Symbolisierung in ArcGIS Online / Portal mit Arcade

Question

Hallo,

Ich finde es beeindruckend, die neue Sprache Arcade für die Symbolisierung oder Beschriftung in ArcGIS Online / Portal zu verwenden.

Wir haben jetzt folgendes Problem:

Wenn ich mit Arcade eine Symbolisierung erstelle, die von zwei Feldern abhängt, und diese zu einem Wert für die Symbolisierung zusammenführe, verschwindet die Symbolisierung in der Karte und in der Feature-Vorlage, und es wird nur ein schwarzer Punkt angezeigt!

Unser Feature-Service hat eine eigene Feature-Vorlage, die aus den zusammengeführten Feldern erstellt wird. Werden die erstellten Symbole (Marker) beim Bearbeiten jedoch nicht angezeigt?

Hat jemand eine Idee, woran das liegt?

Viele Grüße,

Karsten

XanderBakker · Answer

Hi Karsten Rank ,

Not sure if I understand your question correctly, but if you want to publish a layer that has a dynamic calculation inside of it, you might want to look at attribute rules. With calculation attribute rules you can have a trigger that the creation of a new feature starts the calculation of a field based on other fields automatically.

More info here:

* https://pro.arcgis.com/en/pro-app/help/data/geodatabases/overview/an-overview-of-attribute-rules.htm
* https://www.esri.com/arcgis-blog/products/arcgis-pro/data-management/attribute-rules-whats-new-in-arcgis-pro-2-3-and-arcgis-enterprise-10-7/

KarstenRank · Answer

I want to create a symbology depending on two field on the flow.. E.g. if you have five different layers with 20 different symbols, the editor widget is overloaded with 100 symbols.

So my idea was to show only a standard symbol and by changing the attributes, the symbol should change.

Is it possible to publish a field calculation with ArcGIS Pro to a Portal feature service?

XanderBakker · Answer

Hi Karsten Rank ,

What I think is happening is that there is no support for the edit templates to be based on a "virtual field" created with an Arcade expression. I can imagine that you would like to select a concatenated value and that this would fill the two fields it is based. Is that what you want to achieve?

You can use the field calculation and create a actual field for the concatenated values (for which you could define a domain with the accepted values) and create two expressions to extract both parts from this field. That would work.