# Introduction

Many controls show tool tips, when the mouse hovers over them for a short time. The help screens try to tell you what’s important. However, some basis knowledge about the corresponding topic is assumed. The xfplo tool kit is under constant development and hence not always complete or consistent.

The program has a set of command line options, which are displayed by:

    xfplo -h

and printed below for reference.

    usage: xfplo [-h] [-fs] [-str] [-bw] [-o] [-p printfilename] [-die] [file1 [file2 ...]]
     -h: print this help
     -fs: start fresh in Fermi surface mode
     -str: start fresh in structure mode
     -bw: start fresh in band weight edit mode
     -raw: show +iso_* file data as they are without filling the boundary
     -o: open output window
     -die: quit program after loading
     -p printfilename: print the screen after loading (combine with -die)
     file1...: load corresponding file. If several files are given
               xfplo tries to load all files which fit together.
               If a mode option and a file is given, the
               first file determines the mode if the file belongs
               to a mode.

               Example: 'xfplo -fs =.in' ignores -fs and starts in structure mode

               Example: 'xfplo  t.vtk' will not known the mode
               since the vtk files do not appriori belong to a certain mode.
               Use a a mode option or moded file as first argument instead.

          possible file names:
                   =.in : FPLO input                -> structure mode
                   =.xstr: XFPLO structure file     -> structure mode
                   =.xef:  XFPLO fermi surface file -> fermi surface mode
                   =.bwdef: FPLO/XFPLO bandweight  file -> band weight mode
                   +coeff: FPLO coefficient file    -> band weight mode
                   *.cif: cif file                  -> structure mode
                   +iso_*: dHvA iso files           -> fermi surface mode

                   *.vtk: polygonal data sets       -> no mode
                   wfdata...: Wannier functions     -> structure mode
                   grid_...: gridplot (densplot and such)   -> structure mode

            files saved from xfplo with different names should work too.