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Maps

This section takes you through the steps to add a Map to your View to visualize weather data.

Add Map Component

To add a Map to a View:

  1. Create the weather view, as described in the Views walkthrough.

  2. Search for the Map component in the left-hand list of components and drag into the workspace.

    Find the map component in the list of dashboard components.

  3. With the map component selected, (it has a light blue border when active), update the properties of the Map section:

    • Click "set Google Maps JavaScript API Key in Map Key Property". This allows you to save the map key as a View State inside your Map component.

      The Map Key is saved as a view state inside your view.

    • Provide a Google Maps API Map Key. This is saved as a View State parameter in your view.

      The Map Key is saved as a view state inside your view.

    • Centralize the map on New York with the following Map properties:

      Setting Value
      CenterX 40.75
      CenterY -73.98

      Define Map properties.

    Sign up for Google Maps API Key

    You need a Google Maps API Map Key to use the Maps component. Learn more about Google Map Keys.

2. Set Data Source

Expand the Points properties and click Data Source.

  1. Create a New data source.

  2. Click API in the data editor, and set:

    Setting Value
    table weather
    startTS midnight of deployment date
    endTS 23:59 of deployment date
    groupBy name, sensor, borough. GroupBy must be of type List
    agg see next step to create a View State

    1. Within agg, create a View State by rolling over the text input and clicking on the small, blue eye icon to the right.

      Create a view state for the agg property.

    2. In the view state dialog, create a New view state and set type to List.

    3. Set Default to lastlat;last;latitude and lastlon;last;longitude; tab across to add the second filter.

    4. Click the refresh icon next to Value to copy the default values to the Value property.

      Create a view state and assign the latitude and longitude variables to default. Click the refresh icon to copy the list from default to value.

    5. Click Select Item to apply the View State.

  3. Click Apply and Select Item to apply the data source change to the map.

3. Configure Map Component

  1. In the Points properties set:
Setting Value
Latitude Data lastlat
Longitude Data lastlong

The following Map showing sensor locations in New York is displayed.

Map of sensor locations in New York.