I'll try to describe my problem the best I can. I'm very new to ArcGIS.
I have a jpeg showing an old map of NYC zones. I was able to georeference this image with a shapefile of NYC blocks. I wish to now create a new feature class where I can trace these zones from the old jpeg onto the new feature class layer using the blocks shapefile as a reference. I will also wish to trace along the blocks in that blocks shapefile layer.
I've been following this thread's advice (second reply) so far. It is as follows:
Add your empty feature class/shapefile to arcmap, and click your Editor button and go to Start Editing. (Assuming you are using V10?)
If you plan on following existing geographic features, look at using the Trace tool. Hint: When tracing, whatever feature you want your line to follow, it has to be Selected.
There are several ways to select a feature: ...by Location ...by Attribute ...by Graphic
Try to explore the Feature Construction toolbar and the various segment creation tools.
However, after I create this blank feature class and add it as a layer, I cannot edit it! I go into "Start Editing" mode, choose the blank feature class, but I cannot trace or do anything after that.
Is there any hope for me? Please let me know if you need more info and thank you so much in advance for any advice.