jquery.simpleWeather.js
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/*! simpleWeather v3.0.2 - http://simpleweatherjs.com */
(function($) {
"use strict";
function getAltTemp(unit, temp) {
if(unit === 'f') {
return Math.round((5.0/9.0)*(temp-32.0));
} else {
return Math.round((9.0/5.0)*temp+32.0);
}
}
$.extend({
simpleWeather: function(options){
options = $.extend({
location: '',
woeid: '',
unit: 'f',
success: function(weather){},
error: function(message){}
}, options);
var now = new Date();
var weatherUrl = 'https://query.yahooapis.com/v1/public/yql?format=json&rnd='+now.getFullYear()+now.getMonth()+now.getDay()+now.getHours()+'&diagnostics=true&callback=?&q=';
if(options.location !== '') {
weatherUrl += 'select * from weather.forecast where woeid in (select woeid from geo.placefinder where text="'+options.location+'" and gflags="R" limit 1) and u="'+options.unit+'"';
} else if(options.woeid !== '') {
weatherUrl += 'select * from weather.forecast where woeid='+options.woeid+' and u="'+options.unit+'"';
} else {
options.error({message: "Could not retrieve weather due to an invalid location."});
return false;
}
$.getJSON(
encodeURI(weatherUrl),
function(data) {
if(data !== null && data.query !== null && data.query.results !== null && data.query.results.channel.description !== 'Yahoo! Weather Error') {
var result = data.query.results.channel,
weather = {},
forecast,
compass = ['N', 'NNE', 'NE', 'ENE', 'E', 'ESE', 'SE', 'SSE', 'S', 'SSW', 'SW', 'WSW', 'W', 'WNW', 'NW', 'NNW', 'N'],
image404 = "https://s.yimg.com/os/mit/media/m/weather/images/icons/l/44d-100567.png";
weather.title = result.item.title;
weather.temp = result.item.condition.temp;
weather.code = result.item.condition.code;
weather.todayCode = result.item.forecast[0].code;
weather.currently = result.item.condition.text;
weather.high = result.item.forecast[0].high;
weather.low = result.item.forecast[0].low;
weather.text = result.item.forecast[0].text;
weather.humidity = result.atmosphere.humidity;
weather.pressure = result.atmosphere.pressure;
weather.rising = result.atmosphere.rising;
weather.visibility = result.atmosphere.visibility;
weather.sunrise = result.astronomy.sunrise;
weather.sunset = result.astronomy.sunset;
weather.description = result.item.description;
weather.city = result.location.city;
weather.country = result.location.country;
weather.region = result.location.region;
weather.updated = result.item.pubDate;
weather.link = result.item.link;
weather.units = {temp: result.units.temperature, distance: result.units.distance, pressure: result.units.pressure, speed: result.units.speed};
weather.wind = {chill: result.wind.chill, direction: compass[Math.round(result.wind.direction / 22.5)], speed: result.wind.speed};
if(result.item.condition.temp < 80 && result.atmosphere.humidity < 40) {
weather.heatindex = -42.379+2.04901523*result.item.condition.temp+10.14333127*result.atmosphere.humidity-0.22475541*result.item.condition.temp*result.atmosphere.humidity-6.83783*(Math.pow(10, -3))*(Math.pow(result.item.condition.temp, 2))-5.481717*(Math.pow(10, -2))*(Math.pow(result.atmosphere.humidity, 2))+1.22874*(Math.pow(10, -3))*(Math.pow(result.item.condition.temp, 2))*result.atmosphere.humidity+8.5282*(Math.pow(10, -4))*result.item.condition.temp*(Math.pow(result.atmosphere.humidity, 2))-1.99*(Math.pow(10, -6))*(Math.pow(result.item.condition.temp, 2))*(Math.pow(result.atmosphere.humidity,2));
} else {
weather.heatindex = result.item.condition.temp;
}
if(result.item.condition.code == "3200") {
weather.thumbnail = image404;
weather.image = image404;
} else {
weather.thumbnail = "https://s.yimg.com/zz/combo?a/i/us/nws/weather/gr/"+result.item.condition.code+"ds.png";
weather.image = "https://s.yimg.com/zz/combo?a/i/us/nws/weather/gr/"+result.item.condition.code+"d.png";
}
weather.alt = {temp: getAltTemp(options.unit, result.item.condition.temp), high: getAltTemp(options.unit, result.item.forecast[0].high), low: getAltTemp(options.unit, result.item.forecast[0].low)};
if(options.unit === 'f') {
weather.alt.unit = 'c';
} else {
weather.alt.unit = 'f';
}
weather.forecast = [];
for(var i=0;i<result.item.forecast.length;i++) {
forecast = result.item.forecast[i];
forecast.alt = {high: getAltTemp(options.unit, result.item.forecast[i].high), low: getAltTemp(options.unit, result.item.forecast[i].low)};
if(result.item.forecast[i].code == "3200") {
forecast.thumbnail = image404;
forecast.image = image404;
} else {
forecast.thumbnail = "https://s.yimg.com/zz/combo?a/i/us/nws/weather/gr/"+result.item.forecast[i].code+"ds.png";
forecast.image = "https://s.yimg.com/zz/combo?a/i/us/nws/weather/gr/"+result.item.forecast[i].code+"d.png";
}
weather.forecast.push(forecast);
}
options.success(weather);
} else {
options.error({message: "There was an error retrieving the latest weather information. Please try again.", error: data.query.results.channel.item.title});
}
}
);
return this;
}
});
})(jQuery);