508 lines
15 KiB
Vue
508 lines
15 KiB
Vue
<template>
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<div id="bridgeCommunityChart" style="width: 100%; height: 100%;"></div>
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</template>
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<script setup>
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import { onMounted, onUnmounted, defineProps, watch, ref, defineEmits } from 'vue';
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import * as echarts from 'echarts';
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import bridgeData from '@/assets/json/bridge_neighbors_communities.json';
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import bridgeNodeHoverBgImg from '@/assets/images/bridge_node_hoverbgimg.png'
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import { useKeyNodeStore2 } from '@/store/keyNodeStore2'; // 引入store
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import { cropToCircleAsync } from "@/utils/transform"; // 引入头像处理
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// 接收父组件传递的timestamp
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const props = defineProps({
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timestamp: {
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type: Number,
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default: 1
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}
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})
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// 新增事件发射器--用于点击社团节点时，通知父组件跳转到社团的详情页
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const emit = defineEmits(['click:navigateToCommunityDetail']);
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let chartInstance = null;
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// 跟踪当前激活的节点ID
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const activeNodeId = ref(null);
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// 用于后续鼠标悬浮桥梁节点高亮
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const nodesData = ref([]);
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const linksData = ref([]);
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// 处理数据生成ECharts所需格式
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const processData = async() => {
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const nodes = [];
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const links = [];
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const addedCommunities = new Set();
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// 新增：存储已处理的桥梁节点ID
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const addedBridgeNodes = new Set();
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// 获取store实例
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const keyNodeStore2 = useKeyNodeStore2();
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// 批量将头像转换成base64
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const bridgeNodes = keyNodeStore2.bridgeNodes;
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// 根据timestamp过滤桥梁节点
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const filteredBridgeNodes = bridgeNodes.filter(node => node.postsId <= props.timestamp);
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for (const node of filteredBridgeNodes) {
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if (node.defImg) {
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node.defImg = await cropToCircleAsync(node.defImg);
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}
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if (node.activeImg) {
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node.activeImg = await cropToCircleAsync(node.activeImg);
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}
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}
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// 找出usersNum的最小值和最大值，用于归一化
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let minUsersNum = Infinity;
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let maxUsersNum = -Infinity;
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// 只处理过滤后的桥梁节点相关的社团
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bridgeData.forEach(item => {
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// 检查当前桥梁节点是否应该被包含
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const isIncluded = filteredBridgeNodes.some(node => node.Node === item.bridgeId);
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if (isIncluded) {
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item.bridgeCommunities.forEach(community => {
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minUsersNum = Math.min(minUsersNum, community.usersNum);
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maxUsersNum = Math.max(maxUsersNum, community.usersNum);
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});
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}
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});
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// 节点大小的范围
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const minNodeSize = 30;
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const maxNodeSize = 50;
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bridgeData.forEach(item => {
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// 检查当前桥梁节点是否应该被包含
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const isIncluded = filteredBridgeNodes.some(node => node.Node === item.bridgeId);
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if (!isIncluded) {
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return;
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}
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const bridgeId = item.bridgeId;
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// 查找对应的桥梁节点图片
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const bridgeNodeInfo = filteredBridgeNodes.find(node => node.Node === bridgeId);
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const isActiveNode = activeNodeId.value === bridgeId;
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const bridgeNodeImg = bridgeNodeInfo ?
