Branches to reading level of DISCUS. At this level a new unit cell or structure may be read. The old structure is lost ! If necessary save it with the --> "save" command.
Further help topics are:
Valid commands at this level:
@ ! Execute a macro file (see main help) cell ! reads a single unit cell from file echo ! Echo a string (see main help) exit ! Exits read sublevel free ! Allow free modification of a structure. help ! help to read (see main help) stru ! reads a file containing a whole crystal wait ! waits for user input (see main help)
reads the contents of a single asymmetric unit from file <name> and then generates the unit cell. Optionally the number of unit cells along x,y,z can be given to generated the whole crystal. The number of unit cells default to 1. The unit cells are arranged symmetrically around the origin, .i.e. from -nx/2 to +nx/2 etc. After the unit cell has been read the program returns to the main DISCUS level.
No structure is read. The space group is set to "P1". The lattice constants are set to the optional values on the command line. Default values are 1,1,1 Angstroem and 90,90,90 degrees. The structure does not contain any atoms.
reads a whole structure from file <name>. The space group information is ignored, nor is a check for consistency of space group and lattice constants performed.