如何在openlayers-3中添加Google basemaps?
在openlayers-2中,我们可以添加google基本地图(卫星、物理、混合等)。我需要在openlayer-3中添加google basemaps。如何添加谷歌基本地图 openlayers-3中的代码如何在openlayers-3中添加Google basemaps?,openlayers,openlayers-3,Openlayers,Openlayers 3,在openlayers-2中,我们可以添加google基本地图(卫星、物理、混合等)。我需要在openlayer-3中添加google basemaps。如何添加谷歌基本地图 openlayers-3中的代码 map = new ol.Map({ layers: [ new ol.layer.Group({ layers: [ new ol.layer.Tile({ sourc
map = new ol.Map({
layers: [
new ol.layer.Group({
layers: [
new ol.layer.Tile({
source: null,
visible:false
}),
new ol.layer.Tile({
source: new ol.source.MapQuest({layer: 'sat'})
}),
new ol.layer.Tile({
source: new ol.source.OSM(),
visible:false
})
]})
],
target: 'map',
view: new ol.View({
center:[28.566667, 4.01666699999998],
zoom:7
}),
controls: ol.control.defaults({
attribution:false
}).extend([
scaleLineControl
]),
});
lyr=new ol.layer.Tile({ source: new ol.source.TileWMS({
url: 'http://localhost:8080/geoserver/wms',
params: {'LAYERS': 'test:test', 'TILED': true},
serverType: 'geoserver'
})
});
map.addLayer(lyr);
我需要google basemaps,而不是osm和mapquest。ol3官方不支持google地图,请参见完全可以这样做,即使它不受支持 下面是一个例子
请注意:网站中可用的详细程度与他们的网站中可用的详细程度不一致。他们似乎在面向客户的地图中使用了一些额外的google earth详细信息。这是一个可行的解决方案,类似于OGC:WMS,但使用google静态API:
var gridSize=512;
getMaxExtent:function(srs){
var proj= srs? srs : this.getMainProjection();
var geoExtent= [-180, -85, 180, 85];
return this.transformExtent(geoExtent, 'EPSG:4326', proj);
},
transform:function(coordinate, srsOrig, srsDest){
var projOrig= srsOrig? srsOrig : 'EPSG:4326';
var projDest= srsDest? srsDest : this.getMainProjection();
return ol.proj.transform(coordinate, projOrig, projDest);
},
getResolutions:function(srs){
var proj= srs? srs : typterra.serviceHandler.getApplicationTools('ProjectionTools').getMainProjection();
var defaultTileGrid= ol.proj.get(proj).getDefaultTileGrid();
if(defaultTileGrid) return defaultTileGrid.getResolutions();
else return ol.tilegrid.createForProjection(proj).getResolutions();
},
var layer= new ol.layer.Tile({
source: new ol.source.TileImage({
attributions:[
new ol.Attribution({html:'© Google'}),
new ol.Attribution({html:'Terms of Use.'})
];
tileGrid: new ol.tilegrid.TileGrid({
extent:getMaxExtent(),
resolutions:getResolutions(),
tileSize:[gridSize, gridSize]
}),
tileUrlFunction:function(tileCoord, pixelRatio, projection){
var zoom= tileCoord[0];
var tileGrid = this.getTileGrid();
var center=tileGrid.getTileCoordCenter(tileCoord);
var lat,long;
center= transform(center, projection, 'EPSG:4326');
long= new Number(center[0]).toFixed(6);
lat= new Number(center[1]).toFixed(6);
return 'http://maps.googleapis.com/maps/api/staticmap?'+
'key=yourApiKeyHere&'+
'maptype='+model.get('name')+'&'+
'size='+gridSize+'x'+gridSize+'&'+
'zoom='+zoom+'&'+
'center='+lat+','+long
;
}
})
});
请使用ol3谷歌地图库在Openlayers3网站URL中集成谷歌地图: 下面是示例代码。更多详情请参考上述网站
// Create a Google Maps layer
var googleLayer = new olgm.layer.Google();
// Create a regular OL3 map, containing our Google layer
var map = new ol.Map({
