77 lines
1.8 KiB
JavaScript
77 lines
1.8 KiB
JavaScript
goog.require('ol.Collection');
|
|
goog.require('ol.Map');
|
|
goog.require('ol.RendererHint');
|
|
goog.require('ol.View2D');
|
|
goog.require('ol.layer.TileLayer');
|
|
goog.require('ol.layer.Vector');
|
|
goog.require('ol.parser.GeoJSON');
|
|
goog.require('ol.projection');
|
|
goog.require('ol.source.MapQuestOpenAerial');
|
|
goog.require('ol.source.Vector');
|
|
goog.require('ol.style.Polygon');
|
|
goog.require('ol.style.Rule');
|
|
goog.require('ol.style.Style');
|
|
|
|
|
|
var raster = new ol.layer.TileLayer({
|
|
source: new ol.source.MapQuestOpenAerial()
|
|
});
|
|
|
|
var vector = new ol.layer.Vector({
|
|
source: new ol.source.Vector({
|
|
projection: ol.projection.get('EPSG:4326')
|
|
}),
|
|
style: new ol.style.Style({rules: [
|
|
new ol.style.Rule({
|
|
symbolizers: [
|
|
new ol.style.Polygon({
|
|
strokeColor: '#bada55'
|
|
})
|
|
]
|
|
})
|
|
]})
|
|
});
|
|
|
|
var map = new ol.Map({
|
|
layers: new ol.Collection([raster, vector]),
|
|
renderer: ol.RendererHint.CANVAS,
|
|
target: 'map',
|
|
view: new ol.View2D({
|
|
center: [0, 0],
|
|
zoom: 1
|
|
})
|
|
});
|
|
|
|
map.on('mousemove', function(evt) {
|
|
map.getFeatureInfo({
|
|
pixel: evt.getPixel(),
|
|
layers: [vector],
|
|
success: function(features) {
|
|
var info = [];
|
|
for (var i = 0, ii = features.length; i < ii; ++i) {
|
|
info.push(features[i].get('name'));
|
|
}
|
|
document.getElementById('info').innerHTML = info.join(', ') || ' ';
|
|
}
|
|
});
|
|
});
|
|
|
|
|
|
var geojson = new ol.parser.GeoJSON();
|
|
var url = 'data/countries.json';
|
|
var xhr = new XMLHttpRequest();
|
|
xhr.open('GET', url, true);
|
|
|
|
|
|
/**
|
|
* onload handler for the XHR request.
|
|
*/
|
|
xhr.onload = function() {
|
|
if (xhr.status == 200) {
|
|
// this is silly to have to tell the layer the destination projection
|
|
var projection = map.getView().getProjection();
|
|
vector.parseFeatures(xhr.responseText, geojson, projection);
|
|
}
|
|
};
|
|
xhr.send();
|