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leaflet-openweathermap.js
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/**
* A JavaScript library for using OpenWeatherMap's layers and OWM's city/station data for leaflet based maps without hassle.
* License: CC0 (Creative Commons Zero), see http://creativecommons.org/publicdomain/zero/1.0/
* Project page: https://github.com/buche/leaflet-openweathermap/
*/
L.OWM = L.TileLayer.extend({
baseUrl: "http://{s}.tile.openweathermap.org/map/{layername}/{z}/{x}/{y}.png",
options: {
maxZoom: 18,
showLegend: true,
legendImagePath: null,
legendPosition: 'bottomleft',
attribution: 'Weather from <a href="http://openweathermap.org/" alt="World Map and worldwide Weather Forecast online">OpenWeatherMap</a>'
},
initialize: function (options) {
L.Util.setOptions(this, options);
this._map = null;
this._legendControl = null;
this._legendId = null;
L.TileLayer.prototype.initialize.call(this, this._owmtileurl, options);
},
onAdd: function(map) {
this._map = map;
if (this.options.showLegend && this.options.legendImagePath != null) {
this._legendControl = this._getLegendControl();
this._legendId = this._legendControl.addLegend(this.options.legendImagePath);
}
L.TileLayer.prototype.onAdd.call(this, map);
},
onRemove: function(map) {
if (this._legendControl != null) {
this._legendControl.removeLegend(this._legendId);
this._legendControl = null;
this._legendId = null;
}
L.TileLayer.prototype.onRemove.call(this, map);
this._map = null;
},
_getLegendControl: function() {
if (typeof this._map._owm_legendcontrol == 'undefined' || !this._map._owm_legendcontrol) {
this._map._owm_legendcontrol = new L.OWM.LegendControl({position: this.options.legendPosition});
this._map.addControl(this._map._owm_legendcontrol);
}
return this._map._owm_legendcontrol;
}
});
(function () {
L.OWM.Precipitation = L.OWM.extend({
_owmtileurl: L.OWM.prototype.baseUrl.replace('{layername}', 'precipitation')
});
L.OWM.precipitation = function (options) { return new L.OWM.Precipitation(options); };
L.OWM.PrecipitationClassic = L.OWM.extend({
_owmtileurl: L.OWM.prototype.baseUrl.replace('{layername}', 'precipitation_cls')
});
L.OWM.precipitationClassic = function (options) {
var layer = new L.OWM.PrecipitationClassic(options);
if (layer.options.legendImagePath == null) {
layer.options.legendImagePath = 'http://openweathermap.org/img/a/PR.png';
}
return layer;
};
L.OWM.Rain = L.OWM.extend({
_owmtileurl: L.OWM.prototype.baseUrl.replace('{layername}', 'rain')
});
L.OWM.rain = function (options) { return new L.OWM.Rain(options); };
L.OWM.RainClassic = L.OWM.extend({
_owmtileurl: L.OWM.prototype.baseUrl.replace('{layername}', 'rain_cls')
});
L.OWM.rainClassic = function (options) {
var layer = new L.OWM.RainClassic(options);
if (layer.options.legendImagePath == null) {
layer.options.legendImagePath = 'http://openweathermap.org/img/a/RN.png';
}
return layer;
};
L.OWM.Snow = L.OWM.extend({
_owmtileurl: L.OWM.prototype.baseUrl.replace('{layername}', 'snow')
});
L.OWM.snow = function (options) { return new L.OWM.Snow(options); };
L.OWM.Clouds = L.OWM.extend({
_owmtileurl: L.OWM.prototype.baseUrl.replace('{layername}', 'clouds')
});
L.OWM.clouds = function (options) { return new L.OWM.Clouds(options); };
L.OWM.CloudsClassic = L.OWM.extend({
_owmtileurl: L.OWM.prototype.baseUrl.replace('{layername}', 'clouds_cls')
});
L.OWM.cloudsClassic = function (options) {
var layer = new L.OWM.CloudsClassic(options);
if (layer.options.legendImagePath == null) {
layer.options.legendImagePath = 'http://openweathermap.org/img/a/NT.png';
}
return layer;
};
L.OWM.Pressure = L.OWM.extend({
_owmtileurl: L.OWM.prototype.baseUrl.replace('{layername}', 'pressure')
});
L.OWM.pressure = function (options) {
var layer = new L.OWM.Pressure(options);
