测量工具标号：各类测量标签显示序号，删除后自动重编号

XP.ImageProcessing.RoiControl/Controls/PolygonRoiCanvas.xaml.cs

@@ -456,6 +456,7 @@ namespace XP.ImageProcessing.RoiControl.Controls
                 var g = CreatePPGroup(_pendingPoint.Value, pos);
                 _ppGroups.Add(g);
                 _measureOverlay.Children.Remove(_pendingDot);
+                RenumberAll();
                 _pendingDot = null; _pendingPoint = null;
                 RaiseMeasureCompleted(g.P1, g.P2, g.Distance, MeasureCount, "PointDistance");
                 CurrentMeasureMode = Models.MeasureMode.None;
@@ -506,7 +507,7 @@ namespace XP.ImageProcessing.RoiControl.Controls
                 // 完成：创建正式组，移除临时元素
                 var g = CreatePTLGroup(_ptlTempL1.Value, _ptlTempL2.Value, pos);
                 _ptlGroups.Add(g);
-
+                RenumberAll();
                 if (_ptlTempDot1 != null) _measureOverlay.Children.Remove(_ptlTempDot1);
                 if (_ptlTempDot2 != null) _measureOverlay.Children.Remove(_ptlTempDot2);
                 if (_ptlTempLine != null) _measureOverlay.Children.Remove(_ptlTempLine);
@@ -568,6 +569,7 @@ namespace XP.ImageProcessing.RoiControl.Controls
             {
                 var g = CreateAngleGroup(_angleTempV.Value, _angleTempA.Value, pos);
                 _angleGroups.Add(g);
+                RenumberAll();
 
                 // 移除临时元素
                 if (_angleTempVDot != null) _measureOverlay.Children.Remove(_angleTempVDot);
@@ -611,6 +613,7 @@ namespace XP.ImageProcessing.RoiControl.Controls
 
             var g = CreateFillRateGroup(e1, e2, e3, e4);
             _frGroups.Add(g);
+            RenumberAll();
 
             double rate = g.FillRate;
             RaiseMeasureCompleted(g.E3, g.E4, rate, MeasureCount, "FillRate");
@@ -808,6 +811,7 @@ namespace XP.ImageProcessing.RoiControl.Controls
                     foreach (var el in new UIElement[] { g.Dot1, g.Dot2, g.Line, g.Label })
                         _measureOverlay.Children.Remove(el);
                     _ppGroups.Remove(g);
+                    RenumberAll();
                     RaiseMeasureStatusChanged($"已删除测量 | 剩余 {MeasureCount} 条");
                     e.Handled = true; return;
                 }
@@ -820,6 +824,7 @@ namespace XP.ImageProcessing.RoiControl.Controls
                     foreach (var el in new UIElement[] { g.DotL1, g.DotL2, g.DotP, g.MainLine, g.ExtLine, g.PerpLine, g.FootDot, g.Label })
                         _measureOverlay.Children.Remove(el);
                     _ptlGroups.Remove(g);
+                    RenumberAll();
                     RaiseMeasureStatusChanged($"已删除测量 | 剩余 {MeasureCount} 条");
                     e.Handled = true; return;
                 }
@@ -832,6 +837,7 @@ namespace XP.ImageProcessing.RoiControl.Controls
                     foreach (var el in new UIElement[] { g.DotV, g.DotA, g.DotB, g.LineA, g.LineB, g.Arc, g.Label })
                         _measureOverlay.Children.Remove(el);
                     _angleGroups.Remove(g);
+                    RenumberAll();
                     RaiseMeasureStatusChanged($"已删除测量 | 剩余 {MeasureCount} 条");
                     e.Handled = true; return;
                 }
@@ -847,12 +853,40 @@ namespace XP.ImageProcessing.RoiControl.Controls
                     foreach (var el in g.AllElements)
                         _measureOverlay.Children.Remove(el);
                     _frGroups.Remove(g);
+                    RenumberAll();
                     RaiseMeasureStatusChanged($"已删除测量 | 剩余 {MeasureCount} 条");
                     e.Handled = true; return;
                 }
             }
         }
 
