HeatMaps Module

Heat mapping is a data visualization that represents the density of features on the map. The HeatMaps Module works with a number of other modules to implement heat maps. For information about configuring heat maps for a layer, see Heat Maps.

Specifically, the HeatMaps Module implements the visualizationProvider for heat maps and the commands and events that work with heat maps. The HeatMaps Module uses the data from the feature layer to calculate the heat map and renders the heat map on the feature layer.

The HeatMaps Module provides two commands and two events, which you can use in hyperlinks and workflows. The AddHeatMap command renders a heat map for the specified feature layer. HeatMapAddedEvent is raised when a heat map is rendered on the map. The RemoveHeatMap command removes the heat map from the specified feature layer. HeatMapRemovedEvent is raised when a heat map is removed. At most one visualization can be active at a time. For more information, see Viewer Commands and Events.

The HeatMaps Module works with the Menu Module and Visualization Module. The Menu Module has a LayerActions menu item, Turn on/off layer visualizations, that opens the Visualization Options panel, where the user can change visualizations and their settings. The Visualization Options panel is implemented by the Visualization Module.

The HeatMaps Module has one view, HeatMapsView. HeatMapsView presents the heat map settings that end users can configure. By default, HeatMapView is hosted in the LayerVisualizationRegion container region, which is referenced by the Visualization Module's VisualizationViewModel.

The HeatMaps Module's intensity and gradientOptions properties set the defaults to use when a layer's heat map settings are not configured in the site. Every feature layer has a Feature Heat Maps tab in Manager where you can configure the heat map settings for that layer. If a user views the heat maps for two layers at the same time, having different gradients for the different layers makes it possible to distinguish one layer's hot areas from the other layer's hot areas. For more information, see Heat Maps.

Configuration Properties

Module

Views

View Models

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Documentation Version 4.11