更新曲线

Footwear Test methodsfor wholeshoe Slipresistanceperformance/Services/SlipExcelExportService.cs

@@ -131,7 +131,7 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.Services
         {
             var rows = new List<IReadOnlyList<object?>>
             {
-                new object?[] { "时间(s)", "正压力(N)", "摩擦力(N)", "位移量(mm)", "摩擦系数" }
+                new object?[] { "滑动开始后时间(s)", "垂直载荷(N)", "水平摩擦力(N)", "滑动位移(mm)", "摩擦系数" }
             };
 
             foreach (var point in points)
@@ -242,14 +242,40 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.Services
             worksheetPart.Worksheet.Append(new DocumentFormat.OpenXml.Spreadsheet.Drawing { Id = drawingRelationshipId });
 
             drawingsPart.WorksheetDrawing = new Xdr.WorksheetDrawing();
+            AddChartPart(
+                drawingsPart,
+                CreateForceAndCoefficientChartSpace(lastRow),
+                2U,
+                "防滑性能力与摩擦系数曲线",
+                1,
+                23);
+            AddChartPart(
+                drawingsPart,
+                CreateDisplacementChartSpace(lastRow),
+                3U,
+                "滑动位移",
+                25,
+                39);
+            drawingsPart.WorksheetDrawing.Save();
+            worksheetPart.Worksheet.Save();
+        }
+
+        private static void AddChartPart(
+            DrawingsPart drawingsPart,
+            C.ChartSpace chartSpace,
+            uint drawingId,
+            string name,
+            int fromRow,
+            int toRow)
+        {
             var chartPart = drawingsPart.AddNewPart<ChartPart>();
             var chartRelationshipId = drawingsPart.GetIdOfPart(chartPart);
-            chartPart.ChartSpace = CreateChartSpace(lastRow);
+            chartPart.ChartSpace = chartSpace;
             chartPart.ChartSpace.Save();
 
             var graphicFrame = new Xdr.GraphicFrame(
                 new Xdr.NonVisualGraphicFrameProperties(
-                    new Xdr.NonVisualDrawingProperties { Id = 2U, Name = "防滑性能曲线图" },
+                    new Xdr.NonVisualDrawingProperties { Id = drawingId, Name = name },
                     new Xdr.NonVisualGraphicFrameDrawingProperties()),
                 new Xdr.Transform(
                     new A.Offset { X = 0L, Y = 0L },
@@ -259,52 +285,47 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.Services
                         new C.ChartReference { Id = chartRelationshipId })
                     { Uri = "http://schemas.openxmlformats.org/drawingml/2006/chart" }));
 
-            var anchor = new Xdr.TwoCellAnchor(
+            drawingsPart.WorksheetDrawing.Append(new Xdr.TwoCellAnchor(
                 new Xdr.FromMarker(
                     new Xdr.ColumnId("6"),
                     new Xdr.ColumnOffset("0"),
-                    new Xdr.RowId("1"),
+                    new Xdr.RowId(fromRow.ToString(CultureInfo.InvariantCulture)),
                     new Xdr.RowOffset("0")),
                 new Xdr.ToMarker(
                     new Xdr.ColumnId("15"),
                     new Xdr.ColumnOffset("0"),
-                    new Xdr.RowId("23"),
+                    new Xdr.RowId(toRow.ToString(CultureInfo.InvariantCulture)),
                     new Xdr.RowOffset("0")),
                 graphicFrame,
-                new Xdr.ClientData());
+                new Xdr.ClientData()));
-
-            drawingsPart.WorksheetDrawing.Append(anchor);
-            drawingsPart.WorksheetDrawing.Save();
-            worksheetPart.Worksheet.Save();
         }
 
