82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkFunctionSet.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkFunctionSet
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* @brief Abstract interface for sets of functions
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*
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* vtkFunctionSet specifies an abstract interface for set of functions
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* of the form F_i = F_i(x_j) where F (with i=1..m) are the functions
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* and x (with j=1..n) are the independent variables.
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* The only supported operation is the function evaluation at x_j.
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*
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* @sa
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* vtkImplicitDataSet vtkCompositeInterpolatedVelocityField vtkAMRInterpolatedVelocityField
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* vtkInitialValueProblemSolver
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*/
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#ifndef vtkFunctionSet_h
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#define vtkFunctionSet_h
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#include "vtkCommonMathModule.h" // For export macro
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#include "vtkObject.h"
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class VTKCOMMONMATH_EXPORT vtkFunctionSet : public vtkObject
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{
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public:
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vtkTypeMacro(vtkFunctionSet, vtkObject);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Evaluate functions at x_j.
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* x and f have to point to valid double arrays of appropriate
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* sizes obtained with GetNumberOfFunctions() and
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* GetNumberOfIndependentVariables.
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* If you inherit this class, make sure to reimplement at least one of the two
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* FunctionValues signatures.
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*/
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virtual int FunctionValues(double* x, double* f) { return this->FunctionValues(x, f, nullptr); }
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virtual int FunctionValues(double* x, double* f, void* vtkNotUsed(userData))
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{
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return this->FunctionValues(x, f);
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}
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/**
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* Return the number of functions. Note that this is constant for
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* a given type of set of functions and can not be changed at
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* run time.
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*/
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virtual int GetNumberOfFunctions() { return this->NumFuncs; }
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/**
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* Return the number of independent variables. Note that this is
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* constant for a given type of set of functions and can not be changed
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* at run time.
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*/
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virtual int GetNumberOfIndependentVariables() { return this->NumIndepVars; }
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protected:
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vtkFunctionSet();
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~vtkFunctionSet() override = default;
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int NumFuncs;
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int NumIndepVars;
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private:
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vtkFunctionSet(const vtkFunctionSet&) = delete;
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void operator=(const vtkFunctionSet&) = delete;
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};
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#endif
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