Jak automaticky aktualizovat symboliku pomocí jedinečných barev

Question

Dobrý den,

Pro polygony projektových oblastí ve webové mapě používám jedinečnou symboliku, kdy má každý polygon vlastní barvu. Vychází z pole, ve kterém je uveden název projektu. Když uživatelé přidají do mapy nové polygony projektů, potřebuji, aby každý měl vlastní jedinečnou barvu. Lze toho dosáhnout, aniž bych musel pravidelně otevírat Arcmap, znovu aktualizovat symboliku a znovu publikovat službu?

Děkuji

Anonymous User · Answer

Maybe you could use the ObjectID? If colors are already assigned to a certain amount of numbers (1 to ...), the colors will show up as soon as a user creates a new feature which will be attributed the ObjectID.

To apply the symbology, you may need to create some features to assign colors to numbers and then delete these features...

AaronThompson · Answer

I am unable to create subtypes and domains for this project because the list of projects is constantly changing, as new projects are being added all the time. So that idea likely wont work. Thanks for the response though!

JayantaPoddar · Answer

Do you have the list of all the project names? Then you could Create Subtypes and define appropriate symbology to the feature class (even if the features are not yet created in it).

You could also standardize the process in which the user will get the list of project names in a drop-down by creating Attribute Domain. Exercise 3: Create subtypes and attribute domains—ArcGIS Help | ArcGIS Desktop