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Latitude and longitude map with bubbles

Cloudera Data Visualization Map visuals support measurement plots over a geographic map, based on latitude and longitude. Bubble maps display up to two measurements simultaneously: as the color of the bubble, and as the relative size of the bubble.

A geographic coordinate map of the United States, based on degrees of latitude and longitude, shows a comparison of measurement values across US States. The following steps extend the work completed in US zipcode map with bubbles, and demonstrate how to create a map visual on the Income Tax Returns dataset. It produces maps with bubble marks that correspond to the relative size of the measurement at each latitude and longitude pair.

Before starting this exercise, supplement the Income Tax Returns dataset by adding data from zipcode-lat-long.csv into your database, and making a simple joins between zip_tax_returns_2016.zipcode and zipcode_lat_long.zipcode. For instructions, see Data model: joins.

  1. Clone the Income Tax Returns - Zipcode visual.
  2. Change the fields on the shelves:
    1. Remove all the fields from the Filters shelf.
    2. Remove the field Zipcode from the Geo shelf.
    3. In the DATA menu, enter the term 'latitude' in the Search box, and add the Latitude field to the Geo shelf.
    4. Search for term 'longitude', and add the Longitude field to the Geo shelf.
  3. Open the Settings menu, expand the Map menu, and select the United Sates Map View option.
    For more information, see Map view.
  4. Click REFRESH VISUAL.
    The map visual appears. You can move the visual (pan), zoom in and out, and see the details in the Tooltips text.
  5. Click the pencil/edit icon next to the title of the visualization to enter a name for the visual.

    In this example, the title is changed to 'Income Tax Returns - Lat and Long'. You can also add a brief description of the visual as a subtitle below the title of the visualization.

  6. At the top left corner of the Dashboard Designer, click SAVE.