layout: default title: WebTileLayer parent: Core Classes —
dymaptic.GeoBlazor.Core
dymaptic.GeoBlazor.Core.Components.Layers
WebTileLayer Class
WebTileLayer provides a simple way to add non-ArcGIS Server map tiles as a layer to a map. The constructor takes a
URL template that usually follows a pattern of http://some.domain.com/{level}/{col}/{row}/ where level corresponds
to a zoom level, and column and row represent tile column and row, respectively. This pattern is not required, but
is the most common one currently on the web.
ArcGIS Maps SDK for JavaScript
public class WebTileLayer : dymaptic.GeoBlazor.Core.Components.Layers.Layer
Inheritance System.Object 🡒 Microsoft.AspNetCore.Components.ComponentBase 🡒 MapComponent 🡒 Layer 🡒 WebTileLayer
Derived
↳ OpenStreetMapLayer
Properties
WebTileLayer.BlendMode Property
Blend modes are used to blend layers together to create an interesting effect in a layer, or even to produce what
seems like a new layer.
public System.Nullable<dymaptic.GeoBlazor.Core.Components.Layers.BlendMode> BlendMode { get; set; }
Property Value
WebTileLayer.Copyright Property
The attribution information for the layer.
public string? Copyright { get; set; }
Property Value
WebTileLayer.LayerType Property
Used internally to identify the sub type of Layer
public override string LayerType { get; }
Property Value
WebTileLayer.MaxScale Property
The maximum scale (most zoomed in) at which the layer is visible in the view.
public System.Nullable<double> MaxScale { get; set; }
Property Value
System.Nullable<System.Double>
WebTileLayer.MinScale Property
The minimum scale (most zoomed out) at which the layer is visible in the view.
public System.Nullable<double> MinScale { get; set; }
Property Value
System.Nullable<System.Double>
WebTileLayer.PortalItem Property
The portal item from which the layer is loaded.
public dymaptic.GeoBlazor.Core.Components.PortalItem? PortalItem { get; set; }
Property Value
WebTileLayer.RefreshInterval Property
Refresh interval of the layer in minutes.
public System.Nullable<double> RefreshInterval { get; set; }
Property Value
System.Nullable<System.Double>
WebTileLayer.SubDomains Property
A string of subDomain names where tiles are served to speed up tile retrieval. If subDomains are specified, the
UrlTemplate should include a {subDomain} place holder.
public System.Collections.Generic.IList<string>? SubDomains { get; set; }
Property Value
System.Collections.Generic.IList<System.String>
WebTileLayer.TileInfo Property
The tiling scheme information for the layer.
public dymaptic.GeoBlazor.Core.Components.Layers.TileInfo? TileInfo { get; set; }
Property Value
WebTileLayer.UrlTemplate Property
The url template is a string that specifies the URL of the hosted tile images to load. The url template resembles
an absolute URL but with a number of placeholder strings that the source evaluates to decide which tiles to load.
public string? UrlTemplate { get; set; }
Property Value
Remarks
The url template can follow a pattern of https://some.domain.com/{level}/{col}/{row}/ where level corresponds to a
zoom level, and column and row represent a tile column and row, respectively. It can also follow a pattern of
https://some.domain.com/{z}/{x}/{y}/ where z corresponds to a zoom level, and x and y represent a tile location
along x and y axis. The urlTemplate should contain a {subDomain} place holder if subDomains are specified.
Methods
WebTileLayer.RegisterChildComponent(MapComponent) Method
Called from dymaptic.GeoBlazor.Core.Components.MapComponent.OnInitializedAsync to “Register” the current component with it’s parent.
public override System.Threading.Tasks.Task RegisterChildComponent(dymaptic.GeoBlazor.Core.Components.MapComponent child);
Parameters
child MapComponent
The calling, child component to register
Returns
Exceptions
InvalidChildElementException
Throws if the current child is not a valid sub-component to the parent.
Remarks
This method is an implementation detail and should not be called directly by consumers. In future versions, this may be changed to an internal method. If you see no other way to register a child component, please open an issue on GitHub.
WebTileLayer.UnregisterChildComponent(MapComponent) Method
Undoes the “Registration” of a child with its parent.
public override System.Threading.Tasks.Task UnregisterChildComponent(dymaptic.GeoBlazor.Core.Components.MapComponent child);
Parameters
child MapComponent
The child to unregister
Returns
Remarks
This method is an implementation detail and should not be called directly by consumers. In future versions, this may be changed to an internal method.