public void FillFromDB() // does not affect the display object { if (array1displayed) { array2vertices = SystemClassDB.GetSystemVector(Id, ref array2, ref carray2, dBAsk, Percentage, (x, y, z) => new Vector3(x, y, z)); // MAY return array/carray is null } else { array1vertices = SystemClassDB.GetSystemVector(Id, ref array1, ref carray1, dBAsk, Percentage, (x, y, z) => new Vector3(x, y, z)); } }