center设置：sourceNode.center = { x: ((cNlen % 20) - 5) * 80, y: (Math.floor(cNlen / 20) - 65) * 10 }，先预设的中心点，设置center的是红色节点，cNlen为红色节点总个数
layout: {
type: 'force2',
preset: {
type: 'radial',
unitRadius: 30,
},
preventOverlap: true,
nodeSize: 80,
nodeSpacing: (d) => {
if (d.center) {
return 100
}
return 1
},
nodeStrength: 200,
centripetalOptions: {
single: 0.7,
leaf: 10,
others: 0.1,
center: (node, nodes, edges, width, height) => {
// 中心节点
if (node.source) {
const sNode = nodes.find((n) => n.id === node.source)
if (sNode.center) {
return { x: sNode.center.x + width / 2, y: sNode.center.y + height / 2 }
} else {
return { x: width / 2, y: height / 2 }
}
}
return { x: width / 2, y: height / 2 }
},
},
},
IssueHunt
