I am looking for some confirmation on my understanding of the information message Spatial Reference Does Not Match that I receive when starting an edit session. I have been told by so many that you can ignore it in most cases; however, I have done research that has indicated that there is a danger when editing data that is projected, and has a different coordinate system than the data frame, so I want to make sure that I have not been incorrect all along. The coordinate system of my data frame is almost always set to the regional State Plane projected coordinate system, as well as the new shapefiles I create. I have always thought that as long as the layer you are editing has the same geographic coordinate system as the data frame, your edits will be accurate because even though State Plane is a projected coordinate system, it is based on the same datum. In regards to ignoring the message, I believe it can be accurately ignored as long as the layer you are editing is not in the list of layers whose spatial reference do not match (i.e. some statewide or nationwide datasets that likely have a different coordiante system than my project-level data).Can anyone confirm or deny my thoughts so I can have greater confidence? Thanks!
أكثر...
أكثر...