-        private static C.ChartSpace CreateChartSpace(int lastRow)
+        private static C.ChartSpace CreateForceAndCoefficientChartSpace(int lastRow)
         {
             const uint xAxisId = 48650112U;
-            const uint yAxisId = 48672768U;
+            const uint forceAxisId = 48672768U;
             const uint coefficientAxisId = 48689152U;
 
             var forceChart = new C.ScatterChart(
                 new C.ScatterStyle { Val = C.ScatterStyleValues.LineMarker },
-                CreateSeries(0, "正压力(N)", 2, lastRow),
+                CreateSeries(0, 2, lastRow),
-                CreateSeries(1, "摩擦力(N)", 3, lastRow),
+                CreateSeries(1, 3, lastRow),
-                CreateSeries(2, "位移量(mm)", 4, lastRow),
                 new C.AxisId { Val = xAxisId },
-                new C.AxisId { Val = yAxisId });
+                new C.AxisId { Val = forceAxisId });
             var coefficientChart = new C.ScatterChart(
                 new C.ScatterStyle { Val = C.ScatterStyleValues.LineMarker },
-                CreateSeries(3, "摩擦系数", 5, lastRow),
+                CreateSeries(2, 5, lastRow),
                 new C.AxisId { Val = xAxisId },
                 new C.AxisId { Val = coefficientAxisId });
 
             var chart = new C.Chart(
-                CreateTitle("防滑性能实时曲线"),
+                CreateTitle("防滑性能滑动阶段曲线"),
                 new C.PlotArea(
                     new C.Layout(),
                     forceChart,
                     coefficientChart,
-                    CreateValueAxis(xAxisId, yAxisId, C.AxisPositionValues.Bottom, "时间(s)"),
+                    CreateValueAxis(xAxisId, forceAxisId, C.AxisPositionValues.Bottom, "滑动开始后时间(s)"),
-                    CreateValueAxis(yAxisId, xAxisId, C.AxisPositionValues.Left, "载荷 / 摩擦力 / 位移"),
+                    CreateValueAxis(forceAxisId, xAxisId, C.AxisPositionValues.Left, "垂直载荷 / 水平摩擦力 (N)"),
                     CreateValueAxis(coefficientAxisId, xAxisId, C.AxisPositionValues.Right, "摩擦系数")),
                 new C.Legend(
                     new C.LegendPosition { Val = C.LegendPositionValues.Bottom },
@@ -316,7 +337,35 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.Services
                 chart);
         }
 
-        private static C.ScatterChartSeries CreateSeries(uint index, string title, int yColumnIndex, int lastRow)
+        private static C.ChartSpace CreateDisplacementChartSpace(int lastRow)
+        {
+            const uint xAxisId = 48700112U;
+            const uint displacementAxisId = 48722768U;
+
+            var displacementChart = new C.ScatterChart(
+                new C.ScatterStyle { Val = C.ScatterStyleValues.LineMarker },
+                CreateSeries(0, 4, lastRow),
+                new C.AxisId { Val = xAxisId },
+                new C.AxisId { Val = displacementAxisId });
+
+            var chart = new C.Chart(
+                CreateTitle("滑动位移"),
+                new C.PlotArea(
+                    new C.Layout(),
+                    displacementChart,
+                    CreateValueAxis(xAxisId, displacementAxisId, C.AxisPositionValues.Bottom, "滑动开始后时间(s)"),
+                    CreateValueAxis(displacementAxisId, xAxisId, C.AxisPositionValues.Left, "滑动位移 (mm)")),
+                new C.Legend(
+                    new C.LegendPosition { Val = C.LegendPositionValues.Bottom },
+                    new C.Layout()),
+                new C.PlotVisibleOnly { Val = true });
+
+            return new C.ChartSpace(
+                new C.EditingLanguage { Val = "zh-CN" },
+                chart);
+        }
+
+        private static C.ScatterChartSeries CreateSeries(uint index, int yColumnIndex, int lastRow)
         {
             var sheet = EscapeSheetName(DataSheetName);
             var xFormula = $"'{sheet}'!$A$2:$A${lastRow}";
@@ -338,12 +387,12 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.Services
                 new C.AxisId { Val = axisId },
                 new C.Scaling(new C.Orientation { Val = C.OrientationValues.MinMax }),
                 new C.AxisPosition { Val = position },
+                new C.MajorGridlines(),
                 CreateTitle(title),
                 new C.NumberingFormat { FormatCode = "0.00", SourceLinked = false },
-                new C.MajorGridlines(),
+                new C.TickLabelPosition { Val = C.TickLabelPositionValues.NextTo },
                 new C.CrossingAxis { Val = crossingAxisId },
-                new C.Crosses { Val = C.CrossesValues.AutoZero },
+                new C.Crosses { Val = C.CrossesValues.AutoZero });
-                new C.TickLabelPosition { Val = C.TickLabelPositionValues.NextTo });
 
         private static C.Title CreateTitle(string text) =>
             new(

Footwear Test methodsfor wholeshoe Slipresistanceperformance/ViewModels/MainWindowViewModel.cs

