WPF实现画线动画效果实例
程序员文章站
2022-05-13 17:34:15
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...
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：
///
/// Window2.xaml 的交互逻辑
///
public partial class Window2 : Window
{
public Window2()
{
InitializeComponent();
var canvas = new Canvas();
Content = canvas;
var points =
new List()
{
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);
}
}