mdal_xmdf.hpp

/*
 MDAL - Mesh Data Abstraction Library (MIT License)
 Copyright (C) 2018 Peter Petrik (zilolv at gmail dot com)
*/
 
#ifndef MDAL_XMDF_HPP
#define MDAL_XMDF_HPP
 
#include <string>
#include <vector>
#include <memory>
#include <iosfwd>
#include <iostream>
#include <fstream>
 
#include "mdal_data_model.hpp"
#include "mdal.h"
#include "mdal_hdf5.hpp"
#include "mdal_driver.hpp"
 
namespace MDAL
{
 
  class XmdfDataset: public Dataset2D
  {
    public:
      XmdfDataset( DatasetGroup *grp,
                   const HdfDataset &valuesDs,
                   const HdfDataset &activeDs,
                   hsize_t timeIndex );
      ~XmdfDataset() override;
 
      size_t scalarData( size_t indexStart, size_t count, double *buffer ) override;
      size_t vectorData( size_t indexStart, size_t count, double *buffer ) override;
      size_t activeData( size_t indexStart, size_t count, int *buffer ) override;
 
      const HdfDataset &dsValues() const;
      const HdfDataset &dsActive() const;
      hsize_t timeIndex() const;
 
    private:
      HdfDataset mHdf5DatasetValues;
      HdfDataset mHdf5DatasetActive;
      // index or row where the data for this timestep begins
      hsize_t mTimeIndex;
  };
 
  class DriverXmdf: public Driver
  {
    public:
      DriverXmdf();
      ~DriverXmdf( ) override = default;
      DriverXmdf *create() override;
 
      bool canReadDatasets( const std::string &uri ) override;
      void load( const std::string &datFile, Mesh *mesh ) override;
 
    private:
      MDAL::Mesh *mMesh = nullptr;
      std::string mDatFile;
      std::shared_ptr<MDAL::DatasetGroup> readXmdfGroupAsDatasetGroup(
        const HdfGroup &rootGroup,
        const std::string &groupName,
        size_t vertexCount,
        size_t faceCount ) const;
 
      void addDatasetGroupsFromXmdfGroup(
        DatasetGroups &groups,
        const HdfGroup &rootGroup,
        const std::string &nameSuffix,
        size_t vertexCount,
        size_t faceCount ) const;
 
      void readGroupsTree( HdfFile &file,
                           const std::string &name,
                           MDAL::DatasetGroups &groups,
                           size_t vertexCount,
                           size_t faceCount ) const;
 
  };
 
} // namespace MDAL
#endif //MDAL_ASCII_DAT_HPP