In some instances, a single layer has many attributes, which can be symbolized differently for better visual presentation. The image below shows a single layer of volcanoes in Japan (VolcanoJapan) that has multiple attributes, such as Location, Elevation, Type, and Volcanic Explosivity Index (VEI). In this article, two different attributes are symbolized using two types of symbology in ArcGIS Pro.
Use the following steps to symbolize a feature layer using two types of symbology in ArcGIS Pro.
Note: In this workflow, the visual variable is limited to Transparency, Rotation, and Color variations.
The image below shows the VOLCANIC EXPLOSIVITY INDEX field is symbolized to unclassified color symbology.
The image below shows the same layer (VolcanoJapan) is symbolized using two types of symbology (graduated symbols and unclassed colors) to represent two different attributes (Elevation and VOLCANIC EXPLOSIVITY INDEX).
Note: Although it is possible to symbolize a single layer using different symbology, it is best to minimize the types of symbology used. This is to avoid producing a cluttered map and to prevent confusion during data interpretation. An alternative method is to create a copy (or copies) of the original feature layer in the Contents pane, and to symbolize each feature layer differently. Users can then choose to display the layers, as needed, from the Contents pane. The workflow described above limits the options for a second symbology, but having another copy of the feature layer provides more options.