layer
A layer object may allow overrides on popup content and drawing behavior for individual layers of a web service. This object also contains geographic features and their attributes when used in a feature collection.
Referenced by: featureCollection, Map Service Layer (ArcGISMapServiceLayer), Tiled Map Service Layer (ArcGISTiledMapServiceLayer)
Properties
| Property | Details |
|---|---|
| defaultVisibility | Default visibility of the layers in the map service. |
| definitionEditor | An object that provides interactive filters. |
| disablePopup | Indicates whether to allow a client to ignore the popups defined on the layer. The popupInfo object could be saved in the map or item. |
| featureSet | A featureSet object containing the geometry and attributes of the features in the layer. |
| field | Information about each field in a layer. Used with feature collections. |
| id | The layer id, as a numeric value. |
| layerDefinition | The layerDefinition object defines the attribute schema and drawing information for the layer. |
| layerItemId | The associated query layer's itemId. Only available when there is a layerUrl. You will see this if popups are configured on it. |
| layerUrl | A URL to a service that should be used for all queries against the layer. |
| maxScale | A number representing the maximum scale at which the layer will be visible. The number is the scale's denominator. |
| minScale | A number representing the minimum scale at which the layer will be visible. The number is the scale's denominator. |
| name | The name of the layer. |
| nextObjectId | Iterates within a featureset. Number objectId value is incremented 1 based on last Object ID defined for the feature in a featureset. Used with feature collections. |
| parentLayerId | If working with nested layers, this is the numeric value indicating the layer id of the next layer (parent) directly above the current referenced layer. |
| popupInfo | A popupInfo object defining the popup window content for the layer. |
| showLegend | A Boolean indicating if the layer should be shown in the legend in client applications. |
| subLayer | Integer value indicating the layer id. |
| subLayerIds | If the layer is a parent layer, it will have one or more sub layers included in an array. |
| title | A user-friendly string title for the layer that can be used in a table of contents. |
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