BackgroundRectangle#

Qualified name: manim.mobject.geometry.shape\_matchers.BackgroundRectangle

class BackgroundRectangle(mobject, color=None, stroke_width=0, stroke_opacity=0, fill_opacity=0.75, buff=0, **kwargs)[source]#

Bases: manim.mobject.geometry.shape_matchers.SurroundingRectangle

A background rectangle. Its default color is the background color of the scene.

Examples

Example: ExampleBackgroundRectangle

../_images/ExampleBackgroundRectangle-1.png
from manim import *

class ExampleBackgroundRectangle(Scene):
    def construct(self):
        circle = Circle().shift(LEFT)
        circle.set_stroke(color=GREEN, width=20)
        triangle = Triangle().shift(2 * RIGHT)
        triangle.set_fill(PINK, opacity=0.5)
        backgroundRectangle1 = BackgroundRectangle(circle, color=WHITE, fill_opacity=0.15)
        backgroundRectangle2 = BackgroundRectangle(triangle, color=WHITE, fill_opacity=0.15)
        self.add(backgroundRectangle1)
        self.add(backgroundRectangle2)
        self.add(circle)
        self.add(triangle)
        self.play(Rotate(backgroundRectangle1, PI / 4))
        self.play(Rotate(backgroundRectangle2, PI / 2))

Methods

get_fill_color

If there are multiple colors (for gradient) this returns the first one

pointwise_become_partial

Given two bounds a and b, transforms the points of the self vmobject into the points of the vmobject passed as parameter with respect to the bounds.

set_style

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.

sheen_factor

stroke_color

width

The width of the mobject.

Parameters
  • color (Colors | None) –

  • stroke_width (float) –

  • stroke_opacity (float) –

  • fill_opacity (float) –

  • buff (float) –

get_fill_color()[source]#

If there are multiple colors (for gradient) this returns the first one

pointwise_become_partial(mobject, a, b)[source]#

Given two bounds a and b, transforms the points of the self vmobject into the points of the vmobject passed as parameter with respect to the bounds. Points here stand for control points of the bezier curves (anchors and handles)

Parameters
  • vmobject (VMobject) – The vmobject that will serve as a model.

  • a (float) – upper-bound.

  • b (float) – lower-bound

Returns

self

Return type

VMobject