fix: fix subLayoutFacetCircle cal center y problem

[BENcorry]

Checklist

• npm test passes
• benchmarks are included
• commit message follows commit guidelines
• documents are updated

Description of change

解决问题

使用facetCircle绘制时，月份的数据和具体图表对应不上的问题 #5624

解决办法

处理在会只过程中对于子坐标系的原点计算的逻辑

Demo

import { Chart } from '../../../src';

export function viewFacetCircle(context) {
  const { container, canvas } = context;

  const M = [
    'Jan.',
    'Feb.',
    'Mar.',
    'Apr.',
    'May',
    'Jun.',
    'Jul.',
    'Aug.',
    'Sept.',
    'Oct.',
    'Nov.',
    'Dec.',
  ];
  const N = ['A', 'B', 'C', 'D'];
  const data = M.flatMap((month, i) =>
    N.map((name, j) => ({
      month,
      name,
      value: i + j,
    })),
  );

  const chart = new Chart({
    container: container,
    canvas,
  });

  const facetCircle = chart
    .facetCircle()
    .data(data)
    .encode('position', 'month');

  facetCircle
    .interval()
    .encode('x', 'name')
    .encode('y', 'value')
    .encode('color', 'name');

  const finished = chart.render();

  return { chart, finished };
}

修复前

修复后

[BENcorry]

我这边删除月份让月份的数量为单数的时候,不存在刻度的问题

demo

export function viewFacetCircle(context) {
  const { container, canvas } = context;

  const M = [
    'Jan.',
    'Feb.',
    'Mar.',
    'Apr.',
    'May',
    'Jun.',
    'Jul.',
    'Aug.',
    'Sept.',
    'Oct.',
    'Nov.',
  ];
  const N = ['A', 'B', 'C', 'D'];
  const data = M.flatMap((month, i) =>
    N.map((name, j) => ({
      month,
      name,
      value: i + j,
    })),
  );

  const chart = new Chart({
    container: container,
    canvas,
  });

  const facetCircle = chart
    .facetCircle()
    .data(data)
    .encode('position', 'month');

  facetCircle
    .interval()
    .encode('x', 'name')
    .encode('y', 'value')
    .encode('color', 'name');

  const finished = chart.render();

  return { chart, finished };
}

[pearmini]

CI 报错了，本地删除对应的截图，运行 npm t 重新生成一下。

[pearmini]

LGTM🚀🚀