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安装

npm i --save @vue-flow/core

yarn add @vue-flow/core

pnpm i @vue-flow/core

使用

<template>

  <VueFlow v-model="elements" />

</template>

<script setup>

import { VueFlow  } from '@vue-flow/core'

const elements = ref([

  // Nodes

  // An input node, specified by using `type: 'input'`

  { id: '1', type: 'input', label: 'Node 1', position: { x: 250, y: 5 } },

  // Default nodes, you can omit `type: 'default'`

  { id: '2', label: 'Node 2', position: { x: 100, y: 100 }, },

  { id: '3', label: 'Node 3', position: { x: 400, y: 100 } },

  // An output node, specified by using `type: 'output'`

  { id: '4', type: 'output', label: 'Node 4', position: { x: 400, y: 200 } },

  // Edges

  // Most basic edge, only consists of an id, source-id and target-id

  { id: 'e1-3', source: '1', target: '3' },

  // An animated edge

  { id: 'e1-2', source: '1', target: '2', animated: true },

])

</script>

<style>

/* these are necessary styles for vue flow */

@import "@vue-flow/core/dist/style.css";

/* this contains the default theme, these are optional styles */

@import "@vue-flow/core/dist/theme-default.css";

</style>

常用功能：

画布居中

import { VueFlow, useVueFlow } from "@vue-flow/core";

const { onPaneReady } = useVueFlow();

const state = reactive({

  instance: null,

});

onPaneReady((instance) => {

  instance.fitView();

  // 将对象缓存

  state.instance = instance;

});

// 设置缩放级别

state.instance.fitView({ offset: { y: 50 } });

state.instance.zoomTo(1);

点击事件

  <VueFlow

    v-model="flowElement"

    :style="{ background: 'transparent' }"

    :default-zoom="1"

    fit-view-on-init

    @nodeClick="nodeClickHandler"

  />

  const nodeClickHandler = (props) => {

    const node = props.node;

    console.log(node.id);

  };

巴特西

Vue3 流程图组件库 Vue Flow 简单使用

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