www/plugins/gis/lib/leaflet/plugins/leaflet-providers.js

   1 (function () {
   2         'use strict';
   3
   4         L.TileLayer.Provider = L.TileLayer.extend({
   5                 initialize: function (arg, options) {
   6                         var providers = L.TileLayer.Provider.providers;
   7
   8                         var parts = arg.split('.');
   9
  10                         var providerName = parts[0];
  11                         var variantName = parts[1];
  12
  13                         if (!providers[providerName]) {
  14                                 throw 'No such provider (' + providerName + ')';
  15                         }
  16
  17                         var provider = {
  18                                 url: providers[providerName].url,
  19                                 options: providers[providerName].options
  20                         };
  21
  22                         // overwrite values in provider from variant.
  23                         if (variantName && 'variants' in providers[providerName]) {
  24                                 if (!(variantName in providers[providerName].variants)) {
  25                                         throw 'No such variant of ' + providerName + ' (' + variantName + ')';
  26                                 }
  27                                 var variant = providers[providerName].variants[variantName];
  28                                 var variantOptions;
  29                                 if (typeof variant === 'string') {
  30                                         variantOptions = {
  31                                                 variant: variant
  32                                         };
  33                                 } else {
  34                                         variantOptions = variant.options;
  35                                 }
  36                                 provider = {
  37                                         url: variant.url || provider.url,
  38                                         options: L.Util.extend({}, provider.options, variantOptions)
  39                                 };
  40                         } else if (typeof provider.url === 'function') {
  41                                 provider.url = provider.url(parts.splice(1, parts.length - 1).join('.'));
  42                         }
  43
  44                         var forceHTTP = window.location.protocol === 'file:' || provider.options.forceHTTP;
  45                         if (provider.url.indexOf('//') === 0 && forceHTTP) {
  46                                 provider.url = 'http:' + provider.url;
  47                         }
  48
  49                         // replace attribution placeholders with their values from toplevel provider attribution,
  50                         // recursively
  51                         var attributionReplacer = function (attr) {
  52                                 if (attr.indexOf('{attribution.') === -1) {
  53                                         return attr;
  54                                 }
  55                                 return attr.replace(/\{attribution.(\w*)\}/,
  56                                         function (match, attributionName) {
  57                                                 return attributionReplacer(providers[attributionName].options.attribution);
  58                                         }
  59                                 );
  60                         };
  61                         provider.options.attribution = attributionReplacer(provider.options.attribution);
  62
  63                         // Compute final options combining provider options with any user overrides
  64                         var layerOpts = L.Util.extend({}, provider.options, options);
  65                         L.TileLayer.prototype.initialize.call(this, provider.url, layerOpts);
  66                 }
  67         });
  68
  69         /**
  70          * Definition of providers.
  71          * see http://leafletjs.com/reference.html#tilelayer for options in the options map.
  72          */
  73
  74         L.TileLayer.Provider.providers = {
  75                 OpenStreetMap: {
  76                         url: '//{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
  77                         options: {
  78                                 attribution:
  79                                         '&copy; <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>'
  80                         },
  81                         variants: {
  82                                 Mapnik: {},
  83                                 BlackAndWhite: {
  84                                         url: 'http://{s}.tiles.wmflabs.org/bw-mapnik/{z}/{x}/{y}.png'
  85                                 },
  86                                 DE: {