+        // ── 重编号 ──
+
+        private void RenumberAll()
+        {
+            for (int i = 0; i < _ppGroups.Count; i++)
+            {
+                _ppGroups[i].Index = i + 1;
+                _ppGroups[i].UpdateLine();
+                _ppGroups[i].UpdateLabel(FormatDistance(_ppGroups[i].Distance));
+            }
+            for (int i = 0; i < _ptlGroups.Count; i++)
+            {
+                _ptlGroups[i].Index = i + 1;
+                _ptlGroups[i].UpdateVisuals(FormatDistance(_ptlGroups[i].Distance));
+            }
+            for (int i = 0; i < _angleGroups.Count; i++)
+            {
+                _angleGroups[i].Index = i + 1;
+                _angleGroups[i].UpdateVisuals();
+            }
+            for (int i = 0; i < _frGroups.Count; i++)
+            {
+                _frGroups[i].Index = i + 1;
+                _frGroups[i].UpdateVisuals();
+            }
+        }
+
         // ── 填锡率阈值编辑 ──
 
         private TextBox _thtEditBox;

XP.ImageProcessing.RoiControl/Models/AngleGroup.cs

@@ -19,6 +19,7 @@ namespace XP.ImageProcessing.RoiControl.Models
         public Point V { get; set; }
         public Point A { get; set; }
         public Point B { get; set; }
+        public int Index { get; set; }
 
         public double AngleDeg
         {
@@ -77,7 +78,7 @@ namespace XP.ImageProcessing.RoiControl.Models
                 midAngle += Math.PI;
 
             double labelDist = arcRadius + 16;
-            Label.Text = $"{angleDeg:F1}°";
+            Label.Text = (Index > 0 ? $"#{Index} " : "") + $"{angleDeg:F1}°";
             Canvas.SetLeft(Label, V.X + labelDist * Math.Cos(midAngle) - 15);
             Canvas.SetTop(Label, V.Y + labelDist * Math.Sin(midAngle) - 8);
             Label.Visibility = Visibility.Visible;

XP.ImageProcessing.RoiControl/Models/FillRateGroup.cs

@@ -58,6 +58,7 @@ namespace XP.ImageProcessing.RoiControl.Models
         public double E4Angle { get; set; }
 
         public double THTLimit { get; set; } = 75.0;
+        public int Index { get; set; }
 
         public double FillRate
         {
@@ -100,7 +101,7 @@ namespace XP.ImageProcessing.RoiControl.Models
 
             double rate = FillRate;
             string cls = Classification;
-            Label.Text = $"Fill: {rate:F1}% | THTLimit: {THTLimit:F1}% | {cls}";
+            Label.Text = (Index > 0 ? $"#{Index} " : "") + $"Fill: {rate:F1}% | THTLimit: {THTLimit:F1}% | {cls}";
             Label.Foreground = cls == "PASS" ? Brushes.Lime : Brushes.Red;
             double labelX = Math.Max(Math.Max(E1.X, E2.X), Math.Max(E3.X, E4.X)) + 15;
             double labelY = (E1.Y + E2.Y) / 2;

XP.ImageProcessing.RoiControl/Models/MeasureGroup.cs

@@ -34,10 +34,12 @@ namespace XP.ImageProcessing.RoiControl.Models
 
         public void UpdateLabel(string distanceText = null)
         {
-            Label.Text = distanceText ?? $"{Distance:F2} px";
+            Label.Text = (Index > 0 ? $"#{Index} " : "") + (distanceText ?? $"{Distance:F2} px");
             Canvas.SetLeft(Label, (P1.X + P2.X) / 2 + 8);
             Canvas.SetTop(Label, (P1.Y + P2.Y) / 2 - 18);
             Label.Visibility = Visibility.Visible;
         }
+
+        public int Index { get; set; }
     }
 }

XP.ImageProcessing.RoiControl/Models/PointToLineGroup.cs

@@ -20,6 +20,7 @@ namespace XP.ImageProcessing.RoiControl.Models
         public Point L1 { get; set; }
         public Point L2 { get; set; }
         public Point P { get; set; }
+        public int Index { get; set; }
 
         public double Distance
         {
@@ -85,7 +86,7 @@ namespace XP.ImageProcessing.RoiControl.Models
             FootDot.Visibility = Visibility.Visible;
 
             // 标签
-            Label.Text = distanceText ?? $"{Distance:F2} px";
+            Label.Text = (Index > 0 ? $"#{Index} " : "") + (distanceText ?? $"{Distance:F2} px");
             Canvas.SetLeft(Label, (P.X + foot.X) / 2 + 8);
             Canvas.SetTop(Label, (P.Y + foot.Y) / 2 - 18);
             Label.Visibility = Visibility.Visible;