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Country map with bubbles

Cloudera Data Visualization Map visuals can use bubbles to show relative measurement values for countries. You can display two measurements at the same time: the first measurement as the color of the bubble, and the second one as the relative size of the bubble.

The following steps demonstrate how to create a new map visual on the dataset World Life Expectancy [data source samples.world_life_expectancy]. It produces bubbles with area that corresponds to the relative population in each country.

  1. Start a new visual based on the World Life Expectancy dataset.
    For instructions, see Creating a visual.
  2. In the VISUALS menu, find and click Map.
    The shelves of the visual changed. They are now Geo, Color, Size, Drill, Tooltips, X Trellis, Y Trellis, and Filters. The only mandatory shelf for map visuals is Geo.
  3. Populate the shelves from the available fields (Dimensions and Measures) in the DATA menu.
    1. Under Dimensions, select country and add it to the Geo shelf.
    2. Under Measures, select population and add it to the Color shelf.
    3. Under Measures, select gdp_per_capita and add it to the Size shelf.
    4. Under Measures, select year and add it to the Filters shelf. When the Filter for year window modal appears, select 2010 in the Values tab, and click APPLY.
  4. Change the map from choropleth to bubble marks, as described in Displaying bubbles on maps.
  5. Adjust the size range of the marks to 1-10, as described in Changing the mark size range.
  6. Click REFRESH VISUAL.
    The map visual graph appears.
  7. Optional: On the Tooltips shelf, add several fields from Dimensions and Measures.
    This enables you to see specific descriptive information in your visuals, such as input values, segment affiliation, and calculations.

    For example, from Dimensions, drag un_subregion, un_region, and year to the Tooltips shelf.

  8. Optional: Alias the fields on the shelves to improve the readability of the visual and its tooltip.
    • population as Population
    • un_subregion as UN Subregion
    • un_region as UN Region
    • year as Year
    For instructions, see Alias.
  9. Optional: Format the number reported by the GDP per Capita field to include a thousands separator, and format Year not to use the thousands separator.
    For more information, see Real number display format and Integer display format.
  10. Optional: [Recommended] Enable panning and zooming option, as described in Customizing zoom.
  11. Optional: Change the color palette to blue, as described in Change color palette visuals.
  12. Click REFRESH VISUAL.

    You can move the visual (pan), zoom in and out, and see the details in the Tooltips text.

  13. 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 'World Population - Map with Bubbles'. You can also add a brief description of the visual as a subtitle below the title of the visualization.

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