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I see that it is possible to create a circular symbol (among other shapes) with SimpleMarkerSymbol. I also see that it is possible to create a text symbol with TextSymbol. Is it possible to combine these two to put a bit of text, centered, over the top of a circle element?

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The easiest method is going to be to use two graphics layers with two different symbologies. (Or, if you have a large number of symbols and access to arcgis server, use a map service with the correct symbology underneath a graphics layer with blank symbols with no fill; that's what I do here: http://maps.stlouisco.com/police/beta)

It should be feasible to create a symbol class that does what you want. I want to do that for my application, so I will try to take some time later this week to figure that out.

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Is there any documentation available on creating custom symbol classes? – jsight Nov 1 '11 at 2:00
Not that I could find. It is going to take diving into the code base to figure out. – blord-castillo Nov 1 '11 at 11:04
I have the same problem as jsight, please, blord-castillo, could you extend your explanation about how to proceed? I am not sure of understanding what you say: I can publish my symbology in ArcGIS Server, but then, how do I use it on my ArcGIS JS side? How to associate to the textSymbol the symbology in my server? Thanks. – iamgin Nov 30 '12 at 14:56
I am working on changing this process, but what I am doing in that sample is publishing a map service and using that to display the symbols on the map. Meanwhile, on top of the map service, is a separate graphics layers using data from the map service (I will change this to feature service in the feature) to create a graphics layer on top of the symbols. The graphics layer uses a blank symbology; but allows on click and mouse over interactions still – blord-castillo Nov 30 '12 at 15:28

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