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Matthias Wirth
2020-04-23 10:23:58 +02:00
parent 91d14a64f0
commit abf2f47b45
1 changed files with 5 additions and 8 deletions
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13
html/planeObject.js
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@@ -2292,15 +2292,12 @@ function makeCircle(points, greyskull) {
return out;
}
// adapted from https://github.com/seangrogan/great_circle_calculator
function midpoint(from, to) {
let lon1 = from[0];
let lat1 = from[1];
let lon2 = to[0];
let lat2 = to[1];
lon1 *= (Math.PI/180);
lat1 *= (Math.PI/180);
lon2 *= (Math.PI/180);
lat2 *= (Math.PI/180);
let lon1 = from[0] * (Math.PI/180);
let lat1 = from[1] * (Math.PI/180);
let lon2 = to[0] * (Math.PI/180);
let lat2 = to[1] * (Math.PI/180);
let b_x = Math.cos(lat2) * Math.cos(lon2 - lon1);
let b_y = Math.cos(lat2) * Math.sin(lon2 - lon1);