Creating a Graduated Symbol Thematic Map

Graduated symbol map uses symbols to represent different values. The size of the symbol varies according to the values in the field. For example, use graduated symbols to show the number of housing units in the city.

To create a Graduated Symbol thematic map, follow the steps given below:

  1. Click or touch the Add icon on the upper right corner of the map to open the Add panel.
  2. Click or touch the Create Thematic Map icon to create a thematic map.
  3. From the Table drop-down list select a table on which you would want to apply thematic.
    Note: You can also create thematic on query data.
  4. From the Column drop-down list, select a column on which you would like to create thematic.
  5. From the Thematic type drop-down list, select the Graduated Symbol thematic map.
    Note: A Graduated Thematic can be created on numeric column only.
  6. Enter a new name in the Thematic Map Name text box for the Thematic map or you may also retain the default name. The default name is a combination of a table name, column name and visualization name.
    Note: A thematic map name can be a maximum of 50 characters. Special characters are not allowed in thematic map names.
  7. From the Style drop-down list, select symbol of your choice.
  8. From the Positive value color box, select the color to display symbols for positive data values.
  9. From the Size, select the size.
  10. The Highest value displays the maximum absolute value present in the selected column.
  11. From the Relative size by, you can choose size by constant, square root or log.
  12. Click or tap on the Preview Legend button to preview legend range.
  13. Enter a new name in the Thematic Map Name text box for the Thematic map or you may also retain the default name. The default name is a combination of a table name, column name and visualization name.
    Note: A thematic map name can be of maximum 50 characters. Special characters are not allowed in thematic map names.
  14. Click or tap on the Create button.
    The thematic map is created and added as a top level map item. The thematic map also gets listed in the Map Legend panel. When you zoom out on the map a message Layer not visible at this zoom level may appear. This is because the zoom constraint settings was applied on the original layer on which thematic has been created.
  15. Save the map project. For example, click the Overflow icon next to the Map Layers and click Save project. When you save the project, the map project is saved along with any zoom constraint settings applied on the original layer.
    Note: If you do not save the changes in your Map Project, the changes will be lost on reloading the project or refreshing the browser.