@@ -65,6 +65,7 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
         private List<SlipDataPoint> lastCompletedRun = [];
         private DateTime lastRealtimeCurveTraceLoggedAt = DateTime.MinValue;
         private double runStartDisplacementMm;
+        private double slidingStartDisplacementMm;
         private double? slidingStartTimeSeconds;
 
         [ObservableProperty]
@@ -224,7 +225,7 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
         [
             new Axis
             {
-                Name = "压力 / 摩擦力 / 位移",
+                Name = "垂直载荷 / 水平摩擦力 (N)",
                 MinLimit = 0,
                 SeparatorsPaint = new SolidColorPaint(SKColor.Parse("#D7E0EA")) { StrokeThickness = 1 },
                 SubseparatorsPaint = new SolidColorPaint(SKColor.Parse("#EEF3F8")) { StrokeThickness = 1 },
@@ -236,6 +237,18 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
                 Padding = new LiveChartsCore.Drawing.Padding(2, 2, 3, 2)
             },
             new Axis
+            {
+                Name = "滑动位移 (mm)",
+                Position = LiveChartsCore.Measure.AxisPosition.End,
+                MinLimit = 0,
+                LabelsPaint = new SolidColorPaint(SKColor.Parse("#1D4ED8")),
+                NamePaint = new SolidColorPaint(SKColor.Parse("#1D4ED8")),
+                SeparatorsPaint = null,
+                TextSize = 11,
+                NameTextSize = 12,
+                Padding = new LiveChartsCore.Drawing.Padding(3, 2, 2, 2)
+            },
+            new Axis
             {
                 Name = "摩擦系数",
                 Position = LiveChartsCore.Measure.AxisPosition.End,
@@ -243,7 +256,7 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
                 UnitWidth = 0.1,
                 LabelsPaint = new SolidColorPaint(SKColor.Parse("#7E22CE")),
                 NamePaint = new SolidColorPaint(SKColor.Parse("#7E22CE")),
-                SeparatorsPaint = new SolidColorPaint(SKColor.Parse("#F1E7FF")) { StrokeThickness = 1 },
+                SeparatorsPaint = null,
                 TextSize = 11,
                 NameTextSize = 12,
                 Padding = new LiveChartsCore.Drawing.Padding(3, 2, 2, 2)
@@ -255,10 +268,10 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
             Log.Information("初始化主页面 ViewModel");
             Series =
             [
-                CreateLineSeries("垂直压力(N)", verticalLoadPoints, "#DC2626", 0, 0),
+                CreateLineSeries("垂直载荷(N)", verticalLoadPoints, "#DC2626", 0),
-                CreateLineSeries("水平摩擦力(N)", horizontalFrictionPoints, "#16A34A", 0, 0),
+                CreateLineSeries("水平摩擦力(N)", horizontalFrictionPoints, "#16A34A", 0),
-                CreateLineSeries("摩擦系数", frictionCoefficientPoints, "#C026D3", 1, 0),
+                CreateLineSeries("滑动位移(mm)", displacementPoints, "#2563EB", 1),
-                CreateLineSeries("位移(mm)", displacementPoints, "#2563EB", 0, 0)
+                CreateLineSeries("摩擦系数", frictionCoefficientPoints, "#C026D3", 2)
             ];
 
