Creating a flowchart using d3.js is relatively simple. First, you need to create the data structure that will be used to generate the chart. This data should be in the form of a hierarchical JSON ...

Below is the code which help us to achieve the above functionality where user can get data from JSON file or database on click of each individual tree node , depending whether parent have child nodes ...

I`ve tried to find component to visualize data with tree graph, with ability for childs node to have multiple parents. And found one, it is d3 library 'force' layout. But it's very hard to handle ...