Top panels: snapshots of the system at the temperature and at different times from start of crystallization: (a) glassy system without the crystallization centers; (b) two-phase state of the system containing crystalline nuclei; (c) polycrystalline system consisting of separate crystalline domains. Bottom panels: -projections of the glassy system (d), the two-phase system (e) and the polycrystalline system (f). Inset to panel (f) shows the diffraction pattern obtained by transmission electron microscopy for polycrystalline foil.