支持生成chart实例以后再插入plugin

[missjing]

• F2 Version: 3.1.6
• Platform:
• Mini Showcase(like screenshots):
• CodePen Link:

目前不支持实例化后再插入plugin的方式，希望能支持，如

    import F2 from '@antv/f2/lib/core';
    import '@antv/f2/lib/geom/line';
    import Guide from '@antv/f2/lib/plugin/guide';
    import '@antv/f2/lib/component/guide';

    
    const chart = new F2.Chart({
      el: this.refs.canvas,
      width: 400,
      height: 200,
      // plugins: [ Guide ]
    });
    Guide.init(chart);
    chart.set('plugins', [ Guide ]);  // 类似于这样设置plugin
    chart.source([{name: 'city1', count: 12, { name: 'city2', count: 20 }]);
    chart.guide().text({
      position: ['city1', 12],
      content: '阿斯顿',
    });
    chart.line().position('name*count');

    chart.render();

[cycgit]

+1