code: function getFacesOfDestVertex(edge) {
    var faces = [];
    var previous = edge;
    var first = edge.dest;
    var site = first.originalObject;
    var neighbours = [];
    do {
      previous = previous.twin.prev;
      var siteOrigin = previous.orig.originalObject;
      if (!siteOrigin.isDummy) {
        neighbours.push(siteOrigin);
      }
      var iFace = previous.iFace;
      if (iFace.isVisibleFromBelow()) {
        faces.push(iFace);
      }
    } while (previous !== edge);
    site.neighbours = neighbours;
    return faces;
  }
docs: IN: HEdge edge