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(isActiveNode ? bridgeNodeInfo.activeImg : bridgeNodeInfo.defImg) : '';
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// 添加桥梁节点
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const bridgeNodeId = `bridge_${bridgeId}`;
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nodes.push({
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id: bridgeNodeId,
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category: 0,
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symbol: bridgeNodeImg ? `image://${bridgeNodeImg}` : 'circle',
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symbolSize: 100,
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originalId: bridgeId // 存储原始ID用于识别
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});
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addedBridgeNodes.add(bridgeId);
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// 添加社团节点和边
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item.bridgeCommunities.forEach(community => {
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const communityId = community.communityId;
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const userNumofCommunity = community.usersNum
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const communityKey = `community_${communityId}_${userNumofCommunity}`;
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const usersNum = community.usersNum;
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// 归一化usersNum到节点大小范围
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const size = minNodeSize +
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((usersNum - minUsersNum) / (maxUsersNum - minUsersNum)) *
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(maxNodeSize - minNodeSize);
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// 添加社团节点（对于已有的社团不重复添加）
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if (!addedCommunities.has(communityKey)) {
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nodes.push({
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id: communityKey,
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category: 1,
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symbolSize: size
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});
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addedCommunities.add(communityKey);
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}
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// 添加社团与桥梁的边
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links.push({
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source: bridgeNodeId,
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target: communityKey,
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value: 1
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});
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})
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// 添加桥梁节点之间的边
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if (item.bridgeNeighbours && item.bridgeNeighbours.length > 0) {
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item.bridgeNeighbours.forEach(neighborBridgeId => {
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// 检查邻居桥梁节点是否已处理
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if (addedBridgeNodes.has(neighborBridgeId)) {
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const neighborBridgeNodeId = `bridge_${neighborBridgeId}`;
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// 添加桥梁到桥梁的边
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links.push({
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source: bridgeNodeId,
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target: neighborBridgeNodeId,
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value: 2, // 用不同的value区分桥梁间的边和桥梁-社团的边
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lineStyle: {
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color: '#ff7300', // 桥梁间的边使用不同颜色
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width: 2
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}
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});
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}
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});
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}
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})
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const result = { nodes, links };
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nodesData.value = nodes;
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linksData.value = links;
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return result;
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};
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// 初始化图表
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const initChart = async() => {
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if (chartInstance) {
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chartInstance.dispose();
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}
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const chartDom = document.getElementById('bridgeCommunityChart');
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if (!chartDom) return;
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chartInstance = echarts.init(chartDom);
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// 添加鼠标悬浮事件监听
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chartInstance.on('mouseover', function(params) {
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if (!params.data) return;
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const isBridgeNode = params.data.category === 0;
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const isCommunityNode = params.data.category === 1;
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if (isBridgeNode) {
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// 如果是桥梁节点
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const nodeId = params.data.originalId;
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// 无论当前是否有激活节点，都设置为当前节点
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activeNodeId.value = nodeId;
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updateNodeImage(nodeId, true);
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}
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});
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// 添加鼠标离开事件监听
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chartInstance.on('mouseout', function(params) {
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if (!params.data) return;
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const isBridgeNode = params.data.category === 0;
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const isCommunityNode = params.data.category === 1;
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if (isBridgeNode) {
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// 如果是桥梁节点
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const nodeId = params.data.originalId;
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if (activeNodeId.value === nodeId) {
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activeNodeId.value = null;
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updateNodeImage(nodeId, false);
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}
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}
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});
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// 添加点击事件监听
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chartInstance.on('click', function(params) {
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if (params.data && params.data.category === 0) {
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// 如果是桥梁节点
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const nodeId = params.data.originalId;
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// 获取store实例
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const keyNodeStore2 = useKeyNodeStore2();
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// 查找对应的leader数据
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const leader = keyNodeStore2.allLeaderData.find(l => l.nodeId === nodeId);
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if (leader) {
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// 打开leader详情弹窗
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keyNodeStore2.openLeaderDetail({
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id: leader.id
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});
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}
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} else if(params.data && params.data.category === 1) {
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// 如果是社团节点
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// 提取社团ID
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const communityId = params.data.id.split('_')[1];
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console.log("点击社团节点：", communityId);
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// 触发跳转事件
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emit('click:navigateToCommunityDetail', communityId);
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}
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});
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const { nodes, links } = await processData();
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const categories = [
