ArcGIS Online "Layer did not draw completely" message?

AlejandroToth2

Hi,

We are testing ArcGIS Online performance but, to our surprise, we are getting a “Layer did not draw completely because there are too many features to display in this area of the map”. Is this a known limitation? Any workaround?

Steps to reproduce:

1) Download the following zipped shapefile…

http://www.ign.gob.ar/archivos/sig250/publicacion-conae-2012/009_Coberturas_Del_Suelo.zip

2) Upload it into ArcGIS Online and finally draw it.

3) You should be getting the following message...

I will appreciate any help.

Thanks,

Alejandro

KellyGerrow

Hi Megan,

Updated Answer:

When displaying large amounts of feature data in web maps and apps, there will eventually will be a point in time when the layer stops performing optimally and is visually confusing. For this reason, an exclamation marker will display indicating “Layer did not completely draw” in the bottom left corner of the web map. This occurs when there are more features or vertices that need to be displayed in a request area than can be returned by the server. Web apps and maps send several requests to the server, therefore there would need to be a dense area of features in a specific area of the web map to run into this limitation. The error will indicate that you need to zoom in to a specific area to draw all of the features. If you need to display large amounts of data consider the following questions and workflows to efficiently display large amounts of data:

• Can the geometry be generalized? If you are displaying data with complex geometry at small scales, use the optimize drawing feature and generalize the data at the small scales and maintain the complexity at large scales.
• Does the data need to be viewed at small scales? If the data needs to be viewed at large scales only, consider setting the visible range so that the layers will only draw when a reduced amount of data is requested.
• Is using a tiled service as an operational layer possible? With tiles creating automatically from changing feature layers, using tile layers are a great way to quickly draw large datasets. Check out this blog for more details.