Timer triggered Animation : Animation « Windows Presentation Foundation « C# / C Sharp

1. C# / C Sharp
2. Windows Presentation Foundation
3. Animation

Timer triggered Animation

  

<Window x:Class="WpfApplication1.PerFrameAnimation"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  Title="Per Frame Animation" Height="400" Width="400">
    <Canvas>
        <Path Fill="Blue">
            <Path.Data>
                <EllipseGeometry x:Name="ball1" Center="30,180" RadiusX="5" RadiusY="5" />
            </Path.Data>
        </Path>

        <Path Stroke="LightBlue">
            <Path.Data>
                <EllipseGeometry Center="180,180" RadiusX="150" RadiusY="75" />
            </Path.Data>
        </Path>

    </Canvas>
</Window>
//File:Window.xaml.cs

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace WpfApplication1
{
    public partial class PerFrameAnimation : Window
    {
        private TimeSpan lastRender;
        double time = 0;
        double dt = 0;
        public PerFrameAnimation()
        {
            lastRender = TimeSpan.FromTicks(DateTime.Now.Ticks);
            CompositionTarget.Rendering += StartAnimation;
        }
        private void StartAnimation(object sender, EventArgs e)
        {
            RenderingEventArgs renderArgs = (RenderingEventArgs)e;
            dt = (renderArgs.RenderingTime - lastRender).TotalSeconds;
            lastRender = renderArgs.RenderingTime;
            double x = 180 + 150 * Math.Cos(2 * time);
            double y = 180 + 75 * Math.Sin(2 * time);
            ball1.Center = new Point(x, y);

            time += dt; 
        }
    }
}

   
    
  

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