[Paraview] deforming sphere-like grid to object

[Utkarsh Ayachit]

Another alternative.

- create a filter that deforms the sphere up to a specific iteration
"N". This filter will have a "property" to set the current iteration
number.
- setup an animation to change the iteration number.

(assuming deforming to an arbitrary iteration is just as expensive as
going to a i+1 iteration).

Utkarsh

On Thu, May 21, 2015 at 4:05 AM, Christopher Snyder <22csnyder at gmail.com> wrote:
> Edit:
>
> After doubling the amount of lifetime experience with paraview or vtk since
> my last email, I think what I ought to do is create a filter that does a
> single iteration of shape deformation. Then I'll create a script that
> alternates "calling this filter" and rendering 500 times or so.
>
> Let me know if that sounds incongruous with how Paraview works.
>
> Background Idea:The points on the initial sphere should deform in a way that
> minimizes the total 'energy' of the blob: edges should coincide with sharp
> contrast in the background volume; surface normals should be minimial.
>
> Thanks again,
> Chris
>
> On Wed, May 20, 2015 at 11:48 PM, Christopher Snyder <22csnyder at gmail.com>
> wrote:
>>
>> Hi all,
>>
>>
>> Here's what I'd like to do using python scripting.
>> 1) Initialize a set of points and edges that "look like a sphere" using
>> sphere=Sphere()
>> 2) deform that set of points (and edges) to match a volume whose high
>> intensity region is also blob-like using an active shape model
>> 3) visualize the evolution of the sphere deformation using paraview.
>>
>> I only tell you so you can stop me if I'm doing this in a suboptimal way.
>>
>> My immediate question is simply how can I extract/change the coordinates
>> of a Sphere() object? Are the points of a "sphere" object constrainted to
>> forever occupy a sphere shape?
>>
>> Best,
>> Chris
>>
>
>
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