/usr/include/deal.II/numerics/data_component_interpretation.h is in libdeal.ii-dev 8.1.0-4.
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// $Id: data_component_interpretation.h 30036 2013-07-18 16:55:32Z maier $
//
// Copyright (C) 2007 - 2013 by the deal.II authors
//
// This file is part of the deal.II library.
//
// The deal.II library is free software; you can use it, redistribute
// it, and/or modify it under the terms of the GNU Lesser General
// Public License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// The full text of the license can be found in the file LICENSE at
// the top level of the deal.II distribution.
//
// ---------------------------------------------------------------------
#ifndef __deal2__data_component_interpretation_h
#define __deal2__data_component_interpretation_h
#include <deal.II/base/config.h>
DEAL_II_NAMESPACE_OPEN
/**
* A namespace solely for the declaration of the
* DataComponentInterpretation::DataComponentInterpretation enum.
*/
namespace DataComponentInterpretation
{
/**
* The members of this enum are used to
* describe the logical interpretation of
* what the various components of a
* vector-valued data set mean. For
* example, if one has a finite element
* for the Stokes equations in 2d,
* representing components $(u,v,p)$, one
* would like to indicate that the first
* two, $u$ and $v$, represent a logical
* vector so that later on when we
* generate graphical output we can hand
* them off to a visualization program
* that will automatically know to render
* them as a vector field, rather than as
* two separate and independent scalar
* fields.
*
* By passing a set of enums of the
* current kind to the
* DataOut_DoFData::add_data_vector
* functions, this can be achieved.
*
* See the step-22 tutorial
* program for an example on how this
* information can be used in practice.
*
* @author Wolfgang Bangerth, 2007
*/
enum DataComponentInterpretation
{
/**
* Indicates that a component of a
* data set corresponds to a scalar
* field independent of the others.
*/
component_is_scalar,
/**
* Indicates that a component of a
* data set is part of a
* vector-valued quantity.
*/
component_is_part_of_vector
};
}
DEAL_II_NAMESPACE_CLOSE
#endif
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