if (layer.options.legendImagePath == null) {
layer.options.legendImagePath = 'http://openweathermap.org/img/a/PN.png';
}
return layer;
};
L.OWM.PressureContour = L.OWM.extend({
_owmtileurl: L.OWM.prototype.baseUrl.replace('{layername}', 'pressure_cntr')
});
L.OWM.pressureContour = function (options) { return new L.OWM.PressureContour(options); };
L.OWM.Temperature = L.OWM.extend({
_owmtileurl: L.OWM.prototype.baseUrl.replace('{layername}', 'temp')
});
L.OWM.temperature = function (options) { return new L.OWM.Temperature(options); };
L.OWM.Wind = L.OWM.extend({
_owmtileurl: L.OWM.prototype.baseUrl.replace('{layername}', 'wind')
});
L.OWM.wind = function (options) { return new L.OWM.Wind(options); };
}());
L.OWM.LegendControl = L.Control.extend({
options: {
position: "bottomleft"
},
initialize: function(options) {
L.Util.setOptions(this, options);
this._container = L.DomUtil.create('div', 'owm-legend-container');
this._container.style.display = 'none';
this._legendCounter = 0;
this._legendContainer = new Array();
},
onAdd: function(map) {
return this._container;
},
addLegend: function(legendImagePath) {
var legendId = this._legendCounter++;
this._legendContainer[legendId] = legendImagePath;
this._redrawLegend();
this._container.style.display = 'block';
return legendId;
},
removeLegend: function(legendId) {
if (typeof this._legendContainer[legendId] != 'undefined') {
delete this._legendContainer[legendId];
}
// reset counter if no legend is in collection
var containerEmpty = true;
for (var idx in this._legendContainer) {
containerEmpty = false;
break;
}
if (containerEmpty) {
this._legendCounter = 0;
this._container.style.display = 'none';
}
this._redrawLegend();
},
_redrawLegend: function() {
this._container.innerHTML = ''; // clear container
var isLeft = this.options.position.indexOf('left') !== -1;
var cssFloat = isLeft ? 'left' : 'right';
for (var idx in this._legendContainer) {
var imgPath = this._legendContainer[idx];
var item = L.DomUtil.create('div', 'owm-legend-item', this._container);
item.style.cssFloat = cssFloat;
if (isLeft) {
item.style.marginRight = '10px';
} else {
item.style.marginLeft = '10px';
}
item.innerHTML = '<img src="' + imgPath + '" border="0" />';
}
}
});
/**
* Layer for current weather (cities and stations).
*/
L.OWM.Current = L.Class.extend({
includes: L.Mixin.Events,
options: {
appId: null, // get your free Application ID at www.openweathermap.org
type: 'city', // available types: 'city', 'station'
lang: 'en', // available: 'en', 'de', 'ru', 'fr' (not every laguage is finished yet)
minZoom: 7,
intervall: 0, // intervall for rereading city/station data in minutes
progressControl: true, // available: true, false
imageLoadingUrl: 'owmloading.gif', // URL of loading image relative to HTML document
imageLoadingBgUrl: null, // URL of background image for progress control
temperatureUnit: 'C', // available: 'K' (Kelvin), 'C' (Celsius), 'F' (Fahrenheit)
temperatureDigits: 1,
speedUnit: 'ms', // available: 'ms' (m/s), 'kmh' (km/h), 'mph' (mph)
speedDigits: 0,
popup: true, // available: true, false
keepPopup: true, // available: true, false
showOwmStationLink: true, // available: true, false
showWindSpeed: 'both', // available: 'speed', 'beaufort', 'both'
showWindDirection: 'both', // available: 'deg', 'desc', 'both'
showTimestamp: true, // available: true, false
showTempMinMax: true, // available: true, false
useLocalTime: true, // available: true, false
clusterSize: 150,
imageUrlCity: 'http://openweathermap.org/img/w/{icon}.png',
imageWidth: 50,
imageHeight: 50,
imageUrlStation: 'http://openweathermap.org/img/s/istation.png',
imageWidthStation: 25,
imageHeightStation: 25,
imageUrlPlane: 'http://openweathermap.org/img/s/iplane.png',
imageWidthPlane: 25,