  87                                         url: 'http://{s}.tile.openstreetmap.de/tiles/osmde/{z}/{x}/{y}.png'
  88                                 },
  89                                 HOT: {
  90                                         url: 'http://{s}.tile.openstreetmap.fr/hot/{z}/{x}/{y}.png',
  91                                         options: {
  92                                                 attribution: '{attribution.OpenStreetMap}, Tiles courtesy of <a href="http://hot.openstreetmap.org/" target="_blank">Humanitarian OpenStreetMap Team</a>'
  93                                         }
  94                                 }
  95                         }
  96                 },
  97                 OpenSeaMap: {
  98                         url: 'http://tiles.openseamap.org/seamark/{z}/{x}/{y}.png',
  99                         options: {
 100                                 attribution: 'Map data: &copy; <a href="http://www.openseamap.org">OpenSeaMap</a> contributors'
 101                         }
 102                 },
 103                 OpenTopoMap: {
 104                         url: '//{s}.tile.opentopomap.org/{z}/{x}/{y}.png',
 105                         options: {
 106                                 maxZoom: 16,
 107                                 attribution: 'Map data: {attribution.OpenStreetMap}, <a href="http://viewfinderpanoramas.org">SRTM</a> | Map style: &copy; <a href="https://opentopomap.org">OpenTopoMap</a> (<a href="https://creativecommons.org/licenses/by-sa/3.0/">CC-BY-SA</a>)'
 108                         }
 109                 },
 110                 Thunderforest: {
 111                         url: '//{s}.tile.thunderforest.com/{variant}/{z}/{x}/{y}.png',
 112                         options: {
 113                                 attribution:
 114                                         '&copy; <a href="http://www.opencyclemap.org">OpenCycleMap</a>, {attribution.OpenStreetMap}',
 115                                 variant: 'cycle'
 116                         },
 117                         variants: {
 118                                 OpenCycleMap: 'cycle',
 119                                 Transport: 'transport',
 120                                 TransportDark: 'transport-dark',
 121                                 Landscape: 'landscape',
 122                                 Outdoors: 'outdoors'
 123                         }
 124                 },
 125                 OpenMapSurfer: {
 126                         url: 'http://openmapsurfer.uni-hd.de/tiles/{variant}/x={x}&y={y}&z={z}',
 127                         options: {
 128                                 minZoom: 0,
 129                                 maxZoom: 20,
 130                                 variant: 'roads',
 131                                 attribution: 'Imagery from <a href="http://giscience.uni-hd.de/">GIScience Research Group @ University of Heidelberg</a> &mdash; Map data {attribution.OpenStreetMap}'
 132                         },
 133                         variants: {
 134                                 Roads: 'roads',
 135                                 AdminBounds: {
 136                                         options: {
 137                                                 variant: 'adminb',
 138                                                 maxZoom: 19
 139                                         }
 140                                 },
 141                                 Grayscale: {
 142                                         options: {
 143                                                 variant: 'roadsg',
 144                                                 maxZoom: 19
 145                                         }
 146                                 }
 147                         }
 148                 },
 149                 Hydda: {
 150                         url: 'http://{s}.tile.openstreetmap.se/hydda/{variant}/{z}/{x}/{y}.png',
 151                         options: {
 152                                 minZoom: 0,
 153                                 maxZoom: 18,
 154                                 variant: 'full',
 155                                 attribution: 'Tiles courtesy of <a href="http://openstreetmap.se/" target="_blank">OpenStreetMap Sweden</a> &mdash; Map data {attribution.OpenStreetMap}'
 156                         },
 157                         variants: {
 158                                 Full: 'full',
 159                                 Base: 'base',
 160                                 RoadsAndLabels: 'roads_and_labels'
 161                         }
 162                 },
 163                 MapQuestOpen: {
 164                         /* Mapquest does support https, but with a different subdomain:
 165                          * https://otile{s}-s.mqcdn.com/tiles/1.0.0/{type}/{z}/{x}/{y}.{ext}
 166                          * which makes implementing protocol relativity impossible.
