Map layers

A map view consists of multiple layers from a map service or a mash-up of multiple map service providers.

Example: A single map view can have separate layers for geographic features, city streets, hydrants, street lights, parcels, and others.

Note: An agency administrator configures the default map layers that are available, visible, and editable by user group members. Contact your agency administrator with any questions.

Depending on the permission settings defined for the user group you belong to, you can customize the visibility of the map layers according to your workflow needs.

Example: If you want to only see the fire hydrants, you can show only the Hydrants layer and hide the other layers, or you can show all layers and move up the Hydrants layer and adjust the transparency so you can see their proximity to other GIS objects.

To access the map layers option

From the Map dashboard, select the Layers option from the toolbar on the right.

Visible and selectable map attributes

The Layers option allows you to set the visible and selectable attributes of the map layers. It displays the various map services and layers on the map. When you select the Layersoption for the first time, the option displays the map services you have access to, and whether those services are visible or selectable.

Note: If a map service name is truncated because it is too long, hover your mouse over the map service name to see its full name.

On the list of map services, you can expand a map service to see its map layers. The Layers option allows you to control their map view by setting the visible or selectable attributes of the map layers. This is especially helpful when selecting or editing multiple GIS objects on map service mash-ups.

Example: A street light inspector might want to see and update the street lights within a particular area, relative to address and street locations. Although he wants to see the street lights, streets, and addresses, he is only interested in inspecting street light GIS information. In this scenario, the inspector can set the Street Light layer as visible and selectable, and all other layers as visible only. With these settings, when he selects an area covering the street lights he needs to inspect, only the street lights are selected and displayed on the GIS objects tab of the map Contents panel:

Note: If there are parcels and assets associated with the selected GIS objects, they will be listed on the Records tab of the map Contents panel.

On the Layers option, you can:

Expand or collapse the hierarchical list of map services and map layers.
Toggle the Visible option to show or hide a map service or layer.
- The current visibility of a map layer depends on its configured visibility scale on the map service.
  
  If the map is not currently zoomed at the configured scale dependency, the map layer on the Layers option is disabled. When the you zoom into a visible scale, the map layer along with the Visible and Selectable options become enabled.
- Deselecting the Visible option for a map service hides all of its map layers. However, changing the Visible option for a map service (or a parent map layer) does not change the Visible option of the children map layers.
  
  The Visible option settings for children map layers persist to allow you to easily toggle the setting at the parent level and adjust it at the individual level only if necessary.
  
  Example: If a map service has at least 20 layers, you can toggle the visibility at the map service level and avoid having to deselect or reselect at least 20 options.
- Deselecting the Visible option automatically deselects the Selectable option. A map service or layer is selectable only if it is visible.
- Selecting the Visible option again does not automatically reselect the Selectable option because a visible layer is not necessarily selectable. You must explicitly make a map layer selectable.
Toggle the Selectable option to allow or disallow GIS object selection on the map service or layer.
- Deselecting the Selectable option for a map service deselects all of its map layers. However, changing the Selectable option for a map service (or a parent map layer) does not change the Selectable options of the children map layers.
  
  The Selectable option settings for children map layers persist to allow you to easily toggle the setting at the parent level and adjust it at the individual level only if necessary. (Let's say a map service has at least 20 layers, you can just toggle the selectable at the map service level and avoid having to deselect or reselect at least 20 options.)
- If the Visible option is not selected or a map layer is not visible at the current zoom level, the Selectable option is disabled.
Move the Opacity slider under a map service to adjust its opacity (100%) or transparency (0%).
Run a Query if a map service contains layers that have been configured with a dynamic theme query. The following example shows the Query link for the Permits map service containing dynamic theme queries for the Buildings objects, Open Permits, and Street objects map layers:

The GIS administrator configures the map service permissions and the initial settings of the Visible and Selectable attributes for the default or any named GIS user group. Contact your agency administrator with questions.