why the chart always going down

[q640202047]

The key code is the same as the example.but the chat always going down.

<tree :data="d3treeData" node-text="name" layoutType="circular"></tree>

data: () => {
       d3treeData: {
            name: "father",
            children:[{
            name: "son1",
            children:[ {name: "grandson"}, {name: "grandson2"}]
            },{
            name: "son2",
            children:[ {name: "grandson3"}, {name: "grandson4"}]
            }]
        },
}

[David-Desmaisons]

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