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https://git.salome-platform.org/gitpub/modules/smesh.git
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202 lines
7.2 KiB
C++
202 lines
7.2 KiB
C++
// Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
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//
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// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
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// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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//
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// SMESH SMESH : implementation of SMESH idl descriptions
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// File : StdMeshers_NumberOfSegments.hxx
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// Moved here from SMESH_NumberOfSegments.hxx
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// Author : Paul RASCLE, EDF
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// Module : SMESH
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//
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#ifndef _SMESH_NUMBEROFSEGMENTS_HXX_
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#define _SMESH_NUMBEROFSEGMENTS_HXX_
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#include "StdMeshers_Reversible1D.hxx"
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#include "SMESH_Hypothesis.hxx"
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#include "Utils_SALOME_Exception.hxx"
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#include <vector>
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/*!
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* \brief This class represents hypothesis for 1d algorithm
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*
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* It provides parameters for subdivision an edge by various
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* distribution types, considering the given number of resulting segments
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*/
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class STDMESHERS_EXPORT StdMeshers_NumberOfSegments: public StdMeshers_Reversible1D
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{
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public:
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StdMeshers_NumberOfSegments(int hypId, SMESH_Gen* gen);
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virtual ~StdMeshers_NumberOfSegments();
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// Builds point distribution according to passed function
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const std::vector<double>& BuildDistributionExpr( const char*, int, int ) throw ( SALOME_Exception );
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const std::vector<double>& BuildDistributionTab( const std::vector<double>&, int, int ) throw ( SALOME_Exception );
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/*!
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* \brief Set the number of segments
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* \param segmentsNumber - must be greater than zero
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*/
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void SetNumberOfSegments(int segmentsNumber)
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throw (SALOME_Exception);
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/*!
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* \brief Get the number of segments
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*/
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int GetNumberOfSegments() const;
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/*!
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* \brief This enumeration presents available types of distribution
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*/
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enum DistrType
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{
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DT_Regular, //!< equidistant distribution
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DT_Scale, //!< scale distribution
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DT_TabFunc, //!< distribution with density function presented by table
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DT_ExprFunc //!< distribution with density function presented by expression
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};
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/*!
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* \brief Set distribution type
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*/
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void SetDistrType(DistrType typ)
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throw (SALOME_Exception);
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/*!
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* \brief Get distribution type
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*/
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DistrType GetDistrType() const;
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/*!
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* \brief Set scale factor for scale distribution
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* \param scaleFactor - positive value different from 1
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*
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* Throws SALOME_Exception if distribution type is not DT_Scale,
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* or scaleFactor is not a positive value different from 1
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*/
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virtual void SetScaleFactor(double scaleFactor)
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throw (SALOME_Exception);
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/*!
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* \brief Get scale factor for scale distribution
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*
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* Throws SALOME_Exception if distribution type is not DT_Scale
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*/
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double GetScaleFactor() const
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throw (SALOME_Exception);
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/*!
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* \brief Set table function for distribution DT_TabFunc
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* \param table - this vector contains the pairs (parameter, value)
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* following each by other, so the number of elements in the vector
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* must be even. The parameters must be in range [0,1] and sorted in
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* increase order. The values of function must be positive.
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*
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* Throws SALOME_Exception if distribution type is not DT_TabFunc
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*/
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void SetTableFunction(const std::vector<double>& table)
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throw (SALOME_Exception);
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/*!
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* \brief Get table function for distribution DT_TabFunc
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*
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* Throws SALOME_Exception if distribution type is not DT_TabFunc
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*/
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const std::vector<double>& GetTableFunction() const
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throw (SALOME_Exception);
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/*!
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* \brief Set expression function for distribution DT_ExprFunc
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* \param expr - string containing the expression of the function
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* f(t), e.g. "sin(t)"
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*
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* Throws SALOME_Exception if distribution type is not DT_ExprFunc
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*/
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void SetExpressionFunction( const char* expr)
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throw (SALOME_Exception);
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/*!
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* \brief Get expression function for distribution DT_ExprFunc
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*
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* Throws SALOME_Exception if distribution type is not DT_ExprFunc
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*/
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const char* GetExpressionFunction() const
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throw (SALOME_Exception);
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/*!
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* \brief Checks validity of the expression of the function f(t), e.g. "sin(t)".
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* In case of validity returns a cleaned expression
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* \param convMode - 0 for "Exponent mode", 1 for "Cut negative mode"
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*/
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static std::string CheckExpressionFunction( const std::string& expr,
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const int convMode)
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throw (SALOME_Exception);
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/*!
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* \brief Set conversion mode. When it is 0, it means "exponent mode":
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* the function of distribution of density is used as an exponent of 10, i,e, 10^f(t).
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* When it is 1, it means "cut negative mode". The function of distribution is used as
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* F(t), where F(t0)=f(t0), if f(t0)>=0, otherwise F(t0) = 0.
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* This mode is sensible only when function distribution is used (DT_TabFunc or DT_ExprFunc)
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*
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* Throws SALOME_Exception if distribution type is not functional
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*/
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void SetConversionMode( int conv )
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throw (SALOME_Exception);
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/*!
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* \brief Returns conversion mode
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*
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* Throws SALOME_Exception if distribution type is not functional
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*/
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int ConversionMode() const
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throw (SALOME_Exception);
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/*!
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* \brief Initialize number of segments by the mesh built on the geometry
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* \param theMesh - the built mesh
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* \param theShape - the geometry of interest
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* \retval bool - true if parameter values have been successfully defined
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*/
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virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
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/*!
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* \brief Initialize my parameter values by default parameters.
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* \retval bool - true if parameter values have been successfully defined
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*/
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virtual bool SetParametersByDefaults(const TDefaults& dflts, const SMESH_Mesh* theMesh=0);
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virtual std::ostream & SaveTo(std::ostream & save);
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virtual std::istream & LoadFrom(std::istream & load);
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friend std::ostream& operator << (std::ostream & save, StdMeshers_NumberOfSegments & hyp);
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friend std::istream& operator >> (std::istream & load, StdMeshers_NumberOfSegments & hyp);
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protected:
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int _numberOfSegments; //!< an edge will be split on to this number of segments
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DistrType _distrType; //!< the type of distribution of density function
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double _scaleFactor; //!< the scale parameter for DT_Scale
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std::vector<double> _table, _distr; //!< the table for DT_TabFunc, a sequence of pairs of numbers
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std::string _func; //!< the expression of the function for DT_ExprFunc
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int _convMode; //!< flag of conversion mode: 0=exponent, 1=cut negative
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};
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#endif
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