91 lines
2.5 KiB
JavaScript
91 lines
2.5 KiB
JavaScript
import _ol_Map_ from '../src/ol/Map.js';
|
||
import _ol_View_ from '../src/ol/View.js';
|
||
import TopoJSON from '../src/ol/format/TopoJSON.js';
|
||
import _ol_layer_VectorTile_ from '../src/ol/layer/VectorTile.js';
|
||
import {fromLonLat} from '../src/ol/proj.js';
|
||
import _ol_source_VectorTile_ from '../src/ol/source/VectorTile.js';
|
||
import _ol_style_Fill_ from '../src/ol/style/Fill.js';
|
||
import _ol_style_Stroke_ from '../src/ol/style/Stroke.js';
|
||
import _ol_style_Style_ from '../src/ol/style/Style.js';
|
||
|
||
var key = 'vector-tiles-5eJz6JX';
|
||
|
||
var roadStyleCache = {};
|
||
var roadColor = {
|
||
'major_road': '#776',
|
||
'minor_road': '#ccb',
|
||
'highway': '#f39'
|
||
};
|
||
var buildingStyle = new _ol_style_Style_({
|
||
fill: new _ol_style_Fill_({
|
||
color: '#666',
|
||
opacity: 0.4
|
||
}),
|
||
stroke: new _ol_style_Stroke_({
|
||
color: '#444',
|
||
width: 1
|
||
})
|
||
});
|
||
var waterStyle = new _ol_style_Style_({
|
||
fill: new _ol_style_Fill_({
|
||
color: '#9db9e8'
|
||
})
|
||
});
|
||
var roadStyle = function(feature) {
|
||
var kind = feature.get('kind');
|
||
var railway = feature.get('railway');
|
||
var sort_key = feature.get('sort_key');
|
||
var styleKey = kind + '/' + railway + '/' + sort_key;
|
||
var style = roadStyleCache[styleKey];
|
||
if (!style) {
|
||
var color, width;
|
||
if (railway) {
|
||
color = '#7de';
|
||
width = 1;
|
||
} else {
|
||
color = roadColor[kind];
|
||
width = kind == 'highway' ? 1.5 : 1;
|
||
}
|
||
style = new _ol_style_Style_({
|
||
stroke: new _ol_style_Stroke_({
|
||
color: color,
|
||
width: width
|
||
}),
|
||
zIndex: sort_key
|
||
});
|
||
roadStyleCache[styleKey] = style;
|
||
}
|
||
return style;
|
||
};
|
||
|
||
var map = new _ol_Map_({
|
||
layers: [
|
||
new _ol_layer_VectorTile_({
|
||
source: new _ol_source_VectorTile_({
|
||
attributions: '© OpenStreetMap contributors, Who’s On First, ' +
|
||
'Natural Earth, and openstreetmapdata.com',
|
||
format: new TopoJSON({
|
||
layerName: 'layer',
|
||
layers: ['water', 'roads', 'buildings']
|
||
}),
|
||
maxZoom: 19,
|
||
url: 'https://tile.mapzen.com/mapzen/vector/v1/all/{z}/{x}/{y}.topojson?api_key=' + key
|
||
}),
|
||
style: function(feature, resolution) {
|
||
switch (feature.get('layer')) {
|
||
case 'water': return waterStyle;
|
||
case 'roads': return roadStyle(feature);
|
||
case 'buildings': return (resolution < 10) ? buildingStyle : null;
|
||
default: return null;
|
||
}
|
||
}
|
||
})
|
||
],
|
||
target: 'map',
|
||
view: new _ol_View_({
|
||
center: fromLonLat([-74.0064, 40.7142]),
|
||
maxZoom: 19,
|
||
zoom: 15
|
||
})
|
||
});
|