             LoadDeviceSettings();
@@ -681,13 +694,14 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
             frictionCoefficientPoints.Clear();
             displacementPoints.Clear();
             runStartDisplacementMm = deviceService.CurrentSnapshot.DisplacementMm;
+            slidingStartDisplacementMm = runStartDisplacementMm;
             slidingStartTimeSeconds = null;
             runStopwatch.Restart();
             UploadProgress = 0;
             lastRealtimeCurveTraceLoggedAt = DateTime.MinValue;
-            CurrentStatus = "测试运行：按标准采集垂直载荷、摩擦力、位移与摩擦系数";
+            CurrentStatus = "测试运行：等待检测有效滑动开始，曲线尚未记录";
             Log.Information(
-                "测试开始：TestNumber={TestNumber}, TargetLoad={TargetLoad}, TestSpeed={TestSpeed}, StartDisplacement={StartDisplacement:F3}mm",
+                "测试开始：TestNumber={TestNumber}, TargetLoad={TargetLoad}, TestSpeed={TestSpeed}, StartDisplacement={StartDisplacement:F3}mm, CurveRecording=等待有效滑动开始",
                 TestNumber,
                 TargetLoadText,
                 TestSpeedText,
@@ -696,26 +710,40 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
 
         private void RecordPoint(SlipDeviceSnapshot device)
         {
-            var time = runStopwatch.Elapsed.TotalSeconds;
+            var elapsedSinceTestStart = runStopwatch.Elapsed.TotalSeconds;
-            if (currentRun.Count > 0 && time - currentRun[^1].TimeSeconds < SampleIntervalSeconds)
+            var detectionPoint = new SlipDataPoint(
+                device.Timestamp,
+                elapsedSinceTestStart,
+                device.VerticalLoadN,
+                device.HorizontalFrictionN,
+                device.DisplacementMm,
+                device.FrictionCoefficient);
+
+            TryMarkSlidingStart(detectionPoint);
+            if (!slidingStartTimeSeconds.HasValue)
+            {
+                return;
+            }
+
+            var standardTime = Math.Max(0, elapsedSinceTestStart - slidingStartTimeSeconds.Value);
+            if (currentRun.Count > 0 && standardTime - currentRun[^1].TimeSeconds < SampleIntervalSeconds)
             {
                 return;
             }
 
             var point = new SlipDataPoint(
                 device.Timestamp,
-                time,
+                standardTime,
                 device.VerticalLoadN,
                 device.HorizontalFrictionN,
-                device.DisplacementMm,
+                Math.Abs(device.DisplacementMm - slidingStartDisplacementMm),
                 device.FrictionCoefficient);
 
-            TryMarkSlidingStart(point);
             currentRun.Add(point);
-            verticalLoadPoints.Add(new ObservablePoint(time, point.VerticalLoadN));
+            verticalLoadPoints.Add(new ObservablePoint(standardTime, point.VerticalLoadN));
-            horizontalFrictionPoints.Add(new ObservablePoint(time, point.HorizontalFrictionN));
+            horizontalFrictionPoints.Add(new ObservablePoint(standardTime, point.HorizontalFrictionN));
-            frictionCoefficientPoints.Add(new ObservablePoint(time, point.FrictionCoefficient));
+            displacementPoints.Add(new ObservablePoint(standardTime, point.DisplacementMm));
-            displacementPoints.Add(new ObservablePoint(time, point.DisplacementMm));
+            frictionCoefficientPoints.Add(new ObservablePoint(standardTime, point.FrictionCoefficient));
 
             UploadProgress = Math.Min(99, currentRun.Count);
             TraceRealtimeCurvePoint(point);
@@ -725,51 +753,52 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
         {
             runStopwatch.Stop();
             LogRealtimeCurveSummary("测试停止");
+            if (!slidingStartTimeSeconds.HasValue)
+            {
+                Log.Warning(
+                    "测试停止但未检测到有效滑动开始：TestNumber={TestNumber}, StartDisplacement={StartDisplacement:F3}mm, DisplacementThreshold={DisplacementThreshold:F3}mm, MinimumAnalysisLoad={MinimumAnalysisLoad:F3}N, CurvePointCount={CurvePointCount}",
+                    TestNumber,
+                    runStartDisplacementMm,
+                    SlidingStartDisplacementThresholdMm,
+                    GetMinimumAnalysisLoad(),
+                    currentRun.Count);
+                CurrentStatus = "测试已停止，但未检测到有效滑动开始，曲线未记录且未生成结果";
+                return;
+            }
+
             if (currentRun.Count < 3)
             {
-                Log.Warning("测试停止但采样点不足：TestNumber={TestNumber}, PointCount={PointCount}", TestNumber, currentRun.Count);
+                Log.Warning(
+                    "测试停止但滑动后采样点不足：TestNumber={TestNumber}, SlidingDetectionDelay={SlidingDetectionDelay:F3}s, PointCount={PointCount}",
+                    TestNumber,
+                    slidingStartTimeSeconds.Value,
+                    currentRun.Count);
                 CurrentStatus = "测试已停止，但有效采样点不足，未生成结果";
                 return;
             }
 
