Comment mettre automatiquement à jour la symbologie avec des couleurs uniques

Question

Bonjour,

J’utilise une symbologie unique pour les polygones des zones de projet dans une carte Web, où chaque polygone a une couleur différente. Celle-ci est basée sur un champ contenant le nom du projet. Lorsque les utilisateurs ajoutent de nouveaux polygones de projet à la carte, j’aimerais que chacun ait sa propre couleur. Existe-t-il un moyen de le faire sans devoir ouvrir régulièrement Arcmap, mettre à jour la symbologie et republier le service ?

Merci

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