From 230021a7b69673476f3065c376c0b6f6ec30b6d6 Mon Sep 17 00:00:00 2001
From: tangweijie <877588133@qq.com>
Date: Fri, 23 Jan 2026 11:38:08 +0800
Subject: [PATCH] =?UTF-8?q?feat(dashboard):=20=E4=BC=98=E5=8C=96=E9=A3=8E?=
 =?UTF-8?q?=E9=99=A9=E8=B6=8B=E5=8A=BF=E5=9B=BEY=E8=BD=B4=E5=8A=A8?=
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根据数据范围自动计算合适的Y轴最大值和刻度间隔：
- 小于等于10：向上取整到整数
- 10-50：向上取整到10的倍数
- 50-100：向上取整到10的倍数
- 100-500：向上取整到50的倍数
- 500-1000：向上取整到100的倍数
- 大于1000：向上取整到500的倍数

自动计算刻度间隔，确保显示6-8个刻度，提升图表可读性
---
 src/views/DashEntry/DashEntry.vue | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

diff --git a/src/views/DashEntry/DashEntry.vue b/src/views/DashEntry/DashEntry.vue
index f6922b06..3a187081 100644
--- a/src/views/DashEntry/DashEntry.vue
+++ b/src/views/DashEntry/DashEntry.vue
@@ -281,7 +281,32 @@ const riskTrendOptions = computed<EChartsOption>(() => {
   // 计算最大值用于设置Y轴范围
   const allValues = [...highRiskData, ...warningData, ...normalData]
   const maxValue = Math.max(...allValues, 10)
-  const yAxisMax = Math.ceil(maxValue / 50) * 50 + 50
+
+  // 动态计算Y轴最大值，根据数据范围自动向上取整到合适的量级
+  let yAxisMax: number
+  if (maxValue === 0) {
+    yAxisMax = 10
+  } else if (maxValue <= 10) {
+    yAxisMax = Math.ceil(maxValue)
+  } else if (maxValue <= 50) {
+    // 对于10-50的数据，向上取整到10的倍数
+    yAxisMax = Math.ceil(maxValue / 10) * 10
+  } else if (maxValue <= 100) {
+    // 对于50-100的数据，向上取整到10的倍数
+    yAxisMax = Math.ceil(maxValue / 10) * 10
+  } else if (maxValue <= 500) {
+    // 对于100-500的数据，向上取整到50的倍数
+    yAxisMax = Math.ceil(maxValue / 50) * 50
+  } else if (maxValue <= 1000) {
+    // 对于500-1000的数据，向上取整到100的倍数
+    yAxisMax = Math.ceil(maxValue / 100) * 100
+  } else {
+    // 对于大于1000的数据，向上取整到500的倍数
+    yAxisMax = Math.ceil(maxValue / 500) * 500
+  }
+
+  // 计算合适的刻度间隔，确保显示6-8个刻度
+  const interval = Math.max(Math.ceil(yAxisMax / 6), 1)
 
   return {
     tooltip: {
@@ -306,7 +331,7 @@ const riskTrendOptions = computed<EChartsOption>(() => {
       type: 'value',
       min: 0,
       max: yAxisMax,
-      interval: Math.ceil(yAxisMax / 6)
+      interval: interval
     },
     series: [
       {