Overlay Multiple Data Layers with Geometry Columns

You can add geometry columns to multiple data layers.

1. In the Grammar pane, click Layer Options for an existing layer, click Add Layer, and then select Add Data Layer.
   
   

   
   Description of the illustration maps_geodatatype_add_data_layer.png

   
   

   Note that geometry columns can be used only in a data layer. If you need to use them in a reference layer, you must generate a GeoJSON file to support that reference layer.

2. In the Data pane, locate the dataset from which the new layer needs to be overlaid and drag the geometry column to the new data layer.
   
   

   
   Description of the illustration maps_geodatatype_add_geo_col_data_layer.png

   
   

   This example visualizes the new data layer over the existing one and shows how the Storm Line layer is added on top of US Counties.

   
   

   
   Description of the illustration maps_geodatatype_add_geo_new_data_layer.png