From a5aa630b747904f6ecfced91ca88273b3670cf6c Mon Sep 17 00:00:00 2001
From: monitor1394 <monitor1394@gmail.com>
Date: Mon, 12 Dec 2022 13:41:04 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D`Axis`=E7=9A=84`Value`?=
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---
 Documentation~/zh/changelog.md            | 1 +
 Runtime/Internal/Utilities/ChartHelper.cs | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation~/zh/changelog.md b/Documentation~/zh/changelog.md
index 625ae1c7..f89fac30 100644
--- a/Documentation~/zh/changelog.md
+++ b/Documentation~/zh/changelog.md
@@ -65,6 +65,7 @@ slug: /changelog
 
 ## master
 
+* (2022.12.12) 修复`Axis`的`Value`轴在某些情况下计算数值范围不准确的问题
 * (2022.12.12) 优化`Legend`的`formatter`支持`{h}`通配符
 * (2022.12.12) 修复`Legend`的`formatter`设置为固定值时显示不正常的问题
 * (2022.12.08) 增加`AreaStyle`的`toTop`参数可设置折线图渐变色是到顶部还是到实际位置
diff --git a/Runtime/Internal/Utilities/ChartHelper.cs b/Runtime/Internal/Utilities/ChartHelper.cs
index cc76d08a..2b8a88f8 100644
--- a/Runtime/Internal/Utilities/ChartHelper.cs
+++ b/Runtime/Internal/Utilities/ChartHelper.cs
@@ -713,7 +713,7 @@ namespace XCharts.Runtime
             }
             if (ceilRate == 0)
             {
-                var bigger = Math.Floor(Math.Abs(min));
+                var bigger = min < 0 ? Math.Ceiling(Math.Abs(min)) : Math.Floor(Math.Abs(min));
                 int n = 1;
                 while (bigger / (Mathf.Pow(10, n)) > 10)
                 {