From 4d3e7f1605f9915c4a9d339242db92683b8f7bc6 Mon Sep 17 00:00:00 2001
From: monitor1394 <monitor1394@gmail.com>
Date: Thu, 16 Apr 2020 09:36:03 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D`PieChart`=E5=9C=A8=E8=AE=BE?=
 =?UTF-8?q?=E7=BD=AE`Space`=E5=8F=82=E6=95=B0=E5=90=8E=E5=8A=A8=E7=94=BB?=
 =?UTF-8?q?=E7=BB=98=E5=88=B6=E5=BC=82=E5=B8=B8=E7=9A=84=E9=97=AE=E9=A2=98?=
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---
 Runtime/Utility/ChartDrawer.cs | 40 +++++++++++++++++++++-------------
 1 file changed, 25 insertions(+), 15 deletions(-)

diff --git a/Runtime/Utility/ChartDrawer.cs b/Runtime/Utility/ChartDrawer.cs
index 41d15bf2..406532a7 100644
--- a/Runtime/Utility/ChartDrawer.cs
+++ b/Runtime/Utility/ChartDrawer.cs
@@ -655,15 +655,22 @@ namespace XCharts
                     realCenter += borderDiff * middleDire;
                     borderAngle = 2 * Mathf.Asin(borderWidth / (2 * radius));
                     realStartAngle = realStartAngle + borderAngle;
-                    var borderX1 = GetPos(p, radius, realStartAngle);
-                    DrawPolygon(vh, realCenter, spaceCenter, p2, borderX1, borderColor);
-                    p2 = borderX1;
-
                     realToAngle = realToAngle - borderAngle;
-                    if (realToAngle < realStartAngle) realToAngle = realStartAngle;
-                    var borderX2 = GetPos(p, radius, realToAngle);
-                    var pEnd = GetPos(p, radius, toAngle - spaceAngle);
-                    DrawPolygon(vh, realCenter, borderX2, pEnd, spaceCenter, borderColor);
+                    if (realToAngle < realStartAngle)
+                    {
+                        realToAngle = realStartAngle;
+                        p2 = GetPos(p, radius, realStartAngle);
+                    }
+                    else
+                    {
+                        var borderX1 = GetPos(p, radius, realStartAngle);
+                        DrawPolygon(vh, realCenter, spaceCenter, p2, borderX1, borderColor);
+                        p2 = borderX1;
+
+                        var borderX2 = GetPos(p, radius, realToAngle);
+                        var pEnd = GetPos(p, radius, toAngle - spaceAngle);
+                        DrawPolygon(vh, realCenter, borderX2, pEnd, spaceCenter, borderColor);
+                    }
                 }
             }
             float segmentAngle = (realToAngle - realStartAngle) / segments;
@@ -676,14 +683,17 @@ namespace XCharts
             }
             if (needBorder || needSpace)
             {
-                var borderX2 = p + radius * GetDire(realToAngle);
-                DrawTriangle(vh, realCenter, p2, borderX2, toColor, color, color);
-                if (needBorder)
+                if (realToAngle > realStartAngle)
                 {
-                    var realStartDegree = (realStartAngle - borderAngle) * Mathf.Rad2Deg;
-                    var realToDegree = (realToAngle + borderAngle) * Mathf.Rad2Deg;
-                    DrawDoughnut(vh, p, radius, radius + borderWidth, borderColor, Color.clear, realStartDegree,
-                        realToDegree, smoothness);
+                    var borderX2 = p + radius * GetDire(realToAngle);
+                    DrawTriangle(vh, realCenter, p2, borderX2, toColor, color, color);
+                    if (needBorder)
+                    {
+                        var realStartDegree = (realStartAngle - borderAngle) * Mathf.Rad2Deg;
+                        var realToDegree = (realToAngle + borderAngle) * Mathf.Rad2Deg;
+                        DrawDoughnut(vh, p, radius, radius + borderWidth, borderColor, Color.clear, realStartDegree,
+                            realToDegree, smoothness);
+                    }
                 }
             }
         }