[Paraview] Surface LIC Problem

[Utkarsh Ayachit]

You could also either use "Extract Block" to remove blocks on which
you don't want to render LIC and then do LIC on the rest. There are
others ways for this subsetting too, based on the nature of your data:
e.g. you could your Extract Selection or Threshold to remove the cells
that you don't want to render LIC on and then render the result.

On Mon, Feb 10, 2014 at 3:57 AM, Richard Grenon <richard.grenon at onera.fr> wrote:
> Hello
>
> Which vector field are you using with LIC ?
>
> The LIC control panel allows to choose the vector to be used, and you MUST
> choose a vector field that is NOT ZERO on the surface.
>
> With Euler CFD results, the velocity vector is not zero at the wall, and you
> can use this vector.
>
> With Navier-Stokes CFD results, the velocity vector is zero at the wall, and
> you have to use the skin friction vector instead.
>
> Richard
>
>> I'm trying the Surface LIC Plugin.
>> My models are formatted as VTK MultiBlock Dataset, and there are
>> geometries
>> of fluids and walls.
>> I'd like to visualize LIC on the walls.
>>
>> First I applied Surface LIC to the walls, the results are something wrong.
>> Next to the fluids, they are OK.
>> But there are extra walls which I don't want to visualize (ex.
>> Inlets/Outlets, external boundaries).
>> Maybe the reason of the walls are that they don't have the velocity values
>> of main flows.
>>
>> I also tried the Resample with Dataset filter for linking main flows to
>> the walls.
>> The results are roughly good, but sometimes the resampling qualitys are
>> poor (dropping the values).
>>
>>
>> Is there a good way to visualize the part of the walls' LIC?
>> My sources have complicated shapes, so I want to make the best use of the
>> information of blocks of walls.
>
>
> --
>  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:Richard.Grenon at onera.fr
>  http://www.onera.fr
>
>
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