PurplePen.ExportRouteGadget.GetAllCourseAreas C# (CSharp) Method

        private RectangleF GetAllCourseAreas()
        {
            RectangleF mergedRect = new RectangleF();
            RectangleF mapBounds = mapDisplay.MapBounds;

            bool first = true;
            foreach (Id<Course> courseId in eventDB.AllCourseIds) {
                RectangleF courseArea = GetCourseArea(courseId);
                if (first)
                    mergedRect = courseArea;
                else
                    mergedRect = RectangleF.Union(mergedRect, courseArea);
                first = false;
            }

            // If there were no courses, then use the map bounds, otherwise intersect the map bounds with the merged courses.
            if (first)
                return mapBounds;
            else
                return RectangleF.Intersect(mergedRect, mapBounds);
        }