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88 lines
3.1 KiB
C++
88 lines
3.1 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkStringToCategory.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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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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/**
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* @class vtkStringToCategory
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* @brief Creates a category array from a string array
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*
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*
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* vtkStringToCategory creates an integer array named "category" based on the
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* values in a string array. You may use this filter to create an array that
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* you may use to color points/cells by the values in a string array. Currently
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* there is not support to color by a string array directly.
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* The category values will range from zero to N-1,
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* where N is the number of distinct strings in the string array. Set the string
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* array to process with SetInputArrayToProcess(0,0,0,...). The array may be in
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* the point, cell, or field data of the data object.
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*
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* The list of unique strings, in the order they are mapped, can also be
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* retrieved from output port 1. They are in a vtkTable, stored in the "Strings"
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* column as a vtkStringArray.
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*/
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#ifndef vtkStringToCategory_h
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#define vtkStringToCategory_h
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#include "vtkDataObjectAlgorithm.h"
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#include "vtkInfovisCoreModule.h" // For export macro
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class VTKINFOVISCORE_EXPORT vtkStringToCategory : public vtkDataObjectAlgorithm
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{
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public:
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static vtkStringToCategory* New();
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vtkTypeMacro(vtkStringToCategory, vtkDataObjectAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@{
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/**
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* The name to give to the output vtkIntArray of category values.
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*/
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vtkSetStringMacro(CategoryArrayName);
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vtkGetStringMacro(CategoryArrayName);
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//@}
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/**
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* This is required to capture REQUEST_DATA_OBJECT requests.
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*/
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vtkTypeBool ProcessRequest(vtkInformation* request, vtkInformationVector** inputVector,
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vtkInformationVector* outputVector) override;
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protected:
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vtkStringToCategory();
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~vtkStringToCategory() override;
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/**
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* Creates the same output type as the input type.
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*/
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int RequestDataObject(vtkInformation* request, vtkInformationVector** inputVector,
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vtkInformationVector* outputVector) override;
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int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
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int FillOutputPortInformation(int port, vtkInformation* info) override;
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char* CategoryArrayName;
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private:
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vtkStringToCategory(const vtkStringToCategory&) = delete;
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void operator=(const vtkStringToCategory&) = delete;
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};
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#endif
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