Star

Qualified name: manim.mobject.geometry.polygram.Star

class Star(n=5, *, outer_radius=1, inner_radius=None, density=2, start_angle=1.5707963267948966, **kwargs)

Bases: Polygon

A regular polygram without the intersecting lines.

Parameters:

• n (int) – How many points on the Star.

• outer_radius (float) – The radius of the circle that the outer vertices are placed on.

• inner_radius (float | None) –

  The radius of the circle that the inner vertices are placed on.

  If unspecified, the inner radius will be calculated such that the edges of the Star perfectly follow the edges of its RegularPolygram counterpart.

• density (int) –

  The density of the Star. Only used if inner_radius is unspecified.

  See RegularPolygram for more information.

• start_angle (float | None) – The angle the vertices start at; the rotation of the Star.

• kwargs – Forwardeds to the parent constructor.

Raises:

ValueError – If inner_radius is unspecified and density is not in the range [1, n/2).

Examples

Example: StarExample

from manim import *

class StarExample(Scene):
    def construct(self):
        pentagram = RegularPolygram(5, radius=2)
        star = Star(outer_radius=2, color=RED)

        self.add(pentagram)
        self.play(Create(star), run_time=3)
        self.play(FadeOut(star), run_time=2)

class StarExample(Scene):
    def construct(self):
        pentagram = RegularPolygram(5, radius=2)
        star = Star(outer_radius=2, color=RED)

        self.add(pentagram)
        self.play(Create(star), run_time=3)
        self.play(FadeOut(star), run_time=2)

Example: DifferentDensitiesExample

from manim import *

class DifferentDensitiesExample(Scene):
    def construct(self):
        density_2 = Star(7, outer_radius=2, density=2, color=RED)
        density_3 = Star(7, outer_radius=2, density=3, color=PURPLE)

        self.add(VGroup(density_2, density_3).arrange(RIGHT))

class DifferentDensitiesExample(Scene):
    def construct(self):
        density_2 = Star(7, outer_radius=2, density=2, color=RED)
        density_3 = Star(7, outer_radius=2, density=3, color=PURPLE)

        self.add(VGroup(density_2, density_3).arrange(RIGHT))

Methods

Attributes

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__(n=5, *, outer_radius=1, inner_radius=None, density=2, start_angle=1.5707963267948966, **kwargs)

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

Parameters:

• n (int) –

• outer_radius (float) –

• inner_radius (float | None) –

• density (int) –

• start_angle (float | None) –

Return type:

None