OpenLayers示例代码：ArcGIS REST要素服务
OpenLayers示例代码：ArcGIS REST要素服务
<!DOCTYPE html>
<html>
<head>
<title>ArcGIS REST Feature Service</title>
<link rel="stylesheet" href="https://openlayers.org/en/v4.0.1/css/ol.css" type="text/css">
<!-- The line below is only needed for old environments like Internet Explorer and Android 4.x -->
<script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList,URL"></script>
<script src="https://openlayers.org/en/v4.0.1/build/ol.js"></script>
<script src="https://code.jquery.com/jquery-2.2.3.min.js"></script>
</head>
<body>
<div id="map" class="map"></div>
<div id="info"> </div>
<script>
var serviceUrl = 'https://sampleserver3.arcgisonline.com/ArcGIS/rest/services/' +
'Petroleum/KSFields/FeatureServer/';
var layer = '0';
var esrijsonFormat = new ol.format.EsriJSON();
var styleCache = {
'ABANDONED': new ol.style.Style({
fill: new ol.style.Fill({
color: 'rgba(225, 225, 225, 255)'
}),
stroke: new ol.style.Stroke({
color: 'rgba(0, 0, 0, 255)',
width: 0.4
})
}),
'GAS': new ol.style.Style({
fill: new ol.style.Fill({
color: 'rgba(255, 0, 0, 255)'
}),
stroke: new ol.style.Stroke({
color: 'rgba(110, 110, 110, 255)',
width: 0.4
})
}),
'OIL': new ol.style.Style({
fill: new ol.style.Fill({
color: 'rgba(56, 168, 0, 255)'
}),
stroke: new ol.style.Stroke({
color: 'rgba(110, 110, 110, 255)',
width: 0
})
}),
'OILGAS': new ol.style.Style({
fill: new ol.style.Fill({
color: 'rgba(168, 112, 0, 255)'
}),
stroke: new ol.style.Stroke({
color: 'rgba(110, 110, 110, 255)',
width: 0.4
})
})
};
var vectorSource = new ol.source.Vector({
loader: function(extent, resolution, projection) {
var url = serviceUrl + layer + '/query/?f=json&' +
'returnGeometry=true&spatialRel=esriSpatialRelIntersects&geometry=' +
encodeURIComponent('{"xmin":' + extent[0] + ',"ymin":' +
extent[1] + ',"xmax":' + extent[2] + ',"ymax":' + extent[3] +
',"spatialReference":{"wkid":102100}}') +
'&geometryType=esriGeometryEnvelope&inSR=102100&outFields=*' +
'&outSR=102100';
$.ajax({url: url, dataType: 'jsonp', success: function(response) {
if (response.error) {
alert(response.error.message + '\n' +
response.error.details.join('\n'));
} else {
// dataProjection will be read from document
var features = esrijsonFormat.readFeatures(response, {
featureProjection: projection
});
if (features.length > 0) {
vectorSource.addFeatures(features);
}
}
}});
},
strategy: ol.loadingstrategy.tile(ol.tilegrid.createXYZ({
tileSize: 512
}))
});
var vector = new ol.layer.Vector({
source: vectorSource,
style: function(feature) {
var classify = feature.get('activeprod');
return styleCache[classify];
}
});
var raster = new ol.layer.Tile({
source: new ol.source.XYZ({
attributions: 'Tiles © <a href="https://services.arcgisonline.com/ArcGIS/' +
'rest/services/World_Topo_Map/MapServer">ArcGIS</a>',
url: 'https://server.arcgisonline.com/ArcGIS/rest/services/' +
'World_Topo_Map/MapServer/tile/{z}/{y}/{x}'
})
});
var map = new ol.Map({
layers: [raster, vector],
target: document.getElementById('map'),
view: new ol.View({
center: ol.proj.transform([-97.6114, 38.8403], 'EPSG:4326', 'EPSG:3857'),
zoom: 7
})
});
var displayFeatureInfo = function(pixel) {
var features = [];
map.forEachFeatureAtPixel(pixel, function(feature) {
features.push(feature);
});
if (features.length > 0) {
var info = [];
var i, ii;
for (i = 0, ii = features.length; i < ii; ++i) {
info.push(features[i].get('field_name'));
}
document.getElementById('info').innerHTML = info.join(', ') || '(unknown)';
map.getTarget().style.cursor = 'pointer';
} else {
document.getElementById('info').innerHTML = ' ';
map.getTarget().style.cursor = '';
}
};
map.on('pointermove', function(evt) {
if (evt.dragging) {
return;
}
var pixel = map.getEventPixel(evt.originalEvent);
displayFeatureInfo(pixel);
});
map.on('click', function(evt) {
displayFeatureInfo(evt.pixel);
});
</script>
</body>
</html>
说明：
OpenLayers示例代码：ArcGIS REST要素服务
