CGNS writer writes polydata into volumetric data
Starting from a .vtp file (here attached), that is polydata, if we read it then write it in cgns format (here attached below), the resulting mesh is now an unstructured grid. This is undesired as some postprocessing tools suppose a give type to do their analysis.
Vtp file: blade.vtp
produced CGNS file: lalala.cgns
When running cgnscheck on the produced cgns file I see:
luca@nevada ~/Downloads> cgnscheck -V lalala.cgns (cgns)
reading CGNS file lalala.cgns
File Version=4.1
File Precision=64
reading base "Base"
reading zone "Zone 1"
reading element set "Elem_Triangles"
checking base "Base"
Cell Dimension=2
Physical Dimension=3
Simulation Type=Null
checking zone "Zone 1"
Zone Type=Unstructured
Vertex Size=[6914]
Cell Size=[27360]
checking coordinates "GridCoordinates"
checking coordinate "CoordinateX"
Coordinate Range=0.176841 -> 0.251316 (0.074475)
WARNING:dataclass not given
checking coordinate "CoordinateY"
Coordinate Range=-0.0245879 -> 0.0234447 (0.0480326)
WARNING:dataclass not given
checking coordinate "CoordinateZ"
Coordinate Range=0.000302561 -> 0.0429997 (0.0426971)
WARNING:dataclass not given
checking elements
Number Element Sets=1
[0D,1D,2D,3D] Elements=[0,0,27360,0]
checking element set "Elem_Triangles"
Element Set Type=TRI_3
Element Range=[1,27360]
[0D,1D,2D,3D] Elements=[0,0,27360,0]
checking solution "PointData"
Grid Location=Vertex
checking solution field "P"
WARNING:not a CGNS data-name identifier
WARNING:dataclass is not given
checking solution field "T"
WARNING:not a CGNS data-name identifier
WARNING:dataclass is not given
checking solution field "density"
WARNING:not a CGNS data-name identifier
WARNING:dataclass is not given
checking solution field "entropy"
WARNING:not a CGNS data-name identifier
WARNING:dataclass is not given
checking complete
11 warnings (11 shown)