From e8a16f6a3c51dab19a2b682d930aed71b1a9e93e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E4=BC=9F?= <wei.lw.li@hexagon.com>
Date: Mon, 27 Apr 2026 13:37:00 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B0=94=E6=B3=A1=E6=B5=8B=E9=87=8F=EF=BC=9A?=
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---
 XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml    | 3 ++-
 XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml.cs | 5 +++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml b/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml
index bcd5849..b9909d9 100644
--- a/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml
+++ b/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml
@@ -21,7 +21,7 @@
         <Separator Margin="0,6" />
 
         <!-- 阈值 -->
-        <TextBlock Text="灰度阈值" Margin="0,0,0,4" />
+        <TextBlock Text="灰度阈值（与点击点的最大灰度差）" Margin="0,0,0,4" FontSize="11" Foreground="Gray" />
         <DockPanel>
             <TextBox x:Name="TbThreshold" DockPanel.Dock="Right" Width="45" Text="128"
                      VerticalContentAlignment="Center" Margin="6,0,0,0" />
@@ -51,6 +51,7 @@
 
         <!-- 操作按钮 -->
         <WrapPanel HorizontalAlignment="Center">
+            <Button Content="撤销" Padding="12,4" Margin="0,0,8,0" Click="Undo_Click" />
             <Button Content="清除标记" Padding="12,4" Margin="0,0,8,0" Click="ClearMask_Click" />
             <Button Content="完成" Padding="12,4" Click="Finish_Click" />
         </WrapPanel>
diff --git a/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml.cs b/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml.cs
index c7f9323..58ba847 100644
--- a/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml.cs
+++ b/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml.cs
@@ -72,6 +72,11 @@ namespace XplorePlane.Views.ImageProcessing
             TbResult.Text = "空隙率: --";
         }
 
+        private void Undo_Click(object sender, RoutedEventArgs e)
+        {
+            _canvas?.UndoBubble();
+        }
+
         private void Finish_Click(object sender, RoutedEventArgs e)
         {
             Close();