             lastCompletedRun = currentRun.ToList();
             var minimumAnalysisLoad = GetMinimumAnalysisLoad();
-            if (!TryFindSlidingStart(currentRun, runStartDisplacementMm, minimumAnalysisLoad, out var slidingStartPoint))
+            const double slidingStartTime = 0;
-            {
+            var staticPeak = FindStaticPeak(currentRun);
-                Log.Warning(
-                    "测试停止但未检测到有效滑动开始：TestNumber={TestNumber}, PointCount={PointCount}, StartDisplacement={StartDisplacement:F3}mm, DisplacementThreshold={DisplacementThreshold:F3}mm, MinimumAnalysisLoad={MinimumAnalysisLoad:F3}N, FirstSample={FirstSample}, LastSample={LastSample}",
-                    TestNumber,
-                    currentRun.Count,
-                    runStartDisplacementMm,
-                    SlidingStartDisplacementThresholdMm,
-                    minimumAnalysisLoad,
-                    FormatDataPoint(currentRun[0]),
-                    FormatDataPoint(currentRun[^1]));
-                CurrentStatus = "测试已停止，但未检测到有效滑动开始，未生成结果";
-                return;
-            }
-
-            var slidingStartTime = slidingStartPoint.TimeSeconds;
-            var staticPeak = FindStaticPeak(currentRun, slidingStartTime);
             var peak = staticPeak.Point;
-            var dynamicWindowStart = slidingStartTime + DynamicWindowStartSeconds;
-            var dynamicWindowEnd = slidingStartTime + DynamicWindowEndSeconds;
             var dynamicWindow = currentRun
-                .Where(point => point.TimeSeconds >= dynamicWindowStart && point.TimeSeconds <= dynamicWindowEnd)
+                .Where(IsInDynamicWindow)
                 .ToList();
             if (dynamicWindow.Count < MinimumDynamicWindowPointCount)
             {
                 var firstWindowPoint = dynamicWindow.FirstOrDefault();
                 var lastWindowPoint = dynamicWindow.LastOrDefault();
                 Log.Warning(
-                    "测试停止但动摩擦窗口采样点不足：TestNumber={TestNumber}, PointCount={PointCount}, SlidingStartTime={SlidingStartTime:F3}s, DynamicWindow=滑动开始后0.300-0.600s, DynamicWindowPointCount={DynamicWindowPointCount}, RequiredPointCount={RequiredPointCount}, ActualWindowStart={ActualWindowStart}, ActualWindowEnd={ActualWindowEnd}, FirstSampleTime={FirstSampleTime:F3}s, LastSampleTime={LastSampleTime:F3}s",
+                    "测试停止但动摩擦窗口采样点不足：TestNumber={TestNumber}, PointCount={PointCount}, SlidingDetectionDelay={SlidingDetectionDelay:F3}s, StandardTimeOrigin={StandardTimeOrigin:F3}s, DynamicWindow=滑动开始后0.300-0.600s, DynamicWindowPointCount={DynamicWindowPointCount}, RequiredPointCount={RequiredPointCount}, ActualWindowStart={ActualWindowStart}, ActualWindowEnd={ActualWindowEnd}, FirstSampleTime={FirstSampleTime:F3}s, LastSampleTime={LastSampleTime:F3}s",
                     TestNumber,
                     currentRun.Count,
+                    slidingStartTimeSeconds.Value,
                     slidingStartTime,
                     dynamicWindow.Count,
                     MinimumDynamicWindowPointCount,
-                    FormatRelativeTime(firstWindowPoint, slidingStartTime),
+                    FormatStandardTime(firstWindowPoint),
-                    FormatRelativeTime(lastWindowPoint, slidingStartTime),
+                    FormatStandardTime(lastWindowPoint),
                     currentRun[0].TimeSeconds,
                     currentRun[^1].TimeSeconds);
                 CurrentStatus = "测试已停止，0.3 s~0.6 s 有效采样点不足，未生成结果";
@@ -782,9 +811,9 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
             if (peak.VerticalLoadN < minimumAnalysisLoad || dynamicLoad < minimumAnalysisLoad)
             {
                 Log.Warning(
-                    "测试停止但静/动摩擦窗口载荷不足：TestNumber={TestNumber}, SlidingStartTime={SlidingStartTime:F3}s, MinimumAnalysisLoad={MinimumAnalysisLoad:F3}N, StaticLoad={StaticLoad:F3}N, DynamicAvgLoad={DynamicAvgLoad:F3}N, StaticPoint={StaticPoint}, DynamicPointCount={DynamicPointCount}",
+                    "测试停止但静/动摩擦窗口载荷不足：TestNumber={TestNumber}, SlidingDetectionDelay={SlidingDetectionDelay:F3}s, MinimumAnalysisLoad={MinimumAnalysisLoad:F3}N, StaticLoad={StaticLoad:F3}N, DynamicAvgLoad={DynamicAvgLoad:F3}N, StaticPoint={StaticPoint}, DynamicPointCount={DynamicPointCount}",
                     TestNumber,
-                    slidingStartTime,
+                    slidingStartTimeSeconds.Value,
                     minimumAnalysisLoad,
                     peak.VerticalLoadN,
                     dynamicLoad,
@@ -798,19 +827,20 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
             var verdict = NeedsRetest(staticCoefficientValue, dynamicCoefficientValue) ? "需重测" : "有效";
             var nextIndex = Samples.Count == 0 ? 1 : Samples.Max(sample => sample.Index) + 1;
             var peakIndex = currentRun.IndexOf(peak) + 1;
-            var dynamicStart = dynamicWindow[0].TimeSeconds - slidingStartTime;
+            var dynamicStart = dynamicWindow[0].TimeSeconds;
-            var dynamicEnd = dynamicWindow[^1].TimeSeconds - slidingStartTime;
+            var dynamicEnd = dynamicWindow[^1].TimeSeconds;
 
