ComplexValueTracker

Qualified name: manim.mobject.value\_tracker.ComplexValueTracker

class ComplexValueTracker(value=0, **kwargs)

Bases: ValueTracker

Tracks a complex-valued parameter.

When the value is set through animate, the value will take a straight path from the source point to the destination point.

Examples

Example: ComplexValueTrackerExample

from manim import *

class ComplexValueTrackerExample(Scene):
    def construct(self):
        tracker = ComplexValueTracker(-2+1j)
        dot = Dot().add_updater(
            lambda x: x.move_to(tracker.points)
        )

        self.add(NumberPlane(), dot)

        self.play(tracker.animate.set_value(3+2j))
        self.play(tracker.animate.set_value(tracker.get_value() * 1j))
        self.play(tracker.animate.set_value(tracker.get_value() - 2j))
        self.play(tracker.animate.set_value(tracker.get_value() / (-2 + 3j)))

class ComplexValueTrackerExample(Scene):
    def construct(self):
        tracker = ComplexValueTracker(-2+1j)
        dot = Dot().add_updater(
            lambda x: x.move_to(tracker.points)
        )

        self.add(NumberPlane(), dot)

        self.play(tracker.animate.set_value(3+2j))
        self.play(tracker.animate.set_value(tracker.get_value() * 1j))
        self.play(tracker.animate.set_value(tracker.get_value() - 2j))
        self.play(tracker.animate.set_value(tracker.get_value() / (-2 + 3j)))

Methods

get_value	Get the current value of this value tracker as a complex number.
set_value	Sets a new complex value to the ComplexValueTracker

Attributes

animate	Used to animate the application of any method of self.
animation_overrides
depth	The depth of the mobject.
height	The height of the mobject.
width	The width of the mobject.

_original__init__(value=0, **kwargs)

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

get_value()

Get the current value of this value tracker as a complex number.

The value is internally stored as a points array [a, b, 0]. This can be accessed directly to represent the value geometrically, see the usage example.

set_value(z)

Sets a new complex value to the ComplexValueTracker