imageHeightPlane: 25,
markerFunction: null, // user defined function for marker creation
popupFunction: null, // user defined function for popup creation
caching: true, // use caching of current weather data
cacheMaxAge: 15 // maximum age of cache content in minutes before it gets invalidated
},
initialize: function(options) {
L.setOptions(this, options);
this._layer = L.layerGroup();
this._timeoutId = null;
this._requests = {};
this._markers = new Array();
this._markedMarker = null;
this._map = null;
this._urlTemplate = 'http://api.openweathermap.org/data/2.1/find/{type}?{appId}bbox={minlon},{minlat},{maxlon},{maxlat},10';
this._directions = ['N', 'NNE', 'NE', 'ENE', 'E', 'ESE', 'SE', 'SSE', 'S', 'SSW', 'SW', 'WSW', 'W', 'WNW', 'NW', 'NNW', 'N'];
this._msbft = [0.3, 1.6, 3.4, 5.5, 8.0, 10.8, 13.9, 17.2, 20.8, 24.5, 28.5, 32.7, 37.0, 41.5, 46.2, 51.0, 56.1, 61.3]; // Beaufort scala
this._tempUnits = { K: 'K', C: '°C', F: 'F'};
this._progressCtrl = null;
if (this.options.progressControl) {
var bgIcon;
if (this.options.imageLoadingBgUrl) {
bgIcon = this.options.imageLoadingBgUrl;
} else {
bgIcon = this.options.imageUrlCity.replace('{icon}', '10d');
if (this.options.type != 'city') {
var bgIcon = this.options.imageUrlStation;
}
}
this._progressCtrl = L.OWM.progressControl({
type: this.options.type
, bgImage: bgIcon
, imageLoadingUrl: this.options.imageLoadingUrl
, owmInstance: this
});
}
this._cache = L.OWM.currentCache({ maxAge: this.options.cacheMaxAge });
},
onAdd: function(map) {
this._map = map;
this._map.addLayer(this._layer);
this._map.on('moveend', this.update, this);
// add progress control
if (this._progressCtrl != null) {
this._map.addControl(this._progressCtrl);
}
this.update();
},
onRemove: function(map) {
// clear timeout
if (this._timeoutId !== null) {
window.clearTimeout(this._timeoutId);
this._timeoutId = null;
}
// remove progress control
if (this._progressCtrl != null) {
this._map.removeControl(this._progressCtrl);
}
// remove layer and markers
this._map.off('moveend', this.update, this);
this._map.removeLayer(this._layer);
this._layer.clearLayers();
this._map = null;
this._cache.clear();
},
getAttribution: function() {
return 'Weather from <a href="http://openweathermap.org/" '
+ 'alt="World Map and worldwide Weather Forecast online">OpenWeatherMap</a>';
},
update: function() {
// clear existing timeout
if (this._timeoutId) {
window.clearTimeout(this._timeoutId);
this._timeoutId = null;
}
var _this = this;
// clear requests for all types
for (var typ in this._requests) {
var request = this._requests[typ];
this.fire('owmloadingend', {type: typ});
request.abort();
}
this._requests = {};
if (this._map.getZoom() < this.options.minZoom) {
this.fire('owmloadingend', {type: _this.options.type});
// Info to user?
return;
}
// try to get cached data first
var bounds = this._map.getBounds();
var data = null;
if (this.options.caching) {
data = this._cache.get(bounds.getWest(), bounds.getSouth(), bounds.getEast(), bounds.getNorth());
}
if (data !== null) {
// using cached data
this._processRequestedData(this, data);
} else {
// fetch new data from OWM
this.fire('owmloadingstart', {type: _this.options.type});
var url = this._urlTemplate
.replace('{appId}', this.options.appId ? 'APPID=' + this.options.appId + '&' : '')
.replace('{type}', this.options.type)
.replace('{minlon}', bounds.getWest())
.replace('{minlat}', bounds.getSouth())
.replace('{maxlon}', bounds.getEast())
.replace('{maxlat}', bounds.getNorth())
;
this._requests[this.options.type] = L.OWM.Utils.jsonp(url, function(data) {
delete _this._requests[_this.options.type];
if (!_this._map) {
// Nothing to do if layer is gone but this request is still active
return;
}
if (_this.options.caching) {
_this._cache.set(data, _this._map.getBounds());
