278 lines
7.3 KiB
Vue
278 lines
7.3 KiB
Vue
<template>
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<div v-if="visible">
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<svg id="mySvg" v-if="visible"></svg>
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</div>
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</template>
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<script>
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import dagreD3 from "dagre-d3";
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import * as d3 from "d3";
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export default {
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name: "degraD3",
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props: {
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nodes: {
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type:Array,
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default:()=>[]
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},
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edges:{
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type:Array,
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default:()=>[]
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},
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rankdir:{
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type: String,
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default: "DL",
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}
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},
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data() {
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return {
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g:null,
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visible:false,
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isSaving: false,
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type:""
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};
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},
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watch: {
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nodes: {
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handler(val) {
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console.log(val);
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this.updateGraph();
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},
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deep: true,
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},
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edges: {
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handler(val) {
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console.log(val);
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this.updateGraph();
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},
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deep: true,
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},
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},
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mounted() {},
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methods: {
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open(){
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this.visible = true;
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this.handleWatch();
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},
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handleWatch() {
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let that = this;
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that.$nextTick(() => {
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if(that.g!==null){
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that.updateGraph();
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}else{
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that.g = new dagreD3.graphlib.Graph({multigraph: true}).setGraph({
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rankdir: that.rankdir,
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nodesep: 40,
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edgesep: 25, //两条线之间的距离
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ranksep: 20, //节点之间的距离
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marginx: 80,
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marginy: 10,
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});
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// 添加节点
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that.nodes.forEach((item) => {
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if(item.id&& item.label){
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that.g.setNode(item.id, {
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// 节点标签
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label: item.label,
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// 节点形状
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shape: item.shape,
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toolText: item.label,
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//节点样式
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style: "fill:#fff;stroke:#000",
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labelStyle: "fill:#000;",
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rx: 5, //矩形节点圆角度
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ry: 5,
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});
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}
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});
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//流转得到线 链接关系
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that.edges.forEach((transition0) => {
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that.g.setEdge(transition0.source,transition0.target,{
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label: transition0.label,// 边标签
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id: transition0.id,
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style: "fill:#ffffff;stroke:#c0c1c3;stroke-width:1.5px", // 根据后台数据来改变连线的颜色
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},transition0.id);
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});
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// 创建渲染器
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let render = new dagreD3.render();
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// 选择 svg 并添加一个g元素作为绘图容器.
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let svg = d3.select("#mySvg");
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let inner = svg.append("g");
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that.inner = inner;
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// 在绘图容器上运行渲染器生成流程图.
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render(inner, that.g);
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let mySvgHeight =document.getElementsByClassName("nodes")[0].getBoundingClientRect().height + 50;
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let mySvgWdith =document.getElementsByClassName("output")[0].getBoundingClientRect().width+150 ;
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document.getElementById('mySvg').setAttribute("height", mySvgHeight);
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document.getElementById('mySvg').setAttribute("width", mySvgWdith);
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svg.selectAll("g.node").on("click", function(event, d) {
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svg.selectAll("g.node").style("fill", "white");
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svg.selectAll("g.node")._groups[0].forEach(item=>{
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console.log('item',item);
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d3.select(item).select("rect").style("fill", "#fff"); // 修改为白色
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})
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// 改变节点的颜色
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const node = d3.select(this);
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const currentColor = node.select("rect").style("fill")
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// 判断当前颜色，如果是默认颜色，就修改为新的颜色
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if (currentColor === "rgb(255, 255, 255)") { // 如果当前是白色
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node.select("rect").style("fill", "#f00"); // 修改为红色
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} else {
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node.select("rect").style("fill", "#fff"); // 否则恢复白色
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}
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// 调用自定义方法
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onNodeClick(d);
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});
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// 自定义方法：在节点点击时触发
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function onNodeClick(nodeData) {
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let batch = "";
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that.nodes.forEach((item) => {
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if (item.id === nodeData){
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batch = item.label;
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}
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})
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that.$emit("nodeClick", batch);
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// 你可以在这里处理更多的逻辑，例如显示一个提示框，更新图形状态等
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}
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}
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})
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},
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// 假设你有一个方法来更新节点和边的数据
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updateGraph() {
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let that = this;
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// 清空现有图形
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that.g.nodes().forEach(function (v) {
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that.g.removeNode(v);
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});
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that.g.edges().forEach(function (e) {
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that.g.removeEdge(e);
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});
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// 重新添加节点
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that.nodes.forEach((item) => {
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if (item.id && item.label) {
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that.g.setNode(item.id, {
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label: item.label,
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shape: item.shape,
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toolText: item.label,
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style: "fill:#fff;stroke:#000",
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labelStyle: "fill:#000;",
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rx: 5,
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ry: 5,
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});
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}
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});
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// 重新添加边
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that.edges.forEach((transition0) => {
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that.g.setEdge(transition0.source, transition0.target, {
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label: transition0.label,
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style: "fill:#ffffff;stroke:#c0c1c3;stroke-width:1.5px",
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});
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});
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let render = new dagreD3.render();
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// 渲染更新后的图形
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render(that.inner, that.g);
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// 获取新的 SVG 尺寸
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let mySvgHeight = document.getElementsByClassName("nodes")[0]?.getBoundingClientRect().height + 50;
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let mySvgWdith = document.getElementsByClassName("output")[0]?.getBoundingClientRect().width + 150;
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// 检查节点和边的容器是否存在
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if (mySvgHeight && mySvgWdith) {
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// 设置 SVG 尺寸
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document.getElementById('mySvg').setAttribute("height", mySvgHeight);
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document.getElementById('mySvg').setAttribute("width", mySvgWdith);
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} else {
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console.log("元素尚未加载，无法更新 SVG 尺寸");
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}
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},
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scaleUp() {
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var svg = document.getElementById("mySvg");
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svg.style.transform = "scale(0.5)";
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}
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},
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};
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</script>
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<style scoped>
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.treeMain {
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height: 280px;
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overflow: auto;
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border: 1px solid #dcdfe6;
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margin-bottom: 10px;
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}
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::-webkit-scrollbar {
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width: 10px;
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}
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::-webkit-scrollbar-track {
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-webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.2);
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background-color: #fefefe;
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border-radius: 5px;
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}
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::-webkit-scrollbar-thumb {
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border-radius: 5px;
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-webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.5);
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background-color: #f5f5f5;
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}
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.svgMark {
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width: 100%;
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height: 100%;
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position: fixed;
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top: 0;
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right: 0;
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bottom: 0;
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left: 0;
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overflow: auto;
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margin: 0;
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z-index: 2000;
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background: rgba(0, 0, 0, 0.3);
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}
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.svgWrapper {
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background: #fff;
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width: 800px;
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margin: 5vh auto;
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height: 90vh;
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text-align: center;
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border-radius: 2px;
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overflow-y: scroll;
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}
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.svgItem {
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padding: 20px 40px 0;
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font-family: Helvetica Neue, Helvetica, PingFang SC, Hiragino Sans GB,
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Microsoft YaHei, Arial, sans-serif;
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font-size: 18px;
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display: flex;
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justify-content: space-between;
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}
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svg {
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font-size: 14px;
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}
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.node rect {
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stroke: #606266;
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fill: #fff;
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}
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.edgePath path {
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stroke: #606266;
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fill: #333;
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stroke-width: 1.5px;
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}
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g.conditions > rect {
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fill: #00ffd0;
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stroke: #000;
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}
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.el-icon-close {
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cursor: pointer;
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}
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</style>
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