How do you create a family tree in d3.js?

Question

I'm currently working on a small genealogy experiment and would like to implement a simple family tree like in the picture below.

The best search results so far for this only yielded examples where a child can only have a parent node. But what I need is the ability to create links between entities (from father to mother) and links between nodes and other links (from child to the father-mother link). Currently I don't have a fixed data schema for this.

I've chosen d3.js for this because it looks like would be capable of doing the job. I just don't know how or even where to start. Tutorials about d3.js only cover standard charts like bar charts.

I hope someone can help me with this.

Answer 1

I tried dtree and liked it. However, when you add several generations, the horizontal display can make the overall display very large and unwieldy. Instead, I used the Reingold–Tilford Tree. One disadvantage of this tree is each node can have only one parent: spouses cannot be displayed alongside each other: To get past this limitation, I tweaked the JSON to combine spouses into one entity (ex: "husband - wife" ) just before sending it to the tree.