From 5f0a91569e67e66a4f314033e20f0feb49f7ee6a Mon Sep 17 00:00:00 2001
From: lvjunjie <lvjunjie@abc.com>
Date: Wed, 28 Oct 2026 11:35:53 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E6=A8=A1=E5=9E=8B?=
 =?UTF-8?q?=E4=BD=8D=E7=BD=AE=E6=98=BE=E7=A4=BA=E6=9C=AA=E9=9A=8F=E9=BC=A0?=
 =?UTF-8?q?=E6=A0=87=E5=88=B7=E6=96=B0?=
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---
 Include/nmNum/nmPlot/nmPlotView.h | 3 +++
 Src/nmNum/nmPlot/nmPlotView.cpp   | 4 ++++
 2 files changed, 7 insertions(+)

diff --git a/Include/nmNum/nmPlot/nmPlotView.h b/Include/nmNum/nmPlot/nmPlotView.h
index 80c4633c..077c22d4 100644
--- a/Include/nmNum/nmPlot/nmPlotView.h
+++ b/Include/nmNum/nmPlot/nmPlotView.h
@@ -26,6 +26,9 @@ public slots:
 
 signals:
 
+    // 鼠标在绘图区内的位置，使用模型坐标。
+    void sigPointerPos(double x, double y);
+
 protected:
 
     // 拖拽支持
diff --git a/Src/nmNum/nmPlot/nmPlotView.cpp b/Src/nmNum/nmPlot/nmPlotView.cpp
index 3f10a045..e0f91f55 100644
--- a/Src/nmNum/nmPlot/nmPlotView.cpp
+++ b/Src/nmNum/nmPlot/nmPlotView.cpp
@@ -15,6 +15,8 @@ ZX_DEFINE_DYNAMIC(mPlotView, nmPlotView)
 
 nmPlotView::nmPlotView()
 {
+    // 未按下鼠标时也接收视口移动事件，实时更新模型位置。
+    viewport()->setMouseTracking(true);
 }
 
 void nmPlotView::onPrepareContextMenu(QMenu* pMenu,
@@ -140,6 +142,8 @@ void nmPlotView::mouseMoveEvent(QMouseEvent* e)
             // 状态栏
             if (rt.contains(pos))
             {
+                // 复用坐标轴换算结果，通知模型位置窗口刷新坐标。
+                emit sigPointerPos(dX, dY);
                 s = tr(" Current Pos:%1-%2").arg(sValueX).arg(sValueY);
                 if (!sValueY2.isEmpty())
                     s += QString("-%1").arg(sValueY2);