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Brush: 如何在框选之后获得框选的数据？ #3827

imyuxh posted onGitHub

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您好请教个问题：想做一个框选的效果，但是不是用g2自带的filter 而是想要拿到框选后的数据（准确说是x轴的时间），然后重新取发请求。目前通过回调函数能拿到context，以及通过context获得x,y坐标。请问我可以直接拿到框选后的数据吗？如果是要通过坐标自己计算的话，要如何计算呢？谢谢

duplicate with: #3755

posted by visiky almost 3 years ago

Sorry, due to problems in the program's architecture design, we are unable to effectively fix the issues. But it fixed in G2 5.0, you can have a try.

chart.on('brush:filter', (event) => {
  const { selection } = event.data;
  const [domainX, domainY] = selection;
  const [minX, maxX] = domainX;
  const [minY, maxY] = domainY;
  console.log(minX, maxX, minY, maxY);
});

posted by hustcc over 1 year ago

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