Class: SuperMapTerrainProvider

SuperMapTerrainProvider

new SuperMapTerrainProvider()

Used to load published terrain services.

Name Type Default Description
options.url String

The URL for the terrain service.
options.proxy Proxy optional

Service agent.
options.requestVertexNormals Boolean false optional

Whether to request normals (for lighting effects), default not to request.
options.requestWaterMask Boolean false optional

Whether to request a water surface marker (for water surface effects), default not requested.
options.ellipsoid Ellipsoid optional

Ellipsoid, default is WGS84.
options.credit Credit | String optional

Service description information.
options.isSct Boolean true optional

Is the TIN terrain service published for iServer, with stk terrain set to false.
options.isShowGlobe Boolean optional

Whether to exclude invalid terrain areas, default to true (global display).
options.invisibility Boolean optional

Whether to enable the feature of setting terrain visibility, default is false.
options.packingRequest PackingRequest optional

Batch request encoding method.
Example
var  terrainProvider = new SuperMap3D.SuperMapTerrainProvider({
	                        url : ‘http://localhost:8090/Terrain’,
		                    requestWaterMask : true,
		                    requestVertexNormals : true,
		                    isSct : true
                     });
var viewer = new SuperMap3D.Viewer(‘Container’,{
                  terrainProvider : terrainProvider
             });

Members

creditCredit

Obtain the description information of the terrain service.

currentVersionString

Retrieve or set the version of the terrain data currently in use. Currently, only tin terrain data is supported.

customRequestHeadersObject

Custom request header

hasVertexNormalsBoolean

Retrieve whether the current terrain has vertex normals. Cannot be called before SuperMapTerrainProvider # ready returns TRUE.

hasWaterMaskBoolean

Used to determine whether the current terrain service includes water surface mask data.

readonly historyVersionsString

Obtain all historical version information of terrain data. Currently, only tin terrain data is supported.

indexedDBSettingObject

Get or set whether the terrain's IndexedDB tiles are enabled (not supported by IE browser).

Example
// Set whether to save terrain tiles to the browser's IndexedDB database
viewer.terrainProvider.indexedDBSetting.isOpen = true

isCreateSkirtBoolean

Get or set whether to create skirt hem

isShowGlobeBoolean

Get or set whether to exclude invalid terrain areas (for TIN terrain), default to true, displayed globally.

readyBoolean

Obtain whether the terrain service is ready.

readonly readyPromisePromise.<Boolean>

Get the ready state promise object for the terrain service.

requestVertexNormalsBoolean

Whether to request vertex normals.

requestWaterMaskBoolean

Do you want to request water surface mask data.

subdomainsString

Get or set the subdomain name. This interface allows you to request data from a specified subdomain.

tilingSchemeGeographicTilingScheme

Obtain the projection object (latitude and longitude or Mercator projection) of the terrain service.

visibleBoolean

Get or set whether the terrain is visible. By using this interface, it is possible to set the visibility of terrain without refreshing the Earth. It is necessary to set invisibility to true when creating SuperMapTerrainProvider. Only terrain data published by iServer supports explicit and implicit support.

Example
var viewer = new SuperMap3D.Viewer('Container',{
    // Create an instance of a terrain service provider with the URL of TIN terrain service published by SuperMap iServer
    terrainProvider : new SuperMap3D.SuperMapTerrainProvider({
        url : URL_CONFIG.SiChuan_TERRAIN,
        isSct : true,// When the terrain service originates from SuperMap iServer, isSct must be set to true
        invisibility:true// When hiding terrain, invisibility must be set to true
        }),
    });
        // Add an imagery service published by SuperMap iServer
        var layer = viewer.imageryLayers.addImageryProvider(new SuperMap3D.SuperMapImageryProvider({
            url : URL_CONFIG.SiChuan_IMG
        }));

Methods

getLevelMaximumGeometricError(level){Number}

Obtain the maximum geometric error for this level.

Name Type Description
level Number

Tile level.
Returns:
Type Description
Number Maximum geometric error.

getTileDataAvailable(x, y, level){Boolean}

Obtain whether the tile data corresponding to x y levels is available.

Name Type Description
x Number

The x-coordinate.
y Number

Y-coordinate.
level Number

Tile level.
Returns:
Type Description
Boolean Is it available.