WPF动画故事板不工作动画、故事、工作、WPF

2023-09-08 10:29:50 作者:outsiders 局外人

我有我的,其中包含的Visual3D元素和故事板(SB)持有与该模型的动画自定义的3D模型类(模型)。我试图使用故事板旋转的Visual3D元素,但遗憾的是它不工作。

下面是code段

 公共无效AnimationRotate(型号机型,双期限,双重的startTime,的repeatBehavior行为)
    {

        //旋转变换3D
        RotateTransform3D rotateTransform =新RotateTransform3D();

        //指定变换到模型
        model.Visual3D.Transform = Transform3DHelper.CombineTransform(model.Visual3D.Transform,rotateTransform);

        //定义旋转轴
        AxisAngleRotation3D rotateAxis =新AxisAngleRotation3D(新的Vector3D(0,0,1),180);

        //创建3D旋转动画
        Rotation3DAnimation rotateAnimation =新Rotation3DAnimation(rotateAxis,TimeSpan.FromSeconds(0.5));

        //旋转行为
        rotateAnimation.RepeatBehavior =行为;

        //从时间开始动画
        rotateAnimation.BeginTime = TimeSpan.FromSeconds(startTime时);

        //开头动画 - 这工作正常
       // rotateTransform.BeginAnimation(RotateTransform3D.RotationProperty,rotateAnimation);

        Storyboard.SetTargetProperty(rotateAnimation,新的PropertyPath(RotateTransform3D.RotationProperty));
        Storyboard.SetTarget(rotateAnimation,rotateTransform);

        //添加动画模型的故事板
        model.sb.Children.Add(rotateAnimation);

        //但这种方法是不是WOKRING
        model.sb.Begin();

    }
 

解决方案

这个问题在描述这个答案。

而不是使用如何在设计中构建共情 同理心

Storyboard.SetTarget 您需要的转换和调用 Storyboard.SetTargetName 注册一个名称。此外,你必须调用 Storyboard.Begin(FrameworkElement的)并传递一个FrameworkElement的有适当的名称范围为参数(点击这里)。

  RegisterName(RotateTransform,rotateTransform);
Storyboard.SetTargetName(rotateAnimationRotateTransform);
...
model.sb.Begin(本);
 

此外,我想你需要清除故事板的儿童的地方,或创建一个新的故事板,只要动画开始。

I have my custom 3D model class (Model) which contains Visual3D element and a Storyboard (sb) to hold animations related to that model. I'm trying to rotate the Visual3D element using the Storyboard but unfortunately it's not working.

Here is the code snippet

public void AnimationRotate(Model model, double duration, double startTime, RepeatBehavior behaviour)
    {

        //Rotate transform 3D
        RotateTransform3D rotateTransform = new RotateTransform3D();

        //assign transform to the model
        model.Visual3D.Transform = Transform3DHelper.CombineTransform(model.Visual3D.Transform, rotateTransform);

        //define the rotation axis
        AxisAngleRotation3D rotateAxis = new AxisAngleRotation3D(new Vector3D(0, 0, 1), 180);

        //create 3D rotation animation
        Rotation3DAnimation rotateAnimation = new Rotation3DAnimation(rotateAxis, TimeSpan.FromSeconds(0.5));

        //rotation behaviour
        rotateAnimation.RepeatBehavior = behaviour;

        //start animation from time
        rotateAnimation.BeginTime = TimeSpan.FromSeconds(startTime);

        //begin animation - THIS WORKS FINE
       // rotateTransform.BeginAnimation(RotateTransform3D.RotationProperty, rotateAnimation);

        Storyboard.SetTargetProperty(rotateAnimation, new PropertyPath(RotateTransform3D.RotationProperty));
        Storyboard.SetTarget(rotateAnimation, rotateTransform);

        //add animation to the storyboard of the model
        model.sb.Children.Add(rotateAnimation);

        //BUT THIS APPROACH IS NOT WOKRING
        model.sb.Begin();

    }

解决方案

The problem is described in this answer.

Instead of using Storyboard.SetTarget you need to register a name for the transform and call Storyboard.SetTargetName. Furthermore you must call Storyboard.Begin(FrameworkElement) and pass a FrameworkElement with the appropriate name scope as parameter (this here).

RegisterName("RotateTransform", rotateTransform);
Storyboard.SetTargetName(rotateAnimation, "RotateTransform");
...
model.sb.Begin(this);

Also I guess you need to clear the Storyboard's Children somewhere, or create a new Storyboard whenever the animation is started.