GCC Code Coverage Report

Directory:	gridformat/
File:	gridformat/vtk/pvtu_writer.hpp
Date:	2025-04-11 15:08:41

	Exec	Total	Coverage
Lines:	49	51	96.1%
Functions:	93	172	54.1%
Branches:	105	396	26.5%

  
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      // SPDX-FileCopyrightText: 2022-2023 Dennis Gläser <dennis.glaeser@iws.uni-stuttgart.de>
    
      // SPDX-License-Identifier: MIT
    
      /*!
    
       * \file
    
       * \ingroup VTK
    
       * \copydoc GridFormat::PVTUWriter
    
       */
    
      #ifndef GRIDFORMAT_VTK_PVTU_WRITER_HPP_
    
      #define GRIDFORMAT_VTK_PVTU_WRITER_HPP_
    
      #include <ostream>
    
      #include <string>
    
      #include <fstream>
    
      #include <filesystem>
    
      #include <gridformat/common/exceptions.hpp>
    
      #include <gridformat/common/lvalue_reference.hpp>
    
      #include <gridformat/parallel/communication.hpp>
    
      #include <gridformat/parallel/helpers.hpp>
    
      #include <gridformat/grid/grid.hpp>
    
      #include <gridformat/xml/element.hpp>
    
      #include <gridformat/vtk/vtu_writer.hpp>
    
      #include <gridformat/vtk/parallel.hpp>
    
      namespace GridFormat {
    
      /*!
    
       * \ingroup VTK
    
       * \brief Writer for parallel .pvtu files
    
       */
    
      template<Concepts::UnstructuredGrid Grid,
    
               Concepts::Communicator Communicator>
    
      class PVTUWriter : public VTK::XMLWriterBase<Grid, PVTUWriter<Grid, Communicator>> {
    
          using ParentType = VTK::XMLWriterBase<Grid, PVTUWriter<Grid, Communicator>>;
    
       public:
    
      323
          explicit PVTUWriter(LValueReferenceOf<const Grid> grid,
    
                              Communicator comm,
    
                              VTK::XMLOptions xml_opts = {})
    
      323
          : ParentType(grid.get(), ".pvtu", false, xml_opts)
    
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      969
          , _comm(comm)
    
      323
          {}
    
      178
          const Communicator& communicator() const {
    
      178
              return _comm;
    
          }
    
       private:
    
          Communicator _comm;
    
      70
          PVTUWriter _with(VTK::XMLOptions xml_opts) const override {
    
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      70
              return PVTUWriter{this->grid(), _comm, std::move(xml_opts)};
    
          }
    
      ✗
          void _write(std::ostream&) const override {
    
      ✗
              throw InvalidState(
    
                  "PVTUWriter does not support direct export into stream. "
    
                  "Use overload with filename instead!"
    
              );
    
          }
    
      446
          virtual void _write(const std::string& filename_with_ext) const override {
    
      446
              _write_piece(filename_with_ext);
    
      442
              Parallel::barrier(_comm);  // ensure all pieces finished successfully
    
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      442
              if (Parallel::rank(_comm) == 0)
    
      228
                  _write_pvtu_file(filename_with_ext);
    
      442
              Parallel::barrier(_comm);  // ensure .pvtu file is written before returning
    
      442
          }
    
      446
          void _write_piece(const std::string& par_filename) const {
    
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      446
              VTUWriter writer{this->grid(), this->_xml_opts};
    
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      446
              this->copy_fields(writer);
    
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      450
              writer.write(PVTK::piece_basefilename(par_filename, Parallel::rank(_comm)));
    
      446
          }
    
      228
          void _write_pvtu_file(const std::string& filename_with_ext) const {
    
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      228
              std::ofstream file_stream(filename_with_ext, std::ios::out);
    
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      456
              XMLElement pvtk_xml("VTKFile");
    
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      456
              pvtk_xml.set_attribute("type", "PUnstructuredGrid");
    
