Richard GRENON wrote:
Hello all.
Could someone tell me if there is a simple way to get Normals
consistency over a multi-block dataset that contains only structured
surfaces grids?
Here is my problem: I have a multi-zone Tecplot file that contains the
skin of the right part of an aircraft, so the skin is NOT closed in
the symmetry plane. The skin is a collection of structured IxJ ordered
surface grids. The orientation of the surface grids are not
consistent, some grids having normals pointing outward, other grids
having normals pointing inward, and I need all normals pointing the
same direction for Surface Flow integration.
The Tecplot reader gives a multi-block dataset and I am using these
filters for rendering:
Tecplot reader->Extract Surface->Generate Surface Normals
The Generate Surface Normals filter is used with Consistency property
on (the default).
Also rendering with light is OK, adding the NormalGlyph filter shows
that normals are still inconsistent, each surface grid keeping its
orientation, and using the Surface Flow filter with any vector gives
bad results.
Thank you in advance for any suggestion.
Best regards.
Shame on me!
I have found the (very simple) Solution! Just add the "Merge Blocks"
filter between the Tecplot reader and the "Extract Surface" filter, and
it gives an unstructured grid. Now the Consistency property of the
"Generate Normals" is taken into account and "Surface flow" gives good
results.
I hope that this will help other people.
--
Richard GRENON
ONERA
Departement d'Aerodynamique Appliquee - DAAP/ACI
8 rue des Vertugadins
92190 MEUDON - FRANCE
phone : +33 1 46 73 42 17
fax : +33 1 46 73 41 46
mailto:[email protected]
http://www.onera.fr
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