Laplacian in Kangaroo

Kangaroo contains a Laplacian force component, which allows for cotangent weighting The literature I’ve been looking at uses this type of operator to calculate a Laplacian on a mesh, where each vertex is assigned the value of some function. In the Kangaroo example provided by Daniel Piker, its used to average spring forces at a vertex, Is there any way to adapt this to actually inputting function values instead of spring constants? Thanks.

http://api.ning.com/files/6208bhnkZZXKhrQRUl3JXQHaSz5iYDdWgzVWGCtf-EanB2h6oMDhGdnKegV4XpBzHVOv89YuM0NbOOoUisP76-*8aUg4VIcR/laplacian_demo1.ghx