[vtkusers] How to crop a 3D model?

[David Doria]

On Wed, Apr 18, 2012 at 11:33 AM, Wenlong <scc.wwl at gmail.com> wrote:

> Hi, David,
>
> Thank you for your suggestions. I think that fits my problem.
>
> Can I ask an extention question?
>
> My goal is to map the texture onto the face model and crop it. I'd like to
> get a smaller model and a corresponding smaller texture covers the same
> area
> as the model. Like I described before, I need to crop the face model into a
> smaller one, so the texture image after cropping should cover from left
> cheek to right cheek and from chin to eyebrows as well.
>
> My question is, would the result model adjust its texture coordinates
> automatically? Because after the cropping, the point index could be
> different from the original ones. For example, in original model the point
> at the nose tip could have the ID 123. But as the model is cropped, the
> order of the point at nose tip could be changed to ID 100. That means the
> texture coordinates in the original model expires.
>
> Thank you very much for your kindly help. I do appreciate it a lot.
>
> Best wishes
> Wenlong
>

I'd suggest starting a new email thread mentioning texture mapping in the
title. Unfortunately I don't know the answer to your question.

David
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