<Windowx:Class="WpfApp11.MainWindow"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"Title="地球、月球、太阳运动模拟"Width="1366"Height="768"WindowStartupLocation="CenterScreen"> <Grid><Grid.Background><ImageBrush ImageSource="earth.jpg" /></Grid.Background><EllipseName="ellipse3"Width="150"Height="150"Margin="619,321,0,0"HorizontalAlignment="Left"VerticalAlignment="Top"ToolTip="太阳"><Ellipse.Fill><LinearGradientBrush StartPoint="0,0.5" EndPoint="1,0.5"><GradientStop Offset="0.246" Color="#FFFFCA00" /><GradientStop Offset="0.967" Color="#FFFF0034" /></LinearGradientBrush></Ellipse.Fill></Ellipse><!--  通过使用EllipseGeometry实现椭圆路径的绘制  --><PathMargin="308,136,120,81"RenderTransformOrigin="0.415,0.498"Stroke="#FFFF7900"StrokeThickness="5"><Path.Data><EllipseGeometryx:Name="e1"Center="400 250"RadiusX="400"RadiusY="250" /></Path.Data></Path><GridName="grid1"Width="484"Height="352"Margin="30,-12,0,0"HorizontalAlignment="Left"VerticalAlignment="Top"><Grid.RenderTransform><MatrixTransform x:Name="grid" /></Grid.RenderTransform><!--  Grid触发器  --><Grid.Triggers><EventTrigger RoutedEvent="Page.Loaded"><BeginStoryboard><Storyboard x:Name="sb1" RepeatBehavior="Forever"><MatrixAnimationUsingPathx:Name="ma1"Storyboard.TargetName="grid"Storyboard.TargetProperty="Matrix"Duration="0:1:0" /></Storyboard></BeginStoryboard></EventTrigger></Grid.Triggers><EllipseName="ellipse1"Width="100"Height="100"Margin="227,94,0,0"HorizontalAlignment="Left"VerticalAlignment="Top"ToolTip="地球"><Ellipse.Fill><LinearGradientBrush StartPoint="0,0.5" EndPoint="1,0.5"><GradientStop Offset="0" Color="#FFE0DFDD" /><GradientStop Offset="0.975" Color="#FF0035FF" /></LinearGradientBrush></Ellipse.Fill><Ellipse.RenderTransform><TransformGroup><MatrixTransform x:Name="earth" /></TransformGroup></Ellipse.RenderTransform><Ellipse.Triggers><EventTrigger RoutedEvent="Page.Loaded" /></Ellipse.Triggers></Ellipse><EllipseName="ellipse2"Width="50"Height="50"Margin="228,40,0,0"HorizontalAlignment="Left"VerticalAlignment="Top"ToolTip="月球"><Ellipse.Fill><LinearGradientBrush StartPoint="0,0.5" EndPoint="1,0.5"><GradientStop Offset="0" Color="White" /><GradientStop Offset="0.943" Color="#FFDDD2BE" /></LinearGradientBrush></Ellipse.Fill><Ellipse.RenderTransform><TransformGroup><MatrixTransform x:Name="moon" /></TransformGroup></Ellipse.RenderTransform><Ellipse.Triggers><EventTrigger RoutedEvent="Page.Loaded"><BeginStoryboard><Storyboard x:Name="sb2" RepeatBehavior="Forever"><MatrixAnimationUsingPathx:Name="ma2"Storyboard.TargetName="moon"Storyboard.TargetProperty="Matrix"Duration="0:0:30" /></Storyboard></BeginStoryboard></EventTrigger></Ellipse.Triggers></Ellipse><PathWidth="122"Height="200"Margin="262.522,59,0,93"HorizontalAlignment="Left"Stroke="#FF00FF40"StrokeThickness="5"><Path.Data><EllipseGeometryx:Name="ellipseGeometry1"Center="50 100"RadiusX="50"RadiusY="100"><EllipseGeometry.Transform><SkewTransform AngleY="-20" /></EllipseGeometry.Transform></EllipseGeometry></Path.Data></Path></Grid><TextBoxWidth="448"Height="110"Margin="891,7,0,0"HorizontalAlignment="Left"VerticalAlignment="Top"Background="{x:Null}"BorderBrush="#FF0012FF"BorderThickness="0"Foreground="White"Text="地球饶太阳公转，月球饶地球公转。太阳、地球、月球都在自转太阳是太阳系的主宰，是恒星。地球是太阳系的一颗行星，月球是地球的一颗天然卫星。地球绕着太阳公转，月球绕着地球公转。太阳不可能位于地球和月球之间。"TextWrapping="Wrap" /></Grid>
</Window> 

    public MainWindow(){InitializeComponent();ma2.PathGeometry = ellipseGeometry1.GetFlattenedPathGeometry(); ma1.PathGeometry = e1.GetFlattenedPathGeometry(); }