修复Axis的inverse没能正确反转的问题

Documentation~/zh/changelog.md

@@ -81,7 +81,8 @@ slug: /changelog
 
 ## master
 
-* (2026.05.22) 增加`LabelStyle`的`showCondition`,`showFilter`,`showThreshold`可控制`label`显示和隐藏
+* (2026.05.23) 修复`Axis`的`inverse`没能正确反转的问题
+* (2026.05.23) 增加`LabelStyle`的`showCondition`,`showFilter`,`showThreshold`可控制`label`显示和隐藏
 * (2026.05.22) 增加`LabelStyle`的`minGap`可避免`label`过于密集
 * (2026.05.17) 修复`DataZoom`点击时指示区域不准的问题
 * (2026.05.17) 增加`Legend`的`Width`和`Height`可设置固定宽高

Runtime/Component/Axis/AxisHandler.cs

@@ -126,6 +126,8 @@ namespace XCharts
                         var yValue = yRate * (chart.pointerPos.y - grid.context.y - axis.context.offset);
                         if (axis.context.minValue > 0)
                             yValue += axis.context.minValue;
+                        if (axis.inverse)
+                            yValue = -yValue;
 
                         var labelX = axis.GetLabelObjectPosition(0).x;
                         axis.context.pointerValue = yValue;
@@ -154,6 +156,8 @@ namespace XCharts
                             xValue = xRate * (chart.pointerPos.x - grid.context.x - axis.context.offset);
                             if (axis.context.minValue > 0)
                                 xValue += axis.context.minValue;
+                            if (axis.inverse)
+                                xValue = -xValue;
                         }
                         var labelY = axis.GetLabelObjectPosition(0).y;
                         axis.context.pointerValue = xValue;
@@ -188,15 +192,20 @@ namespace XCharts
             double tempMinValue;
             double tempMaxValue;
             axis.context.needAnimation = Application.isPlaying && axis.animation.show;
+            if (axis.inverse != axis.context.lastCheckInverse)
+            {
+                foreach (var serie in chart.series)
+                    serie.context.InvalidateMinMaxCache();
+            }
             chart.GetSeriesMinMaxValue(axis, axisIndex, out tempMinValue, out tempMaxValue);
 
             var dataZoom = chart.GetDataZoomOfAxis(axis);
             if (dataZoom != null && dataZoom.enable)
             {
                 if (axis is XAxis)
-                    dataZoom.SetXAxisIndexValueInfo(axisIndex, ref tempMinValue, ref tempMaxValue);
+                    dataZoom.SetXAxisIndexValueInfo(axisIndex, ref tempMinValue, ref tempMaxValue, axis.inverse);
                 else
-                    dataZoom.SetYAxisIndexValueInfo(axisIndex, ref tempMinValue, ref tempMaxValue);
+                    dataZoom.SetYAxisIndexValueInfo(axisIndex, ref tempMinValue, ref tempMaxValue, axis.inverse);
             }
 
             if (tempMinValue != axis.context.destMinValue ||

Runtime/Component/DataZoom/DataZoom.cs

@@ -415,6 +415,7 @@ namespace XCharts.Runtime
             public double rawMax;
             public double min;
             public double max;
+            public bool isInverse;
         }
         private Dictionary<int, AxisIndexValueInfo> m_XAxisIndexInfos = new Dictionary<int, AxisIndexValueInfo>();
         private Dictionary<int, AxisIndexValueInfo> m_YAxisIndexInfos = new Dictionary<int, AxisIndexValueInfo>();
@@ -688,7 +689,7 @@ namespace XCharts.Runtime
             context.height = chartHeight - runtimeTop - runtimeBottom;
         }
 
-        internal void SetXAxisIndexValueInfo(int xAxisIndex, ref double min, ref double max)
+        internal void SetXAxisIndexValueInfo(int xAxisIndex, ref double min, ref double max, bool isInverse = false)
         {
             AxisIndexValueInfo info;
             if (!m_XAxisIndexInfos.TryGetValue(xAxisIndex, out info))
@@ -698,13 +699,14 @@ namespace XCharts.Runtime
             }
             info.rawMin = min;
             info.rawMax = max;
+            info.isInverse = isInverse;
             info.min = min + (max - min) * start / 100;
             info.max = min + (max - min) * end / 100;
             min = info.min;
             max = info.max;
         }
 
