igc-xc-score/src/util.js

igc-xc-score is a paragliding and hang-gliding XC scoring program in vanilla JS

'use strict';
export const REarth = 6371;

export const WGS84 = {
    a: 6378.137,
    b: 6356.752314245,
    f: 1 / 298.257223563
};

export function radians(degrees) {
    return degrees / (180 / Math.PI);
}

export function degrees(radians) {
    return radians * (180 / Math.PI);
}

export const consoleColors = {
    bright: '\x1b[1m',
    dim: '\x1b[2m',
    underscore: '\x1b[4m',
    blink: '\x1b[5m',
    reverse: '\x1b[7m',
    hidden: '\x1b[8m',
    fg: {
        black: '\x1b[30m',
        red: '\x1b[31m',
        green: '\x1b[32m',
        yellow: '\x1b[33m',
        blue: '\x1b[34m',
        magenta: '\x1b[35m',
        cyan: '\x1b[36m',
        white: '\x1b[37m',
        crimson: '\x1b[38m'
    },
    bg: {
        black: '\x1b[40m',
        red: '\x1b[41m',
        green: '\x1b[42m',
        yellow: '\x1b[43m',
        blue: '\x1b[44m',
        magenta: '\x1b[45m',
        cyan: '\x1b[46m',
        white: '\x1b[47m',
        crimson: '\x1b[48m'
    },
    reset: '\x1b[0m'
};