance > 0; }
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private:
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NCollection_DataMap<Standard_Integer, Standard_Integer> myTolerances;
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Standard_Integer myLargestKey;
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Standard_Integer myCustomTolerance;
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};
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#endif // _SelectMgr_ToleranceMap_HeaderFile
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