I have recently got my first job in GIS after finnishing university. I am working for one of my local councils digitizing planning applications and enforcements from old hardcopy (map documents & microfiche) onto Uniformlive (which I think using a stripped down version of ArcGIS).
What I wanted to ask, and what wasnt practically taught in my digitising modules at university was digitising very large features on a map - for example I have been digitizing quarry boundanries that fill a 1:5000 scale map.
From my own experience doing this, the best way I have found to do it is to first zoom out to a scale where you can see the entire area or the bulk of the area that the feature occupies, and then to digitize the general shape of the feature. Once this is done I will zoom in to a large scale and clean up the overshoots and undershoots and snape them to boundary lines.
This is the only way that I feel comfortable with at the moment doing such large features - because if I try to do the digitizing straight away zoomed in at a large scale I find I lose track of the particular area of a feature I am looking at after awhile.
I just wanted to put this out there and ask if this is generally how other people digitise large features - if not please share you're experiences and tips - it would be extremely vaulable - not just for me I'm sure!
Edited by LukeEdAllen, 05 December 2010 - 02:58 AM.