[mayavi] Threshold filter with Surface module and NaN...

[fred-2]

Hi all,

In a 3D space of NaN, I have a cylinder, with uniforme value = 255.

I use a Threshold filter with a Surface module to display this cylinder.

I get a snapshot.png.

I don't understand why the surface of the cylinder is black.

I would like to have all the cylinder in green, for instance.

Any clue?


TIA

Cheers,

--
Fred

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[Gael Varoquaux]

What about if you don't have NaNs?

On Fri, Dec 03, 2010 at 05:04:29PM +0100, Fred wrote:

> Hi all,
>
> In a 3D space of NaN, I have a cylinder, with uniforme value = 255.
>
> I use a Threshold filter with a Surface module to display this cylinder.
>
> I get a snapshot.png.
>
> I don't understand why the surface of the cylinder is black.
>
> I would like to have all the cylinder in green, for instance.
>
> Any clue?
>
>
> TIA
>
> Cheers,

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[fred-2]

Le 03/12/2010 21:23, Gael Varoquaux a écrit :
> What about if you don't have NaNs?
I have no choice, Gaël.

I could use Surface with contours, but the cylinder is empty in this case.

And using a colormap with transparency is not possible in such app.



Cheers,

--
Fred
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