d3.js - Nodes on force graph links in d3.js

Question

I am trying to create a force graph with nodes on the links between main nodes (O--o--O), similar to this visualization: http://www.nytimes.com/interactive/2013/02/20/movies/among-the-oscar-contenders-a-host-of-connections.html:

More specifically, I would like the links between nodes to start and stop at a main node (O), with a link node (o) at the midpoint. Is there a straightforward way to achieve this?

Answer 1

通常：在网络数据结构中创建两个类或节点类别（“main”、“midpoint”），并根据类成员有条件地设置节点的半径和其他样式属性。