@@ -0,0 +1,260 @@
+class Mesh(object):%0A    def __init__(self, lx, ly, lz, dx, dy, dz):%0A        self.lx = lx%0A        self.ly = ly%0A        self.lz = lz%0A        self.dx = dx%0A        self.dy = dy%0A        self.dz = dz%0A%0A    def mesh_info(self):%0A        return (lx, ly, lz, dx, dy, dz)%0A

Add mesh class.