Dot¶

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

class Dot(location=tensor([0., 0., 0.]), radius=0.08, stroke_width=0, fill_opacity=1.0, color=Color([1., 1., 1., 0., 1.]), **kwargs)[source]¶

Bases: Circle

A small filled Circle, for marking a point.

Parameters:

location – Where to put it, shape (*, 3) in world units. Defaults to ORIGIN (the centre of the scene). The same name as location, which is what it sets.
radius – Radius in world units. Defaults to 0.08 – small enough to read as a marker beside shapes of unit size.
stroke_width – Width of the outline, in world units. Defaults to 0: a dot is solid fill with no border.
fill_opacity – Opacity of the fill, from 0 (invisible) to 1 (opaque). Defaults to 1.0.
color – An Algan Color, a named constant such as BLUE, or anything Color() accepts. Defaults to WHITE.
**kwargs – Passed to Circle and on to BezierCircuitCubic.

Examples

Three dots marking the corners of a triangle:

Example: Example1Dot ¶

from algan import *

for position in (UP, LEFT + DOWN, RIGHT + DOWN):
    Dot(location=position, radius=0.15, color=BLUE).spawn()

Scene.save_video()

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.
`radius`
`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).