impsol [ <filename> ]

  Import the magnetization vectors and store them in the data structure of the corresponding vertices. The file structure is described in the source code of extend.c.

If no filename is given, a default magnetization will be created: All vertices lying above the plane through $(0, 0, \frac{1}{2})$ parallel to the x-y-plane will be assigned the magnetization vector (-1, 0, 0). All vertices lying in or below that plane will be assigned a magnetization vector (+1, 0, 0). Thus two domains are created. The upper one is magnetized in negative x-direction, the lower in positive x-direction.