Rotate

Rotate a protein around its molecular centroid.

View source Guide and examplesInherits Animation

from proteinmotion import Rotate

Constructor

Rotate(protein, angle, axis=(0, 1, 0), **kwargs)

Parameters

Parameter	Default	Description
`protein`	Required	Protein object to read or animate.
`angle`	Required	Rotation angle in radians.
`axis`	`(0, 1, 0)`	Nonzero 3D rotation axis; it is normalized internally.
`**kwargs`	—	Additional keyword options described below or in the linked constructor.

Additional keyword arguments

Parameter	Default	Description
`rate_func`keyword only	`smooth`	Callable that maps progress in [0, 1] to a finite value in [0, 1].

Example and output

This excerpt runs inside a scene’s construct() method. The full example file includes imports, structure loading, and camera setup. Run it from a repository checkout.

Code Scene excerpt

p = ubiquitin()
frame(self, p)
self.play(FadeIn(p), run_time=1)
self.play(Rotate(p, np.pi), run_time=3)
self.play(Representation(p, "ribbon"), run_time=1)
self.play(
    p.animate.shift((5, 0, 0)),
    self.camera.animate.orbit(theta=0.6),
    run_time=2,
)
self.wait(0.5)

Output Preview · 7.5 s · 60 fps

Rotation and movement

Ubiquitin, PDB 1UBQ.

Full source: Motion Download MP4

Methods and properties

Name	Description
bind()method	Capture starting values when the scene schedules the animation.
apply()method	Evaluate the animation at eased progress alpha. Called by the timeline.
targetsproperty · inherited from Animation	Objects whose state this animation changes.