Since version: 1.15
In the feature reduction popup profile, map authors can write expressions that return values (i.e. attributes) for display in the popup of a clustering or binning visualization. Expressions can be referenced in the popup content's text template, field tables, and media charts. The expression executes when the popup displays. The script should return either text or a number and be referenced in the table cell or text comprising the popup's content.
Context
The following products implement this profile:
Spatial reference
The spatial reference of the map in which the expression executes determines the execution context's spatial reference.
Time zone
The time zone of the map in which the expression executes determines the execution context's default time zone.
Profile variables
| Variable Name | Type | Description |
|---|---|---|
| $feature | Feature | Provides access to the aggregate fields defined in either clustering or binning popups, such as $feature.cluster_ and any other fields summarized from the points represented by the aggregate (e.g. $feature.cluster_). |
| $aggregatedFeatures | FeatureSet | A FeatureSet containing all the features represented by the cluster or bin. |
Function bundles
Core | Geometry | Data Access | Portal Access
Return types
Example
Calculates the number of crashes that had at least one fatality within a cluster of vehicle accidents.
// returns the total number of car crashes
// that resulted in at least one fatality in a
// cluster representing motor vehicle accidents
Count(Filter($aggregatedFeatures, "FATALITIES > 0"))