BarChart bars of height 0 do not get updated as expected.

[malthesr]

Description of bug / unexpected behavior

BarChart bars of height do not get updated as expected.

Expected behavior

I expected to be able to updated BarChart bars using the provided change_bar_values method, but this appears not to work for bars of height zero.

How to reproduce the issue

In the following, the bars are not updated in the Foo scene (initial height 0.0), whereas they are updated in the Bar scene (initial height 0.0001).

Code for reproducing the problem

class Foo(Scene):
    def construct(self):
        values=[0 for _ in range(11)]

        chart = BarChart(
            values,
            y_range=[0, 10, 1],
            y_axis_config={"font_size": 24},
        )
        new_values=[1 for _ in range(11)]
        chart.change_bar_values(new_values)
        self.add(chart)


class Bar(Scene):
    def construct(self):
        values=[0.0001 for _ in range(11)]

        chart = BarChart(
            values,
            y_range=[0, 10, 1],
            y_axis_config={"font_size": 24},
        )
        new_values=[1 for _ in range(11)]
        chart.change_bar_values(new_values)
        self.add(chart)

Additional media files

Images/GIFs

Foo:

Bar:

System specifications

System Details

Manjaro Linux 21.2.5
Python 3.10.2
manim 0.15.1