BGA手动空隙测量：画气泡圆+焊球圆交互、拖拽调整、空隙率计算、VoidLimit编辑、右键删除

XP.ImageProcessing.RoiControl/Models/BgaVoidGroup.cs

@@ -0,0 +1,87 @@
+using System;
+using System.Collections.Generic;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Media;
+using System.Windows.Shapes;
+
+namespace XP.ImageProcessing.RoiControl.Models
+{
+    /// <summary>BGA 空隙测量中的一个圆（气泡或焊球）</summary>
+    public class BgaCircle
+    {
+        public Ellipse Shape { get; set; }      // 圆形轮廓
+        public Ellipse CenterDot { get; set; }  // 中心拖拽点
+        public Ellipse EdgeDot { get; set; }    // 边缘拖拽点（调半径）
+        public Point Center { get; set; }
+        public double Radius { get; set; }
+        public bool IsBall { get; set; }        // true=焊球, false=气泡
+
+        public double Area => Math.PI * Radius * Radius;
+
+        public void UpdateVisuals()
+        {
+            double d = Radius * 2;
+            Shape.Width = d; Shape.Height = d;
+            Canvas.SetLeft(Shape, Center.X - Radius);
+            Canvas.SetTop(Shape, Center.Y - Radius);
+
+            Canvas.SetLeft(CenterDot, Center.X - CenterDot.Width / 2);
+            Canvas.SetTop(CenterDot, Center.Y - CenterDot.Height / 2);
+
+            var edgePt = new Point(Center.X + Radius, Center.Y);
+            Canvas.SetLeft(EdgeDot, edgePt.X - EdgeDot.Width / 2);
+            Canvas.SetTop(EdgeDot, edgePt.Y - EdgeDot.Height / 2);
+        }
+    }
+
+    /// <summary>一次 BGA 空隙测量组（1个焊球 + N个气泡 + 标签）</summary>
+    public class BgaVoidGroup
+    {
+        public BgaCircle Ball { get; set; }
+        public List<BgaCircle> Voids { get; } = new();
+        public TextBlock Label { get; set; }
+        public int Index { get; set; }
+        public double VoidLimit { get; set; } = 25.0;
+
+        public double VoidRate
+        {
+            get
+            {
+                if (Ball == null || Ball.Area < 1) return 0;
+                double totalVoid = 0;
+                foreach (var v in Voids) totalVoid += v.Area;
+                return Math.Clamp(totalVoid / Ball.Area * 100.0, 0, 100);
+            }
+        }
+
+        public string Classification => VoidRate <= VoidLimit ? "PASS" : "FAIL";
+
+        public void UpdateLabel()
+        {
+            if (Label == null || Ball == null) return;
+            double rate = VoidRate;
+            string cls = Classification;
+            Label.Text = (Index > 0 ? $"#{Index} " : "") +
+                $"Void: {rate:F1}% | Limit: {VoidLimit:F1}% | {cls}";
+            Label.Foreground = cls == "PASS" ? Brushes.Lime : Brushes.Red;
+
+            Canvas.SetLeft(Label, Ball.Center.X + Ball.Radius + 10);
+            Canvas.SetTop(Label, Ball.Center.Y - 10);
+            Label.Visibility = Visibility.Visible;
+        }
+
+        /// <summary>获取所有 UI 元素</summary>
+        public List<UIElement> AllElements
+        {
+            get
+            {
+                var list = new List<UIElement>();
+                if (Ball != null) { list.Add(Ball.Shape); list.Add(Ball.CenterDot); list.Add(Ball.EdgeDot); }
+                foreach (var v in Voids) { list.Add(v.Shape); list.Add(v.CenterDot); list.Add(v.EdgeDot); }
+                if (Label != null) list.Add(Label);
+                return list;
+            }
+        }
+    }
+}

XP.ImageProcessing.RoiControl/Models/MeasureMode.cs

@@ -6,6 +6,7 @@ namespace XP.ImageProcessing.RoiControl.Models
         PointDistance,
         PointToLine,
         Angle,
-        FillRate
+        FillRate,
+        BgaVoid
     }
 }