}
_this._processRequestedData(_this, typeof data.list == 'undefined' ? new Array() : data.list);
_this.fire('owmloadingend', {type: _this.options.type});
});
}
if (this.options.intervall && this.options.intervall > 0) {
this._timeoutId = window.setTimeout(function() {_this.update()}, 60000*this.options.intervall);
}
},
_processRequestedData: function(_this, data) {
// read all stations/cities
var stations = {};
for (var i in data) {
var stat = data[i];
if (!_this._map) { // maybe layer is gone while we are looping here
return;
}
// only use stations/cities having a minimum distance of some pixels on the map
var pt = _this._map.latLngToLayerPoint(new L.LatLng(stat.coord.lat, stat.coord.lon));
var key = '' + (Math.round(pt.x/_this.options.clusterSize)) + "_" + (Math.round(pt.y/_this.options.clusterSize));
if (!stations[key] || parseInt(stations[key].rang) < parseInt(stat.rang)) {
stations[key] = stat;
}
}
// hide LayerGroup from map and remove old markers
var markerWithPopup = null;
if (_this.options.keepPopup) {
markerWithPopup = _this._getMarkerWithPopup(_this._markers);
}
if (_this._map && _this._map.hasLayer(_this._layer)) {
_this._map.removeLayer(_this._layer);
}
_this._layer.clearLayers();
// add the stations/cities as markers to the LayerGroup
_this._markers = new Array();
for (var key in stations) {
var marker;
if (_this.options.markerFunction != null && typeof _this.options.markerFunction == 'function') {
marker = _this.options.markerFunction.call(_this, stations[key]);
} else {
marker = _this._createMarker(stations[key]);
}
marker.options.owmId = stations[key].id;
_this._layer.addLayer(marker);
_this._markers.push(marker);
if (_this.options.popup) {
if (_this.options.popupFunction != null && typeof _this.options.popupFunction == 'function') {
marker.bindPopup(_this.options.popupFunction.call(_this, stations[key]));
} else {
marker.bindPopup(_this._createPopup(stations[key]));
}
}
if (markerWithPopup != null
&& typeof markerWithPopup.options.owmId != 'undefined'
&& markerWithPopup.options.owmId == marker.options.owmId) {
markerWithPopup = marker;
}
}
// add the LayerGroup to the map
_this._map && _this._map.addLayer(_this._layer);
if (markerWithPopup != null) {
markerWithPopup.openPopup();
}
_this.fire('owmlayeradd', {markers: _this._markers});
},
_getMarkerWithPopup: function(markers) {
var marker = null;
for (var idx in markers) {
var m = markers[idx];
if (m._popup && m._map && m._map.hasLayer(m._popup)) {
marker = m;
break;
}
}
return marker;
},
_createPopup: function(station) {
var showLink = typeof station.id != 'undefined' && this.options.showOwmStationLink;
var txt = '<div class="owm-popup-name">';
if (showLink) {
var typ = 'station';
if (typeof station.weather != 'undefined') {
typ = 'city';
}
txt += '<a href="http://openweathermap.org/' + typ + '/' + station.id + '" target="_blank" title="'
+ this.i18n('owmlinktitle', 'Details at OpenWeatherMap') + '">';
}
txt += station.name;
if (showLink) {
txt += '</a>';
}
txt += '</div>';
if (typeof station.weather != 'undefined' && typeof station.weather[0] != 'undefined') {
if (typeof station.weather[0].description != 'undefined' && typeof station.weather[0].id != 'undefined') {
txt += '<div class="owm-popup-description">'
+ this.i18n('id'+station.weather[0].id, station.weather[0].description + ' (' + station.weather[0].id + ')')
+ '</div>';
}
}
var imgData = this._getImageData(station);
txt += '<div class="owm-popup-main"><img src="' + imgData.url + '" width="' + imgData.width
+ '" height="' + imgData.height + '" border="0" />';
if (typeof station.main != 'undefined' && typeof station.main.temp != 'undefined') {
txt += '<span class="owm-popup-temp">' + this._temperatureConvert(station.main.temp)
+ ' ' + this._displayTemperatureUnit() + '</span>';