             Log.Information(
-                "静/动摩擦计算明细：TestNumber={TestNumber}, PointCount={PointCount}, SlidingStartTime={SlidingStartTime:F3}s, SlidingStartDisplacement={SlidingStartDisplacement:F3}mm, StaticSearchWindow=滑动开始后首个峰值0.000-{StaticSearchEnd:F3}s, StaticPeakMode={StaticPeakMode}, StaticPointIndex={StaticPointIndex}, StaticTime={StaticTime:F3}s, StaticFriction={StaticFriction:F3}N, StaticLoad={StaticLoad:F3}N, StaticCoefficient={StaticCoefficient:F5}, DynamicWindow=滑动开始后{DynamicWindowStart:F3}-{DynamicWindowEnd:F3}s, DynamicActualWindow={DynamicActualStart:F3}-{DynamicActualEnd:F3}s, DynamicPointCount={DynamicPointCount}, DynamicAvgFriction={DynamicAvgFriction:F3}N, DynamicAvgLoad={DynamicAvgLoad:F3}N, DynamicCoefficient={DynamicCoefficient:F5}",
+                "静/动摩擦计算明细：TestNumber={TestNumber}, PointCount={PointCount}, SlidingDetectionDelay={SlidingDetectionDelay:F3}s, StandardTimeOrigin={StandardTimeOrigin:F3}s, AbsoluteSlidingStartDisplacement={AbsoluteSlidingStartDisplacement:F3}mm, StaticSearchWindow=滑动开始后首个峰值0.000-{StaticSearchEnd:F3}s, StaticPeakMode={StaticPeakMode}, StaticPointIndex={StaticPointIndex}, StaticTime={StaticTime:F3}s, StaticFriction={StaticFriction:F3}N, StaticLoad={StaticLoad:F3}N, StaticCoefficient={StaticCoefficient:F5}, DynamicWindow=滑动开始后{DynamicWindowStart:F3}-{DynamicWindowEnd:F3}s, DynamicActualWindow={DynamicActualStart:F3}-{DynamicActualEnd:F3}s, DynamicPointCount={DynamicPointCount}, DynamicAvgFriction={DynamicAvgFriction:F3}N, DynamicAvgLoad={DynamicAvgLoad:F3}N, DynamicCoefficient={DynamicCoefficient:F5}",
                 TestNumber,
                 currentRun.Count,
+                slidingStartTimeSeconds.Value,
                 slidingStartTime,
-                slidingStartPoint.DisplacementMm,
+                slidingStartDisplacementMm,
                 StaticPeakSearchEndSeconds,
                 staticPeak.Mode,
                 peakIndex,
-                peak.TimeSeconds - slidingStartTime,
+                peak.TimeSeconds,
                 peak.HorizontalFrictionN,
                 peak.VerticalLoadN,
                 staticCoefficientValue,
@@ -924,12 +954,15 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
             }
 
