OptionalblendBlend 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.
OptionalcustomA sequence of custom parameters appended to the URL of all requests related to supporting ArcGIS layer types.
OptionaldefinitionStores interactive filters.
Boolean property indicating whether to ignore popups defined by the service item.
OptionaleffectEffect provides various filter functions to achieve different visual effects similar to how image filters (photo apps) work.
OptionalidA unique identifying string for the layer.
OptionalisThis is applicable if used as a baseMapLayer. A boolean value indicating whether or not the baseMapLayer draws on top (true) of other layers, including operationalLayers , or below (false).
OptionalitemOptional string containing the item ID of the service if it's registered on ArcGIS Online or your organization's portal.
OptionallayerA layerDefinition object defining the attribute schema and drawing information for the layer.
The type of layer.
OptionallistIndicates how the layer should display in the table of contents. The known values are listed below. See support/esri!ListMode.
OptionalmaxA number representing the maximum scale at which the layer will be visible. The number is the scale's denominator; thus, a value of 2400 represents a scale of 1/2,400. A value of 0 indicates that the layer will be visible no matter how far you zoom in.
OptionalminA number representing the minimum scale at which the layer will be visible. The number is the scale's denominator; thus, a value of 2400 represents a scale of 1/2,400.
OptionalmosaicSpecifies the mosaic rule when defining how individual images should be mosaiced.
OptionalopacityThe degree of transparency applied to the layer on the client side, where 0 is full transparency and 1 is no transparency.
OptionalrefreshWhen the refresh interval is set on a layer, the client must refresh that layer only, not the entire web map. The default value is '0', meaning the no refresh. You can enable a refresh interval on the following types of layers: ArcGIS Server web service, hosted feature layer, hosted tile layer, OGC WMS, OGS WMTS, tile layer, GeoRSS, Living Atlas layers, basemaps (including Bing Maps basemaps), CSV from the web with latitude and longitude fields, and KML when added to ArcGIS Online through the My Content page. See https://doc.arcgis.com/en/arcgis-online/create-maps/set-refresh-interval.htm.
OptionalshowIndicates whether to allow map authors the ability to control what layers should be shown in a client's legend.
OptionaltimeThis property is applicable to layers that support time. If 'true', timeAnimation is enabled.
OptionaltitleA user-friendly title for the layer that can be used in a table of contents. If this is not included, then a title is derived from the service.
Optionaltype(Deprecated, use layerType instead.) If the layer is referenced through a URL, but is not an ArcGIS web service, then this parameter can be supplied to denote the layer type.
The URL to the layer.
OptionalvisibilityDetermines whether the layer is initially visible in the web map.
OptionalvisibilityRepresents time extent that will control when a layer should be visible based on webmap's current time. Visibility time extent only affects the layer visibility and will not filter the data.
The imageServiceVectorLayer displays pixel values as vectors. To do this, the image service layer must be a two-band raster in which one band holds magnitude values and one band holds direction values. The imageServiceVectorLayer also supports time-enabled data.
See https://developers.arcgis.com/web-map-specification/objects/imageServiceVectorLayer/.