}
txt += '</div>';
txt += '<div class="owm-popup-details">';
if (typeof station.main != 'undefined') {
if (typeof station.main.humidity != 'undefined') {
txt += '<div class="owm-popup-detail">'
+ this.i18n('humidity', 'Humidity')
+ ': ' + station.main.humidity + ' %</div>';
}
if (typeof station.main.pressure != 'undefined') {
txt += '<div class="owm-popup-detail">'
+ this.i18n('pressure', 'Pressure')
+ ': ' + station.main.pressure + ' hPa</div>';
}
if (this.options.showTempMinMax) {
if (typeof station.main.temp_max != 'undefined' && typeof station.main.temp_min != 'undefined') {
txt += '<div class="owm-popup-detail">'
+ this.i18n('temp_minmax', 'Temp. min/max')
+ ': '
+ this._temperatureConvert(station.main.temp_min)
+ ' / '
+ this._temperatureConvert(station.main.temp_max)
+ ' ' + this._displayTemperatureUnit() + '</div>';
}
}
}
if (typeof station.rain != 'undefined' && typeof station.rain['1h'] != 'undefined') {
txt += '<div class="owm-popup-detail">'
+ this.i18n('rain_1h', 'Rain (1h)')
+ ': ' + station.rain['1h'] + ' ml</div>';
}
if (typeof station.wind != 'undefined') {
if (typeof station.wind.speed != 'undefined') {
txt += '<div class="owm-popup-detail">';
if (this.options.showWindSpeed == 'beaufort' || this.options.showWindSpeed == 'both') {
txt += this.i18n('windforce', 'Wind Force')
+ ': ' + this._windMsToBft(station.wind.speed);
if (this.options.showWindSpeed == 'both') {
txt += ' (' + this._convertSpeed(station.wind.speed) + ' '
+ this._displaySpeedUnit() + ')';
}
} else {
txt += this.i18n('wind', 'Wind') + ': '
+ this._convertSpeed(station.wind.speed) + ' '
+ this._displaySpeedUnit();
}
txt += '</div>';
}
if (typeof station.wind.gust != 'undefined') {
txt += '<div class="owm-popup-detail">';
if (this.options.showWindSpeed == 'beaufort' || this.options.showWindSpeed == 'both') {
txt += this.i18n('gust', 'Gust')
+ ': ' + this._windMsToBft(station.wind.gust);
if (this.options.showWindSpeed == 'both') {
txt += ' (' + this._convertSpeed(station.wind.gust) + ' '
+ this._displaySpeedUnit() + ')';
}
} else {
txt += this.i18n('gust', 'Gust') + ': '
+ this._convertSpeed(station.wind.gust) + ' '
+ this._displaySpeedUnit();
}
txt += '</div>';
}
if (typeof station.wind.deg != 'undefined') {
txt += '<div class="owm-popup-detail">';
txt += this.i18n('direction', 'Windrichtung') + ': ';
if (this.options.showWindDirection == 'desc' || this.options.showWindDirection == 'both') {
txt += this._directions[(station.wind.deg/22.5).toFixed(0)];
if (this.options.showWindDirection == 'both') {
txt += ' (' + station.wind.deg + '°)';
}
} else {
txt += station.wind.deg + '°';
}
txt += '</div>';
}
}
if (typeof station.dt != 'undefined' && this.options.showTimestamp) {
txt += '<div class="owm-popup-timestamp">';
txt += '(' + this._convertTimestamp(station.dt) + ')';
txt += '</div>';
}
txt += '</div>';
return txt;
},
_getImageData: function(station) {
var imageUrl;
var imageWidth = this.options.imageWidth;
var imageHeight = this.options.imageHeight;
var imageUrlTemplate = this.options.imageUrlCity;
if (station.weather && station.weather[0] && station.weather[0].icon) {
imageUrl = imageUrlTemplate.replace('{icon}', station.weather[0].icon);
} else if (station.type && station.type == 1) {
imageUrl = this.options.imageUrlPlane;
imageWidth = this.options.imageWidthPlane;
imageHeight = this.options.imageWidthPLane;
} else {
imageUrl = this.options.imageUrlStation;
imageWidth = this.options.imageWidthStation;
imageHeight = this.options.imageWidthStation;
}
return {url: imageUrl, width: imageWidth, height: imageHeight};
},
_createMarker: function(station) {
var imageData = this._getImageData(station);
var icon = L.divIcon({
className: ''
, iconAnchor: new L.Point(25, imageData.height/2)
