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86 lines
2.3 KiB
C++
86 lines
2.3 KiB
C++
/*
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MDAL - Mesh Data Abstraction Library (MIT License)
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Copyright (C) 2018 Peter Petrik (zilolv at gmail dot com)
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*/
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#ifndef MDAL_XMDF_HPP
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#define MDAL_XMDF_HPP
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#include <string>
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#include <vector>
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#include <memory>
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#include <iosfwd>
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#include <iostream>
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#include <fstream>
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#include "mdal_data_model.hpp"
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#include "mdal.h"
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#include "mdal_hdf5.hpp"
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#include "mdal_driver.hpp"
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namespace MDAL
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{
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/**
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* The XmdfDataset reads the data directly from HDF5 file
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* by usage of hyperslabs retrieval
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*
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* basically all (timesteps) data for one particular dataset groups
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* are stored in single
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* 3D arrays (time, x, y) for vector datasets
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* 2D arrays (time, x) for scalar datasets
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* 2D arrays (time, active) for active flags
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*/
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class XmdfDataset: public Dataset
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{
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public:
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XmdfDataset( DatasetGroup *grp,
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const HdfDataset &valuesDs,
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const HdfDataset &activeDs,
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hsize_t timeIndex );
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~XmdfDataset() override;
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size_t scalarData( size_t indexStart, size_t count, double *buffer ) override;
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size_t vectorData( size_t indexStart, size_t count, double *buffer ) override;
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size_t activeData( size_t indexStart, size_t count, int *buffer ) override;
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const HdfDataset &dsValues() const;
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const HdfDataset &dsActive() const;
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hsize_t timeIndex() const;
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private:
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HdfDataset mHdf5DatasetValues;
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HdfDataset mHdf5DatasetActive;
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// index or row where the data for this timestep begins
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hsize_t mTimeIndex;
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};
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class DriverXmdf: public Driver
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{
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public:
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DriverXmdf();
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~DriverXmdf( ) override = default;
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DriverXmdf *create() override;
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bool canRead( const std::string &uri ) override;
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void load( const std::string &datFile, Mesh *mesh, MDAL_Status *status ) override;
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private:
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MDAL::Mesh *mMesh = nullptr;
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std::string mDatFile;
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std::shared_ptr<MDAL::DatasetGroup> readXmdfGroupAsDatasetGroup(
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const HdfGroup &rootGroup,
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const std::string &groupName,
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size_t vertexCount,
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size_t faceCount );
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void addDatasetGroupsFromXmdfGroup(
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DatasetGroups &groups,
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const HdfGroup &rootGroup,
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size_t vertexCount,
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size_t faceCount );
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};
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} // namespace MDAL
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#endif //MDAL_ASCII_DAT_HPP
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