OpenLayers多源数据加载
一、实验内容
栅格瓦片数据加载；
矢量数据加载；
矢量瓦片数据加载。
二、实验步骤
2.1 加载已经封装的在线瓦片地图
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="./v6.5.0-dist/ol.css">
<script src="./v6.5.0-dist/ol.js"></script>
<style>
#mymap {
width:
100%;
height: 99%;
position: absolute;
}
#menu {
position: absolute;
top: 30px;
right: 20px;
z-index: 11;
}
#layer-select {
background-color: rgba(0, 60, 136, .5);
display: block;
margin: 1px;
padding: 0;
color: #fff;
font-size: 1. 14em;
text-decoration: none;
text-align: center;
height: 2. 375em;
width: 8. 375em;
line-height: .4em;
border: none;
border-radius: 0 0 2px 2px;
}
</style>
</head>
<body>
<div id="mymap">
<div id="menu">
<select id="layer-select">
<option value="Aerial">Aerial</option>
<option value="AerialWithLabelsOnDemand">Aerial with labels</option>
<option value="RoadOnDemand" selected>Road</option>
<option value="CanvasDark">Road dark</option>
</select>
</div>
</div>
<script type="text/javascript">
var styles = ['RoadOnDemand', 'Aerial',
'AerialWithLabelsOnDemand', 'CanvasDark'];
var layers = [];
var i, ii;
for (i = 0, ii = styles.length; i < ii; ++i) {
layers.push(
new ol.layer.Tile({
visible: false,
source: new ol.source.BingMaps({
key: "ApTJzdkyN1DdFKkRAE6QIDtzihNaf6IWJsT-nQ_2eMoO4PN__0Tzhl2-WgJtXFSp",
imagerySet: styles[i],
}),
})
);
}
var map = new ol.Map({
target: 'mymap',
layers: layers,
view: new ol.View({
center: [0, 0],
zoom: 2,
projection: "EPSG:4326"
})
});
var select = document.getElementById('layer-select');
function onChange() {
var style = select.value;
for (var i = 0, ii = layers.length; i < ii; ++i) {
layers[i].setVisible(styles[i] === style);
}
}
select.addEventListener('change', onChange);
onChange();
</script>
</body>
</html>
2.2 利用XYZ加载OSM数据
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="./v6.5.0-dist/ol.css">
<script src="./v6.5.0-dist/ol.js"></script>
<style>
#mymap {
width:
100%;
height: 99%;
position: absolute;
}
</style>
</head>
<body>
<body>
<div id="mymap"></div>
<script>
var openStreetMapLayer = new ol.layer.Tile({
source: new ol.source.XYZ({
url: 'http://{a-c}.tile.openstreetmap.org/{z}/{x}/{y}.png'
})
});
var map = new ol.Map({
layers: [
openStreetMapLayer
],
view: new ol.View({
center: [12570904.1896, 3269680.4449],
projection: 'EPSG:3857',
zoom: 10
}),
target: 'mymap'
});
</script>
</body>
</html>
2.3 利用XYZ加载百度地图
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="./v6.5.0-dist/ol.css">
<script src="./v6.5.0-dist/ol.js"></script>
<style>
#mymap {
width:
100%;
height: 99%;
position: absolute;
}
</style>
</head>
<body>
<body>
<div id="mymap"></div>
<script type="text/javascript">
//坐标参考系
var projection = ol.proj.get("EPSG:3857");
//分辨率
var resolutions = [];
for (var i = 0; i < 19; i++) {
resolutions[i] = Math.pow(2, 18 - i);
}
var tilegrid = new ol.tilegrid.TileGrid({
origin: [0, 0],
resolutions: resolutions
});
var urlTemplate = "http://online2.map.bdimg.com/tile/?qt=tile&x=" + "{x}"
+ "&y=" + "{y}" + "&z=" + '{z}' + "&styles=pl&udt=20141219&scaler=1"
//拼接白度地图地址
var baidu_source = new ol.source.TileImage({
//设置坐标参考系
projection: projection,
//设置分辨率
tileGrid: tilegrid,
//出图基地址
tileUrlFunction: function (tileCoord, pixelRatio, proj) {
if (!tileCoord) {
return "";
}
var z = tileCoord[0];
var x = tileCoord[1];
var y = -tileCoord[2] - 1;
if (x < 0) {
x = "M" + (-x);
}
if (y < 0) {
y = "M" + (-y);
}
return urlTemplate.replace('{z}', z.toString())
.replace('{y}', y.toString())
.replace('{x}', x.toString());
}
});
//百度地图
var baidu_layer = new
ol.layer.Tile({
source: baidu_source
});
//地图容器
var map = new
ol.Map({
target: 'mymap',
layers: [baidu_layer],
view: new ol.View({
center: [0, 0],
zoom: 2
})
});
</script>
</body>
