How do I get the nodes associated with a boundary.

Hi,

I have a model (Solid Mechanics). I have one component in that model.

1. I have defined some constraints on some boundaries.
2. I have defined a boundary load as well.
3. I have a mesh (tetrahedral).

I would like to see if I can get the nodes in the mesh that are associated with the boundaries that are constrained and loaded.

My objective is to export the mesh (which I have done successfully) and export the boundary conditions (constraints and loads) to be used in an external solver. I am using the Java API to get the boundaries for the constraints and loads but all I get are boundary numbers and am unable to correlate the boundary numbers to element/node numbers.

Appreciate any help you can give.

Thanks.