xhouse/XplorePlane
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

点点距测量工具：端点由点改为线段

Browse Source
This commit is contained in:
李伟
2026-05-06 13:27:41 +08:00
parent 7846445b33
commit 8dbc274e63
2 changed files with 126 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
XP.ImageProcessing.RoiControl/Controls/PolygonRoiCanvas.xaml.cs
+77 -1
View File
@@ -578,11 +578,87 @@ namespace XP.ImageProcessing.RoiControl.Controls
var g = new Models.MeasureGroup { P1 = p1, P2 = p2 };
g.Line = new Line { Stroke = Brushes.Lime, StrokeThickness = 1, IsHitTestVisible = false };
g.Label = new TextBlock { Foreground = Brushes.Yellow, FontSize = 13, FontWeight = FontWeights.Bold, IsHitTestVisible = false };
// 使用垂直线段代替圆点
g.PerpLine1 = new Line { Stroke = Brushes.Yellow, StrokeThickness = 1, IsHitTestVisible = true, Cursor = Cursors.Hand };
g.PerpLine2 = new Line { Stroke = Brushes.Yellow, StrokeThickness = 1, IsHitTestVisible = true, Cursor = Cursors.Hand };
// 保留圆点以兼容拖拽逻辑（但设为不可见）
g.Dot1 = CreateMDot(Brushes.Red);
g.Dot2 = CreateMDot(Brushes.Blue);
foreach (UIElement el in new UIElement[] { g.Line, g.Label, g.Dot1, g.Dot2 })
g.Dot1.Visibility = Visibility.Collapsed;
g.Dot2.Visibility = Visibility.Collapsed;
foreach (UIElement el in new UIElement[] { g.Line, g.Label, g.PerpLine1, g.PerpLine2, g.Dot1, g.Dot2 })
_measureOverlay.Children.Add(el);
// 设置圆点位置（用于拖拽计算）
SetDotPos(g.Dot1, p1); SetDotPos(g.Dot2, p2);
// 垂直线段1的拖拽处理 - 直接设置拖拽状态
g.PerpLine1.MouseLeftButtonDown += (s, e) =>
{
_mDraggingOwner = g;
_mDraggingRole = "Dot1";
_mDraggingDot = g.Dot1;
g.PerpLine1.CaptureMouse();
e.Handled = true;
};
g.PerpLine1.MouseMove += (s, e) =>
{
if (_mDraggingOwner != g || _mDraggingRole != "Dot1" || _measureOverlay == null) return;
if (e.LeftButton != MouseButtonState.Pressed) return;
var pos = e.GetPosition(_measureOverlay);
SetDotPos(g.Dot1, pos);
g.P1 = pos;
g.UpdateLine();
g.UpdateLabel(FormatDistance(g.Distance));
RaiseMeasureCompleted(g.P1, g.P2, g.Distance, MeasureCount, "PointDistance");
};
g.PerpLine1.MouseLeftButtonUp += (s, e) =>
{
if (_mDraggingOwner == g && _mDraggingRole == "Dot1")
{
_mDraggingOwner = null;
_mDraggingRole = null;
_mDraggingDot = null;
g.PerpLine1.ReleaseMouseCapture();
}
e.Handled = true;
};
// 垂直线段2的拖拽处理
g.PerpLine2.MouseLeftButtonDown += (s, e) =>
{
_mDraggingOwner = g;
_mDraggingRole = "Dot2";
_mDraggingDot = g.Dot2;
g.PerpLine2.CaptureMouse();
e.Handled = true;
};
g.PerpLine2.MouseMove += (s, e) =>
{
if (_mDraggingOwner != g || _mDraggingRole != "Dot2" || _measureOverlay == null) return;
if (e.LeftButton != MouseButtonState.Pressed) return;
var pos = e.GetPosition(_measureOverlay);
SetDotPos(g.Dot2, pos);
g.P2 = pos;
g.UpdateLine();
g.UpdateLabel(FormatDistance(g.Distance));
RaiseMeasureCompleted(g.P1, g.P2, g.Distance, MeasureCount, "PointDistance");
};
g.PerpLine2.MouseLeftButtonUp += (s, e) =>
{
if (_mDraggingOwner == g && _mDraggingRole == "Dot2")
{
_mDraggingOwner = null;
_mDraggingRole = null;
_mDraggingDot = null;
g.PerpLine2.ReleaseMouseCapture();
}
e.Handled = true;
};
g.UpdateLine(); g.UpdateLabel(FormatDistance(g.Distance));
return g;
}
XP.ImageProcessing.RoiControl/Models/MeasureGroup.cs
+49
View File
@@ -9,12 +9,21 @@ namespace XP.ImageProcessing.RoiControl.Models
/// <summary>一次点点距测量的所有视觉元素</summary>
public class MeasureGroup
{
// 保留原有圆点属性以兼容其他代码
public Ellipse Dot1 { get; set; }
public Ellipse Dot2 { get; set; }
// 新增：垂直线段（替代圆点的视觉表现）
public Line PerpLine1 { get; set; }
public Line PerpLine2 { get; set; }
public Line Line { get; set; }
public TextBlock Label { get; set; }
public Point P1 { get; set; }
public Point P2 { get; set; }
/// <summary>垂直线段长度（像素）</summary>
public double PerpLineLength { get; set; } = 10.0;
public double Distance
{
@@ -30,6 +39,46 @@ namespace XP.ImageProcessing.RoiControl.Models
Line.X1 = P1.X; Line.Y1 = P1.Y;
Line.X2 = P2.X; Line.Y2 = P2.Y;
Line.Visibility = Visibility.Visible;
// 更新垂直线段位置
UpdatePerpLines();
}
/// <summary>更新两条垂直线段的位置</summary>
public void UpdatePerpLines()
{
if (PerpLine1 == null || PerpLine2 == null) return;
// 计算两点连线的方向向量
double dx = P2.X - P1.X;
double dy = P2.Y - P1.Y;
double len = Math.Sqrt(dx * dx + dy * dy);
if (len < 0.001) return; // 避免除零
// 归一化方向向量
double ux = dx / len;
double uy = dy / len;
// 垂直方向向量 (-uy, ux)
double vx = -uy;
double vy = ux;
// P1处的垂直线段
double halfLen1 = PerpLineLength / 2;
PerpLine1.X1 = P1.X + vx * halfLen1;
PerpLine1.Y1 = P1.Y + vy * halfLen1;
PerpLine1.X2 = P1.X - vx * halfLen1;
PerpLine1.Y2 = P1.Y - vy * halfLen1;
PerpLine1.Visibility = Visibility.Visible;
// P2处的垂直线段
double halfLen2 = PerpLineLength / 2;
PerpLine2.X1 = P2.X + vx * halfLen2;
PerpLine2.Y1 = P2.Y + vy * halfLen2;
PerpLine2.X2 = P2.X - vx * halfLen2;
PerpLine2.Y2 = P2.Y - vy * halfLen2;
PerpLine2.Visibility = Visibility.Visible;
}
public void UpdateLabel(string distanceText = null)