VConstraint

Qualified name: manim\_pymunk.constraints.constraint.VConstraint

class VConstraint(**kwargs)

Bases: VGroup

The Manim base class for visualizing Pymunk physical constraints.

Methods

install	Installs physical constraints into the Pymunk physical space.
mob_updater	Updates the visual representation of constraints in real time.

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.

__check_data()

Verify the validity of constraint parameters. Requires subclass implementation

_abc_impl = <_abc._abc_data object>

_bezier_t_values: npt.NDArray[float]

_original__init__(**kwargs)

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

animation_overrides = {}

background_image: Image | str | None

background_stroke_color: ManimColor

background_stroke_opacity: float

background_stroke_width: float

cap_style: CapStyleType

close_new_points: bool

install(space)

Installs physical constraints into the Pymunk physical space. This method should be overridden by subclasses to implement the following:

1. Create Pymunk constraint objects

2. Initialize the vision component

3. Add constraints to the physical space

4. Bind an updater to keep the vision synchronized.

Parameters:

space (Space)

joint_type: LineJointType

make_smooth_after_applying_functions: bool

mob_updater(mob, dt)

Updates the visual representation of constraints in real time. This method should be overridden by subclasses and called in every frame, to synchronize the state of the visual components and the physics engine regarding constraints.

Parameters:

• mob (Mobject)

• dt (float)

n_points_per_cubic_curve: int

pre_function_handle_to_anchor_scale_factor: float

shade_in_3d: bool

submobjects: list[VMobject]

tolerance_for_point_equality: float