修复LineChart在数据过于密集时折线绘制异常的问题 #99

CHANGELOG-EN.md

@@ -1,6 +1,7 @@
 
 # 更新日志
 
+* (2020.11.22) Fixed an issue where `LineChart` draws an exception when the data is too dense #99
 * (2020.11.21) Fixed an issue where the scale position of `LineChart` could be abnormal if `alignWithLabel` was `true`
 * (2020.11.21) Fixed `Unity5` compatibility error reporting problem
 * (2020.11.13) Improved `RadarChart` `Indicator` support for `\n` line feed

CHANGELOG.md

@@ -1,6 +1,7 @@
 
 # 更新日志
 
+* (2020.11.22) 修复`LineChart`在数据过于密集时折线绘制异常的问题 #99
 * (2020.11.21) 修复`LineChart`的刻度位置在`alignWithLabel`为`true`时可能异常的问题
 * (2020.11.21) 修复`Unity5`兼容报错的问题
 * (2020.11.13) 完善`RadarChart`的`Indicator`对`\n`换行的支持

Runtime/Internal/CoordinateChart_DrawLine.cs

@@ -674,6 +674,16 @@ namespace XCharts
                 upPos1 = np + (isDown ? -dir1v : dir1v) * serie.lineStyle.width;
                 upPos2 = np + (isDown ? -dir2v : dir2v) * serie.lineStyle.width;
                 lastDir = dir1;
+                if (isDown)
+                {
+                    if (isYAxis && dnPos.x < lp.x && dnPos.x < nnp.x) dnPos.x = lp.x;
+                    if (!isYAxis && dnPos.y < lp.y && dnPos.y < nnp.y) dnPos.y = lp.y;
+                }
+                else
+                {
+                    if (isYAxis && dnPos.x > lp.x && dnPos.x > nnp.x) dnPos.x = lp.x;
+                    if (!isYAxis && dnPos.y > lp.y && dnPos.y > nnp.y) dnPos.y = lp.y;
+                }
             }
             else
             {
@@ -683,6 +693,7 @@ namespace XCharts
                 upPos1 = np - dir1v * serie.lineStyle.width;
                 upPos2 = np + dir1v * serie.lineStyle.width;
                 dnPos = isDown ? upPos2 : upPos1;
+
             }
             if (isSecond)
             {