</html>
2.4 利用XYZ加载天地图
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="./v6.5.0-dist/ol.css">
<script src="./v6.5.0-dist/ol.js"></script>
<style>
#mymap {
width:
100%;
height: 99%;
position: absolute;
}
#menu {
position: absolute;
top: 30px;
left: 20px;
z-index: 11;
}
</style>
</head>
<body>
<body>
<div id="mymap">
<div id="menu">
<select id="layer-select">
<option value="6" selected>Aerial</option>
<option value="7">VectorMap</option>
<option value="8">Roadwithlable</option>
</select>
</div>
</div>
<script type="text/javascript">
var urls = [
'http://webst0{1-4}.is.autonavi.com/appmaptile?lang=zh_cn&size=1&style=6&x={x}&y={y}&z={z}',
'http://webst0{1-4}.is.autonavi.com/appmaptile?lang=zh_cn&size=1&style=7&x={x}&y={y}&z={z}',
'http://webst0{1-4}.is.autonavi.com/appmaptile?lang=zh_cn&size=1&style=8&x={x}&y={y}&z={z}'
];
var layers = [];
var i, ii;
for (i = 0, ii = urls.length; i < ii; ++i) {
layers.push(
new ol.layer.Tile({
title: "高德地图" + i,
source: new ol.source.XYZ({
url: urls[i],
wrapX: false
})
})
);
}
var map = new ol.Map({
target: 'mymap',
layers: layers,
view: new ol.View({
center: [12570904.1896, 3269680.4449],
zoom: 10,
minZomm: 1,
projection: "EPSG:3857"
})
});
var select = document.getElementById('layer-select');
function onChange() {
var style = select.selectedIndex;
for (var i = 0, ii = layers.length; i < ii; ++i) {
layers[i].setVisible(i === style);
}
}
select.addEventListener('change', onChange);
onChange();
</script>
</body>
</html>
2.5 加载GeoJSON
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="./v6.5.0-dist/ol.css">
<script src="./v6.5.0-dist/ol.js"></script>
<style>
#mymap {
width:
100%;
height: 99%;
position: absolute;
}
#menu {
position: absolute;
top: 30px;
left: 20px;
z-index: 11;
}
</style>
</head>
<body>
<body>
<div id="mymap"></div>
<script type="text/javascript">
var style = new ol.style.Style({
stroke: new ol.style.Stroke({
color: "green",
width: 3
})
})
var map = new ol.Map({
target: "mymap",
layers: [
new ol.layer.Tile({
source: new ol.source.OSM()
})
],
view: new ol.View({
projection: "EPSG:4326",
center: [0, 0],
zoom: 2
})
})
var vectorSource = new ol.source.Vector({
url: "./data/data/geojson/buildings.geojson",
format: new ol.format.GeoJSON()
})
var vectorLayer = new ol.layer.Vector({
style: style,
source: vectorSource
})
map.addLayer(vectorLayer)
</script>
</body>
</html>
2.6 加载TopoJSON
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="./v6.5.0-dist/ol.css">
<script src="./v6.5.0-dist/ol.js"></script>
<style>
#mymap {
width:
100%;
height: 99%;
position: absolute;
}
#menu {
position: absolute;
top: 30px;
left: 20px;
z-index: 11;
}
</style>
</head>
<body>
<body>
<div id="mymap"></div>
<script type="text/javascript">
var style = new ol.style.Style({
stroke: new ol.style.Stroke({
color: "green",
width: 3
})
})
var map = new ol.Map({
target: "mymap",
layers: [
new ol.layer.Tile({
source: new ol.source.OSM()
})
],
view: new ol.View({
projection: "EPSG:4326",
center: [0, 0],
zoom: 2
})
})
var vectorSource = new ol.source.Vector({
url: "./data/data/topojson/ne_10m_us_states.topojson",
format: new ol.format.TopoJSON()
})
var vectorLayer = new ol.layer.Vector({
style: style,
source: vectorSource
})
map.addLayer(vectorLayer)
</script>
</body>
</html>
2.7 加载GPX
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="./v6.5.0-dist/ol.css">
<script src="./v6.5.0-dist/ol.js"></script>
<style>
#mymap {
width:
100%;
height: 99%;
position: absolute;
}
#menu {
position: absolute;
top: 30px;
left: 20px;
z-index: 11;
}
</style>
</head>
<body>
<body>
<div id="mymap"></div>
<script type="text/javascript">
var style = new ol.style.Style({
stroke: new ol.style.Stroke({
