Can you symbolize polygons as points using ArcGIS Pro?

Nicholas_I_Seigal

I would like to symbolize a single polygon layer using points at small scales and as polygons at large scales. Is this possible with a single layer in ArcGIS Pro? I want single symbol symbology (i.e., not varying by an attribute), but for symbols to be scale-dependant and change symbol type (e.g. red polygons outlines transition to red points at the polygon centroid). How can I accomplish this?

Elfendahl

This reply is for certain way too late for the person who posted the question, but I stumbled across this post when I was searching for how to do something similar. This is how I ended up doing it:

1. Right-click the polygon layer and select Symbology
2. In the Symbology pane under the Primary Symbology tab, select the Scales tab.
3. Click "Add alternative symbol" for each polygon symbol that you want to show a single symbol for at larger scales.
4. Adjust the Scale Range so that the original symbol and the alternative symbol are shown for different scales. At this stage the two symbols are the same, but this will be changed in the next steps.
5. Click on the Symbol for the alternative symbol that you want to display as a point symbol at larger scale. (If you hover the mouse over the Symbol the text "Format symbol" will appear
6. In the Format Polygon Symbol pane that will appear after the click in the previous step, select the properties tab and then click on the Structure tab.
7. Click on "Add symbol layer" and select "Marker layer" from the dropdown.
8. Delete the other layers below the newly added symbol layer as these will no longer be used.
9. Switch to the Layers tab and select the Shape marker layer.
10. Format the marker as you would like to display it by e.g. changing its Form, Color and Size.
11. Under the Marker Placement section, change the Placement to "At center". This is important to do to only show one marker symbol at the center of the polygon.
12. Apply the changes and you should be all set with a point symbol for larger scale and a polygon shape for smaller scales!

Also see these document pages for some related information:

https://pro.arcgis.com/en/pro-app/latest/help/mapping/layer-properties/scale-based-symbol-classes.htm 

https://pro.arcgis.com/en/pro-app/latest/help/mapping/layer-properties/position-and-place-marker-symbol-layers.htm