飞行器方位角模拟示范

飞行器在空中的姿态，不同于它在地理坐标系中的坐标值。本代码形象的演示了什么是姿态角，其中的代码和图片资源也有一定的复用价值。对于想要根据3D模型上各个顶点坐标来计算姿态角的朋友，也有一定参考价值。

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Media;

namespace HUD
{
    public class BorderTextLabel : System.Windows.Controls.Label
    {
        private static void Redraw（Dependencyobject d DependencyPropertyChangedEventArgs e）
        {
            （（BorderTextLabel）d）.InvalidateVisual（）;
        }
        public string Text
        {
            get { return （string）GetValue（TextProperty）; }
            set { SetValue（TextProperty value）; }
        }
        public static readonly DependencyProperty TextProperty = DependencyProperty.Register（“Text“ typeof（string） typeof（BorderTextLabel） new frameworkPropertymetadata（string.EmptyRedraw））;

        public Brush Stroke
        {
            get { return （Brush）GetValue（StrokeProperty）; }
            set { SetValue（StrokeProperty value）; }
        }
        public static readonly DependencyProperty StrokeProperty = DependencyProperty.Register（“Stroke“ typeof（Brush） typeof（BorderTextLabel） new frameworkPropertymetadata（Brushes.Black Redraw））;

        public double StrokeThickness
        {
            get { return （double）GetValue（StrokeThicknessProperty）; }
            set { SetValue（StrokeThicknessProperty value）; }
        }
        public static readonly DependencyProperty StrokeThicknessProperty = DependencyProperty.Register（“StrokeThickness“ typeof（double） typeof（BorderTextLabel） new frameworkPropertymetadata（（double）1 Redraw））;

        protected override void OnRender（DrawingContext drawingContext）
        {
            base.OnRender（drawingContext）;
            FormattedText formattedText = new FormattedText（this.Text CultureInfo.CurrentCulture FlowDirection new Typeface（FontFamily Fontstyle FontWeight FontStretch） FontSize this.Foreground）;
            if （double.IsNaN（this.Width））
                this.Width = formattedText.Width;
            if （double.IsNaN（this.Height））
                this.Height = formattedText.Height;
            Point startp = new Point（0 0）;
            if （this.HorizontalContentAlignment == HorizontalAlignment.Right） startp.X = this.Width - formattedText.Width;
            if （this.HorizontalContentAlignment == HorizontalAlignment.Center） startp.X = （this.Width - formattedText.Width） / 2;
            if （this.VerticalContentAlignment == VerticalAlignment.Bottom） startp.X = this.Height - formattedText.Height;
            if （this.VerticalContentAlignment == VerticalAlignment.Center） startp.X = （this.Height - formattedText.Height） / 2;
            var textgeometry = formattedText.BuildGeometry（startp）;
            drawingContext.DrawGeometry（this.Foreground new Pen（Stroke StrokeThickness） textgeometry）;
        }

    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2017-08-01 07:31  HUD-master\
     目录           0  2017-08-01 07:31  HUD-master\HUD\
     文件        2885  2017-08-01 07:31  HUD-master\HUD\BorderTextLabel.cs
     文件        4050  2017-08-01 07:31  HUD-master\HUD\HUD.csproj
     文件        1458  2017-08-01 07:31  HUD-master\HUD\HUD.sln
     文件        4458  2017-08-01 07:31  HUD-master\HUD\HUDControl.xaml
     文件       31006  2017-08-01 07:31  HUD-master\HUD\HUDControl.xaml.cs
     目录           0  2017-08-01 07:31  HUD-master\HUD\Properties\
     文件        2226  2017-08-01 07:31  HUD-master\HUD\Properties\AssemblyInfo.cs
     文件        2778  2017-08-01 07:31  HUD-master\HUD\Properties\Resources.Designer.cs
     文件        5612  2017-08-01 07:31  HUD-master\HUD\Properties\Resources.resx
     文件        1114  2017-08-01 07:31  HUD-master\HUD\Properties\Settings.Designer.cs
     文件         201  2017-08-01 07:31  HUD-master\HUD\Properties\Settings.settings
     目录           0  2017-08-01 07:31  HUD-master\HUDSample\
     文件         187  2017-08-01 07:31  HUD-master\HUDSample\App.config
     文件         372  2017-08-01 07:31  HUD-master\HUDSample\App.xaml
     文件         336  2017-08-01 07:31  HUD-master\HUDSample\App.xaml.cs
     文件        4658  2017-08-01 07:31  HUD-master\HUDSample\HUDSample.csproj
     文件        2286  2017-08-01 07:31  HUD-master\HUDSample\MainWindow.xaml
     文件         575  2017-08-01 07:31  HUD-master\HUDSample\MainWindow.xaml.cs
     目录           0  2017-08-01 07:31  HUD-master\HUDSample\Properties\
     文件        2271  2017-08-01 07:31  HUD-master\HUDSample\Properties\AssemblyInfo.cs
     文件        2831  2017-08-01 07:31  HUD-master\HUDSample\Properties\Resources.Designer.cs
     文件        5612  2017-08-01 07:31  HUD-master\HUDSample\Properties\Resources.resx
     文件        1096  2017-08-01 07:31  HUD-master\HUDSample\Properties\Settings.Designer.cs
     文件         201  2017-08-01 07:31  HUD-master\HUDSample\Properties\Settings.settings
     文件        1082  2017-08-01 07:31  HUD-master\LICENSE
     文件         169  2017-08-01 07:31  HUD-master\README.md
     文件      270962  2017-08-01 07:31  HUD-master\hud.png