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vtkStringToCategory.h
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vtkStringToCategory.h
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkStringToCategory.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*-------------------------------------------------------------------------
Copyright 2008 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
/**
* @class vtkStringToCategory
* @brief Creates a category array from a string array
*
*
* vtkStringToCategory creates an integer array named "category" based on the
* values in a string array. You may use this filter to create an array that
* you may use to color points/cells by the values in a string array. Currently
* there is not support to color by a string array directly.
* The category values will range from zero to N-1,
* where N is the number of distinct strings in the string array. Set the string
* array to process with SetInputArrayToProcess(0,0,0,...). The array may be in
* the point, cell, or field data of the data object.
*
* The list of unique strings, in the order they are mapped, can also be
* retrieved from output port 1. They are in a vtkTable, stored in the "Strings"
* column as a vtkStringArray.
*/
#ifndef vtkStringToCategory_h
#define vtkStringToCategory_h
#include "vtkInfovisCoreModule.h" // For export macro
#include "vtkDataObjectAlgorithm.h"
class VTKINFOVISCORE_EXPORT vtkStringToCategory : public vtkDataObjectAlgorithm
{
public:
static vtkStringToCategory* New();
vtkTypeMacro(vtkStringToCategory,vtkDataObjectAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
//@{
/**
* The name to give to the output vtkIntArray of category values.
*/
vtkSetStringMacro(CategoryArrayName);
vtkGetStringMacro(CategoryArrayName);
//@}
/**
* This is required to capture REQUEST_DATA_OBJECT requests.
*/
int ProcessRequest(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector) VTK_OVERRIDE;
protected:
vtkStringToCategory();
~vtkStringToCategory() VTK_OVERRIDE;
/**
* Creates the same output type as the input type.
*/
int RequestDataObject(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector) VTK_OVERRIDE;
int RequestData(
vtkInformation*,
vtkInformationVector**,
vtkInformationVector*) VTK_OVERRIDE;
int FillOutputPortInformation(int port, vtkInformation* info) VTK_OVERRIDE;
char *CategoryArrayName;
private:
vtkStringToCategory(const vtkStringToCategory&) VTK_DELETE_FUNCTION;
void operator=(const vtkStringToCategory&) VTK_DELETE_FUNCTION;
};
#endif