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{name: "桥梁节点", category: 0},
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{name: "普通社团", category: 1}
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]
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const option = {
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//hover上去的窗口
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tooltip: {
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trigger: "item",
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trigger: "item",
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backgroundColor: "rgba(0,0,0,0)", // 透明背景
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borderColor: "rgba(0,0,0,0)", // 透明边框
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borderWidth: 0,
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extraCssText: "box-shadow:none;padding:0;",
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textStyle: {
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color: '#fff', // 设置字体颜色为白色
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fontSize: 14,
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},
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formatter: function(params) {
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// 如果是边，则不显示提示框
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if (params.dataType === 'edge') {
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return '';
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}
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// 判断节点类型
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if(params.data.category === 1) {
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// 社团节点
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const parts = params.data.id.split('_');
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const extractedUserNum = parseInt(parts[parts.length - 1], 10);
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return `<div
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style = "
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width: 126px;
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height: 44px;
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border-radius: 4px;
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background: url('${bridgeNodeHoverBgImg}');
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background-size: cover;
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background-position: center;
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background-repeat: no-repeat;
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display: flex;
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align-items: center;
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justify-content: center;
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flex-direction: column;
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">
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<div style="color:#fff;letter-spacing: 0.14px;">
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社团用户数：${extractedUserNum}
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</div>
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</div>`;
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}else {
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// 桥梁节点
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// 查找对应的bridgeCommunities长度
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const bridgeItem = bridgeData.find(item => item.bridgeId === (params.data.id || '').replace('bridge_', ''));
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const communityCount = bridgeItem ? bridgeItem.bridgeCommunities.length : 0;
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return `<div
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style = "
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width: 126px;
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height: 44px;
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border-radius: 4px;
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background: url('${bridgeNodeHoverBgImg}');
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background-size: cover;
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background-position: center;
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background-repeat: no-repeat;
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padding:20px 20px;
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display: flex;
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align-items: center;
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justify-content: center;
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flex-direction: column;
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">
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链接社团数：${communityCount}
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</div>`;
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}
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},
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},
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//图例配置
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legend: [
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{
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data: categories.map((c) => ({
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name: c.name,
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// 锚点账号用圆形头像，普通账号保持默认
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// 添加自定义图标
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icon: c.category === 0
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? `image://${new URL('@/assets/images/icon/bridge_node_legend.png', import.meta.url)}`
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: `image://${new URL('@/assets/images/icon/community_node_legend.png', import.meta.url)}`
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})),
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right: 15,
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bottom: 13,
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icon: "circle",
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orient: "vertical",
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itemWidth: 16,
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itemHeight: 16,
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itemGap: 12,
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backgroundColor: "rgba(0,67,125,0.56)", // 半透明深蓝
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borderRadius: 8, // 圆角
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borderColor: "#c2f2ff", // 淡蓝色边框
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borderWidth: 0.3,
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padding: [12, 20, 12, 20], // 上右下左
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textStyle: {
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color: "#fff",
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fontSize: 16,
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fontWeight: "normal"
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}
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}
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],
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series: [
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{
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type: 'graph',
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zoom: 0.1,
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layout: 'force',
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force: {
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// 节点间的排斥力，越大越疏散
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repulsion: 50000,
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// 连线长度，数值越大越分散
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edgeLength: [800,6000],
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// 全局吸引力，越小越松散
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gravity: 0.8,
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// 节点阻尼（摩擦），越小越灵活
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friction: 0.2,
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},
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animation: false,
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draggable: true,
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data: nodes,
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links: links,
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categories: [
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{
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name: '桥梁节点',
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itemStyle: {
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// 节点颜色
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color: '#ff7300',
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},
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},
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{
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name: '普通社团',
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itemStyle: {
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// 节点颜色
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color: new echarts.graphic.RadialGradient(0.98, 0.38, 0.9, [