color: "green",
width: 3
})
})
var map = new ol.Map({
target: "mymap",
layers: [
new ol.layer.Tile({
source: new ol.source.OSM()
})
],
view: new ol.View({
projection: "EPSG:4326",
center: [14.357652292, 45.772163216],
zoom: 10
})
})
var vectorSource = new ol.source.Vector({
url: "./data/data/gpx/cerknicko-jezero.gpx",
format: new ol.format.GPX()
})
var vectorLayer = new ol.layer.Vector({
style: style,
source: vectorSource
})
map.addLayer(vectorLayer)
</script>
</body>
</html>
2.8 加载KML
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="./v6.5.0-dist/ol.css">
<script src="./v6.5.0-dist/ol.js"></script>
<style>
#mymap {
width:
100%;
height: 99%;
position: absolute;
}
#menu {
position: absolute;
top: 30px;
left: 20px;
z-index: 11;
}
</style>
</head>
<body>
<body>
<div id="mymap"></div>
<script type="text/javascript">
var style = new ol.style.Style({
stroke: new ol.style.Stroke({
color: "green",
width: 3
})
})
var map = new ol.Map({
target: "mymap",
layers: [
new ol.layer.Tile({
source: new ol.source.OSM()
})
],
view: new ol.View({
projection: "EPSG:4326",
center: [7.5083945,46.4586075],
zoom: 14
})
})
var vectorSource = new ol.source.Vector({
url: "./data/data/kml/2012-02-10.kml",
format: new ol.format.KML()
})
var vectorLayer = new ol.layer.Vector({
style: style,
source: vectorSource
})
map.addLayer(vectorLayer)
</script>
</body>
</html>
2.9 加载GML
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="./v6.5.0-dist/ol.css">
<script src="./v6.5.0-dist/ol.js"></script>
<style>
#mymap {
width:
100%;
height: 99%;
position: absolute;
}
#menu {
position: absolute;
top: 30px;
left: 20px;
z-index: 11;
}
</style>
</head>
<body>
<body>
<div id="mymap"></div>
<script type="text/javascript">
var style = new ol.style.Style({
stroke: new ol.style.Stroke({
color: "green",
width: 3
})
})
var map = new ol.Map({
target: "mymap",
layers: [
new ol.layer.Tile({
source: new ol.source.OSM()
})
],
view: new ol.View({
projection: "EPSG:4326",
center: [-114.50376, 33.826012000000006],
zoom: 14
})
})
var vectorSource = new ol.source.Vector({
url: "./data/data/gml/topp-states-wfs.xml",
format: new ol.format.GML3()
})
var vectorLayer = new ol.layer.Vector({
style: style,
source: vectorSource
})
map.addLayer(vectorLayer)
let mousePosition = new ol.control.MousePosition()
map.addControl(mousePosition)
</script>
</body>
</html>
2.10 矢量数据样式练习一
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="./v6.5.0-dist/ol.css">
<script src="./v6.5.0-dist/ol.js"></script>
<style>
#mymap {
width:
100%;
height: 99%;
position: absolute;
}
#menu {
position: absolute;
top: 30px;
left: 20px;
z-index: 11;
}
</style>
</head>
<body>
<body>
<div id="mymap"></div>
<script type="text/javascript">
var projection = ol.proj.get('EPSG:4326')
var image = new ol.style.Circle({
radius: 5,
fill: null,
stroke: new ol.style.Stroke({
color: 'red',
width: 1
})
})
var styles = {
'Point': [new ol.style.Style({
image: image
})],
'LineString': [new ol.style.Style({
stroke: new ol.style.Stroke({
color: "green",
width: 1
})
})],
'MultiLineString': [new ol.style.Style({
stroke: new ol.style.Stroke({
color: 'green',
width: 1
})
})],
'MultiPoint':[new ol.style.Style({
image:image
})],
'MultiPolygon':[new ol.style.Style({
stroke:new ol.style.Stroke({
color:'yellow',
width:1
}),
fill:new ol.style.Fill({
color:'rgba(255,255,0,0.1)'
})
})],
'Polygon':[new ol.style.Style({
stroke:new ol.style.Stroke({
color:'blue',
lineDash:[4],
width:3
}),
fill:new ol.style.Fill({
color:'rgba(0,0,255,0.1)'
})
})],
'GeometryCollection':[new ol.style.Style({
stroke:new ol.style.Stroke({
color:'magenta',
width:2
}),
fill:new ol.style.Fill({
color:'magenta'
}),
image:new ol.style.Circle({
