请问，我该如何判断某个节点是否被连线了？

[qq12157138]

Describe the feature you'd like to request

需求：节点A、节点B，节点A连线了节点B，如果有连线节点B删除的时候要带着节点A一起删除。
效果：我删除节点B的时候如何知道节点B是否被连线了？连线的源头又是哪个？

Describe the solution you'd like

我删除节点B的时候如何知道节点B是否被连线了？连线的源头又是哪个？

Describe alternatives you've considered

看API好像没合适的方法。这个我从哪个方面去找呢

Your Example Website or App

No response

Screenshots or Videos

No response

[snail88]

https://x6.antv.antgroup.com/api/mvc/model#getoutgoingedges

[xingke55]

const edges = graph.model.getIncomingEdges(nodeB)
for(let edge of edges){
let source =edge.getSourceCell()

}

[x6-bot]

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