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.
Causes of Swollen Legs. Gradual swelling of the legs, also known as edema, can be a sign of an underlying medical condition. For example, leg swelling can indicate kidney problems or even heart failure. Raising the legs, wearing compression stockings, watching salt intake and taking a diuretic (water pill) can all help get rid of edema in the legs. Fortunately, the causes of swollen legs can be managed effectively.