Find nodes on line

Hi all, 

I have imported a line from CATIA, into HyperMesh model (mesh). I need to find using the nodes from the mesh which are located on (near to) that line within certain tolerance.

Is there any Tcl command for this purpose?

At the moment, I can identify the line using its name from metadata, i.e.

*createmark lines 1 'by metadata contains value' TAG  Line_101

 

But I couldn't find any Tcl command for finding the nodes around the line on this mark.

I will be very thankful for any useful information.

 

Best regards,

Mubeen