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Wed, Dec 11, 12:01

paraview_helper.hh
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/**
* @file paraview_helper.hh
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
*
* @date creation: Thu Mar 11 2010
* @date last modification: Wed Jun 05 2013
*
* @brief paraview helper header
*
* @section LICENSE
*
* Copyright (©) 2010-2012, 2014 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* IOHelper is free software: you can 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 3 of the License, or (at your option) any
* later version.
*
* IOHelper is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with IOHelper. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __IOHELPER_PARAVIEW_HELPER_H__
#define __IOHELPER_PARAVIEW_HELPER_H__
/* -------------------------------------------------------------------------- */
#include "base64.hh"
#include <iomanip>
#include <map>
#include "visitor.hh"
#include "field_interface.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_IOHELPER__
// Taken from vtkCellType.h
enum VTKCellType {
// Linear cells
VTK_EMPTY_CELL = 0,
VTK_VERTEX = 1,
VTK_POLY_VERTEX = 2,
VTK_LINE = 3,
VTK_POLY_LINE = 4,
VTK_TRIANGLE = 5,
VTK_TRIANGLE_STRIP = 6,
VTK_POLYGON = 7,
VTK_PIXEL = 8,
VTK_QUAD = 9,
VTK_TETRA = 10,
VTK_VOXEL = 11,
VTK_HEXAHEDRON = 12,
VTK_WEDGE = 13,
VTK_PYRAMID = 14,
VTK_PENTAGONAL_PRISM = 15,
VTK_HEXAGONAL_PRISM = 16,
// Quadratic, isoparametric cells
VTK_QUADRATIC_EDGE = 21,
VTK_QUADRATIC_TRIANGLE = 22,
VTK_QUADRATIC_QUAD = 23,
VTK_QUADRATIC_POLYGON = 36,
VTK_QUADRATIC_TETRA = 24,
VTK_QUADRATIC_HEXAHEDRON = 25,
VTK_QUADRATIC_WEDGE = 26,
VTK_QUADRATIC_PYRAMID = 27,
VTK_BIQUADRATIC_QUAD = 28,
VTK_TRIQUADRATIC_HEXAHEDRON = 29,
VTK_QUADRATIC_LINEAR_QUAD = 30,
VTK_QUADRATIC_LINEAR_WEDGE = 31,
VTK_BIQUADRATIC_QUADRATIC_WEDGE = 32,
VTK_BIQUADRATIC_QUADRATIC_HEXAHEDRON = 33,
VTK_BIQUADRATIC_TRIANGLE = 34,
// Polyhedron cell (consisting of polygonal faces)
VTK_POLYHEDRON = 42,
// Higher order cells in parametric form
VTK_PARAMETRIC_CURVE = 51,
VTK_PARAMETRIC_SURFACE = 52,
VTK_PARAMETRIC_TRI_SURFACE = 53,
VTK_PARAMETRIC_QUAD_SURFACE = 54,
VTK_PARAMETRIC_TETRA_REGION = 55,
VTK_PARAMETRIC_HEX_REGION = 56,
// Higher order cells
VTK_HIGHER_ORDER_EDGE = 60,
VTK_HIGHER_ORDER_TRIANGLE = 61,
VTK_HIGHER_ORDER_QUAD = 62,
VTK_HIGHER_ORDER_POLYGON = 63,
VTK_HIGHER_ORDER_TETRAHEDRON = 64,
VTK_HIGHER_ORDER_WEDGE = 65,
VTK_HIGHER_ORDER_PYRAMID = 66,
VTK_HIGHER_ORDER_HEXAHEDRON = 67,
VTK_NUMBER_OF_CELL_TYPES
};
inline std::ostream & operator <<(std::ostream & stream, const VTKCellType & type) {
stream << UInt(type);
return stream;
}
class ParaviewHelper : public Visitor {
/* ------------------------------------------------------------------------ */
/* Typedefs */
/* ------------------------------------------------------------------------ */
enum Stage{
_s_writePosition,
_s_writeFieldProperty,
_s_writeField,
_s_writeConnectivity,
_s_writeElemType,
_s_buildOffsets
};
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
ParaviewHelper(File & f, UInt mode);
virtual ~ParaviewHelper();
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
//! write the PVTU file
template <typename T>
void writePVTU(T & per_node_data, T & per_elem_data,
const std::vector<std::string> & vtus);
//! write the PVD file for time description
static void writeTimePVD(const std::string & filename,
const std::vector< std::pair<Real, std::string> > & pvtus);
//! write the header of a vtu file
void writeHeader(int nb_nodes,int nb_elems);
//! write a field
template <typename T> void writeField(T & data);
//! write a connectivity field
template <typename T> void writeConnectivity(T & data);
//! write an element type field
template <typename T> void writeElemType(T & data);
//! write the field properties
template <typename T> void writeFieldProperty(T & data);
//! write the connectivities offset
template <typename T> void writeOffsets(T & data);
template <typename T>
void pushDataFields(T & per_node_data, T & per_elem_data);
//! push the position field to the paraview file
void pushPosition(FieldInterface & f);
//! push a field to the paraview file
void pushField(FieldInterface & f);
//! build the offset from connectivities
void buildOffsets(FieldInterface & f);
//! push a connectivity field
void pushConnectivity(FieldInterface & f);
//! push a element type field
void pushElemType(FieldInterface & f);
//! get the formated vtu name
// static std::string getVTUName(const std::string & basename, UInt proc);
//! push a small array of values
template <template<typename T> class Cont, typename T>
void pushData(const Cont<T> & n);
//! push a small array of values of homogeneous values with padding to size dim
template <template<typename T> class Cont, typename T>
inline void pushData(const Cont<T> & n, UInt dim);
//! pushing datum
template <typename T> void pushDatum(const T & n, UInt size = 3);
//! visitor system
template <typename T> void visitField(T & visited);
private:
void setMode(int mode);
std::string dataTypeToStr(DataType data_type);
/* ------------------------------------------------------------------------ */
/* Methods for writing control sequences in the paraview files */
/* ------------------------------------------------------------------------ */
public:
void startDofList(int dimension);
void endDofList();
void startCells();
void endCells();
void startCellsConnectivityList();
void endCellsConnectivityList();
void startCellsoffsetsList();
void endCellsoffsetsList();
void startCellstypesList();
void endCellstypesList();
void startPointDataList();
void endPointDataList();
void startCellDataList();
void endCellDataList();
void startData(const std::string & name, int nb_components, const std::string & type);
void PDataArray(const std::string & name, int nb_components, const std::string & type);
void endData();
void write_conclusion();
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
protected:
Base64Writer b64;
int bflag;
File & file;
long header_offset;
unsigned int compteur;
Stage current_stage;
bool position_flag;
//! mapping between iohelper elements and paraview elements
std::map<ElemType, VTKCellType> paraview_code_type;
//! mapping of the connectivities between iohelper and paraview
std::map<ElemType, UInt *> write_reorder;
};
/* -------------------------------------------------------------------------- */
#include "paraview_helper.tcc"
/* -------------------------------------------------------------------------- */
__END_IOHELPER__
#endif /* __IOHELPER_PARAVIEW_HELPER_H__ */

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