access to field data
 

hey

I'm working on a interpolationScheme based on upwindFitScheme and want to manipulate some things in the return value.

There I've got to access the velocity components for each direction seperately and this don't work.

What's the reason for?
I checked the hole way from icoFoam to the scheme and with beginning in gaussConvectionScheme access is forbidden.

Of Course I can take U as lookupObject, but this would cause trouble with the return type...
Can you help me?
thanks