[jason.ryon]

I would like to use libsampling.so to write out data on a surface of constant diameter or a conical surface.

I use libsampling.so to write it on a planar suface, but there are no types that will allow for a constant radius or diameter. Could you help me to write this?

currently in system/controlDict, this is how I do a planar surface, but would like a cylinder:
functions
{
//monitors get inserted here
animate
{
type surfaces;
functionObjectLibs ("libsampling.so");
outputControl outputTime;
surfaceFormat vtk;
interpolationScheme cellPointFace;

fields
(
p
U
);
surfaces
(
aplane
{
type plane;
basePoint (0.0 0.0 0.0);
normalVector (0.0 0.0 1.0);
}
);
}