How to use the @antv/my-f2/lib/core.Renderer function in @antv/my-f2
To help you get started, we’ve selected a few @antv/my-f2 examples, based on popular ways it is used in public projects.
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antvis / mini-program-f2-demos / pages / charts / line / index.js View on Github 
.exec((res) => {
// 获取分辨率
const pixelRatio = my.getSystemInfoSync().pixelRatio;
// 获取画布实际宽高
const canvasWidth = res[0].width;
const canvasHeight = res[0].height;
this.setData({
width: canvasWidth * pixelRatio,
height: canvasHeight * pixelRatio
});
const myCtx = my.createCanvasContext('line');
myCtx.scale(pixelRatio, pixelRatio); // 必要！按照设置的分辨率进行放大
const canvas = new F2.Renderer(myCtx);
this.canvas = canvas;
drawChart(canvas, res[0].width, res[0].height);
});
},