             slidingStartTimeSeconds = point.TimeSeconds;
+            slidingStartDisplacementMm = point.DisplacementMm;
+            CurrentStatus = "已检测到有效滑动开始：曲线从 0.000 s 开始记录";
             Log.Information(
-                "检测到有效滑动开始：TestNumber={TestNumber}, SlidingStartTime={SlidingStartTime:F3}s, StartDisplacement={StartDisplacement:F3}mm, CurrentDisplacement={CurrentDisplacement:F3}mm, DisplacementDelta={DisplacementDelta:F3}mm, VerticalLoad={VerticalLoad:F3}N, MinimumAnalysisLoad={MinimumAnalysisLoad:F3}N",
+                "检测到有效滑动开始并建立曲线零点：TestNumber={TestNumber}, SlidingStartTime={SlidingStartTime:F3}s, SlidingDetectionDelay={SlidingDetectionDelay:F3}s, StandardTimeOrigin=0.000s, StartDisplacement={StartDisplacement:F3}mm, SlidingStartDisplacement={SlidingStartDisplacement:F3}mm, DisplacementDelta={DisplacementDelta:F3}mm, VerticalLoad={VerticalLoad:F3}N, MinimumAnalysisLoad={MinimumAnalysisLoad:F3}N",
                 TestNumber,
                 point.TimeSeconds,
+                point.TimeSeconds,
                 runStartDisplacementMm,
-                point.DisplacementMm,
+                slidingStartDisplacementMm,
                 Math.Abs(point.DisplacementMm - runStartDisplacementMm),
                 point.VerticalLoadN,
                 minimumAnalysisLoad);
@@ -948,34 +981,15 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
             return double.TryParse(numeric, NumberStyles.Float, CultureInfo.InvariantCulture, out load);
         }
 
-        private static bool TryFindSlidingStart(
-            IReadOnlyList<SlipDataPoint> points,
-            double startDisplacementMm,
-            double minimumAnalysisLoad,
-            out SlipDataPoint slidingStartPoint)
-        {
-            foreach (var point in points)
-            {
-                if (IsSlidingStartPoint(point, startDisplacementMm, minimumAnalysisLoad))
-                {
-                    slidingStartPoint = point;
-                    return true;
-                }
-            }
-
-            slidingStartPoint = points[0];
-            return false;
-        }
-
         private static bool IsSlidingStartPoint(SlipDataPoint point, double startDisplacementMm, double minimumAnalysisLoad) =>
             point.VerticalLoadN >= minimumAnalysisLoad
             && Math.Abs(point.DisplacementMm - startDisplacementMm) >= SlidingStartDisplacementThresholdMm;
 
