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https://git.dev.opencascade.org/repos/occt.git
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1103eb60af
NCollection containers update:
- NCollection_Array1 - updated functionality
- NCollection_Array2 - NCollection_Array1 as a wrapper for 2array
- NCollection_Vector -> NCollection_DynamicArray was renamed and reworked.
TCollection:
- Use static empty string to avoid allocations on empty string
NCollection allocators update:
- NCollection_Allocator - allocator that used Standard::Allocate
- NCollection_OccAllocator - allocator-wrapper that used OCC BaseAllocator objects
- NCollection_IncAllocator - rework to increase performance
Standard:
- Rework functionality to use different allocation libs
- Implement basic of new way to wrap allocations tools
- Define 4 ways to allocation (defines in configure stage)
Additional changes:
- Hash function uses std::hash functionality
- size_t as a hash value
- New HashUtils with Murmur and FVN hash algo for x32 and x64
- Deprecated _0.cxx and .gxx DE classes reorganized
- Create own utility for std memory
- Update Standard_Transient to be more platform-independent
Math TK changes:
- math_Vector -> match_BaseVector<>
- Buffer decreased to cash 32 elements instead of 512
123 lines
4.0 KiB
C++
123 lines
4.0 KiB
C++
// Created on: 1996-10-14
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// Created by: Jeannine PANTIATICI
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// Copyright (c) 1996-1999 Matra Datavision
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// Copyright (c) 1999-2014 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 _AdvApprox_SimpleApprox_HeaderFile
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#define _AdvApprox_SimpleApprox_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <Standard_Integer.hxx>
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#include <TColStd_HArray1OfReal.hxx>
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#include <TColStd_HArray2OfReal.hxx>
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#include <GeomAbs_Shape.hxx>
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#include <AdvApprox_EvaluatorFunction.hxx>
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#include <TColStd_Array1OfInteger.hxx>
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#include <TColStd_Array1OfReal.hxx>
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#include <Standard_OStream.hxx>
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class PLib_JacobiPolynomial;
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//! Approximate a function on an intervall [First,Last]
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//! The result is a simple polynomial whose degree is as low as
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//! possible to satisfy the required tolerance and the
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//! maximum degree. The maximum error and the averrage error
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//! resulting from approximating the function by the polynomial are computed
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class AdvApprox_SimpleApprox
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{
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public:
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DEFINE_STANDARD_ALLOC
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Standard_EXPORT AdvApprox_SimpleApprox(const Standard_Integer TotalDimension, const Standard_Integer TotalNumSS, const GeomAbs_Shape Continuity, const Standard_Integer WorkDegree, const Standard_Integer NbGaussPoints, const Handle(PLib_JacobiPolynomial)& JacobiBase, const AdvApprox_EvaluatorFunction& Func);
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//! Constructs approximator tool.
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//!
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//! Warning:
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//! the Func should be valid reference to object of type
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//! inherited from class EvaluatorFunction from Approx
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//! with life time longer than that of the approximator tool;
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Standard_EXPORT void Perform (const TColStd_Array1OfInteger& LocalDimension, const TColStd_Array1OfReal& LocalTolerancesArray, const Standard_Real First, const Standard_Real Last, const Standard_Integer MaxDegree);
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Standard_EXPORT Standard_Boolean IsDone() const;
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Standard_EXPORT Standard_Integer Degree() const;
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//! returns the coefficients in the Jacobi Base
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Standard_EXPORT Handle(TColStd_HArray1OfReal) Coefficients() const;
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//! returns the constraints at First
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Standard_EXPORT Handle(TColStd_HArray2OfReal) FirstConstr() const;
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//! returns the constraints at Last
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Standard_EXPORT Handle(TColStd_HArray2OfReal) LastConstr() const;
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Standard_EXPORT Handle(TColStd_HArray1OfReal) SomTab() const;
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Standard_EXPORT Handle(TColStd_HArray1OfReal) DifTab() const;
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Standard_EXPORT Standard_Real MaxError (const Standard_Integer Index) const;
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Standard_EXPORT Standard_Real AverageError (const Standard_Integer Index) const;
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//! display information on approximation
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Standard_EXPORT void Dump (Standard_OStream& o) const;
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protected:
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private:
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Standard_Integer myTotalNumSS;
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Standard_Integer myTotalDimension;
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Standard_Integer myNbGaussPoints;
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Standard_Integer myWorkDegree;
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Standard_Integer myNivConstr;
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Handle(PLib_JacobiPolynomial) myJacPol;
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Handle(TColStd_HArray1OfReal) myTabPoints;
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Handle(TColStd_HArray2OfReal) myTabWeights;
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Standard_Address myEvaluator;
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Standard_Integer myDegree;
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Handle(TColStd_HArray1OfReal) myCoeff;
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Handle(TColStd_HArray2OfReal) myFirstConstr;
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Handle(TColStd_HArray2OfReal) myLastConstr;
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Handle(TColStd_HArray1OfReal) mySomTab;
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Handle(TColStd_HArray1OfReal) myDifTab;
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Handle(TColStd_HArray1OfReal) myMaxError;
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Handle(TColStd_HArray1OfReal) myAverageError;
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Standard_Boolean done;
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};
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#endif // _AdvApprox_SimpleApprox_HeaderFile
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