In ArcMap, in the data frame, you can set the reference scale. This is a scale where all symbol sizes are what you specified, and when you zoom-in/out, the symbols scale accordingly instead of being a fixed size. Where is this reference scale property in the iOS SDK ?
The reason I'm asking is because this reference scale works great for AGSDynamicMapServiceLayer, but when creating a AGSFeatureLayer, the symbols are a fixed size. So I want to see if I can set the reference scale in the AGSFeatureLayer and get scalable symbols, so that the symbols scale like they do in the AGSDynamicMapServiceLayer.