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0675c0b697
* MDAL 0.5.90 : support for custom Logger and 1D meshes * [FEATURE] [MESH] Support rendering of 1D meshes, see https://github.com/qgis/QGIS-Enhancement-Proposals/issues/164 1D mesh consist of edges (edge is straight line segment with 2 vertices) and the data that is defined on either vertices or edges. Such data can be loaded by MDAL and rendered as mesh layer in QGIS.
94 lines
3.7 KiB
C++
94 lines
3.7 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_NETCDF_HPP
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#define MDAL_NETCDF_HPP
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#include <string>
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#include <vector>
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//! C++ Wrapper around netcdf C library
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class NetCDFFile
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{
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public:
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//! Create file with invalid handle
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NetCDFFile();
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//! Closes the file
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~NetCDFFile();
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int handle() const;
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void openFile( const std::string &fileName );
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std::vector<int> readIntArr( const std::string &name, size_t dim ) const;
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/** Reads hyperslap from double variable - 2D array */
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std::vector<int> readIntArr( int arr_id,
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size_t start_dim1,
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size_t start_dim2,
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size_t count_dim1,
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size_t count_dim2
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) const;
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/** Reads hyperslap from double variable - 1D array */
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std::vector<int> readIntArr( int arr_id,
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size_t start_dim,
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size_t count_dim
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) const;
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std::vector<double> readDoubleArr( const std::string &name, size_t dim ) const;
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/** Reads hyperslap from double variable - 2D array */
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std::vector<double> readDoubleArr( int arr_id,
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size_t start_dim1,
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size_t start_dim2,
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size_t count_dim1,
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size_t count_dim2
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) const;
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/** Reads hyperslap from double variable - 1D array */
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std::vector<double> readDoubleArr( int arr_id,
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size_t start_dim,
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size_t count_dim
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) const;
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bool hasArr( const std::string &name ) const;
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int arrId( const std::string &name ) const;
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std::vector<std::string> readArrNames() const;
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bool hasAttrInt( const std::string &name, const std::string &attr_name ) const;
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int getAttrInt( const std::string &name, const std::string &attr_name ) const;
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bool hasAttrDouble( int varid, const std::string &attr_name ) const;
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double getAttrDouble( int varid, const std::string &attr_name ) const;
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/**
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* Get string attribute
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* \param name name of the variable
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* \param attr_name name of the attribute of the variable
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* \returns empty string if attribute is missing, else attribute value
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*/
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std::string getAttrStr( const std::string &name, const std::string &attr_name ) const;
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std::string getAttrStr( const std::string &attr_name, int varid ) const;
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double getFillValue( int varid ) const;
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int getVarId( const std::string &name );
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void getDimension( const std::string &name, size_t *val, int *ncid_val ) const;
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void getDimensions( const std::string &variableName, std::vector<size_t> &dimensionsId, std::vector<int> &dimensionIds );
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bool hasDimension( const std::string &name ) const;
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void createFile( const std::string &fileName );
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int defineDimension( const std::string &name, size_t size );
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int defineVar( const std::string &varName, int ncType, int dimensionCount, const int *dimensions );
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void putAttrStr( int varId, const std::string &attrName, const std::string &value );
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void putAttrInt( int varId, const std::string &attrName, int value );
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void putAttrDouble( int varId, const std::string &attrName, double value );
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void putDataDouble( int varId, const size_t index, const double value );
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void putDataArrayInt( int varId, size_t line, size_t faceVerticesMax, int *values );
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private:
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int mNcid; // C handle to the file
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};
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#endif // MDAL_NETCDF_HPP
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