javascript - 为多级树实现 d3-2way-tree

Question

我指的是 d3 小部件，d3 2 way tree 。我希望树在顶部和底部都进一步生长，我无法为其形成 json 数据。

Answer 1

在以下 JSON 中，我向父级添加了两个节点，向子级添加了两个节点:

{
    "name": "Airlines",
    "parents": [
        {
            "name": "Aviation",
            "isparent": true
        },
        {
            "name": "Transparent_companies",
            "isparent": true
        },
        {
            "name": "Transport_operators",
            "isparent": true,
            "parents": [
                { 
                    "name" : "parent-foo1",
                    "isparent" : true
                },
                { 
                    "name" : "parent-foo2",
                    "isparent" : true
                }
            ]
        }
    ],
    "children": [
        {
            "name": "Airline_alliances",
            "isparent": false
        },
        {
            "name": "Airlines_by_continent",
            "isparent": false
        },
        {
            "name": "Airlines_by_type",
            "isparent": false,
            "children": [
                { 
                    "name" : "children-foo1",
                    "isparent" : false
                },
                { 
                    "name" : "children-foo2",
                    "isparent" : true
                }
            ]
        },
        {
            "name": "Defunct_airlines",
            "isparent": false
        }
    ]
}