This diagram illustrates the layout of the CGNS file for the
unstructured grid used in this example.
Just below the root node of the ADF file are two nodes with the
following characteristics.
- Name: CGNSLibraryVersion
Label: CGNSLibraryVersion_t
Data: (version number)
- Name: Base
Label: CGNSBase_t
Data: CellDimension=3, PhysicalDimension=3
Just below the CGNSBase_t node is a Zone_t node, with:
- Name: Zone 1
Label: Zone_t
Data: VertexSize=3213, CellSize=2560,
VertexSizeBoundary=0
At the next level, below the Zone_t node are the following three
nodes.
- Name: ZoneType
Label: ZoneType_t
Data: Unstructured
- Name: GridCoordinates
Label: GridCoordinates_t
Data: MT
- Name: Elem
Label: Elements_t
Data: ElementType=HEXA_8,
ElementSizeBoundary=0
Below the GridCoordinates_t node are three nodes defining
the grid coordinates.
In the figure, only the first is shown, as follows.
- Name: CoordinateX
Label: DataArray_t
Data: x(1) to x(3213)
Finally, below the Elements_t node are the following two nodes
defining the element range and connectivity data.
- Name: ElementRange
Label: IndexRange_t
Data: 1,2560
- Name: ElementConnectivity
Label: DataArray_t
Data: ielem(1,1) to ielem(8,2560)