ArcMap is run using primarily Shape Files and in more recent versions Geodatabases can be used to store larger sets of data. These file formats are what are uploaded into the program to view spatial data.
Edema is swelling of both legs from a buildup of extra fluid. Prolonged standing or sitting, especially in hot weather, can cause excess fluid to accumulate in the feet, ankles and lower legs. Tiny valves inside the veins of the legs can become weakened, causing a common problem called venous insufficiency.
Leg Swelling (Edema), New Onset. Welcome to our health decision guide for people with new leg swelling, also called lower extremity edema.. We're sorry to hear you have this problem! You may have noticed new swelling in any part of one or both legs, this includes feet and ankles. If you've had foot, ankle, and/or leg swelling for a while, this guide may still be useful, but the focus will be on new symptoms. There are a number of causes of lower extremity edema. This guide will cover some of the most common, but it is not exhaustive; rarer causes will not be covered. In addition, keep in mind that there could be more than one cause of swelling.