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{ offset: 1, color: "#1a3860" }, // 最左侧
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{ offset: 0.5, color: "#38546b" }, // 中间
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{ offset: 0, color: "#5fb3b3" } // 最右侧
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]),
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opacity: 0.8,
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// 边框样式
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borderColor: '#2AB9FE',
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borderWidth: 1,
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borderType: 'dashed',
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borderImageSource: 'linear-gradient(90deg, #2AB9FE 12.25%, #52FFF3 100.6%)',
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borderImageSlice: 1,
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},
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}
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],
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roam: true,
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lineStyle: {
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// color: '#50AAD6',
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color: new echarts.graphic.LinearGradient(1, 0, 0, 0, [
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{ offset: 0, color: '#233144' },
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{ offset: 0.9, color: '#0578b0' }
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]),
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curveness: 0,
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with: 2,
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type: 'solid',
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opacity: 0.5,
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},
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animationDurationUpdate: 3500, // 节点移动更平滑
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animationEasingUpdate: 'quinticInOut',
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emphasis: { // 高亮配置
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focus: 'adjacency', // 高亮相邻节点
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blurScope: 'coordinateSystem', // 失去焦点时取消所有高亮
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lineStyle: { // 高亮时线条样式
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width: 10 // 线条宽度(10)
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}
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},
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}
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]
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};
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chartInstance.setOption(option);
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};
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// 更新节点图片的方法
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const updateNodeImage = (bridgeId, isActive) => {
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// 查找对应的桥梁节点信息
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const keyNodeStore2 = useKeyNodeStore2();
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const filteredBridgeNodes = keyNodeStore2.bridgeNodes.filter(node => node.postsId <= props.timestamp);
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// 创建新的节点数据数组（避免直接修改响应式数据）
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const newNodes = [...nodesData.value];
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// 先重置所有节点为默认图片
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if (isActive) {
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newNodes.forEach((node, index) => {
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if (node.category === 0) { // 只处理桥梁节点
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const nodeInfo = filteredBridgeNodes.find(n => n.Node === node.originalId);
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if (nodeInfo && node.originalId !== bridgeId) {
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newNodes[index].symbol = nodeInfo.defImg ? `image://${nodeInfo.defImg}` : 'circle';
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}
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}
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});
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}
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// 更新当前节点
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const bridgeNodeInfo = filteredBridgeNodes.find(node => node.Node === bridgeId);
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if (bridgeNodeInfo) {
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// 找到要更新的节点索引
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const nodeIndex = nodesData.value.findIndex(node => node.originalId === bridgeId);
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if (nodeIndex !== -1) {
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// 创建新的节点数据数组（避免直接修改响应式数据）
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const newNodes = [...nodesData.value];
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// 更新节点图片
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const imgUrl = isActive ? bridgeNodeInfo.activeImg : bridgeNodeInfo.defImg;
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newNodes[nodeIndex].symbol = imgUrl ? `image://${imgUrl}` : 'circle';
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chartInstance.dispatchAction({
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//再让单独一个高亮
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type: "highlight",
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dataIndex: nodeIndex
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});
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// 使用setOption进行增量更新
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chartInstance.setOption({
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series: [{
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data: newNodes
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}]
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});
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// 更新nodesData（保持数据一致性）
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nodesData.value = newNodes;
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}
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}
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};
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// 添加highlightNode方法
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const highlightNode = (leaderId) => {
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// 查找对应的桥梁节点ID
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const keyNodeStore2 = useKeyNodeStore2();
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const leader = keyNodeStore2.allLeaderData.find(l => l.id === leaderId);
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if (leader) {
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// 先重置之前的激活节点
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if (activeNodeId.value) {
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updateNodeImage(activeNodeId.value, false);
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}
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// 设置新的激活节点
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activeNodeId.value = leader.nodeId;
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updateNodeImage(leader.nodeId, true);
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}
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};
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onMounted(() => {
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setTimeout(async () => {
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await initChart();
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}, 100);
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window.addEventListener('resize', () => {
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if (chartInstance) {
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chartInstance.resize();
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}
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});
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});
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watch(
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() => props.timestamp,
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async (newValue) => {
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await initChart()
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}
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)
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onUnmounted(() => {
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if (chartInstance) {
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chartInstance.dispose();
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chartInstance = null;
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}
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window.removeEventListener('resize', () => {});
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});
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// 暴露highlightNode方法
|
||
defineExpose({ highlightNode });
|
||
</script>
|
||
|
||
<style scoped>
|
||
#bridgeCommunityChart {
|
||
width: 100%;
|
||
height: 600px;
|
||
}
|
||
</style> |