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104 lines
2.9 KiB
C
104 lines
2.9 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkArrayNorm.h
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-------------------------------------------------------------------------
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Copyright 2008 Sandia Corporation.
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Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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the U.S. Government retains certain rights in this software.
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-------------------------------------------------------------------------
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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 vtkArrayNorm
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* @brief Computes L-norms along one dimension of an array.
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*
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*
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* Given an input matrix (vtkTypedArray<double>), computes the L-norm for each
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* vector along either dimension, storing the results in a dense output
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* vector (1D vtkDenseArray<double>). The caller may optionally request the
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* inverse norm as output (useful for subsequent normalization), and may limit
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* the computation to a "window" of vector elements, to avoid data copying.
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*
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* @par Thanks:
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* Developed by Timothy M. Shead (tshead@sandia.gov) at Sandia National Laboratories.
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*/
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#ifndef vtkArrayNorm_h
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#define vtkArrayNorm_h
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#include "vtkArrayDataAlgorithm.h"
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#include "vtkArrayRange.h"
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#include "vtkInfovisCoreModule.h" // For export macro
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class VTKINFOVISCORE_EXPORT vtkArrayNorm : public vtkArrayDataAlgorithm
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{
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public:
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static vtkArrayNorm* New();
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vtkTypeMacro(vtkArrayNorm, vtkArrayDataAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@{
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/**
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* Controls the dimension along which norms will be computed. For input matrices,
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* For input matrices, use "0" (rows) or "1" (columns). Default: 0
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*/
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vtkGetMacro(Dimension, int);
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vtkSetMacro(Dimension, int);
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//@}
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//@{
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/**
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* Controls the L-value. Default: 2
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*/
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vtkGetMacro(L, int);
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void SetL(int value);
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//@}
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//@{
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/**
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* Controls whether to invert output values. Default: false
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*/
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vtkSetMacro(Invert, int);
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vtkGetMacro(Invert, int);
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//@}
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//@{
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/**
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* Defines an optional "window" used to compute the norm on a subset of the elements
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* in a vector.
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*/
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void SetWindow(const vtkArrayRange& window);
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vtkArrayRange GetWindow();
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//@}
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protected:
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vtkArrayNorm();
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~vtkArrayNorm() override;
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int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
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private:
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vtkArrayNorm(const vtkArrayNorm&) = delete;
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void operator=(const vtkArrayNorm&) = delete;
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int Dimension;
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int L;
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int Invert;
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vtkArrayRange Window;
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};
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#endif
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// VTK-HeaderTest-Exclude: vtkArrayNorm.h
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