リファレンス

日付ごとの太陽・月・惑星の位置を、二つの縮尺で。カメラの計算つき

import { … } from "@johnmorrisdotca/wakusei-planets/space";

リファレンスの説明と例は英語です。見出しと目次は日本語です。

エクスポート

名前	種類	概要
`AU_IN_EARTH_RADII`	定数	Earth radii in one astronomical unit.
`blend`	関数	A frame between two others, `t` from 0 to 1.
`compress`	関数	The same direction at a compressed distance from the Earth: the Moon is 10 Earth radii away, and a body k times further than the Moon is k^0.25 times as far here.
`createTrack`	関数	Answers for any moment from two real ones: `at(ms)` works out a frame only when `ms` leaves the span the last two answers cover, and then looks `stepMs` ahead, so playing time at a steady rate costs one pair of lookups every `stepMs` and every draw in between is arithmetic.
`EARTH_RADIUS_KM`	定数	The Earth's equatorial radius in kilometres (IAU), the unit of the scene's distances.
`frameAt`	関数	The state of the sky at `ms`: the Sun, the Moon and eight planets as seen from the Earth's centre, worked out by this package's own models in a fraction of a millisecond.
`groundDirection`	関数	The unit direction, in the scene's axes, of a longitude and latitude on the Earth as the stars see it at `ms`: the camera fixed to the stars looks at the same place on the ground only at that moment, and the Earth turns away under it as time runs.
`MOON_COMPRESSED`	定数	The Moon's distance in a compressed view, in Earth radii (the true one is about 60).
`placeAround`	関数	A place `helio` astronomical units from the Sun (a planet, or a point on its orbit), round the Sun at `sun`.
`placeMoon`	関数	The Moon, from the Earth's centre.
`placeSun`	関数	The Sun, from the Earth's centre: in a compressed view always 44 Earth radii away, in its real direction.
`planetOrbit`	関数	The path a planet takes round the Sun, as `count + 1` points round one trip from where the planet is at `ms`, from the Sun, in astronomical units and the scene's axes.
`radiusIn`	関数	A body's radius in Earth radii: the real one, or one large enough to see in a compressed view.
`RIDE_FOV`	定数	The field of view, in degrees, of a camera riding along at zoom 1.
`RideInput`	型	What `ridePose` is asked: the camera's place from the centre of the body it goes round and its way of travel (any length), that body's radius in the unit of the place, where it looks, and the shared controls' yaw, tilt and zoom.
`RideLook`	型	Where a riding camera looks: `down` straight at the centre of the body it goes round (the ground goes by under the camera), or `horizon` tipped forward along the way it is going until the horizon is a little above the middle of the view.
`ridePose`	関数	The camera of a body-borne view: at `position`, looking at the body it goes round (a Moon over the Earth, a moon over Jupiter, a spacecraft over Mars: any centre, by `radius`), with the way it is going at the top of the picture.
`RidePose`	型	The camera `ridePose` works out: where it is, which way it looks, which way is up in the picture, its field of view in degrees, and how big the body looks from there (its angular radius in degrees).
`ScaleMode`	型	The scale the space view is drawn in: `compressed` squeezes the distances so the Moon, the Sun and Neptune fit one view, and `true` keeps the real ones.
`SPACE_PLANETS`	定数	The planets the space view places, nearest the Sun first (the Earth is the middle of the view).
`SpaceFrame`	型	Where everything is at one moment: positions in astronomical units from the Earth's centre, in J2000 equatorial axes with y north.
`SpacePlanet`	型	One of the planets in `SPACE_PLANETS`.
`SpaceVec3`	型	A position or direction as `[x, y, z]` in the scene's axes: J2000 equatorial, x to the vernal equinox, y north.
`SUN_COMPRESSED`	定数	The Sun's distance from the Earth in a compressed view, in Earth radii (the true one is about 23,500).
`truePosition`	関数	A place in astronomical units from the Earth's centre, at true distance, in Earth radii.

ソースを見る GitHub で編集@johnmorrisdotca/wakusei-planets 0.24.0 のソースから作成しました。

この日本語は、まだ日本語を母語とする方の確認を受けていません。訂正を歓迎します。