, popupAnchor: new L.Point(0, -10)
, html: this._icondivtext(station, imageData.url, imageData.width, imageData.height)
});
var marker = L.marker([station.coord.lat, station.coord.lon], {icon: icon});
return marker;
},
_icondivtext: function(station, imageurl, width, height) {
var txt = '';
txt += '<div class="owm-icondiv">'
+ '<img src="' + imageurl + '" border="0" width="' + width + '" height="' + height + '" />';
if (typeof station.main != 'undefined' && typeof station.main.temp != 'undefined') {
txt += '<div class="owm-icondiv-temp">' + this._temperatureConvert(station.main.temp)
+ ' ' + this._displayTemperatureUnit() + '</div>';
}
txt += '</div>';
return txt;
},
_temperatureConvert: function(tempK) {
var temp = tempK;
switch (this.options.temperatureUnit) {
case 'C':
temp = (tempK-273.15);
break;
case 'F':
temp = (tempK*1.8-459.67);
break;
}
return temp.toFixed(this.options.temperatureDigits);
},
_displayTemperatureUnit: function() {
var unit = this._tempUnits['K'];
if (typeof this._tempUnits[this.options.temperatureUnit] != 'undefined') {
unit = this._tempUnits[this.options.temperatureUnit];
}
return unit;
},
_windMsToBft: function(ms) {
var bft = 18;
for (var key in this._msbft) {
if (ms < this._msbft[key]) {
bft = key;
break;
}
}
return bft;
},
_displaySpeedUnit: function() {
var unit = 'm/s';
switch (this.options.speedUnit) {
case 'kmh':
unit = 'km/h'
break;
case 'mph':
unit = 'mph'
break;
}
return unit;
},
_convertSpeed: function(speed) {
var sp = speed;
switch (this.options.speedUnit) {
case 'kmh':
sp = 3.6*sp;
break;
case 'mph':
sp = 2.236*sp;
break;
}
return sp.toFixed(this.options.speedDigits);
},
_convertTimestamp: function(tstmp) {
if (this.options.useLocalTime) {
return (new Date(tstmp*1000));
} else {
return (new Date(tstmp*1000)).toUTCString();
}
},
i18n: function(key, fallback) {
var lang = this.options.lang;
if (typeof L.OWM.Utils.i18n != 'undefined'
&& typeof L.OWM.Utils.i18n[lang] != 'undefined'
&& typeof L.OWM.Utils.i18n[lang][key] != 'undefined') {
return L.OWM.Utils.i18n[lang][key]
}
return fallback;
}
});
L.OWM.current = function(options) { return new L.OWM.Current(options); };
L.OWM.ProgressControl = L.Control.extend({
includes: L.Mixin.Events,
options: {
position: "topleft",
type: 'city',
bgImage: null // bgImage is set in L.OWM.Current when creating this ProgressControll instance
},
initialize: function(options) {
L.Util.setOptions(this, options);
this._container = L.DomUtil.create('div', 'leaflet-control-layers');
if (this.options.bgImage != null) {
this._container.style.backgroundImage ='url(' + this.options.bgImage + ')';
this._container.style.backgroundRepeat = 'no-repeat';
this._container.style.backgroundPosition = 'center center';
}
L.DomEvent.disableClickPropagation(this._container);
this._container.innerHTML = '<img src="' + this.options.imageLoadingUrl + '" width="50" height="50" />';
},
onAdd: function(map) {
this._map = map;
this.options.owmInstance.on('owmloadingstart', this._activate, this);
this.options.owmInstance.on('owmloadingend', this._deactivate, this);
return this._container;
},
_activate: function(e) {
if (e.target.options.type == this.options.type) {
this._container.style.display = 'block';
}
},
_deactivate: function(e) {
if (e.target.options.type == this.options.type) {
this._container.style.display = 'none';
}
},
onRemove: function(map) {
this.options.owmInstance.off('owmloadingstart', this._activate, this);
this.options.owmInstance.off('owmloadingend', this._deactivate, this);
this._container.style.display = 'none';
this._map = null;
}
});
L.OWM.progressControl = function(options) { return new L.OWM.ProgressControl(options); };
L.OWM.CurrentCache = L.Class.extend({
options: {
maxAge: 15 // age in minutes before cache data is invalidated
},
