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44 lines
2.0 KiB
44 lines
2.0 KiB
2 years ago
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\chapter{The Output \exo{} Database} \label{chap:outexo}
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The \exo{} database documentation can be accessed at
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\url{http://sandialabs.github.io/seacas/exodusII-new.pdf}. It contains
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a full detailed description of \exo{}. This section presents an
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overview of the concepts and structure of an \exo{} database. The
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first part of the \exo{} database consists of the mesh
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description which includes the nodal coordinates, the
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element block information (including the element connectivity), the
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node sets, and the side sets. The second part of the database contains
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the time step information, including all the variable values for each
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time step.
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If nodes and/or elements have been deleted from the database with a
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\cmd{ZOOM}, \cmd{FILTER}, or \cmd{VISIBLE} command, the entire output
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database reflects the deletions and any node or element renumbering
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caused by the deletions.
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The output database mesh description is copied (with changes for
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deletions) from the input database. The database title may be changed
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with the \cmd{TITLE} command.
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All QA records from the input database are copied to the output
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database, and a record is added describing the current \caps{\PROGRAM}
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run. All input database informational records are copied to the output
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database.
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All names on the output database are in uppercase and have all embedded
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blanks removed. The coordinate and element block names from the input
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database are converted and copied (with changes for deletions) to the
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output database. The output variable names are assigned in the
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equations.
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The output database element variable truth table has an entry for each
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output element variable which indicates whether the variable is defined
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for each element block. This is determined by the input element variable
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truth table, the equations, and the \cmd{BLOCKS} command.
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The output time steps include the time step times and the output
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variables for each time step. Each selected input time step is
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processed; non-selected time steps are ignored. For
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each time step, all variables are evaluated and written to the
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output database.
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