Tensor data

[Victor ALDEA]

At 01:35 PM 9/2/99 -0700, Paul Hsieh wrote:
>Victor: I have two suggestions. There is an example called TenEllip.tcl in 
>the graphics/examplesTcl directory. This code generates its own tensor
>data using vtkPointLoad and then displays the tensor data as ellipses.
>This might give you an idea on how to display your tensor data.

Thank you for your help!
I have tried the example and it works. I will try the idea of writing the
output from vtkPointLoad to a file and compare the tensor data.

Thanks,

	Victor

>Also you can use vtkPointLoad to generate a set of tensor data and then
>write it to file. You can compare this file with your own data file and
>check that your tensor data are properly formatted. Good luck. Paul
>
>
>Victor ALDEA wrote:
>> 
>>         Hello,
>> 
>>         I am trying to visualise an UnstructuredGrid dataset format
using Vtk2.4
>> under Win95. I have no problem doing this as long as the dataset atributes
>> are "Scalars" or "Vectors". As soon as the file contains the "Tensors"
>> field (I'm trying to visualise a StressTensor 3x3), the code dumps core. I
>> have tried the simpliest code (which follow) but with the same result. If I
>> remove the "Tensors" data, everything is OK. The "tensors" field format
>> look as presented in "VTK User's Guide" and I did not find an example on
>> how to visualise tensor data.
>> 
>>         vtkUnstructuredGridReader reader$filename
>>            reader$filename SetFileName $filename
>>         vtkDataSetMapper parisonMapper$filename
>>            parisonMapper$filename SetInput [reader$filename GetOutput]
>>            parisonMapper$filename ScalarVisibilityOff
>>     vtkActor Actor$filename
>>            Actor$filename SetMapper parisonMapper$filename
>> 
>>            Renderer AddActor Actor$filename
>> 
>>         Can somebody help me with this problem( maybe somebody has an
example)?
>>         Thank you,
>> 
>>         Victor
>> -----------------
>> Victor ALDEA
>> 
>>
-----------------------------------------------------------------------------
>> This is the private VTK discussion list.  Please keep messages on-topic.
>> Check the FAQ at: <http://www.automatrix.com/cgi-bin/vtkfaq>
>> To UNSUBSCRIBE, send message body containing "unsubscribe vtkusers" to
>> <majordomo at gsao.med.ge.com>.  For help, send message body containing
>> "info vtkusers" to the same address.     Live long and prosper.
>>
-----------------------------------------------------------------------------
>
>
-----------------
Victor ALDEA


-----------------------------------------------------------------------------
This is the private VTK discussion list.  Please keep messages on-topic.
Check the FAQ at: <http://www.automatrix.com/cgi-bin/vtkfaq>
To UNSUBSCRIBE, send message body containing "unsubscribe vtkusers" to
<majordomo at gsao.med.ge.com>.  For help, send message body containing
"info vtkusers" to the same address.     Live long and prosper.
-----------------------------------------------------------------------------