// use OL3-Google-Maps recommended default interactions
interactions: olgm.interaction.defaults(),
layers: [
googleLayer
],
target: 'map',
view: new ol.View({
center: center,
zoom: 12
})
});
// Activate the library
var olGM = new olgm.OLGoogleMaps({map: map});
olGM.activate();
我正在坐标系WGS84.PseudoMercator EPSG:3857中使用带有OpenLayers v3.17.1的Google地图静态地图API 以下是我的代码:
var gridSize=512;
//Google Terrain
var gterrain = new ol.layer.Tile({
preload: Infinity,
source: new ol.source.TileImage({
attributions: [
new ol.Attribution({
html: '<a href="https://www.google.com/intl/en-GB_US/help/terms_maps.html">Google Map</a>'
}),
ol.source.OSM.ATTRIBUTION
],
tileGrid: new ol.tilegrid.TileGrid({
extent:[
-13860793.173271,
6329131.950797,
-13845619.906785,
6337107.916410
],
resolutions:[156543.03390625, 78271.516953125, 39135.7584765625,
19567.87923828125, 9783.939619140625, 4891.9698095703125,
2445.9849047851562, 1222.9924523925781, 611.4962261962891,
305.74811309814453, 152.87405654907226, 76.43702827453613,
38.218514137268066, 19.109257068634033, 9.554628534317017,
4.777314267158508, 2.388657133579254, 1.194328566789627,
0.5971642833948135, 0.2986, 0.1493],
tileSize:[gridSize, gridSize]
}),
tileUrlFunction:function(tileCoord, pixelRatio, projection){
var zoom = tileCoord[0];
var tileGrid = this.getTileGrid();
var center = ol.proj.transform(ol.extent.getCenter(tileGrid.getTileCoordExtent(tileCoord)),"EPSG:3857", "EPSG:4326");
//console.log(center[0]);
//console.log(center[1]);
return 'http://maps.googleapis.com/maps/api/staticmap?'+
'key=YOUR_KEY&'+
'maptype=terrain&'+
'size='+gridSize+'x'+gridSize+'&'+
'zoom='+zoom+'&'+
'center='+center[1]+','+center[0]
;
},
maxZoom: 21
}),
visible: false,
name: 'Google Terrain'
});
var gridSize=512;
//谷歌地形
var gterrain=新ol.layer.Tile({
预加载:无限,
来源:新ol.source.TileImage({
归因:[
新ol.归属({
html:'
}),
ol.source.OSM.attribute
],
tileGrid:新的ol.tileGrid.tileGrid({
范围:[
-13860793.173271,
6329131.950797,
-13845619.906785,
6337107.916410
],
决议:[156543.03390625、78271.516953125、39135.7584765625、,
19567.87923828125, 9783.939619140625, 4891.9698095703125,
2445.9849047851562, 1222.9924523925781, 611.4962261962891,
305.74811309814453, 152.87405654907226, 76.43702827453613,
38.218514137268066, 19.109257068634033, 9.554628534317017,
4.777314267158508, 2.388657133579254, 1.194328566789627,
0.5971642833948135, 0.2986, 0.1493],
tileSize:[gridSize,gridSize]
}),
tileUrlFunction:函数(TileCord、像素比率、投影){
var zoom=tileCoord[0];
var tileGrid=this.getTileGrid();
var center=ol.proj.transform(ol.extent.getCenter(tileGrid.getTileCoordExtent(tilecord)),“EPSG:3857”,“EPSG:4326”);
//console.log(中心[0]);
//控制台日志(中心[1]);
返回'http://maps.googleapis.com/maps/api/staticmap?'+
'键=您的_键&'+
'地图类型=地形&'+
'size='+gridSize+'x'+gridSize+'&'+
'缩放='+缩放+'&'+
'中心='+中心[1]+','+中心[0]
;
},
最大缩放:21
}),
可见:假,
名称:“谷歌地形”
});
官方不支持,但您可以使用技巧。请。示例链接不再有效。
new ol.layer.Tile({source: new ol.source.TileImage({ url: 'http://khm{0-3}.googleapis.com/kh?v=742&hl=pl&&x={x}&y={y}&z={z}' })})