WPF, Scale and Resolution

Discussion created by lisardggy on Aug 30, 2011
Latest reply on Mar 23, 2012 by gsinner

I'm trying to replicate the behavior of ArcClient, where layers are automatically hidden or shown based on the current zoom level/map scale. I'm getting the layers via the SOAP web service, and get the MinScale and MaxScale values.

The WPF FeatureLayer objects, though, only contain MinimumResolution/MaximumResolution properties, which aren't directly mappable to MinScale/MaxScale. Some googling led me to try adding the current display DPI into the equation, but even if I do, I can't figure out how to map between Scale and Resolution.

Can anyone help me out here?