WPF实现画线动画效果

本文实例为大家分享了WPF实现画线动画的具体代码，供大家参考，具体内容如下

需求：一条直线（不是曲线），模范笔画一样在画布上逐渐画出来。但前提是，用后台代码实现，并非WPF标签

效果：

上代码：

/// <summary>
  /// Window2.xaml 的交互逻辑
  /// </summary>
  public partial class Window2 : Window
  {
    public Window2()
    {
      InitializeComponent();
      var canvas = new Canvas();
      Content = canvas;
      var points =
        new List<Point>()
        {
          new Point(10, 10),
          new Point(90, 90),
          new Point(60, 10),
          new Point(250, 90),
          new Point(10, 10)
        };
      var sb = new Storyboard();
      for (int i = 0; i < points.Count - 1; i++)
      {
        var lineGeometry = new LineGeometry(points[i], points[i]);
        var path =
          new Path()
          {
            Stroke = Brushes.Black,
            StrokeThickness = 2,
            Data = lineGeometry
          };
        canvas.Children.Add(path);
        var animation =
          new PointAnimation(points[i], points[i + 1], new Duration(TimeSpan.FromMilliseconds(1000)))
          {
            BeginTime = TimeSpan.FromMilliseconds(i * 1010)
          };
        sb.Children.Add(animation);
        RegisterName("geometry" + i, lineGeometry);
        Storyboard.SetTargetName(animation, "geometry" + i);
        Storyboard.SetTargetProperty(animation, new PropertyPath(LineGeometry.EndPointProperty));
      }
      MouseDown += (s, e) => sb.Begin(this);
    }
  }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。