1 效果预览

可将以下代码复制到Echarts示例在线预览效果

2 实现代码

const categories = [{name: '数据中心',symbol:'path://M936.33 732.203c-9.872-10.814-23.349-17.123-37.953-17.778-14.849-0.451-28.613 4.383-39.427 14.255-0.215 0.195-0.282 0.476-0.492 0.673l-144.256-83.448c0.625-2.939 1.994-5.635 2.133-8.697 0.676-14.624-4.383-28.634-14.255-39.448-20.379-22.284-55.096-23.841-77.401-3.523-22.305 20.4-23.882 55.096-3.502 77.421 7.932 8.707 18.534 13.533 29.878 15.799l17.069 160.864c-5.049 2.466-10.138 4.9-14.422 8.82-23.964 21.875-25.643 59.192-3.769 83.156 11.593 12.699 27.507 19.13 43.483 19.13 14.173 0 28.408-5.08 39.673-15.361 11.613-10.61 18.393-25.111 19.109-40.8 0.264-5.807-1.162-11.301-2.527-16.782l114.101-74.264c8.695 6.485 18.549 11.122 29.627 11.618 0.86 0.041 1.7 0.082 2.56 0.082 13.682 0 26.688-5.039 36.867-14.337 22.307-20.359 23.863-55.096 3.504-77.38z m-92.616 24.03c-2.588 10.576-2.855 21.552 0.968 31.893l-109.7 71.397c-9.88-10.018-22.696-16.007-36.719-17.202l-16.624-156.665a54.739 54.739 0 0 0 16.898-10.515c0.637-0.579 0.891-1.421 1.498-2.025l143.679 83.117z m-206.233-122.63c0.287-6.431 3.072-12.412 7.824-16.754a24.194 24.194 0 0 1 16.304-6.308c6.575 0 13.108 2.663 17.86 7.865 4.342 4.752 6.575 10.937 6.288 17.41-0.287 6.431-3.072 12.371-7.824 16.713h-0.021c-4.793 4.342-11.081 6.964-17.409 6.308-6.431-0.287-12.371-3.072-16.713-7.824-4.364-4.752-6.596-10.937-6.309-17.41z m74.963 287.851c-11.47 10.528-29.432 9.708-39.898-1.802-10.487-11.511-9.688-29.412 1.802-39.898 5.243-4.793 11.961-7.414 19.028-7.414 0.43 0 0.86 0.041 1.29 0.041 7.537 0.328 14.501 3.605 19.581 9.176 5.1 5.571 7.701 12.781 7.353 20.318-0.328 7.536-3.585 14.5-9.156 19.579z m199.738-134.483c-4.772 4.342-10.61 6.185-17.389 6.308-6.452-0.328-12.391-3.113-16.754-7.865-8.971-9.831-8.275-25.152 1.557-34.123a24.057 24.057 0 0 1 16.263-6.308c6.554 0 13.108 2.663 17.86 7.865 4.363 4.752 6.595 10.937 6.308 17.369-0.287 6.472-3.072 12.412-7.845 16.754z,M151.81 219.064v18.751c65.713 49.346 192.006 82.731 337.007 82.731s271.291-33.385 337.005-82.731v-18.751c-57.667 50.36-186.873 85.432-337.005 85.432-150.134 0-279.341-35.072-337.007-85.432zM488.817 63.779c-221.567 0-401.197 71.858-401.197 160.48V721.72h2.025c20.146 81.105 191.141 144.432 399.172 144.432 24.529 0 32.095-2.058 55.411-3.746l0.023-31.962c-23.252 1.598-30.838 3.61-55.434 3.61-203.85 0-369.102-57.477-369.102-128.382V608.14c61.194 57.349 203.387 97.532 369.102 97.532 20.51 0 40.664-0.614 60.344-1.802l1.249-32.051a1057.38 1057.38 0 0 1-61.594 1.779c-203.85 0-369.102-57.477-369.102-128.382v-97.555c61.194 57.349 203.387 97.555 369.102 97.555s307.908-40.206 369.079-97.555v175.217l32.095-0.545V224.259c0.001-88.622-179.609-160.48-401.173-160.48z m369.079 320.957c0 70.908-165.229 128.382-369.079 128.382s-369.102-57.474-369.102-128.382v-97.555c61.194 57.352 203.387 97.555 369.102 97.555s307.908-40.203 369.079-97.555v97.555z m-369.079-32.095c-203.85 0-369.102-57.477-369.102-128.382 0-70.908 165.252-128.385 369.102-128.385s369.079 57.477 369.079 128.385c0 