Convert altitude and latitude to zoom

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Fri Apr 23 2021 12:45:22 GMT+0000 (UTC)

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const EARTH_RADIUS_IN_METERS = 6371010
const TILE_SIZE = 256
const SCREEN_PIXEL_HEIGHT = 768

var zoom = (altitude, latitude) => Math.log(1 / Math.tan(Math.PI / 180 * 13.1 / 2) * (SCREEN_PIXEL_HEIGHT / 2) * 2 * Math.PI / (TILE_SIZE * altitude / (EARTH_RADIUS_IN_METERS * Math.cos(Math.PI / 180 * latitude)))) / Math.LN2;
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