Latest Contributions by AdrianWelsh

Ah, that kind of makes sense. Selection layers get kind of wonky after awhile. In my professional use, I only use selection layers for a short time then quit on them since they do not stay in tact. It's best to only work with the original layer, then make a new selection layer if needed. Treat selection layers as snapshots in time and only use for a short time - never edit them or add/delete features from them - it only muddies things up! ... View more

Hi David, Dealing with coordinate systems is never easy and there isn't always a good answer. I am not sure what kind of work you deal with or who your clients are but for me, this matters a ton. My client usually needs a certain type of coordinate system so I deal with whatever they need. So much of this deals with what area you're working with too, so if you're dealing with really large datasets, it can get complicated quickly.  I used to use the NAD83_2011 version for all my coordinate system creations. Then when I learned that my client was using just the basic NAD83 and no adjustments, my 2011 version did not always line up properly so I had to go back and change. So, the short answer is, it depends. I am not sure if that helps or not but that's how I deal with coordinate systems (though more often than not, I have to create a custom system since I deal with surveyors who are very particular about accuracy!) ... View more