ArcPolygonFromArcs

Qualified name: algan.mobs.manim\_compat.ArcPolygonFromArcs

class ArcPolygonFromArcs(*arcs, **kwargs)

Bases: ManimCompatMob

A generalized polygon allowing for points to be connected with arcs.

This version takes in pre-defined arcs to generate the arcpolygon and introduces little new syntax. However unlike Polygon it can’t be created with points directly.

For proper appearance the passed arcs should connect seamlessly: [a,b][b,c][c,a]

If there are any gaps between the arcs, those will be filled in with straight lines, which can be used deliberately for any straight sections. Arcs can also be passed as straight lines such as an arc initialized with angle=0.

Parameters:

• arcs (Arc | ArcBetweenPoints) – These are the arcs from which the arcpolygon is assembled.

• kwargs (Any) – Keyword arguments that are passed to the constructor of VMobject. Affects how the ArcPolygon itself is drawn, but doesn’t affect passed arcs.

arcs

The arcs used to initialize the ArcPolygonFromArcs:

>>> from manim import ArcPolygonFromArcs, Arc, ArcBetweenPoints
>>> ap = ArcPolygonFromArcs(Arc(), ArcBetweenPoints([1,0,0], [0,1,0]), Arc())
>>> ap.arcs
[Arc, ArcBetweenPoints, Arc]

Tip

Two instances of ArcPolygon can be transformed properly into one another as well. Be advised that any arc initialized with angle=0 will actually be a straight line, so if a straight section should seamlessly transform into an arced section or vice versa, initialize the straight section with a negligible angle instead (such as angle=0.0001).

Note

There is an alternative version (ArcPolygon) that can be instantiated with points.

See also

ArcPolygon

Methods

Attributes

animation_manager	This mob's scene-owned animation manager.
basis	The Mob's orientation and scale, as a flattened 3x3 matrix of shape (*, 9).
casts_shadows	Whether this Mob's geometry blocks light on its way from a light source to another surface -- whether it casts a shadow.
children	The Mobs attached below this one, in attachment order.
closed_shell	Whether this Mob's triangles form a CLOSED shell -- every camera ray that enters the geometry crosses a second time on its way out.
draws_descendants	Whether get_render_primitives returns geometry belonging to this Mob's DESCENDANTS as well as its own.
forward	Get the direction the Mob is facing.
lifespan	This mob's [spawn, despawn) interval on its Scene timeline (a Lifespan).
location	The Mob's position in world space, shape (*, 3).
normalized_basis	The Mob's orientation with scale divided out, shape (*, 9).
parents	The Mobs this one is attached to, in attachment order.
receives_shadows	Whether this Mob's surfaces are darkened by shadows cast onto them.
right	Get the Mob's own rightward direction.
scale_coefficient	The Mob's scale along its own right, up and forward axes, shape (*, 3).
stroke_color	The color of the circuit's border stroke.
two_sided	Whether this Mob's geometry should be lit from whichever side the ray arrives on.
up	Get the Mob's own upward direction.
x	The Mob's x coordinate in world units, shape (*, 1).
xy	The Mob's x and y coordinates in world units, shape (*, 2).
y	The Mob's y coordinate in world units, shape (*, 1).
z	The Mob's z coordinate in world units, shape (*, 1).
z_index	Which of two exactly coplanar circuits draws in front (higher wins).