Files
iD/data/update_imagery.js

106 lines
2.8 KiB
JavaScript

var fs = require('fs');
var sources = require('editor-imagery-index/imagery.json');
var imagery = [];
var blacklist = {
"TIGER 2012 Roads Overlay": true
};
var whitelist = [{
"name": "Locator Overlay",
"url": "http://{switch:a,b,c}.tiles.mapbox.com/v4/openstreetmap.map-inh76ba2/{zoom}/{x}/{y}.png?access_token=pk.eyJ1Ijoib3BlbnN0cmVldG1hcCIsImEiOiJncjlmd0t3In0.DmZsIeOW-3x-C5eX-wAqTw",
"description": "Shows major features to help orient you.",
"overlay": true,
"default": true,
"extent": { "max_zoom": 16 },
"type": "tms",
"attribution": {
"url": "http://www.mapbox.com/about/maps/",
"text": "Terms & Feedback"
}
},{
"id": "MAPNIK",
"name": "OpenStreetMap (Standard)",
"url": "http://{switch:a,b,c}.tile.openstreetmap.org/{zoom}/{x}/{y}.png",
"description": "The default OpenStreetMap layer.",
"default": true,
"extent": { "max_zoom": 19 },
"type": "tms",
"attribution": {
"url": "http://openstreetmap.org/",
"text": "\u00a9 OpenStreetMap contributors, CC-BY-SA"
}
}];
var descriptions = {
'Mapbox Satellite': 'Satellite and aerial imagery.',
'Bing aerial imagery': 'Satellite and aerial imagery.'
};
sources.concat(whitelist).forEach(function(source) {
if (source.type !== 'tms' && source.type !== 'bing')
return;
if (source.name in blacklist)
return;
var im = {
name: source.name,
type: source.type
};
var description = source.description || descriptions[im.name];
if (description) im.description = description;
im.template = source.url;
var extent = source.extent || {};
if (extent.min_zoom || extent.max_zoom) {
im.scaleExtent = [
extent.min_zoom || 0,
extent.max_zoom || 20
];
}
if (extent.polygon) {
im.polygon = extent.polygon;
} else if (extent.bbox) {
im.polygon = [[
[extent.bbox.min_lon, extent.bbox.min_lat],
[extent.bbox.min_lon, extent.bbox.max_lat],
[extent.bbox.max_lon, extent.bbox.max_lat],
[extent.bbox.max_lon, extent.bbox.min_lat],
[extent.bbox.min_lon, extent.bbox.min_lat]
]];
}
if (source.name == 'Locator Overlay') {
im.overzoom = false;
}
var attribution = source.attribution || {};
if (attribution.url) {
im.terms_url = attribution.url;
}
if (attribution.text) {
im.terms_text = attribution.text;
}
if (attribution.html) {
im.terms_html = attribution.html;
}
['id', 'default', 'overlay', 'best'].forEach(function(a) {
if (source[a]) {
im[a] = source[a];
}
});
imagery.push(im);
});
imagery.sort(function(a, b) {
return a.name.localeCompare(b.name);
});
fs.writeFileSync('data/imagery.json', JSON.stringify(imagery, null, 4));