feat: 优化泡泡玛特的图表

js/charts/ppmt_channel_revenue.js

@@ -1,7 +1,7 @@
 import { col } from '../csv.js';
 import {
   CHANNEL_COLORS, PALETTE, FONT, axisCommon, standalonePeriodAxis, titleStyle, legendStyle,
-  financialViewDisclosure, financialViewLabel,
+  financialViewDisclosure, financialViewLabel, niceAxisMax,
   lineSeries, footnote, watermarks, LAYOUT,
 } from '../theme.js';
 
@@ -23,14 +23,12 @@ const INSIDE_LABEL_COLORS = {
 
 const num = (value) => (Number.isFinite(value) ? value : null);
 
-// 轴上限取整齐刻度，柱高比例确定后，段标签的段内/外置可按像素判断
-const NICE_MAX = [20, 25, 50, 60, 80, 100, 120, 150, 200, 250, 300, 400, 500, 600, 800, 1000];
+// 轴上限按数据最大值取整齐刻度，柱高比例确定后，段标签的段内/外置可按像素判断
 const MIN_INSIDE_PX = 13; // 低于约 13px 的段放不下 10px 段内标签
 
 export function channelRevenueChart(rows, { width, height, view = 'all' }) {
   const totalMax = Math.max(...rows.map((row) => num(row.total_revenue) || 0));
-  const axisMax = NICE_MAX.find((max) => max >= totalMax * 1.02)
-    ?? Math.ceil((totalMax * 1.2) / 100) * 100;
+  const axisMax = niceAxisMax(totalMax);
   const yoyValues = col(rows, 'revenue_yoy').filter(Number.isFinite);
   // 全部／半年视图存在 2022H2 的负增长，右轴需包含负区间，避免折线被 0 轴裁切。
   const yoyMin = Math.min(0, Math.floor(Math.min(...yoyValues) / 50) * 50);