WMS

AMap.TileLayer.WMS

A layer class for loading WMS map services that conform to OGC standards, only supports WMS layers with the EPSG3857 coordinate system

Construct a WMS layer object, set the layer properties through WMSLayerOptions

new AMap.TileLayer.WMS(opts: WMSLayerOptions)

View the OGC standards for WMS

Tutorial

Parameter

opts(WMSLayerOptions): WMS Layer Parameters

Attribute	Type	Description
url	String	The URL address of the WMS service, such as' https://ahocevar.com/geoserver/wms '
blend	Boolean	When switching map levels, whether to blend images of different levels, set to false if the image content of the layer is partially transparent
params	Object	Parameters for the GetMap interface of WMS map services compliant with OGC standards, including VERSION, LAYERS, STYLES, FORMAT, TRANSPARENT, etc. Do not add parameters such as CRS, BBOX, REQUEST, WIDTH, HEIGHT, for example: { LAYERS: 'topp:states', VERSION:'1.3.0', FORMAT:'image/png' }
zooms	[Number, Number]	Supported zoom level range, default range: [2-30]
opacity	Number	Layer opacity, value range [0 ~ 1], 1 means completely opaque, 0 means completely transparent, default: 1
visible	Boolean	Whether to display, default: true
zIndex	Number	The order value of layer overlay, the larger the number, the higher the layer level, with 1 being the bottom layer. Default: 4

Demo

//Creating a standard WMS layer
var wms = new AMap.TileLayer.WMS({
  url: "https://ahocevar.com/geoserver/wms", //URL address of the WMS service
  blend: false, //Whether images of different levels are blended when switching map levels
  tileSize: 512, //Tile size of the images when loading WMS layer services
  params: {
    LAYERS: "topp:states",
    VERSION: "1.3.0",
  }, //Parameters of the GetMap interface for OGC standard WMS map services
});

map.add(wms); //Add layers to the map

Method

setParams(params)

Set parameters of the OGC standard WMS getMap interface, including VERSION, LAYERS, STYLES, FORMAT, TRANSPARENT, etc.

Parameter: params(Object) Parameter collection,{VERSION: '1.0', ...}

Demo:

wms.setParams({
  LAYERS: "topp:states",
  VERSION: "1.3.0",
});

getParams()

Obtain parameters of the OGC standard WMS getMap interface

return value: (object) Interface Parameters

Demo:

wms.getParams();

setUrl(url)

Set WMS Service Address

Parameter: url (String) Service Address

Demo:

wms.setUrl("https://ahocevar.com/geoserver/wms");

getUrl(url)

Get WMS Service Address

return value: (String) Service Address

Demo:

wms.getUrl();

getOptions()

Get Layer Parameter Information

return value: (Object) Layer Parameter Information

Demo:

wms.getOptions();

getzIndex()

Get layer hierarchy

return value: (Number) zIndex layer hierarchy

Demo:

wms.getzIndex();

setzIndex(zIndex)

Set the layer hierarchy, the larger the number, the higher the layer hierarchy

Parameter: zIndex (Number) Layer hierarchy value

Demo:

wms.setzIndex(10);

getOpacity()

Get layer transparency

return value: (Number) Opacity layer opacity

Demo:

wms.getOpacity();

setOpacity(opacity)

Set the layer opacity, range [0 ~ 1], 1 means completely opaque, 0 means completely transparent

Parameter: opacity (Number) Layer opacity

Demo:

wms.setOpacity(0.5);

getZooms()

Get the level range that this layer can display, default range: [2-30]

return value: ([Number, Number]) The level range that this layer can display

Demo:

wms.getZooms();

setZooms(zooms)

Set the Level Range of the Layer

Parameter: zooms([Number, Number]) The Zoom Range of the Layer

Demo:

wms.setZooms([8,12]);

show()

Set Layer Visible

Demo:

wms.show();

hide()

Set Layer Hidden

Demo:

wms.hide();

Event

Event Name	Description
complete	Tile Load Finished Event

For event object property descriptions, go to:MapsEvent