PROCEDURE: rerange PURPOSE: Reformats arrays so they may be plotted as lattitude and longitude. Changes arrays so that they are in the intervals [-pi/2, +pi/2] and [-pi, +pi]. Can change both lattitude and longitude or just longitude. ARGUMENTS: lng The longitude array in radians. lat The corresponding lattitude array in radians. (Optional) KEYWORDS: degrees Set this to return the arrays in degrees. Created by: J.Rauchleiba 12/20/96