リファレンス

暗い星 (UCAC4の約300万個、12等まで。見ている空の部分のタイルだけを読み込みます)

import { … } from "@johnmorrisdotca/hoshi-stars/faint";

最小化と gzip 圧縮をしたサイズは 5.9 kB（読み込むものをすべて含み、esbuild で計測）

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
`decodeFaintTile`	関数	Decode a tile file: `n` stars as six planes of `n` bytes (the step in declination, low and high byte; right ascension, low and high; magnitude; colour), the stars sorted by declination; `n` is the length over six.
`FAINT_LEVELS`	定数	The tile levels, brightest first.
`FAINT_LIMIT`	定数	The faintest magnitude in the tiles.
`FAINT_TILES_URL`	定数	Where the tiles are by default: the package's GitHub Pages site.
`FaintField`	型	A round patch of sky, in degrees: its middle and its radius.
`faintGrid`	関数	How many bands and how many tiles a level has.
`faintSky`	関数	Make the loader for the faint stars.
`FaintSky`	型	The faint stars of a page: loads the tiles a patch of sky needs, and answers from the ones it has.
`FaintSkyOptions`	型	What `faintSky` takes.
`FaintStar`	型	One faint star.
`faintStarsIn`	関数	The stars of some decoded tiles that lie in a round patch of sky and are as bright as a limit, brightest first.
`faintStarsWithTiles`	関数	The stars of some decoded tiles that lie in a round patch of sky and are as bright as a limit, brightest first, and the tile each came from.
`FaintTile`	型	A tile, decoded: the stars of one tile as parallel arrays, sorted by declination.
`faintTileBounds`	関数	The sky a tile covers: right ascension and declination from and to, in degrees.
`FaintTileId`	型	A tile: its level, its band of declination (0 at the south pole) and its column along the band (0 at right ascension 0).
`faintTilePath`	関数	Where a tile's file is, under the folder that holds the tiles: `L2/17-12.bin`.
`faintTilesFor`	関数	The tiles that cover a round patch of sky, for stars to a magnitude: every tile of the levels that hold stars that bright whose rectangle the patch may touch.

ソースを見る GitHub で編集@johnmorrisdotca/hoshi-stars 0.47.0 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。