vchart-svg-plugin 是 vchart 插件，用于将 vchart 渲染后的内容转换成 svg，方便在打印、SSR 等环境下使用

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简介

VChart 是 VisActor 可视化体系中的图表组件库，基于 vchart-svg-plugin，可以轻松的将图表转换成 svg 文件

🔨 使用

📦 安装

# npm
$ npm install @visactor/vchart-svg-plugin

# yarn
$ yarn add @visactor/vchart-svg-plugin

📊 一个简单的图表

import VChart from "@visactor/vchart";
import { convertVChartToSvg } from "@visactor/vchart-svg-plugin";

const spec = {
  type: "pie",
  data: [
    {
      id: "id0",
      values: [
        { type: "oxygen", value: "46.60" },
        { type: "silicon", value: "27.72" },
        { type: "aluminum", value: "8.13" },
        { type: "iron", value: "5" },
        { type: "calcium", value: "3.63" },
        { type: "sodium", value: "2.83" },
        { type: "potassium", value: "2.59" },
        { type: "others", value: "3.5" },
      ],
    },
  ],
  outerRadius: 0.8,
  valueField: "value",
  categoryField: "type",
  title: {
    visible: true,
    text: "Statistics of Surface Element Content",
  },
  legends: {
    visible: true,
    orient: "left",
  },
  label: {
    visible: true,
  },
  tooltip: {
    mark: {
      content: [
        {
          key: (datum) => datum["type"],
          value: (datum) => datum["value"] + "%",
        },
      ],
    },
  },
};

const vchart = new VChart(spec, {
  dom: "chart-container",
  animation: false, // 注意，不要开启动画，不然需要监听动画结束事件，再进行svg转换
});
vchart.renderSync();

const svgContent = convertVChartToSvg(vchart);

node 端渲染

const VChart = require("@visactor/vchart");
const Canvas = require("canvas");
const { convertVChartToSvg } = require("@visactor/vchart-svg-plugin");

const spec = {
  type: "pie",
  data: [
    {
      id: "id0",
      values: [
        { type: "oxygen", value: "46.60" },
        { type: "silicon", value: "27.72" },
        { type: "aluminum", value: "8.13" },
        { type: "iron", value: "5" },
        { type: "calcium", value: "3.63" },
        { type: "sodium", value: "2.83" },
        { type: "potassium", value: "2.59" },
        { type: "others", value: "3.5" },
      ],
    },
  ],
  outerRadius: 0.8,
  valueField: "value",
  categoryField: "type",
  title: {
    visible: true,
    text: "Statistics of Surface Element Content",
  },
  legends: {
    visible: true,
    orient: "left",
  },
  label: {
    visible: true,
  },
  tooltip: {
    mark: {
      content: [
        {
          key: (datum) => datum["type"],
          value: (datum) => datum["value"] + "%",
        },
      ],
    },
  },
};

const vchart = new VChart(spec, {
  // 声明使用的渲染环境以及传染对应的渲染环境参数
  mode: "node",
  modeParams: Canvas,
  animation: false,
});
vchart.renderSync();

const svgContent = convertVChartToSvg(vchart);

🔗 相关链接

• 主页
• VCharts 图表示例
• VChart 图表教程
• VChart 图表配置项
• VChart API
• VGrammar
• VRender
• FAQ
• CodeSandbox 模板 用于 bug 的提交

🤝 参与贡献

如想参与贡献，请先阅读行为准则 和贡献指南。

细流成河，终成大海！