 167                          */
 168                         url: 'http://otile{s}.mqcdn.com/tiles/1.0.0/{type}/{z}/{x}/{y}.{ext}',
 169                         options: {
 170                                 type: 'map',
 171                                 ext: 'jpg',
 172                                 attribution:
 173                                         'Tiles Courtesy of <a href="http://www.mapquest.com/">MapQuest</a> &mdash; ' +
 174                                         'Map data {attribution.OpenStreetMap}',
 175                                 subdomains: '1234'
 176                         },
 177                         variants: {
 178                                 OSM: {},
 179                                 Aerial: {
 180                                         options: {
 181                                                 type: 'sat',
 182                                                 attribution:
 183                                                         'Tiles Courtesy of <a href="http://www.mapquest.com/">MapQuest</a> &mdash; ' +
 184                                                         'Portions Courtesy NASA/JPL-Caltech and U.S. Depart. of Agriculture, Farm Service Agency'
 185                                         }
 186                                 },
 187                                 HybridOverlay: {
 188                                         options: {
 189                                                 type: 'hyb',
 190                                                 ext: 'png',
 191                                                 opacity: 0.9
 192                                         }
 193                                 }
 194                         }
 195                 },
 196                 MapBox: {
 197                         url: function (id) {
 198                                 return '//{s}.tiles.mapbox.com/v3/' + id + '/{z}/{x}/{y}.png';
 199                         },
 200                         options: {
 201                                 attribution:
 202                                         'Imagery from <a href="http://mapbox.com/about/maps/">MapBox</a> &mdash; ' +
 203                                         'Map data {attribution.OpenStreetMap}',
 204                                 subdomains: 'abcd'
 205                         }
 206                 },
 207                 Stamen: {
 208                         url: 'http://{s}.tile.stamen.com/{variant}/{z}/{x}/{y}.{ext}',
 209                         options: {
 210                                 attribution:
 211                                         'Map tiles by <a href="http://stamen.com">Stamen Design</a>, ' +
 212                                         '<a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a> &mdash; ' +
 213                                         'Map data {attribution.OpenStreetMap}',
 214                                 subdomains: 'abcd',
 215                                 minZoom: 0,
 216                                 maxZoom: 20,
 217                                 variant: 'toner',
 218                                 ext: 'png'
 219                         },
 220                         variants: {
 221                                 Toner: 'toner',
 222                                 TonerBackground: 'toner-background',
 223                                 TonerHybrid: 'toner-hybrid',
 224                                 TonerLines: 'toner-lines',
 225                                 TonerLabels: 'toner-labels',
 226                                 TonerLite: 'toner-lite',
 227                                 Watercolor: {
 228                                         options: {
 229                                                 variant: 'watercolor',
 230                                                 minZoom: 1,
 231                                                 maxZoom: 16
 232                                         }
 233                                 },
 234                                 Terrain: {
 235                                         options: {
 236                                                 variant: 'terrain',
 237                                                 minZoom: 4,
 238                                                 maxZoom: 18,
 239                                                 bounds: [[22, -132], [70, -56]]
 240                                         }
 241                                 },
 242                                 TerrainBackground: {
 243                                         options: {
 244                                                 variant: 'terrain-background',
 245                                                 minZoom: 4,
 246                                                 maxZoom: 18,
 247                                                 bounds: [[22, -132], [70, -56]]
 248                                         }
 249                                 },
 250                                 TopOSMRelief: {
 251                                         options: {
 252                                                 variant: 'toposm-color-relief',
 253                                                 ext: 'jpg',
 254                                                 bounds: [[22, -132], [51, -56]]
 255                                         }
 256                                 },
 257                                 TopOSMFeatures: {
 258                                         options: {
 259                                                 variant: 'toposm-features',
 260                                                 bounds: [[22, -132], [51, -56]],
 261                                                 opacity: 0.9
 262                                         }
 263                                 }
 264                         }
 265                 },
 266                 Esri: {
 267                         url: '//server.arcgisonline.com/ArcGIS/rest/services/{variant}/MapServer/tile/{z}/{y}/{x}',
 268                         options: {
 269                                 variant: 'World_Street_Map',
 270                                 attribution: 'Tiles &copy; Esri'
 271                         },
 272                         variants: {
 273                                 WorldStreetMap: {
 274                                         options: {
 275                                                 attribution:
 276                                                         '{attribution.Esri} &mdash; ' +
 277                                                         'Source: Esri, DeLorme, NAVTEQ, USGS, Intermap, iPC, NRCAN, Esri Japan, METI, Esri China (Hong Kong), Esri (Thailand), TomTom, 2012'