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      456
              XMLElement& grid = pvtk_xml.add_child("PUnstructuredGrid");
    
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      456
              XMLElement& ppoint_data = grid.add_child("PPointData");
    
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      228
              XMLElement& pcell_data = grid.add_child("PCellData");
    
      594
              std::visit([&] (const auto& encoder) {
    
      503
                  std::visit([&] (const auto& data_format) {
    
      137
                      PVTK::PDataArrayHelper pdata_helper{encoder, data_format, ppoint_data};
    
      137
                      PVTK::PDataArrayHelper cdata_helper{encoder, data_format, pcell_data};
    
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      1623
                      std::ranges::for_each(this->_point_field_names(), [&] (const std::string& name) {
    
      502
                          pdata_helper.add(name, this->_get_point_field(name));
    
                      });
    
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      1617
                      std::ranges::for_each(this->_cell_field_names(), [&] (const std::string& name) {
    
      499
                          cdata_helper.add(name, this->_get_cell_field(name));
    
                      });
    
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      137
                  }, this->_xml_settings.data_format);
    
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      228
              }, this->_xml_settings.encoder);
    
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      684
              XMLElement& point_array = grid.add_child("PPoints").add_child("PDataArray");
    
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      456
              point_array.set_attribute("NumberOfComponents", "3");
    
      366
              std::visit([&] <typename T> (const Precision<T>& prec) {
    
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      411
                  point_array.set_attribute("type", VTK::attribute_name(prec));
    
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      228
              }, this->_xml_settings.coordinate_precision);
    
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              std::ranges::for_each(Parallel::ranks(_comm), [&] (int rank) {
    
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                  grid.add_child("Piece").set_attribute("Source", std::filesystem::path{
    
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      536
                      PVTK::piece_basefilename(filename_with_ext, rank) + ".vtu"
    
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      804
                  }.filename());
    
              });
    
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      228
              this->_set_default_active_fields(pvtk_xml.get_child("PUnstructuredGrid"));
    
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      228
              write_xml_with_version_header(pvtk_xml, file_stream, Indentation{{.width = 2}});
    
      228
          }
    
      };
    
      template<typename G, Concepts::Communicator C>
    
      PVTUWriter(G&&, const C&, VTK::XMLOptions = {}) -> PVTUWriter<std::remove_cvref_t<G>, C>;
    
