[Paraview] Switching to parametric coordinates

[Berk Geveci]

Ah, I understand. There is no general solution to this problem in
VTK/ParaView. Texture coordinates is probably closest. You can look at
Texture map to ... filters. Essentially, you need to write a filter
that computes the parametric coordinates for the kind of surface you
are interested it.

-berk

On Mon, Nov 9, 2009 at 10:27 AM, Fred Fred <stan1313 at hotmail.fr> wrote:
> I mean I would like for instance to have my surface colored by a function of
> u, u being the value of the parametric coordinate, given an origin on the
> surface.
> BTW using parametric coordinates in a filter would require having these
> parametric coordinates available, which, for an arbitrary surface, would
> involve computing it, so this is the same problem: how to compute those
> parametric coordinates?
>
>> Date: Mon, 9 Nov 2009 09:04:53 -0500
>> Subject: Re: [Paraview] Switching to parametric coordinates
>> From: berk.geveci at kitware.com
>> To: stan1313 at hotmail.fr
>> CC: paraview at paraview.org
>>
>> I am not sure I understand what you mean. You want to use parametric
>> coordinates inside a filter?
>>
>> On Sun, Nov 8, 2009 at 1:37 PM, Fred Fred <stan1313 at hotmail.fr> wrote:
>> > I wonder if it is possible to switch to parametric coordinates, either
>> > on a
>> > curve or on a surface, given an arbitrary origin and arbitrary u or
>> > (u,v)
>> > unit vectors?
>> >
>> >
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