70.905-165.229 128.382-369.079 128.382z',symbolSize: 60,itemStyle: {color: '#e66b69'}},{name: '网关',symbol:'path://M600.255321 133.164178c120.213708 0 219.218733 68.021482 232.313549 155.527628h21.531936c-6.225171-97.884819-117.4874-175.858037-253.843452-175.858037S352.637041 190.806986 346.411869 288.691806h21.529903c13.094816-87.506146 112.099841-155.527628 232.313549-155.527628z,M600.255321 436.760206c-120.213708 0-219.218733-68.021482-232.313549-155.527627H346.409836c6.225171 97.884819 117.4874 175.858037 253.843452 175.858036s247.620314-77.973217 253.843452-175.858036h-21.531936c-13.09075 87.504113-112.095775 155.527628-232.309483 155.527627z,M346.125211 741.541498c0 101.900075 113.7771 184.508626 254.13011 184.508625 140.350978 0 254.130111-82.60855 254.130111-184.508625v-444.199103c0-2.901149-0.103685-5.784001-0.286659-8.650589h-21.531936c0.971794 6.4854 1.486153 13.076519 1.486153 19.757091v421.988131c0 96.803242-104.675176 175.282686-233.799702 175.282686s-233.799702-78.479444-233.799701-175.282686V308.448897c0-6.680572 0.516392-13.269658 1.486152-19.757091h-21.529903a135.835594 135.835594 0 0 0-0.286658 8.650589v444.199103z',symbolSize: 60,itemStyle: {color: '#f9bb83'}},{name: '节点',symbol:'path://M1172.985723 682.049233l-97.748643-35.516964a32.583215 32.583215 0 0 0-21.830134 61.582735l25.7398 9.123221-488.744218 238.181638L115.670112 741.349163l47.245961-19.223356a32.583215 32.583215 0 0 0-22.808051-60.604819l-119.579777 47.896905a32.583215 32.583215 0 0 0 0 59.952875l557.820313 251.540496a32.583215 32.583215 0 0 0 27.695632 0l570.527227-278.584184a32.583215 32.583215 0 0 0-3.258721-59.952875z,M1185.041693 482.966252l-191.587622-68.749123a32.583215 32.583215 0 1 0-21.831133 61.254764l118.927833 43.010323-488.744218 237.855666-471.474695-213.744727 116.973-47.244961a32.583215 32.583215 0 1 0-24.111938-60.604819l-190.609705 75.593537a32.583215 32.583215 0 0 0-20.528246 29.650465 32.583215 32.583215 0 0 0 20.528246 30.30141l557.819313 251.866468a32.583215 32.583215 0 0 0 27.695632 0l570.201254-278.584184a32.583215 32.583215 0 0 0 18.24744-30.953354 32.583215 32.583215 0 0 0-21.505161-29.651465z,M32.583215 290.075742l557.819313 251.540496a32.583215 32.583215 0 0 0 27.695632 0l570.201254-278.584184a32.583215 32.583215 0 0 0-3.257721-59.952875L626.244463 2.042365a32.583215 32.583215 0 0 0-23.134022 0l-570.527226 228.080502a32.583215 32.583215 0 0 0-19.224357 30.627382 32.583215 32.583215 0 0 0 19.224357 29.325493zM615.817355 67.534767l474.733416 170.408432-488.744218 238.180638-471.474695-215.372588z',symbolSize: 40,itemStyle: {color: '#6bafed'}},{name: '子节点',symbol:'path://M960 42.666667H64c-12.8 0-21.333333 8.533333-21.333333 21.333333v896c0 12.8 8.533333 21.333333 21.333333 21.333333h896c12.8 0 21.333333-8.533333 21.333333-21.333333V64c0-12.8-8.533333-21.333333-21.333333-21.333333z m-21.333333 896H85.333333V682.666667h853.333334v256z m0-298.666667H85.333333V384h853.333334v256z m0-298.666667H85.333333V85.333333h853.333334v256zM298.666667 