[vtkusers] vtkThreshold doc problem

[ycollette.nospam at free.fr]

Hello,

I've got a little problem with the use of vtkThreshold and specially with the SetInputArrayToProcess parameters.

int idx: ?
int port: ?
int connection: ?
int fieldAssociation: ?
const char * name: the name of the vtkarray to process

For the other parameters, I've put 0 and my test works.
I looked into the python examples of the vtk source, but no examples with parameters different from 0 for 'port' and 'connection'.

Can somebody explain to me what are the use of 'port', 'connection' and 'idx' ?

Best regads,

YC