[Paraview] Animation. Second view of a field variable. How to format the file.

[Christer Gustafsson]

Hi Dave,

Thank you for your second response on the 12th of September in which you 
pointed out that it is very easy to get the file formats wrong. You also 
sent a full vts example which I copied to a vts file and let ParaView 
display in a 3D window. OK.

Therefore I followed your example and wrote my vts as follows: the 
fileddata (which represents an integrated variable of the system) is now 
put before the first <Piece Extent> in every one of the vts files. This 
takes me a step further, but there is still something that I have not 
got correctly because this is what happens in ParaView:

File/Open/pvd/Apply ---> OK. I see my geometry in the 3D view.
Split Vertical ---> Empty window opens
SpreadSheet View ---> OK
Click eye      ---> Some table opens in second window
Display FieldData ---> OK I see my FieldData in second window
animate ---> OK FieldData value changes

But it is an animated xyPlot that I wish, so I try the xyplot now in 
ParaView:

File/Open/pvd/Apply ---> 3D view opens correctly
Split Vertical ---> Empty window opens
xyPlot View ---> NO EYE

 From here I cannot proceed and I conclude I still do something wrong.  
Now, you also wrote "... make sure you copy the point and cell centred 
data across too". Is this where I fail?

Christer



My vts file(s) as they look now:

<?xml version="1.0"?>
<VTKFile type="StructuredGrid" version="0.1" byte_order="LittleEndian"
         compressor="vtkZLibDataCompressor">
 <StructuredGrid WholeExtent="0 1 0 40 0 91">
  <FieldData>
   <DataArray type="Float32" Name="SF1" NumberOfTuples="1" format="ascii"
              RangeMin="5.204563E+04" RangeMax="5.204563E+04">
    5.204563E+04
   </DataArray>
  </FieldData>
  <Piece Extent="0 1 0 40 0 45">
   <PointData Scalars="Temperature">
    <DataArray type="Float32" Name="Temperature" format="ascii">
  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  
1  1  1  1  1  1  1
  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  
1  1  1  1  1  1  1
[snip]

David E DeMarle wrote:
> You could save K(t) as field data. Then you can extract the zero'th
> entry in the K array (which has just one element) and plot that over
> time. A vts file with field data in it looks something like this...
>
> <VTKFile type="StructuredGrid" [snip]
> <StructuredGrid WholeExtent=[snip]>
> <FieldData>
> <DataArray type="Float64" Name="MyField" NumberOfTuples="1" format="ascii"
> RangeMin="26.1" RangeMax="26.1">
> 26.1
> </DataArray>
> </FieldData>
> [snip]
>
> On Mon, Sep 8, 2008 at 12:30 AM, Christer Gustafsson
> <gustaf at powertech.no> wrote:
>> Hi All,
>>
>> The data (x_i(t),y_i(t),z_i(t)) is formatted as one pvd and many vts 
>> file.
>> The animation runs fine in one 3D view.
>>
>> In addition there is an associated time-varying function (t,K(t)) 
>> (e.g. the
>> kinetic energy of the system). I would like to create a second view and
>> herein animate K(t) along with the 3D view.
>>
>> In what file format (example?) would the (t,K(t)) be cast in order to 
>> make
>> the animations in two views be possible? (The ParaView Guide talks about
>> `unaligned data items' in connection with `Time' in Chapter 10, section
>> 10.3, but from that point on I find no more path).
>>
>> Thanks,
>> ChG
>>
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>