rotation

Important

If you want to achieve a rotation effect, please avoid attempting to directly use self.play(item.anim.points.rotate(...)). This method only performs a MethodTransform between the current and resulting states, without creating a rotation effect.

To achieve a rotation effect, please use the provided Rotate and Rotating classes as shown below:

class janim.anims.rotation.Rotate(item: Item, angle: float, *, axis: Vect = array([0., 0., 1.]), about_point: Vect | None = None, about_edge: Vect = array([0., 0., 0.]), root_only: bool = False, absolute: bool = True, **kwargs)

Bases: DataUpdater

Rotation animation, default smooth interpolation for angles.

• 参数和旋转基本一致

• absolute 参数是为了兼容摄像机物件，对于非摄像机物件该参数无效

RotateExample

from janim.imports import *

class RotateExample(Timeline):
    def construct(self):
        square = Square(side_length=4).show()

        self.play(
            Rotate(
                square,
                PI / 4,
                duration=2
            )
        )
        self.forward(0.3)
        self.play(
            Rotate(
                square,
                PI,
                axis=RIGHT,
                duration=2,
            )
        )
        self.forward(0.3)

class janim.anims.rotation.Rotating(item: ~janim.items.points.Points, angle: float, *, rate_func=<function linear>, **kwargs)

Bases: Rotate

Rotation animation, default linear interpolation for angles.

RotatingExample

from janim.imports import *

class RotatingExample(Timeline):
    def construct(self):
        square = Square(side_length=4).show()

        self.play(
            Rotating(
                square,
                PI / 4,
                duration=2
            )
        )
        self.forward(0.3)
        self.play(
            Rotating(
                square,
                PI,
                axis=RIGHT,
                duration=2,
            )
        )
        self.forward(0.3)