initialize: function(options) {
L.Util.setOptions(this, options);
this.clear();
},
clear: function() {
this._cachedData = null;
this._cachedTime = 0;
this._cachedBBox = {minLon: 181, minLat: 91, maxLon: -181, maxLat: -91};
},
get: function(minLon, minLat, maxLon, maxLat) {
if (this._cachedData == null) {
// no cached data available
return null;
}
if ((new Date()).getTime() - this._cachedTime > 60000*this.options.maxAge) {
// cached data is too old
this.clear();
return null;
}
if (minLon <= this._cachedBBox.minLon || minLat <= this._cachedBBox.minLat
|| maxLon >= this._cachedBBox.maxLon || maxLat >= this._cachedBBox.maxLat) {
// new area is outside of cached area
this.clear();
return null;
}
// clip cached data to bounds
var clippedStations = new Array();
var cnt = 0;
for (var k in this._cachedData.list) {
var station = this._cachedData.list[k];
if (station.coord.lon >= minLon && station.coord.lon <= maxLon
&& station.coord.lat >= minLat && station.coord.lat <= maxLat) {
clippedStations[k] = station;
cnt++;
}
}
return clippedStations;
},
set: function(data, bounds) {
this._cachedData = data;
this._cachedBBox.minLon = bounds.getWest();
this._cachedBBox.minLat = bounds.getSouth();
this._cachedBBox.maxLon = bounds.getEast();
this._cachedBBox.maxLat = bounds.getNorth();
this._cachedTime = (new Date()).getTime();
}
});
L.OWM.currentCache = function(options) { return new L.OWM.CurrentCache(options); };
L.OWM.Utils = {
callbacks: {},
callbackCounter: 0,
jsonp: function(url, callbackFn) {
var _this = this;
var elem = document.createElement('script');
var counter = this.callbackCounter++;
var callback = 'L.OWM.Utils.callbacks[' + counter + ']';
var abort = function() {
if (elem.parentNode) {
return elem.parentNode.removeChild(elem);
}
};
this.callbacks[counter] = function(data) {
delete _this.callbacks[counter];
return callbackFn(data);
};
elem.src = '' + url + (url.indexOf('?') >= 0 ? '&' : '?') + 'callback=' + callback;
elem.type = 'text/javascript';
document.getElementsByTagName('body')[0].appendChild(elem);
return { abort: abort };
},
i18n: {
en: {
owmlinktitle: 'Details at OpenWeatherMap'
, temperature: 'Temperature'
, temp_minmax: 'Temp. min/max'
, wind: 'Wind'
, gust: 'Gust'
, windforce: 'Wind Force'
, direction: 'Direction'
, rain_1h: 'Rain'
, humidity: 'Humidity'
, pressure: 'Pressure'
// weather conditions, see http://openweathermap.org/wiki/API/Weather_Condition_Codes
, id200: 'Thunderstorm with Light Rain'
, id201: 'Thunderstorm with Rain'
, id202: 'Thunderstorm with Heavy Rain'
, id210: 'Light Thunderstorm'
, id211: 'Thunderstorm'
, id212: 'Heavy Thunderstorm'
, id221: 'Ragged Thunderstorm'
, id230: 'Thunderstorm with Light Drizzle'
, id231: 'Thunderstorm with Drizzle'
, id232: 'Thunderstorm with Heavy Drizzle'
, id300: 'Light Intensity Drizzle'
, id301: 'Drizzle'
, id302: 'Heavy Intensity Drizzle'
, id310: 'Light Intensity Drizzle Rain'
, id311: 'Drizzle Rain'
, id312: 'Heavy Intensity Drizzle Rain'
, id321: 'Shower Drizzle'
, id500: 'Light Rain'
, id501: 'Moderate Rain'
, id502: 'Heavy Intensity Rain'
, id503: 'Very Heavy Rain'
, id504: 'Extreme Rain'
, id511: 'Freezing Rain'
, id520: 'Light Intensity Shower Rain'
, id521: 'Shower Rain'
, id522: 'Heavy Intensity Shower Rain'
, id600: 'Light Snow'
, id601: 'Snow'
, id602: 'Heavy Snow'
, id611: 'Sleet'
, id621: 'Shower Snow'
, id622: 'Heavy Shower Snow'
, id701: 'Mist'
, id711: 'Smoke'
, id721: 'Haze'
, id731: 'Sand/Dust Whirls'
, id741: 'Fog'
, id751: 'Sand'
, id800: 'Sky is Clear'
, id801: 'Few Clouds'
, id802: 'Scattered Clouds'
, id803: 'Broken Clouds'
, id804: 'Overcast Clouds'
, id900: 'Tornado'
, id901: 'Tropical Storm'
, id902: 'Hurricane'
, id903: 'Cold'
, id904: 'Hot'
, id905: 'Windy'
, id906: 'Hail'
},
de: {
owmlinktitle: 'Details bei OpenWeatherMap'
