Point¶

Qualified name: algan.mobs.shapes\_2d.Point

class Point(location=tensor([0., 0., 0.]), *args, **kwargs)[source]¶

Bases: BezierCircuitCubic

A single point, mostly useful as an invisible anchor.

It is a degenerate bezier circuit – four control points stacked on the same location – so it occupies no area and renders as nothing at the default black. Reach for it to give a Group a reference position, or as a become() target that collapses a shape to a dot. Use Dot when you want something visible.

Parameters:

location – Where the point sits, shape (*, 3) in world units. Defaults to ORIGIN.
*args – Passed to BezierCircuitCubic. color defaults to BLACK here rather than the usual shape default.
**kwargs – Passed to BezierCircuitCubic. color defaults to BLACK here rather than the usual shape default.

Methods

`get_num_points`
`get_points`
`point_from_proportion`

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).