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Support quartile scheme for any imagery source (fixes #2112)

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This commit is contained in:
John Firebaugh
2014-03-21 17:43:54 -07:00
parent b51e5366cc
commit d6fa8c1e26
1 changed files with 13 additions and 19 deletions
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32
js/id/renderer/background_source.js
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@@ -35,6 +35,17 @@ iD.BackgroundSource = function(data) {
.replace(/\{switch:([^}]+)\}/, function(s, r) {
var subdomains = r.split(',');
return subdomains[(coord[0] + coord[1]) % subdomains.length];
})
.replace('{u}', function() {
var u = '';
for (var zoom = coord[2]; zoom > 0; zoom--) {
var b = 0;
var mask = 1 << (zoom - 1);
if ((coord[0] & mask) !== 0) b++;
if ((coord[1] & mask) !== 0) b += 2;
u += b.toString();
}
return u;
});
};
@@ -63,6 +74,8 @@ iD.BackgroundSource.Bing = function(data, dispatch) {
// http://msdn.microsoft.com/en-us/library/ff701716.aspx
// http://msdn.microsoft.com/en-us/library/ff701701.aspx
data.template = 'https://ecn.t{switch:0,1,2,3}.tiles.virtualearth.net/tiles/a{u}.jpeg?g=587&mkt=en-gb&n=z';
var bing = iD.BackgroundSource(data),
key = 'Arzdiw4nlOJzRwOz__qailc8NiR31Tt51dN2D7cm57NrnceZnCpgOkmJhNpGoppU', // Same as P2 and JOSM
url = 'https://dev.virtualearth.net/REST/v1/Imagery/Metadata/Aerial?include=ImageryProviders&key=' +
@@ -84,25 +97,6 @@ iD.BackgroundSource.Bing = function(data, dispatch) {
dispatch.change();
});
var template = 'https://ecn.t{t}.tiles.virtualearth.net/tiles/a{u}.jpeg?g=587&mkt=en-gb&n=z',
subdomains = [0, 1, 2, 3];
bing.url = function(coord) {
var u = '';
for (var zoom = coord[2]; zoom > 0; zoom--) {
var b = 0;
var mask = 1 << (zoom - 1);
if ((coord[0] & mask) !== 0) b++;
if ((coord[1] & mask) !== 0) b += 2;
u += b.toString();
}
return template
.replace('{t}', subdomains[(coord[0] + coord[1]) % 4])
.replace('{u}', u);
};
bing.copyrightNotices = function(zoom, extent) {
zoom = Math.min(zoom, 21);
return providers.filter(function(provider) {