earth-triangulated v1.0.2

earth-triangulated

Mesh data for Earth, projected in 3D for easy rendering. Useable with Node and browserify, but note that it weighs in at ~470kB. For a lighter file, you'll want to use the raw position data from a Float32Array and load it back in as an ArrayBuffer using XMLHttpRequest.

view demo

Usage

earth.positions

A flat Float32Array containing the vertices of each country on Earth. Note that this is an unindexed mesh, so if you were planning to render this with WebGL you can simply use gl.TRIANGLES without the need for a gl.ELEMENT_ARRAY_BUFFER.

earth.ranges

A list of the vertex ranges for each country, i.e. where in earth.positions each country begins and ends:

{
  "AFG": [0, 602],
  "AGO": [603, 1241],
  "ALB": [1242, 1421],
  // ...
  "ZWE": [80505,80819]
}

earth.centroids

A list of the centroids of each country in the mesh indexed by country:

{
  "AFG": [-0.311692405023887,-0.7596524059851397,0.570767962250347],
  "AGO": [-0.9358763937343042,-0.2960691875556596,-0.1909932245683212],
  "ALB": [-0.7057509509290815,-0.2584029272708986,0.6596540930218867],
  // ...
  "ZWE": [-0.822293606069796,-0.468205677928872,-0.32344500084542444]
}

earth.index

Numerical indices of each country in the mesh, so you can refer to them in shaders consistently.

{
  "AFG": 0,
  "AGO": 1,
  "ALB": 2,
  // ...
  "ZWE": 176
}

Caveats

Antarctica is missing :(

License

MIT. See LICENSE.md for details.