From 53c7ddf9d4148a35555adcef56a6875c254e5653 Mon Sep 17 00:00:00 2001
From: monitor1394 <monitor1394@gmail.com>
Date: Mon, 11 Dec 2023 13:43:03 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D`Serie`=E6=B7=BB=E5=8A=A0`dou?=
 =?UTF-8?q?ble.MaxValue`=E6=97=B6=E5=9D=90=E6=A0=87=E7=BB=98=E5=88=B6?=
 =?UTF-8?q?=E5=A4=B1=E8=B4=A5=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/Component/Axis/AxisHandler.cs |  7 +++++--
 Runtime/Component/Axis/AxisHelper.cs  | 19 +++++++++----------
 3 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/Documentation~/zh/changelog.md b/Documentation~/zh/changelog.md
index 8b7a3567..9112d20c 100644
--- a/Documentation~/zh/changelog.md
+++ b/Documentation~/zh/changelog.md
@@ -70,6 +70,7 @@ slug: /changelog
 
 ## master
 
+* (2023.12.11) 修复`Serie`添加`double.MaxValue`时坐标绘制失败的问题
 * (2023.12.10) 增加`Serie`的`minShowLabel`可隐藏小于指定值的`label`
 * (2023.12.09) 增加`LevelStyle`的`LineStyle`和`depth`支持
 * (2023.12.09) 增加`Serie`的`Link`可用于桑基图添加节点边关系
diff --git a/Runtime/Component/Axis/AxisHandler.cs b/Runtime/Component/Axis/AxisHandler.cs
index e09bdd9f..f79d2a86 100644
--- a/Runtime/Component/Axis/AxisHandler.cs
+++ b/Runtime/Component/Axis/AxisHandler.cs
@@ -267,7 +267,11 @@ namespace XCharts
 
                 if (axis.interval == 0)
                 {
-                    if (axis.splitNumber > 0)
+                    if (range >= double.MaxValue / 2)
+                    {
+                        tick = range / 4;
+                    }
+                    else if (axis.splitNumber > 0)
                     {
                         tick = range / axis.splitNumber;
                     }
@@ -865,7 +869,6 @@ namespace XCharts
             for (int i = 0; i < size; i++)
             {
                 var scaleWidth = AxisHelper.GetScaleWidth(axis, axisLength, axis.IsTime() ? i : i + 1, dataZoom);
-
                 if (axis.boundaryGap && axis.axisTick.alignWithLabel)
                     current -= scaleWidth / 2;
 
diff --git a/Runtime/Component/Axis/AxisHelper.cs b/Runtime/Component/Axis/AxisHelper.cs
index b70c62b4..d9a5c966 100644
--- a/Runtime/Component/Axis/AxisHelper.cs
+++ b/Runtime/Component/Axis/AxisHelper.cs
@@ -245,21 +245,20 @@ namespace XCharts.Runtime
         {
             if (index < 0)
                 return 0;
-
-            int num = GetScaleNumber(axis, coordinateWidth, dataZoom);
-            int splitNum = GetSplitNumber(axis, coordinateWidth, dataZoom);
-            if (num <= 0)
-                num = 1;
-
             if (axis.IsTime() || axis.IsValue())
             {
                 var value = axis.GetLabelValue(index);
                 var lastValue = axis.GetLabelValue(index - 1);
-                return axis.context.minMaxRange == 0 ? 0 :
-                    (float)(coordinateWidth * (value - lastValue) / axis.context.minMaxRange);
+                var width = axis.context.minMaxRange == 0 ? 0 :
+                    (float)(coordinateWidth * ((value - lastValue) / axis.context.minMaxRange));
+                return width;
             }
             else
             {
+                int num = GetScaleNumber(axis, coordinateWidth, dataZoom);
+                int splitNum = GetSplitNumber(axis, coordinateWidth, dataZoom);
+                if (num <= 0)
+                    num = 1;
                 var data = axis.GetDataList(dataZoom);
                 if (axis.IsCategory() && data.Count > 0 && splitNum > 0)
                 {
@@ -344,7 +343,7 @@ namespace XCharts.Runtime
                 int maxSplit = 0;
                 maxValue = ChartHelper.GetMaxLogValue(maxValue, axis.logBase, axis.logBaseE, out maxSplit);
                 minValue = ChartHelper.GetMinLogValue(minValue, axis.logBase, axis.logBaseE, out minSplit);
-                
+
                 var splitNumber = maxSplit + minSplit;
                 if (splitNumber > 15)
                     splitNumber = 15;
@@ -633,7 +632,7 @@ namespace XCharts.Runtime
             var startX = grid.context.x + yAxis.offset;
             if (yAxis.IsRight())
                 startX += grid.context.width;
-            else if (yAxis.axisLine.onZero && relativedAxis != null && relativedAxis.IsValue() 
+            else if (yAxis.axisLine.onZero && relativedAxis != null && relativedAxis.IsValue()
                 && relativedAxis.gridIndex == yAxis.gridIndex)
                 startX += relativedAxis.context.offset;
             return startX;