768h-42.666667v85.333333h42.666667v-85.333333z m-85.333334 0H170.666667v85.333333h42.666666v-85.333333z m661.333334 21.333333h-170.666667v42.666667h170.666667v-42.666667zM298.666667 469.333333h-42.666667v85.333334h42.666667v-85.333334z m-85.333334 0H170.666667v85.333334h42.666666v-85.333334z m661.333334 21.333334h-170.666667v42.666666h170.666667v-42.666666zM298.666667 170.666667h-42.666667v85.333333h42.666667V170.666667z m-85.333334 0H170.666667v85.333333h42.666666V170.666667z m661.333334 21.333333h-170.666667v42.666667h170.666667V192z',symbolSize: 30,itemStyle: {color: '#4fc5c8'}}
];
let maximum = 1;
const baseStep = 100; // 节点间隔
const links = [];
const data = [{name: categories[0].name,category: categories[0].name,value: [0, 0]},{name: `${categories[1].name}-intranet`,category: categories[1].name,value: [-200, 0],label: {formatter: categories[1].name}},{name: `${categories[1].name}-outernet`,category: categories[1].name,value: [200, 0],label: {formatter: categories[1].name}}
];
let chatHeight = 0const requestData = {intranet: [{in: {name: '节点1-IN'},out: {name: '节点1-OUT',child: [{childId: 'childId1-1',childName: '节点1-1'},{childId: 'childId1-2',childName: '节点1-2'}]}},{in: {name: '节点2-IN'},out: {name: '节点2-OUT',child: [{childId: 'childId2-1',childName: '节点2-1'}]}},{in: {name: '节点3-IN'},out: {name: '节点3-OUT',child: [{childId: 'childId3-1',childName: '节点3-1'},{childId: 'childId3-2',childName: '节点3-2'},{childId: 'childId3-3',childName: '节点3-3'}]}}],outernet: [{in: {name: '节点4-IN'},out: {name: '节点4-OUT',child: [{childId: 'childId4-1',childName: '节点4-1'},{childId: 'childId4-2',childName: '节点4-2'}]}},{in: {name: '节点5-IN'},out: {name: '节点5-OUT',child: [{childId: 'childId5-1',childName: '节点5-1'}]}}]
};
// 动态计算节点位置，让节点均匀分布
const getNodeHeights = (totalNodes, step) => {const heights = [];// 判断是奇数个节点还是偶数个节点const isEven = totalNodes % 2 === 0;for (let i = 0; i < totalNodes; i++) {const rate = i / 2;// 偶数个节点向下取整，奇数个节点向上取整const value = isEven ? Math.floor(rate) : Math.ceil(rate);const height =(value * step + (isEven ? step / 2 : 0)) *(Number.isInteger(rate) ? 1 : -1);heights.push(height);}return heights;
};
// 动态计算图表高度，避免图标重叠
const calculateMaximum = () => {const { intranet, outernet } = requestData;let intranetChildCount = 0;let outernetChildCount = 0;intranet.forEach((item) => (intranetChildCount += item.out.child?.length || 0));outernet.forEach((item) => (outernetChildCount += item.out.child?.length || 0));maximum = Math.max(intranet.length,outernet.length,intranetChildCount,outernetChildCount);// chatHeight = maximum * baseStep
};
const setChildData = (item, nodeOutXY, type) => {if (!item.out.child) return;const childLength = item.out.child.length;const childHeights = getNodeHeights(childLength, baseStep / childLength);item.out.child.forEach((child, childIndex) => {const name = `${child.childName}_${item.out.name}`;const childXY = [(type === 'intranet' ? -1 : 1) * (baseStep * 4),nodeOutXY[1] + childHeights[childIndex]];data.push({// ...child,name,category: categories[3].name,value: childXY,label: {formatter: child.childName}});links.push(...[{source: name,target: item.out.name,lineStyle: {color: 'red'},coords: [childXY, nodeOutXY]},{source: item.out.name,target: name,lineStyle: {color: 'green'},coords: [nodeOutXY, childXY]}]);});
