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/*jslint |
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indent: 4 |
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*/ |
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/*global |
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google |
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*/ |
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function tileUrl(template, servers, coord, zoom) { |
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'use strict'; |
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var limit = Math.pow(2, zoom), |
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x = ((coord.x % limit) + limit) % limit, |
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y = coord.y, |
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s = servers[(Math.abs(x + y)) % servers.length]; |
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return template.replace(/%s/, s).replace(/%x/, x).replace(/%y/, y).replace(/%z/, zoom); |
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} |
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function osmProvider(name) { |
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'use strict'; |
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return new google.maps.ImageMapType({ |
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getTileUrl: function (coord, zoom) { |
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return tileUrl("http://%s.tile.openstreetmap.org/%z/%x/%y.png", ["a", "b", "c"], coord, zoom); |
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}, |
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tileSize: new google.maps.Size(256, 256), |
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name: name, |
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alt: "OpenStreetMap", |
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maxZoom: 18 |
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}); |
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} |
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function osmDeProvider(name) { |
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'use strict'; |
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return new google.maps.ImageMapType({ |
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getTileUrl: function (coord, zoom) { |
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return tileUrl("http://%s.tile.openstreetmap.de/tiles/osmde/%z/%x/%y.png", ["a", "b", "c"], coord, zoom); |
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}, |
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tileSize: new google.maps.Size(256, 256), |
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name: name, |
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alt: "OpenStreetMap (german style)", |
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maxZoom: 18 |
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}); |
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} |
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function ocmProvider(name) { |
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'use strict'; |
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return new google.maps.ImageMapType({ |
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getTileUrl: function (coord, zoom) { |
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return tileUrl("http://%s.tile.opencyclemap.org/cycle/%z/%x/%y.png", ["a", "b", "c"], coord, zoom); |
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}, |
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tileSize: new google.maps.Size(256, 256), |
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name: name, |
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alt: "OpenCycleMap", |
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maxZoom: 17 |
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}); |
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} |
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function thunderforestOutdoorsProvider(name) { |
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'use strict'; |
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return new google.maps.ImageMapType({ |
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getTileUrl: function (coord, zoom) { |
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return tileUrl("http://%s.tile.thunderforest.com/outdoors/%z/%x/%y.png", ["a", "b", "c"], coord, zoom); |
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}, |
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tileSize: new google.maps.Size(256, 256), |
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name: name, |
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alt: "Thunderforest Outdoors", |
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maxZoom: 18 |
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}); |
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} |
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function opentopomapProvider(name) { |
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'use strict'; |
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return new google.maps.ImageMapType({ |
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getTileUrl: function (coord, zoom) { |
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return tileUrl("https://%s.tile.opentopomap.org/%z/%x/%y.png", ["a", "b", "c"], coord, zoom); |
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}, |
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tileSize: new google.maps.Size(256, 256), |
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name: name, |
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alt: "OpenTopoMap", |
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maxZoom: 15 |
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}); |
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} |
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