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@gjfleo/koishi-plugin-g2

v1.0.0

Published

在koishi中使用@antv/g2,基于skia-canvas。

Downloads

41

Readme

@gjfleo/koishi-plugin-g2

npm

在koishi中使用@antv/g2绘制统计图表。

参考了@antv/g2-ssr,基于skia-canvas插件实现。

用法

const chart = await ctx.g2.createChart({
  type: "interval",
  autoFit: true,
  data: [
    { name: "London", 月份: "Jan.", 月均降雨量: 18.9 },
    { name: "London", 月份: "Feb.", 月均降雨量: 28.8 },
    { name: "London", 月份: "Mar.", 月均降雨量: 39.3 },
    { name: "London", 月份: "Apr.", 月均降雨量: 81.4 },
    { name: "London", 月份: "May", 月均降雨量: 47 },
    { name: "London", 月份: "Jun.", 月均降雨量: 20.3 },
    { name: "London", 月份: "Jul.", 月均降雨量: 24 },
    { name: "London", 月份: "Aug.", 月均降雨量: 35.6 },
    { name: "Berlin", 月份: "Jan.", 月均降雨量: 12.4 },
    { name: "Berlin", 月份: "Feb.", 月均降雨量: 23.2 },
    { name: "Berlin", 月份: "Mar.", 月均降雨量: 34.5 },
    { name: "Berlin", 月份: "Apr.", 月均降雨量: 99.7 },
    { name: "Berlin", 月份: "May", 月均降雨量: 52.6 },
    { name: "Berlin", 月份: "Jun.", 月均降雨量: 35.5 },
    { name: "Berlin", 月份: "Jul.", 月均降雨量: 37.4 },
    { name: "Berlin", 月份: "Aug.", 月均降雨量: 42.4 },
  ],
  encode: { x: "月份", y: "月均降雨量", color: "name" },
  transform: [{ type: "dodgeX" }],
  interaction: { elementHighlight: { background: true } },
  theme: { view: { viewFill: "white" } },
});
const dataUrl = await chart.toDataURL("png");
session.send(<img src={dataUrl} />);

注意事项:

  • animateinteraction 相关的配置项不会生效
  • 默认主题的背景色为透明,在发送消息场景中通常需要指定
  • 部分功能(如 image 标记)无法使用