 278                                         }
 279                                 },
 280                                 DeLorme: {
 281                                         options: {
 282                                                 variant: 'Specialty/DeLorme_World_Base_Map',
 283                                                 minZoom: 1,
 284                                                 maxZoom: 11,
 285                                                 attribution: '{attribution.Esri} &mdash; Copyright: &copy;2012 DeLorme'
 286                                         }
 287                                 },
 288                                 WorldTopoMap: {
 289                                         options: {
 290                                                 variant: 'World_Topo_Map',
 291                                                 attribution:
 292                                                         '{attribution.Esri} &mdash; ' +
 293                                                         'Esri, DeLorme, NAVTEQ, TomTom, Intermap, iPC, USGS, FAO, NPS, NRCAN, GeoBase, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), and the GIS User Community'
 294                                         }
 295                                 },
 296                                 WorldImagery: {
 297                                         options: {
 298                                                 variant: 'World_Imagery',
 299                                                 attribution:
 300                                                         '{attribution.Esri} &mdash; ' +
 301                                                         'Source: Esri, i-cubed, USDA, USGS, AEX, GeoEye, Getmapping, Aerogrid, IGN, IGP, UPR-EGP, and the GIS User Community'
 302                                         }
 303                                 },
 304                                 WorldTerrain: {
 305                                         options: {
 306                                                 variant: 'World_Terrain_Base',
 307                                                 maxZoom: 13,
 308                                                 attribution:
 309                                                         '{attribution.Esri} &mdash; ' +
 310                                                         'Source: USGS, Esri, TANA, DeLorme, and NPS'
 311                                         }
 312                                 },
 313                                 WorldShadedRelief: {
 314                                         options: {
 315                                                 variant: 'World_Shaded_Relief',
 316                                                 maxZoom: 13,
 317                                                 attribution: '{attribution.Esri} &mdash; Source: Esri'
 318                                         }
 319                                 },
 320                                 WorldPhysical: {
 321                                         options: {
 322                                                 variant: 'World_Physical_Map',
 323                                                 maxZoom: 8,
 324                                                 attribution: '{attribution.Esri} &mdash; Source: US National Park Service'
 325                                         }
 326                                 },
 327                                 OceanBasemap: {
 328                                         options: {
 329                                                 variant: 'Ocean_Basemap',
 330                                                 maxZoom: 13,
 331                                                 attribution: '{attribution.Esri} &mdash; Sources: GEBCO, NOAA, CHS, OSU, UNH, CSUMB, National Geographic, DeLorme, NAVTEQ, and Esri'
 332                                         }
 333                                 },
 334                                 NatGeoWorldMap: {
 335                                         options: {
 336                                                 variant: 'NatGeo_World_Map',
 337                                                 maxZoom: 16,
 338                                                 attribution: '{attribution.Esri} &mdash; National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, iPC'
 339                                         }
 340                                 },
 341                                 WorldGrayCanvas: {
 342                                         options: {
 343                                                 variant: 'Canvas/World_Light_Gray_Base',
 344                                                 maxZoom: 16,
 345                                                 attribution: '{attribution.Esri} &mdash; Esri, DeLorme, NAVTEQ'
 346                                         }
 347                                 }
 348                         }
 349                 },
 350                 OpenWeatherMap: {
 351                         url: 'http://{s}.tile.openweathermap.org/map/{variant}/{z}/{x}/{y}.png',
 352                         options: {
 353                                 attribution: 'Map data &copy; <a href="http://openweathermap.org">OpenWeatherMap</a>',
 354                                 opacity: 0.5
 355                         },
 356                         variants: {
 357                                 Clouds: 'clouds',
 358                                 CloudsClassic: 'clouds_cls',
 359                                 Precipitation: 'precipitation',
 360                                 PrecipitationClassic: 'precipitation_cls',
 361                                 Rain: 'rain',
 362                                 RainClassic: 'rain_cls',
 363                                 Pressure: 'pressure',
 364                                 PressureContour: 'pressure_cntr',
 365                                 Wind: 'wind',
 366                                 Temperature: 'temp',
 367                                 Snow: 'snow'
 368                         }
 369                 },
 370                 HERE: {
 371                         /*
 372                          * HERE maps, formerly Nokia maps.
 373                          * These basemaps are free, but you need an API key. Please sign up at
 374                          * http://developer.here.com/getting-started
 375                          *
 376                          * Note that the base urls contain '.cit' whichs is HERE's
 377                          * 'Customer Integration Testing' environment. Please remove for production
 378                          * envirionments.
