[Paraview] Create 4D Animation from sets of 3D Data

[Quang Ha]

Hi,

Thank you very much for your reply. It seems that I would have to deal 
with the input data once again.

Is there a way for the surface to be modified in such way that you have 
stated? Would you suggested starting to look at vtk/CGAL codes or 
something similar?

Best regards,
Quang

On 28/07/14 15:46, Moreland, Kenneth wrote:
> Quang,
>
> First before answering your question, let me alert you to an easier 
> way to load your data into ParaView. First, name your files with 
> numbers just before the extension (e.g. left_ventricle_00.stl, 
> left_ventricle_01.stl, left_ventricle_02.stl, etc.). Then just load 
> this file series as one unit (they will be grouped in the ParaView 
> file browser) and ParaView will automatically animate them; no need to 
> add them manually with the Animation View.
>
> Now the bad news. I don't think the Temporal Interpolator is going to 
> work with your data. The Temporal Interpolator needs a way to register 
> where a point in one time step goes to in the next time step. It does 
> this in a very simplistic way by assuming the topology is consistent 
> across time steps. That is, each data set has the exact same triangles 
> listed in the same order connected the same way but at different 
> positions. The surface from your segmentation is surely not of this 
> nature.
>
> -Ken
>
> From: Quang-Thinh Ha <qth20 at cam.ac.uk <mailto:qth20 at cam.ac.uk>>
> Date: Friday, July 25, 2014 11:34 PM
> To: David E DeMarle <dave.demarle at kitware.com 
> <mailto:dave.demarle at kitware.com>>
> Cc: paraview-help <paraview-help at sandia.gov 
> <mailto:paraview-help at sandia.gov>>, "paraview at paraview.org 
> <mailto:paraview at paraview.org>" <paraview at paraview.org 
> <mailto:paraview at paraview.org>>
> Subject: [EXTERNAL] Re: [Paraview] Create 4D Animation from sets of 3D 
> Data
>
> Hi,
>
> Thanks for your reply.
>
> 1) The data sets are all in STL format.
>
> 2) I am not very sure about this. After using text editor to open the 
> mesh file I can say that they are not... Is there anyway to change this?
>
> Quang
>
> On 26 Jul 2014 04:17, David E DeMarle <dave.demarle at kitware.com 
> <mailto:dave.demarle at kitware.com>> wrote:
>
>     1) What file format are the 10 data sets in?
>     2) do all meshes have the same number of points and cells and do
>     the come in the same order in every timstep? temporal
>     interpolation requires a 1:1 correspondence so that it knows what
>     to interpolate between.
>
>
>     On Friday, July 25, 2014, Quang Ha <qth20 at cam.ac.uk
>     <mailto:qth20 at cam.ac.uk>> wrote:
>
>         Hi,
>
>         I have a group of 10 data sets of the left ventricle at
>         different cardiac phases. They have been 3D reconstructed
>         using segmentation method. Now I am trying to use ParaView to
>         see the dynamic changes over different cardiac phases.
>
>         I have been able to get to the View -> Animation mode and add
>         each 3D data at different time, but they only show me a jump
>         from one data to another, rather than 'deforming' into
>         another. I have done some searches on the internet and found
>         someone suggesting the use of 'Temporal Interpolator' but
>         failed to utilise it.
>
>         Would anyone be kind enough to give me some advices on this,
>         please?
>
>         Thanks,
>         Quang
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