两个节点使用manhattan斜着连线时，segments工具不显示

[fu827707013]

Describe the bug

两个节点使用连线时，segments工具不显示，水平连线才显示，但我router使用的是manhattan，是自动变成正交线段组成，都是水平和垂直线段

1. 初始化画布：

const graph = new Graph({
    container: document.getElementById('graph-container')!,
    grid: true,
    connecting: {
        router: 'orth',
        createEdge() {
            return new Shape.Edge({
                attrs: {
                    line: {
                        stroke: '#A2B1C3',
                        strokeWidth: 2,
                        targetMarker: {
                            name: 'block',
                            width: 12,
                            height: 8,
                        },
                    },
                },
                zIndex: 0,
            })
        },
    },
})

2.控制工具显示隐藏

graph.on('edge:mouseenter', ({cell}) => {
    cell.addTools([
        {
            name: 'segments',
            args: {
                attrs: {
                    fill: '#444',
                },
            }
        },
    ], 'segments')
    // cell.addTools(['segments'], 'onhover')
})

Your Example Website or App

无

Steps to Reproduce the Bug or Issue

1. 拖拽两个节点到画布
2. 放置非水平或垂直位置
3. 连接两个节点，连接线自动变成两段正交线段
4. 鼠标移动到线段上，segments工具未显示
   
   在实际业务中如果 流程节点比较多，路线就会交叉，需要拖动线段做些微调

Expected behavior

1. 拖拽两个节点到画布
2. 放置非水平或垂直位置
3. 连接两个节点，连接线自动变成两段正交线段
4. 鼠标移动到线段上，segments工具正常显示

Screenshots or Videos

No response

Platform

• OS: Windows
• Browser: Microsoft Edge
• Version: 版本 131.0.2903.70 (正式版本) (64 位)
• "@antv/x6": "^2.18.1",

Additional context

No response

[x6-bot]

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[fu827707013]

可能不够智能，目前用其他办法解决了