From 74029255123b0b5a3e649425973fc28b023024f5 Mon Sep 17 00:00:00 2001
From: monitor1394 <monitor1394@gmail.com>
Date: Tue, 5 Sep 2023 13:13:44 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D`Radar`=E6=95=B0=E6=8D=AE?=
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---
 Documentation~/zh/changelog.md      | 2 ++
 Runtime/Serie/Radar/RadarHandler.cs | 5 +++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/Documentation~/zh/changelog.md b/Documentation~/zh/changelog.md
index 9659d0d4..20f5e8fa 100644
--- a/Documentation~/zh/changelog.md
+++ b/Documentation~/zh/changelog.md
@@ -68,6 +68,8 @@ slug: /changelog
 
 ## master
 
+* (2023.09.05) 修复`Radar`数据全为0时绘制报错的问题
+
 ## v3.8.0
 
 版本要点：
diff --git a/Runtime/Serie/Radar/RadarHandler.cs b/Runtime/Serie/Radar/RadarHandler.cs
index 6f32edfb..fbd56eb4 100644
--- a/Runtime/Serie/Radar/RadarHandler.cs
+++ b/Runtime/Serie/Radar/RadarHandler.cs
@@ -283,7 +283,8 @@ namespace XCharts.Runtime
                             max = serie.context.dataMax;
                         }
                     }
-                    var radius = (float)(m_RadarCoord.context.dataRadius * (value - min) / (max - min));
+                    if (max - min == 0) continue;
+                    var radius = (float) (m_RadarCoord.context.dataRadius * (value - min) / (max - min));
                     var currAngle = startAngle + (n + (m_RadarCoord.positionType == RadarCoord.PositionType.Between ? 0.5f : 0)) * angle;
                     radius *= rate;
                     if (n == 0)
@@ -414,7 +415,7 @@ namespace XCharts.Runtime
                 {
                     lineColor = m_RadarCoord.outRangeColor;
                 }
-                var radius = (float)(max < 0 ? m_RadarCoord.context.dataRadius - m_RadarCoord.context.dataRadius * value / max :
+                var radius = (float) (max < 0 ? m_RadarCoord.context.dataRadius - m_RadarCoord.context.dataRadius * value / max :
                     m_RadarCoord.context.dataRadius * value / max);
                 var currAngle = startAngle + (index + (m_RadarCoord.positionType == RadarCoord.PositionType.Between ? 0.5f : 0)) * angle;
                 radius *= rate;