-        internal void SetYAxisIndexValueInfo(int yAxisIndex, ref double min, ref double max)
+        internal void SetYAxisIndexValueInfo(int yAxisIndex, ref double min, ref double max, bool isInverse = false)
         {
             AxisIndexValueInfo info;
             if (!m_YAxisIndexInfos.TryGetValue(yAxisIndex, out info))
@@ -714,6 +716,7 @@ namespace XCharts.Runtime
             }
             info.rawMin = min;
             info.rawMax = max;
+            info.isInverse = isInverse;
             info.min = min + (max - min) * start / 100;
             info.max = min + (max - min) * end / 100;
             min = info.min;
@@ -738,6 +741,14 @@ namespace XCharts.Runtime
                 var range = info.rawMax - info.rawMin;
                 min = info.rawMin + range * m_Start / 100;
                 max = info.rawMin + range * m_End / 100;
+                if (info.isInverse)
+                {
+                    // Internal values are negated; convert back to original for data comparison
+                    var originalMin = -max;
+                    var originalMax = -min;
+                    min = originalMin;
+                    max = originalMax;
+                }
             }
             else
             {
@@ -753,6 +764,14 @@ namespace XCharts.Runtime
                 var range = info.rawMax - info.rawMin;
                 min = info.rawMin + range * m_Start / 100;
                 max = info.rawMin + range * m_End / 100;
+                if (info.isInverse)
+                {
+                    // Internal values are negated; convert back to original for data comparison
+                    var originalMin = -max;
+                    var originalMax = -min;
+                    min = originalMin;
+                    max = originalMax;
+                }
             }
             else
             {

Runtime/Component/DataZoom/DataZoomHandler.cs

@@ -636,7 +636,7 @@ namespace XCharts.Runtime
                     float pX;
                     if (useXValueForShadow && i < showData.Count && showData[i].data.Count > 0)
                     {
-                        var xVal = showData[i].data[0];
+                        var xVal = (xAxis != null && xAxis.inverse) ? -showData[i].data[0] : showData[i].data[0];
                         pX = dataZoom.context.x + (float)((xVal - xMinValue) / (xMaxValue - xMinValue)) * dataZoom.context.width;
                     }
                     else

Runtime/Component/Tooltip/TooltipHandler.cs

@@ -427,8 +427,10 @@ namespace XCharts.Runtime
 
         private void GetSerieDataByXYAxis(Serie serie, Axis xAxis, Axis yAxis)
         {
-            var xAxisIndex = AxisHelper.GetAxisValueSplitIndex(xAxis, xAxis.context.pointerValue, false);
+            var xPointerInternal = xAxis.inverse ? -xAxis.context.pointerValue : xAxis.context.pointerValue;
-            var yAxisIndex = AxisHelper.GetAxisValueSplitIndex(yAxis, yAxis.context.pointerValue, false);
+            var yPointerInternal = yAxis.inverse ? -yAxis.context.pointerValue : yAxis.context.pointerValue;
+            var xAxisIndex = AxisHelper.GetAxisValueSplitIndex(xAxis, xPointerInternal, false);
+            var yAxisIndex = AxisHelper.GetAxisValueSplitIndex(yAxis, yPointerInternal, false);
             serie.context.pointerItemDataIndex = -1;
             if (serie is Heatmap)
             {
@@ -441,8 +443,10 @@ namespace XCharts.Runtime
             }
             foreach (var serieData in serie.data)
             {
-                var x = AxisHelper.GetAxisValueSplitIndex(xAxis, serieData.GetData(0), true);
+                var xData = xAxis.inverse ? -serieData.GetData(0) : serieData.GetData(0);
-                var y = AxisHelper.GetAxisValueSplitIndex(yAxis, serieData.GetData(1), true);
+                var yData = yAxis.inverse ? -serieData.GetData(1) : serieData.GetData(1);
+                var x = AxisHelper.GetAxisValueSplitIndex(xAxis, xData, true);
+                var y = AxisHelper.GetAxisValueSplitIndex(yAxis, yData, true);
                 if (xAxisIndex == x && y == yAxisIndex)
                 {
                     serie.context.pointerItemDataIndex = serieData.index;
@@ -472,7 +476,8 @@ namespace XCharts.Runtime
             {
                 var index = serie.context.pointerAxisDataIndexs[0];
                 serie.context.pointerItemDataIndex = index;
-                axis.context.axisTooltipValue = serie.GetSerieData(index).GetData(dimension);
+                var dataValue = serie.GetSerieData(index).GetData(dimension);
+                axis.context.axisTooltipValue = axis.inverse ? -dataValue : dataValue;
             }
             else
             {
@@ -613,11 +618,12 @@ namespace XCharts.Runtime
         {
             if (serie.context.pointerItemDataIndex >= 0)
             {
-                axis.context.axisTooltipValue = serie.GetSerieData(serie.context.pointerItemDataIndex).GetData(dimension);
+                var dataValue = serie.GetSerieData(serie.context.pointerItemDataIndex).GetData(dimension);
+                axis.context.axisTooltipValue = axis.inverse ? -dataValue : dataValue;
             }
             else if (component.type == Tooltip.Type.Cross)
             {
-                axis.context.axisTooltipValue = axis.context.pointerValue;
+                axis.context.axisTooltipValue = axis.inverse ? -axis.context.pointerValue : axis.context.pointerValue;
             }
             else
             {