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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::PVTIReader | ||
7 | */ | ||
8 | #ifndef GRIDFORMAT_VTK_PVTI_READER_HPP_ | ||
9 | #define GRIDFORMAT_VTK_PVTI_READER_HPP_ | ||
10 | |||
11 | #include <gridformat/vtk/vti_reader.hpp> | ||
12 | #include <gridformat/vtk/pxml_reader.hpp> | ||
13 | |||
14 | namespace GridFormat { | ||
15 | |||
16 | /*! | ||
17 | * \ingroup VTK | ||
18 | * \brief Reader for .pvtp file format | ||
19 | * \copydetails VTK::PXMLStructuredGridReader | ||
20 | */ | ||
21 | class PVTIReader : public VTK::PXMLStructuredGridReader<VTIReader> { | ||
22 | using ParentType = VTK::PXMLStructuredGridReader<VTIReader>; | ||
23 | |||
24 | public: | ||
25 | 1 | PVTIReader() | |
26 |
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2 | : ParentType("PImageData") |
27 | 1 | {} | |
28 | |||
29 | 48 | explicit PVTIReader(const NullCommunicator&) | |
30 |
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96 | : ParentType("PImageData") |
31 | 48 | {} | |
32 | |||
33 | template<Concepts::Communicator C> | ||
34 | 132 | explicit PVTIReader(const C& comm) | |
35 |
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264 | : ParentType("PImageData", comm) |
36 | 132 | {} | |
37 | |||
38 | private: | ||
39 | 2 | std::string _name() const override { | |
40 |
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4 | return "PVTIReader"; |
41 | } | ||
42 | |||
43 | 9 | std::vector<double> _ordinates(unsigned int direction) const override { | |
44 |
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9 | if (this->_num_process_pieces() == 0) |
45 | ✗ | return {}; | |
46 |
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9 | if (this->_num_process_pieces() == 1) |
47 |
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6 | return this->_readers().front().ordinates(direction); |
48 | |||
49 |
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3 | const auto extents = this->_specs().extents; |
50 |
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3 | const auto extent_begin = this->_specs().extents[2*direction]; |
51 |
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3 | const auto origin = this->origin(); |
52 |
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3 | const auto spacing = this->spacing(); |
53 | 3 | const std::size_t num_ordinates(extents[2*direction + 1] - extent_begin + 1); | |
54 |
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3 | std::vector<double> result(num_ordinates); |
55 |
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6 | std::ranges::copy( |
56 |
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3 | std::views::iota(std::size_t{0}, num_ordinates) | std::views::transform([&] (const std::size_t i) { |
57 | 16 | return origin[direction] + (extent_begin + i)*spacing[direction]; | |
58 |
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3 | }), |
59 | result.begin() | ||
60 | ); | ||
61 | 3 | return result; | |
62 | 3 | } | |
63 | }; | ||
64 | |||
65 | } // namespace GridFormat | ||
66 | |||
67 | #endif // GRIDFORMAT_VTK_PVTI_READER_HPP_ | ||
68 |