Function TriangleMeshNode.SharedEdge

int SharedEdge (

GraphNode

other

)

Returns the edge which is shared with other.

If there is no shared edge between the two nodes, then -1 is returned.

The vertices in the edge can be retrieved using var edge = node.SharedEdge(other);
var a = node.GetVertex(edge);
var b = node.GetVertex((edge+1) % node.GetVertexCount());