};
const setNodes = (item, baseY, type) => {const flag = type === 'intranet' ? -1 : 1;const nodeData = data[type === 'intranet' ? 1 : 2];// 节点-INconst nodeInXY = [flag * baseStep, baseY];data.push({...item.in,category: categories[2].name,value: nodeInXY});links.push(...[// 节点-IN —— 数据中心{source: item.in.name,target: data[0].name,lineStyle: {color: 'red'},coords: [nodeInXY, data[0].value]},// 节点-IN —— 网关{source: item.in.name,target: nodeData.name,lineStyle: {color: 'red'},coords: [nodeInXY, nodeData.value]},// 数据中心 —— 节点-IN{source: data[0].name,target: item.in.name,lineStyle: {color: 'green'},coords: [data[0].value, nodeInXY]},// 网关 —— 节点-IN{source: nodeData.name,target: item.in.name,lineStyle: {color: 'green'},coords: [nodeData.value, nodeInXY]}]);// 节点-OUTconst nodeOutXY = [flag * baseStep * 3, baseY];data.push({...item.out,category: categories[2].name,value: nodeOutXY});links.push(...[// 节点-OUT —— 网关{source: item.out.name,target: nodeData.name,lineStyle: {color: 'red'},coords: [nodeOutXY, nodeData.value]},// 网关 —— 节点-OUT{source: nodeData.name,target: item.out.name,lineStyle: {color: 'green'},coords: [nodeData.value, nodeOutXY]}]);setChildData(item, nodeOutXY, type);
};
const setNodeData = (nodes, type) => {const nodeHeights = getNodeHeights(nodes.length, baseStep);nodes.forEach((item, index) => {setNodes(item, nodeHeights[index], type);});
};
const setPlaceholderData = () => {if (maximum !== 1) return;// 当只有一条路线时，增加两个不可见节点保持图表居中显示data.push(...[{name: 'placeholder1',value: [0, baseStep],symbolSize: 0,label: {show: false}},{name: 'placeholder2',value: [0, -baseStep],symbolSize: 0,label: {show: false}}]);
};
const getOptions = () => {const { intranet, outernet } = requestData;// 设置内网数据setNodeData(intranet, 'intranet');// 设置外网数据setNodeData(outernet, 'outernet');// 设置占位数据setPlaceholderData();const option = {xAxis: {show: false,type: 'value'},yAxis: {show: false,type: 'value'},series: [{type: 'graph',coordinateSystem: 'cartesian2d',zlevel: 2,// 箭头edgeSymbol: ['circle', 'arrow'],edgeSymbolSize: [1, 8],categories,//圆形上面的文字label: {show: true,position: 'bottom',fontSize: 12},lineStyle: {curveness: 0.05},data,// links},{type: 'scatter',zlevel: 1,data: data.map((item) => ({symbol: 'circle',symbolSize: categories.find((categorie) => categorie.name === item.category)?.symbolSize,value: item.value})),itemStyle: {color: '#ffffff',opacity: 1}},{type: 'lines',coordinateSystem: 'cartesian2d',zlevel: 0,clip: false,effect: {show: true,trailLength: 0,symbol: 'arrow',symbolSize: 6},lineStyle: {// width: 0,curveness: 0.05},data: links.filter((item) => item.coords).map((item) => ({ coords: item.coords, lineStyle: item.lineStyle })) }]};return option;
};
option = getOptions();