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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.
-------------------------------------------------------------------------*/
// .NAME vtkStringToCategory - Creates a category array from a string array
//
// .SECTION Description
// 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);
// Description:
// The name to give to the output vtkIntArray of category values.
vtkSetStringMacro(CategoryArrayName);
vtkGetStringMacro(CategoryArrayName);
// Description:
// This is required to capture REQUEST_DATA_OBJECT requests.
virtual int ProcessRequest(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector);
protected:
vtkStringToCategory();
~vtkStringToCategory();
// Description:
// Creates the same output type as the input type.
virtual int RequestDataObject(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector);
int RequestData(
vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
virtual int FillOutputPortInformation(int port, vtkInformation* info);
char *CategoryArrayName;
private:
vtkStringToCategory(const vtkStringToCategory&); // Not implemented
void operator=(const vtkStringToCategory&); // Not implemented
};
#endif
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