Reference · The Sun, Moon and planets: pure parts
placeAroundfunction
A place helio astronomical units from the Sun (a planet, or a point on its orbit), round the Sun at sun. True: as it is. Compressed: the same direction from
the Sun, at 44 Earth radii times its distance in astronomical units to the power 0.45, so the Earth's own orbit is the 44 and Neptune's is about 200 (30 times as far, really).
Import it
import { placeAround } from "@johnmorrisdotca/chikyu-earth/space";
Definition
function placeAround(mode: ScaleMode, sun: Vec3, helio: Vec3): Vec3
Parameters
| Name | Type | Description |
|---|---|---|
mode | ScaleMode | The scale. |
sun | Vec3 | Where the Sun is drawn, in Earth radii. |
helio | Vec3 | The place in astronomical units from the Sun. |
Returns
Vec3
Where to draw the place, in Earth radii from the Earth's centre.
Examples
import { placeAround } from "@johnmorrisdotca/chikyu-earth/space";
console.log(placeAround("compressed", [44, 0, 0], [1, 0, 0]));[ 88, 0, 0 ]What it prints (run when this page was built)