zh

通过设置语法糖 direction 为 vertical radial 分别让子节点垂直、径向分布。若不设置 direction，则默认 horizontal 水平分布。 注意，节点标签也会自动根据 direction 排布，当设置 node.style.labelPlacement 时会以后者为准。

en

Use the syntax sugar direction to set the arrangement of child nodes as vertical or radial. If direction is not set, the default is horizontal. Note that the label placement will adjust based on the direction, but if node.style.labelPlacement is set, it takes precedence.