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Refactor common weather methods into utils class (#2958)
Co-authored-by: veeck <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| /* MagicMirror² | ||
| * Weather Util Methods | ||
| * | ||
| * By Rejas | ||
| * MIT Licensed. | ||
| */ | ||
| const WeatherUtils = { | ||
| /** | ||
| * Convert wind (from m/s) to beaufort scale | ||
| * | ||
| * @param {number} speedInMS the windspeed you want to convert | ||
| * @returns {number} the speed in beaufort | ||
| */ | ||
| beaufortWindSpeed(speedInMS) { | ||
| const windInKmh = (speedInMS * 3600) / 1000; | ||
| const speeds = [1, 5, 11, 19, 28, 38, 49, 61, 74, 88, 102, 117, 1000]; | ||
| for (const [index, speed] of speeds.entries()) { | ||
| if (speed > windInKmh) { | ||
| return index; | ||
| } | ||
| } | ||
| return 12; | ||
| }, | ||
|
|
||
| /** | ||
| * Convert temp (from degrees C) into imperial or metric unit depending on | ||
| * your config | ||
| * | ||
| * @param {number} tempInC the temperature in celsius you want to convert | ||
| * @param {string} unit can be 'imperial' or 'metric' | ||
| * @returns {number} the converted temperature | ||
| */ | ||
| convertTemp(tempInC, unit) { | ||
| return unit === "imperial" ? tempInC * 1.8 + 32 : tempInC; | ||
| }, | ||
|
|
||
| /** | ||
| * Convert wind speed into another unit. | ||
| * | ||
| * @param {number} windInMS the windspeed in meter/sec you want to convert | ||
| * @param {string} unit can be 'beaufort', 'kmh', 'knots, 'imperial' (mph) | ||
| * or 'metric' (mps) | ||
| * @returns {number} the converted windspeed | ||
| */ | ||
| convertWind(windInMS, unit) { | ||
| switch (unit) { | ||
| case "beaufort": | ||
| return this.beaufortWindSpeed(windInMS); | ||
| case "kmh": | ||
| return (windInMS * 3600) / 1000; | ||
| case "knots": | ||
| return windInMS * 1.943844; | ||
| case "imperial": | ||
| return windInMS * 2.2369362920544; | ||
| case "metric": | ||
| default: | ||
| return windInMS; | ||
| } | ||
| }, | ||
|
|
||
| /* | ||
| * Convert the wind direction cardinal to value | ||
| */ | ||
| convertWindDirection(windDirection) { | ||
| const windCardinals = { | ||
| N: 0, | ||
| NNE: 22, | ||
| NE: 45, | ||
| ENE: 67, | ||
| E: 90, | ||
| ESE: 112, | ||
| SE: 135, | ||
| SSE: 157, | ||
| S: 180, | ||
| SSW: 202, | ||
| SW: 225, | ||
| WSW: 247, | ||
| W: 270, | ||
| WNW: 292, | ||
| NW: 315, | ||
| NNW: 337 | ||
| }; | ||
|
|
||
| return windCardinals.hasOwnProperty(windDirection) ? windCardinals[windDirection] : null; | ||
| }, | ||
|
|
||
| convertWindToMetric(mph) { | ||
| return mph / 2.2369362920544; | ||
| }, | ||
|
|
||
| convertWindToMs(kmh) { | ||
| return kmh * 0.27777777777778; | ||
| } | ||
| }; | ||
|
|
||
| if (typeof module !== "undefined") { | ||
| module.exports = WeatherUtils; | ||
| } |
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