, temperature: 'Temperatur'
, temp_minmax: 'Temp. min/max'
, wind: 'Wind'
, gust: 'Windböen'
, windforce: 'Windstärke'
, direction: 'Windrichtung'
, rain_1h: 'Regen'
, humidity: 'Luftfeuchtigkeit'
, pressure: 'Luftdruck'
// Wetterbedingungen, siehe http://openweathermap.org/wiki/API/Weather_Condition_Codes
, id200: 'Gewitter mit leichtem Regen' // 'Thunderstorm with Light Rain'
, id201: 'Gewitter mit Regen' // 'Thunderstorm with Rain'
, id202: 'Gewitter mit Starkregen' // 'Thunderstorm with Heavy Rain'
, id210: 'Leichtes Gewitter' // 'Light Thunderstorm'
, id211: 'Mäßiges Gewitter' // 'Thunderstorm'
, id212: 'Starkes Gewitter' // 'Heavy Thunderstorm'
// , id221: 'Ragged Thunderstorm'
// , id230: 'Thunderstorm with Light Drizzle'
// , id231: 'Thunderstorm with Drizzle'
// , id232: 'Thunderstorm with Heavy Drizzle'
, id300: 'Leichter Nieselregen' // 'Light Intensity Drizzle'
, id301: 'Nieselregen' // 'Drizzle'
, id302: 'Starker Nieselregen' // 'Heavy Intensity Drizzle'
// , id310: 'Light Intensity Drizzle Rain'
// , id311: 'Drizzle Rain'
// , id312: 'Heavy Intensity Drizzle Rain'
// , id321: 'Shower Drizzle'
, id500: 'Leichter Regen' // 'Light Rain'
, id501: 'Mäßiger Regen' // 'Moderate Rain'
, id502: 'Starker Regen' // 'Heavy Intensity Rain'
, id503: 'Ergiebiger Regen' // 'Very Heavy Rain'
, id504: 'Starkregen' // 'Extreme Rain'
, id511: 'Gefrierender Regen' // 'Freezing Rain'
, id520: 'Leichte Regenschauer' // 'Light Intensity Shower Rain'
, id521: 'Mäßige Regenschauer' // 'Shower Rain'
, id522: 'Wolkenbruchartige Regenschauer' // 'Heavy Intensity Shower Rain'
, id600: 'Leichter Schneefall' // 'Light Snow'
, id601: 'Mäßiger Schneefall' // 'Snow'
, id602: 'Starker Schneefall' // 'Heavy Snow'
, id611: 'Schneeregen' // 'Sleet'
, id621: 'Schneeschauer' // 'Shower Snow'
, id622: 'Starke Schneeschauer' // 'Heavy Shower Snow'
, id701: 'Dunst' // 'Mist'
, id711: 'Rauch' // 'Smoke'
, id721: 'Eingetrübt' // 'Haze'
, id731: 'Sand-/Staubwirbel' // 'Sand/Dust Whirls'
, id741: 'Nebel' // 'Fog'
, id751: 'Sand' // 'Sand'
, id800: 'Wolkenlos' // 'Sky is Clear'
, id800d: 'Sonnig' // 'Sky is Clear' at day
, id800n: 'Klar' // 'Sky is Clear' at night
, id801: 'Leicht bewölkt' // 'Few Clouds'
, id802: 'Wolkig' // 'Scattered Clouds'
, id803: 'Stark bewölkt' // 'Broken Clouds'
, id804: 'Bedeckt' // 'Overcast Clouds'
, id900: 'Tornado' // 'Tornado'
, id901: 'Tropischer Sturm' // 'Tropical Storm'
, id902: 'Orkan' // 'Hurricane'
, id903: 'Kälte' // 'Cold'
, id904: 'Hitze' // 'Hot'
, id905: 'Windig' // 'Windy'
, id906: 'Hagel' // 'Hail'
},
ru: {
owmlinktitle: 'Информация в OpenWeatherMap'
, temperature: 'Температура'
, temp_minmax: 'Макс./Мин. темп'
, wind: 'Ветер'
, gust: 'Порывы'
, windforce: 'Сила'
, direction: 'направление'
, rain_1h: 'Дождь'
, humidity: 'Влажность'
, pressure: 'Давление'
// weather conditions, see http://openweathermap.org/wiki/API/Weather_Condition_Codes
// , id200: 'Thunderstorm with Light Rain'
// , id201: 'Thunderstorm with Rain'
// , id202: 'Thunderstorm with Heavy Rain'
// , id210: 'Light Thunderstorm'
// , id211: 'Thunderstorm'
// , id212: 'Heavy Thunderstorm'
// , id221: 'Ragged Thunderstorm'
// , id230: 'Thunderstorm with Light Drizzle'
// , id231: 'Thunderstorm with Drizzle'
// , id232: 'Thunderstorm with Heavy Drizzle'
// , id300: 'Light Intensity Drizzle'
, id301: 'Морось' // 'Drizzle'
// , id302: 'Heavy Intensity Drizzle'
// , id310: 'Light Intensity Drizzle Rain'
// , id311: 'Drizzle Rain'
// , id312: 'Heavy Intensity Drizzle Rain'
// , id321: 'Shower Drizzle'
, id500: 'Небольшой дождь' //'Light Rain'
, id501: 'Дождь' // 'Moderate Rain'
, id502: 'Сильный дождь' //'Heavy Intensity Rain'
, id503: 'Очень сильный дождь' //'Very Heavy Rain'
, id504: 'Сильный ливень' // 'Extreme Rain'