Is it possible to have links connected to center of a node without showing the part of the link that overlap (the link should go under the node and connect to center) ?
The default behavior, as shown in GoJS Link Connection Points on Nodes -- Northwoods Software, is that links will point towards the center of the node but stop at the edge. Stopping at the edge is required if you want to have any arrowheads.
If you never want links to cross in front of any nodes, it is easiest to set layerName: "Background" on your link template(s). GoJS Layers -- Northwoods Software
Ok, Will give the layers a try! Thanks!