ChangingDecimal¶

Qualified name: manim.animation.numbers.ChangingDecimal

class ChangingDecimal(mobject=None, *args, use_override=True, **kwargs)[source]¶

Bases: Animation

Animate a DecimalNumber to values specified by a user-supplied function.

Parameters:

decimal_mob (DecimalNumber) – The DecimalNumber instance to animate.
number_update_func (Callable[[float], float]) – A function that returns the number to display at each point in the animation.
suspend_mobject_updating (bool) – If True, the mobject is not updated outside this animation.
kwargs (Any)

Raises:

TypeError – If decimal_mob is not an instance of DecimalNumber.

Examples

Example: ChangingDecimalExample ¶

from manim import *

class ChangingDecimalExample(Scene):
    def construct(self):
        number = DecimalNumber(0)
        self.add(number)
        self.play(
            ChangingDecimal(
                number,
                lambda a: 5 * a,
                run_time=3
            )
        )
        self.wait()

class ChangingDecimalExample(Scene):
    def construct(self):
        number = DecimalNumber(0)
        self.add(number)
        self.play(
            ChangingDecimal(
                number,
                lambda a: 5 * a,
                run_time=3
            )
        )
        self.wait()

Methods

`check_validity_of_input`
`interpolate_mobject`	Interpolates the mobject of the `Animation` based on alpha value.

Attributes

run_time

_original__init__(decimal_mob, number_update_func, suspend_mobject_updating=False, **kwargs)¶

Initialize self. See help(type(self)) for accurate signature.

Parameters:

decimal_mob (DecimalNumber)
number_update_func (Callable[[float], float])
suspend_mobject_updating (bool)
kwargs (Any)

Return type:

None

interpolate_mobject(alpha)[source]¶

Interpolates the mobject of the Animation based on alpha value.

Parameters:: alpha (float) – A float between 0 and 1 expressing the ratio to which the animation is completed. For example, alpha-values of 0, 0.5, and 1 correspond to the animation being completed 0%, 50%, and 100%, respectively.
Return type:: None