 379                          */
 380                         url:
 381                                 '//{s}.{base}.maps.cit.api.here.com/maptile/2.1/' +
 382                                 'maptile/{mapID}/{variant}/{z}/{x}/{y}/256/png8?' +
 383                                 'app_id={app_id}&app_code={app_code}',
 384                         options: {
 385                                 attribution:
 386                                         'Map &copy; 1987-2014 <a href="http://developer.here.com">HERE</a>',
 387                                 subdomains: '1234',
 388                                 mapID: 'newest',
 389                                 'app_id': '<insert your app_id here>',
 390                                 'app_code': '<insert your app_code here>',
 391                                 base: 'base',
 392                                 variant: 'normal.day',
 393                                 minZoom: 0,
 394                                 maxZoom: 20
 395                         },
 396                         variants: {
 397                                 normalDay: 'normal.day',
 398                                 normalDayCustom: 'normal.day.custom',
 399                                 normalDayGrey: 'normal.day.grey',
 400                                 normalDayMobile: 'normal.day.mobile',
 401                                 normalDayGreyMobile: 'normal.day.grey.mobile',
 402                                 normalDayTransit: 'normal.day.transit',
 403                                 normalDayTransitMobile: 'normal.day.transit.mobile',
 404                                 normalNight: 'normal.night',
 405                                 normalNightMobile: 'normal.night.mobile',
 406                                 normalNightGrey: 'normal.night.grey',
 407                                 normalNightGreyMobile: 'normal.night.grey.mobile',
 408
 409                                 carnavDayGrey: 'carnav.day.grey',
 410                                 hybridDay: {
 411                                         options: {
 412                                                 base: 'aerial',
 413                                                 variant: 'hybrid.day'
 414                                         }
 415                                 },
 416                                 hybridDayMobile: {
 417                                         options: {
 418                                                 base: 'aerial',
 419                                                 variant: 'hybrid.day.mobile'
 420                                         }
 421                                 },
 422                                 pedestrianDay: 'pedestrian.day',
 423                                 pedestrianNight: 'pedestrian.night',
 424                                 satelliteDay: {
 425                                         options: {
 426                                                 base: 'aerial',
 427                                                 variant: 'satellite.day'
 428                                         }
 429                                 },
 430                                 terrainDay: {
 431                                         options: {
 432                                                 base: 'aerial',
 433                                                 variant: 'terrain.day'
 434                                         }
 435                                 },
 436                                 terrainDayMobile: {
 437                                         options: {
 438                                                 base: 'aerial',
 439                                                 variant: 'terrain.day.mobile'
 440                                         }
 441                                 }
 442                         }
 443                 },
 444                 Acetate: {
 445                         url: 'http://a{s}.acetate.geoiq.com/tiles/{variant}/{z}/{x}/{y}.png',
 446                         options: {
 447                                 attribution:
 448                                         '&copy;2012 Esri & Stamen, Data from OSM and Natural Earth',
 449                                 subdomains: '0123',
 450                                 minZoom: 2,
 451                                 maxZoom: 18,
 452                                 variant: 'acetate-base'
 453                         },
 454                         variants: {
 455                                 basemap: 'acetate-base',
 456                                 terrain: 'terrain',
 457                                 all: 'acetate-hillshading',
 458                                 foreground: 'acetate-fg',
 459                                 roads: 'acetate-roads',
 460                                 labels: 'acetate-labels',
 461                                 hillshading: 'hillshading'
 462                         }
 463                 },
 464                 FreeMapSK: {
 465                         url: 'http://{s}.freemap.sk/T/{z}/{x}/{y}.jpeg',
 466                         options: {
 467                                 minZoom: 8,
 468                                 maxZoom: 16,
 469                                 subdomains: ['t1', 't2', 't3', 't4'],
 470                                 attribution:
 471                                         '{attribution.OpenStreetMap}, vizualization CC-By-SA 2.0 <a href="http://freemap.sk">Freemap.sk</a>'
 472                         }
 473                 },
 474                 MtbMap: {
 475                         url: 'http://tile.mtbmap.cz/mtbmap_tiles/{z}/{x}/{y}.png',
 476                         options: {
 477                                 attribution:
 478                                         '{attribution.OpenStreetMap} &amp; USGS'
 479                         }
 480                 },
 481                 CartoDB: {
 482                         url: 'http://{s}.basemaps.cartocdn.com/{variant}/{z}/{x}/{y}.png',
 483                         options: {
 484                                 attribution: '{attribution.OpenStreetMap} &copy; <a href="http://cartodb.com/attributions">CartoDB</a>',
 485                                 subdomains: 'abcd',
 486                                 minZoom: 0,
 487                                 maxZoom: 18,
 488                                 variant: 'light_all'
 489                         },
 490                         variants: {
 491                                 Positron: 'light_all',
