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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

Troubleshooting & FAQ

Troubleshooting and questions

Why nothing appears, why the browser asks for the location, and the errors people meet in frameworks and on servers.

Nothing appears

  • A plain page with import "@johnmorrisdotca/chikyu-earth/element" in a script tag. A browser cannot resolve a package name. Use a CDN address (plain HTML), an import map, or a bundler (bundlers).
  • The tag has no size. <chikyu-earth> is display: block and as wide as its size attribute (320 by default); inside a flex or grid container give it a width.
  • The script is not a module. Use <script type="module">.
  • The console says the tag is not defined. The import has not run, or a framework removed an unknown tag before the element was registered: see frameworks.

The browser asks to know my location

With no center, the element centres on the reader, so the browser asks. Set center="lon,lat" and it never asks. The iframe embed never asks unless you write center=me.

"HTMLElement is not defined", or a server render fails

The element was imported on a server. Import /element only in code that runs in a browser (frameworks); on a server draw with globe() (TypeScript and Node).

React: "The style prop expects a mapping"

Use look, not style.

Vue: "Maximum call stack size exceeded"

A component file called ChikyuEarth.vue renders itself when its template says <chikyu-earth>. Rename the file.

Vue says "Failed to resolve component: chikyu-earth"

Tell the compiler the tag is a custom element: isCustomElement in frameworks.

The realistic Earth says it needs WebGL, or stays blank

The browser or the GPU gave no WebGL context (a blocklisted GPU, a remote desktop, a privacy setting). The element fires chikyu-unavailable; the demo shows the line globe instead. If the picture is blank and the console shows 404s, texture-base is wrong: it must be the folder that holds day-1024.webp and the other pictures.

Two realistic globes, and one shows an old picture

One WebGL context is shared by design. Press or focus a globe to give it the context; the other keeps its last picture until then.

The package is large in my bundle

Import the entry point you use, not the whole package: /element for the tag, the main entry for globe(). The outlines are about 100 KB of data in either; the realistic Earth adds its pictures only when a page shows one.

View sourceEdit on GitHubMade from the source of @johnmorrisdotca/chikyu-earth 0.11.0.