user_manual:sesamx:data_persistence

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user_manual:sesamx:data_persistence [2023/01/28 13:35]
Ali Baba [The SesamX model by example] 		user_manual:sesamx:data_persistence [2023/01/28 13:37]
Ali Baba [How is the SesamX database structured]
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 Then, we would like to assign a material and elements properties. There are 3 steps here. First we need to define the material characteristics, then we need to assign this material on a property, and finally we need to apply this property to the elements. Then, we would like to assign a material and elements properties. There are 3 steps here. First we need to define the material characteristics, then we need to assign this material on a property, and finally we need to apply this property to the elements.
  
-By doing so, we have introduced 2 new objects to the model: the material and the property, each containing the data that define them. And we have also created 2 relations: the property depends on the material and on the mesh.+By doing so, we have introduced 2 new objects to the model: the material and the property, each containing the data that defines them. And we have also created 2 relations: the property depends on the material and on the mesh.
  
 {{ :user_manual:model_with_mesh_mat_prop.png?400 |}} {{ :user_manual:model_with_mesh_mat_prop.png?400 |}}
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 First of all, the SesamX database is **encoded using the [[https://www.hdfgroup.org/solutions/hdf5|HDF5 file format]]**. Besides being open, this format enables efficient storage of large numeric data. This file structure is made of groups and datasets. Each group or dataset can carry attributes used to qualify the data. First of all, the SesamX database is **encoded using the [[https://www.hdfgroup.org/solutions/hdf5|HDF5 file format]]**. Besides being open, this format enables efficient storage of large numeric data. This file structure is made of groups and datasets. Each group or dataset can carry attributes used to qualify the data.
  
-The SesamX database relies on this group and dataset structure to organize the data. **A model is represented as a group in the database**. Inside this model group, there is one group per object composing the model. Eventually, each object group contains datasets describing the object data.+The SesamX database relies on this group and dataset structure to organize the data. **A model is represented as a group in the database**. Inside this model's group, there is one group per object composing the model. Eventually, each object's group contains datasets describing the object data.
  
 {{ :user_manual:sesamx_database.png?400 |}} {{ :user_manual:sesamx_database.png?400 |}}
  • user_manual/sesamx/data_persistence.txt
  • Last modified: 2023/01/28 13:37
  • by Ali Baba