ArcBrace¶

Qualified name: manim.mobject.svg.brace.ArcBrace

class ArcBrace(arc=None, direction=array([1., 0., 0.]), **kwargs)[source]¶

Bases: Brace

Creates a Brace that wraps around an Arc.

The direction parameter allows the brace to be applied from outside or inside the arc.

Warning

The ArcBrace is smaller for arcs with smaller radii.

Note

The ArcBrace is initially a vertical Brace defined by the length of the Arc, but is scaled down to match the start and end angles. An exponential function is then applied after it is shifted based on the radius of the arc.

The scaling effect is not applied for arcs with radii smaller than 1 to prevent over-scaling.

Parameters:

arc (Arc | None) – The Arc that wraps around the Brace mobject.
direction (Vector3DLike) – The direction from which the brace faces the arc. LEFT for inside the arc, and RIGHT for the outside.
kwargs (Any)

Example

Example: ArcBraceExample ¶

from manim import *

class ArcBraceExample(Scene):
    def construct(self):
        arc_1 = Arc(radius=1.5,start_angle=0,angle=2*PI/3).set_color(RED)
        brace_1 = ArcBrace(arc_1,LEFT)
        group_1 = VGroup(arc_1,brace_1)

        arc_2 = Arc(radius=3,start_angle=0,angle=5*PI/6).set_color(YELLOW)
        brace_2 = ArcBrace(arc_2)
        group_2 = VGroup(arc_2,brace_2)

        arc_3 = Arc(radius=0.5,start_angle=-0,angle=PI).set_color(BLUE)
        brace_3 = ArcBrace(arc_3)
        group_3 = VGroup(arc_3,brace_3)

        arc_4 = Arc(radius=0.2,start_angle=0,angle=3*PI/2).set_color(GREEN)
        brace_4 = ArcBrace(arc_4)
        group_4 = VGroup(arc_4,brace_4)

        arc_group = VGroup(group_1, group_2, group_3, group_4).arrange_in_grid(buff=1.5)
        self.add(arc_group.center())

class ArcBraceExample(Scene):
    def construct(self):
        arc_1 = Arc(radius=1.5,start_angle=0,angle=2*PI/3).set_color(RED)
        brace_1 = ArcBrace(arc_1,LEFT)
        group_1 = VGroup(arc_1,brace_1)

        arc_2 = Arc(radius=3,start_angle=0,angle=5*PI/6).set_color(YELLOW)
        brace_2 = ArcBrace(arc_2)
        group_2 = VGroup(arc_2,brace_2)

        arc_3 = Arc(radius=0.5,start_angle=-0,angle=PI).set_color(BLUE)
        brace_3 = ArcBrace(arc_3)
        group_3 = VGroup(arc_3,brace_3)

        arc_4 = Arc(radius=0.2,start_angle=0,angle=3*PI/2).set_color(GREEN)
        brace_4 = ArcBrace(arc_4)
        group_4 = VGroup(arc_4,brace_4)

        arc_group = VGroup(group_1, group_2, group_3, group_4).arrange_in_grid(buff=1.5)
        self.add(arc_group.center())

References: Arc

Methods

Attributes

`always`	Call a method on a mobject every frame.
`animate`	Used to animate the application of any method of `self`.
`animation_overrides`
`color`
`depth`	The depth of the mobject.
`fill_color`	If there are multiple colors (for gradient) this returns the first one
`height`	The height of the mobject.
`n_points_per_curve`
`sheen_factor`
`stroke_color`
`width`	The width of the mobject.

_original__init__(arc=None, direction=array([1., 0., 0.]), **kwargs)¶

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

Parameters:

arc (Arc | None)
direction (Vector3DLike)
kwargs (Any)