Cómo actualizar automáticamente la simbología con colores únicos

Question

Hola:

Tengo una simbología con colores únicos para los polígonos de las áreas de proyectos en un mapa web, de modo que cada polígono tiene un color diferente. Esto se basa en un campo que contiene el nombre del proyecto. A medida que los usuarios agreguen nuevos polígonos de proyectos al mapa, necesito que cada uno tenga un color único. ¿Hay alguna manera de hacerlo sin tener que abrir ArcMap periódicamente, volver a actualizar la simbología y volver a publicar el servicio?

Gracias

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