radius:10,
fill:null,
stroke:new ol.style.Stroke({
color:'magenta'
})
})
})],
'Circle':[new ol.style.Style({
stroke:new ol.style.Stroke({
color:'red',
width:2
}),
fill:new ol.style.Fill({
color:'rgba(255,0,0,0.2)'
})
})]
}
var styleFunction=function (feature,resolution){
return styles[feature.getGeometry().getType()]
}
var map = new ol.Map({
target: "mymap",
layers: [
new ol.layer.Tile({
source: new ol.source.OSM()
})
],
view: new ol.View({
projection: "EPSG:4326",
center: [7.5083945, 46.4586075],
zoom: 8
})
})
var vectorSource = new ol.source.Vector({
url: "./data/data/kml/2012_Earthquakes_Mag5.kml",
format: new ol.format.KML({
extractStyles:false
})
})
var vectorLayer = new ol.layer.Vector({
style: styleFunction,
source: vectorSource
})
map.addLayer(vectorLayer)
let mousePosition = new ol.control.MousePosition()
map.addControl(mousePosition)
</script>
</body>
</html>
2.11 矢量数据样式练习二
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="./v6.5.0-dist/ol.css">
<script src="./v6.5.0-dist/ol.js"></script>
<style>
#mymap {
width:
100%;
height: 99%;
position: absolute;
}
#menu {
position: absolute;
top: 30px;
left: 20px;
z-index: 11;
}
</style>
</head>
<body>
<body>
<div id="mymap"></div>
<script type="text/javascript">
var projection = ol.proj.get('EPSG:4326')
var styleCache = {}
var styleFunction = function (feature, resolution) {
var name = feature.get('name')
var magnitude = parseFloat(name.substr(2))
var radius = 5 + 20 * (magnitude - 5)
var style = styleCache[radius]
console.log(feature)
if (!style) {
style = new ol.style.Style({
image: new ol.style.Circle({
radius: radius,
fill: new ol.style.Fill({
color: 'rgba(255, 153, 0,0.4)',
}),
stroke: new ol.style.Stroke({
color: 'rgba(255, 204, 0,0.2)',
width: 1,
}),
}),
});
styleCache[radius] = style;
}
return style;
}
var map = new ol.Map({
target: "mymap",
layers: [
new ol.layer.Tile({
source: new ol.source.BingMaps({
key: 'ApTJzdkyN1DdFKkRAE6QIDtzihNaf6IWJsT-nQ_2eMoO4PN__0Tzhl2-WgJtXFSp',
imagerySet: 'CanvasDark'
})
})
],
view: new ol.View({
projection: "EPSG:4326",
center: [7.5083945, 46.4586075],
zoom: 2
})
})
var vectorSource = new ol.source.Vector({
url: "./data/data/kml/2012_Earthquakes_Mag5.kml",
format: new ol.format.KML({
extractStyles: false
})
})
var vectorLayer = new ol.layer.Vector({
style: styleFunction,
source: vectorSource
})
map.addLayer(vectorLayer)
let mousePosition = new ol.control.MousePosition()
map.addControl(mousePosition)
</script>
</body>
</html>
2.12 矢量瓦片数据加载
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="./v6.5.0-dist/ol.css">
<script src="./v6.5.0-dist/ol.js"></script>
<style>
#mymap {
width: 100%;
height: 99%;
position: absolute;
}
</style>
</head>
<body>
<body>
<div id="mymap"></div>
<script type="text/javascript">
var map = new ol.Map({
target: "mymap",
layers: [
new ol.layer.Tile({
source: new ol.source.BingMaps({
key: 'ApTJzdkyN1DdFKkRAE6QIDtzihNaf6IWJsT-nQ_2eMoO4PN__0Tzhl2-WgJtXFSp',
imagerySet: 'AerialWithLabelsOnDemand'
})
})
],
view: new ol.View({
center: [0, 0],
zoom: 2
})
})
var tileLayer = new ol.layer.VectorTile({
source: new ol.source.VectorTile({
format: new ol.format.MVT(),
url:
'https://ahocevar.com/geoserver/gwc/service/tms/1.0.0/' +
'ne:ne_10m_admin_0_countries@EPSG%3A900913@pbf/{z}/{x}/{-y}.pbf'
})
})
var wmsLayer = new ol.layer.Image({
source: new ol.source.ImageWMS({
url: 'https://ahocevar.com/geoserver/wms',
params: { 'LAYERS': 'topp:states' },
ratio: 1,
serverType: 'geoserver',
})
});
map.addLayer(wmsLayer)
map.addLayer(tileLayer)
let mousePosition = new ol.control.MousePosition()
map.addControl(mousePosition)
</script>
</body>
</html>
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