earth-triangulated
v1.0.2
Published
Mesh data for Earth, projected in 3D
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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.
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.