[Paraview] display pressure on box

[Fabian Braennstroem]

Hi,

until recently I always used ensight formatted data files
with several parts, so that I could use the 'Extract parts'
filter to display e.g. the pressure on a special boundary.

Now, when I use ensight files without parts or vtk data
files, the structure looks like:

# vtk DataFile Version 2.0
smc_2
BINARY
DATASET UNSTRUCTURED_GRID

I am obviously not able to extract any parts.

E.g. I want to visualize the pressure data on a cubic
obstacle in a channel flow. Which filter do I have to use?
My idea was to create a box at the obstacle position and
'map' the data on it, but I have no idea how!?

Greetings!
Fabian
--