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[FEATURE] Introduces memory dataset groups for mesh layer. These dataset groups are temporary and are not kept when the project is closed. Memory dataset groups can be created from the mesh calculator with a new option. Allows the possibility to remove or save these memory dataset groups to a file with specified driver.
95 lines
3.3 KiB
C++
95 lines
3.3 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_ASCII_DAT_HPP
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#define MDAL_ASCII_DAT_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_driver.hpp"
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namespace MDAL
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{
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/**
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* ASCII Dat format is used by various solvers and the output
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* from various solvers can have slightly different header.
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* The format is used by TUFLOW, BASEMENT and HYDRO_AS-2D solvers.
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*
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* The most frequent form is based on official SMS documentation
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* https://www.xmswiki.com/wiki/SMS:ASCII_Dataset_Files_*.dat
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* The official format only supports data defined on vertices,
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* both scalar vector. The new format is recognized by keyword
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* "DATASET" on the first line of the file.
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*
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* BASEMENT solver also stores data defined on elements. Element is
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* either face or edge. To recognize
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* such dataset, the dataset name contains "_els_" substring
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* (e.g. depth_els_1.dat). We do not support reading element data for
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* meshes with combined 2D (faces) and 1D elements (edges)
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*
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* HYDRO_AS-2D solver can have mesh that has numbering gaps, but
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* speficies values for even missing indexes in dataset file
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*
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* In one file, there is always one dataset group stored.
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*
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* Sometime the "older" datasets may have some part of the
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* header missing, e.g. the file starts with SCALAR or VECTOR or TS
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* keyword. The older format does not have "active" flags for faces
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* and does not recognize most of the keywords. Old format data
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* are always defined on vertices
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*/
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class DriverAsciiDat: public Driver
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{
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public:
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DriverAsciiDat();
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~DriverAsciiDat( ) override;
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DriverAsciiDat *create() override;
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bool canReadDatasets( const std::string &uri ) override;
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void load( const std::string &datFile, Mesh *mesh ) override;
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bool persist( DatasetGroup *group ) override;
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std::string writeDatasetOnFileSuffix() const override;
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private:
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bool canReadOldFormat( const std::string &line ) const;
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bool canReadNewFormat( const std::string &line ) const;
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void loadOldFormat( std::ifstream &in, Mesh *mesh ) const;
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void loadNewFormat( std::ifstream &in, Mesh *mesh ) const;
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//! Gets maximum (native) index.
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//! For meshes without indexing gap it is vertexCount - 1
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//! For some HYDRO_AS-2D meshes with indexing gaps, it returns
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//! maximum native index of the vertex in defined in the mesh
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size_t maximumId( const Mesh *mesh ) const;
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void readVertexTimestep( const Mesh *mesh,
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std::shared_ptr<DatasetGroup> group,
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RelativeTimestamp t,
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bool isVector,
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bool hasStatus,
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std::ifstream &stream ) const;
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void readElementTimestep( const Mesh *mesh,
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std::shared_ptr<DatasetGroup> group,
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RelativeTimestamp t,
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bool isVector,
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std::ifstream &stream ) const;
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std::string mDatFile;
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};
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} // namespace MDAL
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#endif //MDAL_ASCII_DAT_HPP
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