-        private static StaticPeakSelection FindStaticPeak(IReadOnlyList<SlipDataPoint> points, double slidingStartTime)
+        private static StaticPeakSelection FindStaticPeak(IReadOnlyList<SlipDataPoint> points)
         {
             var searchWindow = points
-                .Where(point => point.TimeSeconds >= slidingStartTime
+                .Where(point => point.TimeSeconds >= 0
-                    && point.TimeSeconds <= slidingStartTime + StaticPeakSearchEndSeconds)
+                    && point.TimeSeconds <= StaticPeakSearchEndSeconds)
                 .ToList();
             if (searchWindow.Count == 0)
             {
@@ -1110,12 +1124,12 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
                 TestNumber,
                 expectedCount,
                 point.TimeSeconds,
-                FormatRelativeTime(point, slidingStartTimeSeconds),
+                FormatStandardTime(point),
                 point.VerticalLoadN,
                 point.HorizontalFrictionN,
                 point.FrictionCoefficient,
                 point.DisplacementMm,
-                IsInDynamicWindow(point, slidingStartTimeSeconds),
+                IsInDynamicWindow(point),
                 expectedCount);
         }
 
@@ -1133,26 +1147,16 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
         private static string FormatNullable(double? value) =>
             value.HasValue ? value.Value.ToString("F3", CultureInfo.InvariantCulture) : "null";
 
-        private static string FormatRelativeTime(SlipDataPoint? point, double? startTime) =>
+        private static string FormatStandardTime(SlipDataPoint? point) =>
-            point is null || !startTime.HasValue
+            point is null ? "null" : point.TimeSeconds.ToString("F3", CultureInfo.InvariantCulture);
-                ? "null"
-                : (point.TimeSeconds - startTime.Value).ToString("F3", CultureInfo.InvariantCulture);
 
-        private static bool IsInDynamicWindow(SlipDataPoint point, double? startTime)
+        private static bool IsInDynamicWindow(SlipDataPoint point) =>
-        {
+            point.TimeSeconds >= DynamicWindowStartSeconds && point.TimeSeconds <= DynamicWindowEndSeconds;
-            if (!startTime.HasValue)
-            {
-                return false;
-            }
-
-            var standardTime = point.TimeSeconds - startTime.Value;
-            return standardTime >= DynamicWindowStartSeconds && standardTime <= DynamicWindowEndSeconds;
-        }
 
         private static string FormatDataPoint(SlipDataPoint? point) =>
             point is null
                 ? "null"
-                : $"Time={point.TimeSeconds.ToString("F3", CultureInfo.InvariantCulture)}s, Vertical={point.VerticalLoadN.ToString("F3", CultureInfo.InvariantCulture)}N, Friction={point.HorizontalFrictionN.ToString("F3", CultureInfo.InvariantCulture)}N, Coefficient={point.FrictionCoefficient.ToString("F5", CultureInfo.InvariantCulture)}, Displacement={point.DisplacementMm.ToString("F3", CultureInfo.InvariantCulture)}mm";
+                : $"StandardTime={point.TimeSeconds.ToString("F3", CultureInfo.InvariantCulture)}s, Vertical={point.VerticalLoadN.ToString("F3", CultureInfo.InvariantCulture)}N, Friction={point.HorizontalFrictionN.ToString("F3", CultureInfo.InvariantCulture)}N, Coefficient={point.FrictionCoefficient.ToString("F5", CultureInfo.InvariantCulture)}, SlidingDisplacement={point.DisplacementMm.ToString("F3", CultureInfo.InvariantCulture)}mm";
 
         private async Task RunDeviceCommand(Task command, string successMessage)
         {
@@ -1394,8 +1398,7 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
             string name,
             ObservableCollection<ObservablePoint> values,
             string color,
-            int yAxis,
+            int yAxis) =>
-            double smoothness) =>
             new()
             {
                 Name = name,
@@ -1407,7 +1410,7 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.ViewModel
                 GeometryFill = null,
                 GeometryStroke = null,
                 GeometrySize = 0,
-                LineSmoothness = smoothness,
+                LineSmoothness = 0,
                 ScalesYAt = yAxis
             };