      }  // namespace GridFormat
    
      #endif  // GRIDFORMAT_VTK_PVTU_WRITER_HPP_

Line	Branch	Exec	Source
1			// SPDX-FileCopyrightText: 2022-2023 Dennis Gläser <dennis.glaeser@iws.uni-stuttgart.de>
2			// SPDX-License-Identifier: MIT
3			/*!
4			* \file
5			* \ingroup VTK
6			* \copydoc GridFormat::PVTUWriter
7			*/
8			#ifndef GRIDFORMAT_VTK_PVTU_WRITER_HPP_
9			#define GRIDFORMAT_VTK_PVTU_WRITER_HPP_
10
11			#include <ostream>
12			#include <string>
13			#include <fstream>
14			#include <filesystem>
15
16			#include <gridformat/common/exceptions.hpp>
17			#include <gridformat/common/lvalue_reference.hpp>
18			#include <gridformat/parallel/communication.hpp>
19			#include <gridformat/parallel/helpers.hpp>
20
21			#include <gridformat/grid/grid.hpp>
22			#include <gridformat/xml/element.hpp>
23			#include <gridformat/vtk/vtu_writer.hpp>
24			#include <gridformat/vtk/parallel.hpp>
25
26			namespace GridFormat {
27
28			/*!
29			* \ingroup VTK
30			* \brief Writer for parallel .pvtu files
31			*/
32			template<Concepts::UnstructuredGrid Grid,
33			Concepts::Communicator Communicator>
34			class PVTUWriter : public VTK::XMLWriterBase<Grid, PVTUWriter<Grid, Communicator>> {
35			using ParentType = VTK::XMLWriterBase<Grid, PVTUWriter<Grid, Communicator>>;
36
37			public:
38		323	explicit PVTUWriter(LValueReferenceOf<const Grid> grid,
39			Communicator comm,
40			VTK::XMLOptions xml_opts = {})
41		323	: ParentType(grid.get(), ".pvtu", false, xml_opts)
42	2/4 ✓ Branch 1 taken 221 times. ✗ Branch 2 not taken. ✓ Branch 4 taken 221 times. ✗ Branch 5 not taken.	969	, _comm(comm)
43		323	{}
44
45		178	const Communicator& communicator() const {
46		178	return _comm;
47			}
48
49			private:
50			Communicator _comm;
51
52		70	PVTUWriter _with(VTK::XMLOptions xml_opts) const override {
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54			}
55
56		✗	void _write(std::ostream&) const override {
57		✗	throw InvalidState(
58			"PVTUWriter does not support direct export into stream. "
59			"Use overload with filename instead!"
60			);
61			}
62
63		446	virtual void _write(const std::string& filename_with_ext) const override {
64		446	_write_piece(filename_with_ext);
65		442	Parallel::barrier(_comm); // ensure all pieces finished successfully
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67		228	_write_pvtu_file(filename_with_ext);
68		442	Parallel::barrier(_comm); // ensure .pvtu file is written before returning
69		442	}
70
71		446	void _write_piece(const std::string& par_filename) const {
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75		446	}
76
77		228	void _write_pvtu_file(const std::string& filename_with_ext) const {
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79
80	1/2 ✓ Branch 1 taken 137 times. ✗ Branch 2 not taken.	456	XMLElement pvtk_xml("VTKFile");
81	2/4 ✓ Branch 1 taken 137 times. ✗ Branch 2 not taken. ✓ Branch 4 taken 137 times. ✗ Branch 5 not taken.	456	pvtk_xml.set_attribute("type", "PUnstructuredGrid");
82
83	2/4 ✓ Branch 1 taken 137 times. ✗ Branch 2 not taken. ✓ Branch 4 taken 137 times. ✗ Branch 5 not taken.	456	XMLElement& grid = pvtk_xml.add_child("PUnstructuredGrid");
84	2/4 ✓ Branch 1 taken 137 times. ✗ Branch 2 not taken. ✓ Branch 4 taken 137 times. ✗ Branch 5 not taken.	456	XMLElement& ppoint_data = grid.add_child("PPointData");
85	2/4 ✓ Branch 1 taken 137 times. ✗ Branch 2 not taken. ✓ Branch 4 taken 137 times. ✗ Branch 5 not taken.	228	XMLElement& pcell_data = grid.add_child("PCellData");
86		594	std::visit([&] (const auto& encoder) {
87		503	std::visit([&] (const auto& data_format) {
88		137	PVTK::PDataArrayHelper pdata_helper{encoder, data_format, ppoint_data};
89		137	PVTK::PDataArrayHelper cdata_helper{encoder, data_format, pcell_data};
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91		502	pdata_helper.add(name, this->_get_point_field(name));
92			});
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94		499	cdata_helper.add(name, this->_get_cell_field(name));
95			});
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98
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100	2/4 ✓ Branch 1 taken 137 times. ✗ Branch 2 not taken. ✓ Branch 4 taken 137 times. ✗ Branch 5 not taken.	456	point_array.set_attribute("NumberOfComponents", "3");
101		366	std::visit([&] <typename T> (const Precision<T>& prec) {
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104
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109			});
110
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113		228	}
114			};
115
116			template<typename G, Concepts::Communicator C>
117			PVTUWriter(G&&, const C&, VTK::XMLOptions = {}) -> PVTUWriter<std::remove_cvref_t<G>, C>;
118
119			} // namespace GridFormat
120
121			#endif // GRIDFORMAT_VTK_PVTU_WRITER_HPP_
122