From 573f9efcaf1284ee84da1e0dae1efd9c2f3721a6 Mon Sep 17 00:00:00 2001
From: monitor1394 <monitor1394@gmail.com>
Date: Sat, 21 Oct 2023 22:08:03 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D`Pie`=E6=9C=890=E6=95=B0?=
 =?UTF-8?q?=E6=8D=AE=E6=97=B6`Label`=E7=9A=84=E4=BD=8D=E7=BD=AE=E5=BC=82?=
 =?UTF-8?q?=E5=B8=B8=E7=9A=84=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Documentation~/zh/changelog.md  |  1 +
 Runtime/Serie/Pie/PieHandler.cs | 12 +++++++-----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/Documentation~/zh/changelog.md b/Documentation~/zh/changelog.md
index 96bdfcb8..f0be7da6 100644
--- a/Documentation~/zh/changelog.md
+++ b/Documentation~/zh/changelog.md
@@ -69,6 +69,7 @@ slug: /changelog
 
 ## master
 
+* (2023.10.21) 修复`Pie`有0数据时`Label`的位置异常的问题
 * (2023.10.21) 增加`Axis`的对数轴支持子刻度
 * (2023.10.19) 修复`Pie`设置玫瑰图时引导线异常的问题
 * (2023.10.15) 修复`Line`设置`Animation`为`AlongPath`时动画异常的问题 (#281)
diff --git a/Runtime/Serie/Pie/PieHandler.cs b/Runtime/Serie/Pie/PieHandler.cs
index 76a7cded..d39c9199 100644
--- a/Runtime/Serie/Pie/PieHandler.cs
+++ b/Runtime/Serie/Pie/PieHandler.cs
@@ -46,9 +46,9 @@ namespace XCharts.Runtime
             if (labelLine != null && labelLine.show && serieData.labelObject != null)
             {
                 var currAngle = serieData.context.halfAngle - serie.context.startAngle;
-                var isRight = currAngle % 360 < 180;
+                var isLeft = currAngle > 180 || (currAngle == 0 && serieData.context.startAngle > 0);
                 var textOffset = serieData.labelObject.text.GetPreferredWidth() / 2;
-                return serieData.context.labelPosition + (isRight ? Vector3.right : Vector3.left) * textOffset;
+                return serieData.context.labelPosition + (isLeft ? Vector3.left : Vector3.right) * textOffset;
             }
             else
             {
@@ -62,9 +62,11 @@ namespace XCharts.Runtime
             if (label.autoOffset)
             {
                 var currAngle = serieData.context.halfAngle - serie.context.startAngle;
-                var isRight = currAngle % 360 < 180;
-                if (isRight) return offset;
-                else return new Vector3(-offset.x, offset.y, offset.z);
+                var isLeft = currAngle > 180 || (currAngle == 0 && serieData.context.startAngle > 0);
+                if (isLeft)
+                    return new Vector3(-offset.x, offset.y, offset.z);
+                else
+                    return offset;
             }
             else
             {