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Chikyu Earth地球

A line-drawn globe of the world's countries that turns at the Earth's own rate, with an optional realistic Earth from space and markers for any place.

Chikyu is the Japanese word 地球 for the Earth. About the name

Contents

Reference · The data door: hand the package your own maps of the Earth or orbit data as a source with its own licence and credit, and see whose data is on the screen

gibsTilesfunction

A map source that reads NASA's imagery service directly. It declares its own grid (512 pixel tiles, the Geographic matrix, which is not the package's pyramid). need names no tile for a day outside the layer's range. load gives a tile two seconds, and treats a 404 or an all-black tile as no imagery. The clouds are not taken out of the daily layers.

Import it

import { gibsTiles } from "@johnmorrisdotca/chikyu-earth/door";

Definition

function gibsTiles(options: GibsTilesOptions): EarthMapSource

Parameters

NameTypeDescription
optionsGibsTilesOptions

The clock, the layer and the day rule, and the fetch to use.

Returns

EarthMapSource

The source. Its layer is day. It does not replace the package's own tiles: a view lays it over them, and only when the view is closer than those tiles serve.

Examples

import { gibsTiles } from "@johnmorrisdotca/chikyu-earth/door";

const source = gibsTiles({ time: () => new Date("2026-06-21T12:00:00Z") });
console.log(source.need({ lonMin: -1, lonMax: 1, latMin: -1, latMax: 1, layer: "day" }, 50000)[0]);
2000-12-01/7/79/39

What it prints (run when this page was built)

View sourceEdit on GitHubMade from the source of @johnmorrisdotca/chikyu-earth 0.51.1.