what does s_vertex_cordinates and d_vertex_coordinates refer to in paper?

[sumeshthakr]

Hi Weijing,
I went through your implementation and in this particular line,

Point-GNN/models/gnn.py

Line 351 in 48f3d79

[s_vertex_features, s_vertex_coordinates - d_vertex_coordinates],

You refer to s_vertex_coordinates as source vertex and d_vertex_coordinates as destination vertex,
So, in my understanding, the following equation(5) in your paper x_i refers to d_vertex_cordinates and x_j refers to s_vertex_coordinates, is that right? or is it the other way around?

Thanks a lot

[WeijingShi]

Hi Sumesh, I think you are correct!