 492                                 PositronNoLabels: 'light_nolabels',
 493                                 DarkMatter: 'dark_all',
 494                                 DarkMatterNoLabels: 'dark_nolabels'
 495                         }
 496                 },
 497                 HikeBike: {
 498                         url: 'http://{s}.tiles.wmflabs.org/hikebike/{z}/{x}/{y}.png',
 499                         options: {
 500                                 attribution: '{attribution.OpenStreetMap}'
 501                         }
 502                 },
 503                 BasemapAT: {
 504                         url: '//maps{s}.wien.gv.at/basemap/{variant}/normal/google3857/{z}/{y}/{x}.{format}',
 505                         options: {
 506                                 attribution: 'Datenquelle: <a href="www.basemap.at">basemap.at</a>',
 507                                 subdomains: ['', '1', '2', '3', '4'],
 508                                 bounds: [[46.358770, 8.782379], [49.037872, 17.189532]]
 509                         },
 510                         variants: {
 511                                 basemap: {
 512                                         options: {
 513                                                 variant: 'geolandbasemap',
 514                                                 format: 'jpeg'
 515                                         }
 516                                 },
 517                                 highdpi: {
 518                                         options: {
 519                                                 variant: 'bmaphidpi',
 520                                                 format: 'jpeg'
 521                                         }
 522                                 },
 523                                 grau: {
 524                                         options: {
 525                                                 variant: 'bmapgrau',
 526                                                 format: 'png'
 527                                         }
 528                                 },
 529                                 overlay: {
 530                                         options: {
 531                                                 variant: 'bmapoverlay',
 532                                                 format: 'png'
 533                                         }
 534                                 },
 535                                 orthofoto: {
 536                                         options: {
 537                                                 variant: 'bmaporthofoto30cm',
 538                                                 format: 'jpeg'
 539                                         }
 540                                 }
 541                         }
 542                 },
 543                 NASAGIBS: {
 544                         url: '//map1.vis.earthdata.nasa.gov/wmts-webmerc/{variant}/default/{time}/{tilematrixset}{maxZoom}/{z}/{y}/{x}.{format}',
 545                         options: {
 546                                 attribution:
 547                                         'Imagery provided by services from the Global Imagery Browse Services (GIBS), operated by the NASA/GSFC/Earth Science Data and Information System ' +
 548                                         '(<a href="https://earthdata.nasa.gov">ESDIS</a>) with funding provided by NASA/HQ.',
 549                                 bounds: [[-85.0511287776, -179.999999975], [85.0511287776, 179.999999975]],
 550                                 minZoom: 1,
 551                                 maxZoom: 9,
 552                                 format: 'jpg',
 553                                 time: '',
 554                                 tilematrixset: 'GoogleMapsCompatible_Level'
 555                         },
 556                         variants: {
 557                                 ModisTerraTrueColorCR: 'MODIS_Terra_CorrectedReflectance_TrueColor',
 558                                 ModisTerraBands367CR: 'MODIS_Terra_CorrectedReflectance_Bands367',
 559                                 ViirsEarthAtNight2012: {
 560                                         options: {
 561                                                 variant: 'VIIRS_CityLights_2012',
 562                                                 maxZoom: 8
 563                                         }
 564                                 },
 565                                 ModisTerraLSTDay: {
 566                                         options: {
 567                                                 variant: 'MODIS_Terra_Land_Surface_Temp_Day',
 568                                                 format: 'png',
 569                                                 maxZoom: 7,
 570                                                 opacity: 0.75
 571                                         }
 572                                 },
 573                                 ModisTerraSnowCover: {
 574                                         options: {
 575                                                 variant: 'MODIS_Terra_Snow_Cover',
 576                                                 format: 'png',
 577                                                 maxZoom: 8,
 578                                                 opacity: 0.75
 579                                         }
 580                                 },
 581                                 ModisTerraAOD: {
 582                                         options: {
 583                                                 variant: 'MODIS_Terra_Aerosol',
 584                                                 format: 'png',
 585                                                 maxZoom: 6,
 586                                                 opacity: 0.75
 587                                         }
 588                                 },
 589                                 ModisTerraChlorophyll: {
 590                                         options: {
 591                                                 variant: 'MODIS_Terra_Chlorophyll_A',
 592                                                 format: 'png',
 593                                                 maxZoom: 7,
 594                                                 opacity: 0.75
 595                                         }
 596                                 }
 597                         }
 598                 }
 599         };
 600
 601         L.tileLayer.provider = function (provider, options) {
 602                 return new L.TileLayer.Provider(provider, options);
 603         };
 604 }());