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.ini file format

An .ini file is an ASCII file which is used by the GrainSpotter algorithm as an input file.

  spacegroup 136                       ! spacegroup [space group nr]
  !dsrange 0 4.2                       ! dsrange [min max], d-spacing range, multiple ranges can be specified
  tthrange 0 25                        ! tthrange [min max], multiple ranges can be specified
  etarange 0 360                       ! etarange [min max], multiple ranges can be specified
  domega 0.5                           ! domega [stepsize] in omega, degrees 
  omegarange -28 28                    ! omegarange [min max] degrees, multiple ranges can be specified
  filespecs g_vectors.gve grains.log   ! filespecs [gvecsfile grainsfile] 
  cuts 5 0.6 0.8                       ! cuts [min_measuments min_completeness min_uniqueness]
  eulerstep 6                          ! eulerstep [stepsize] : angle step size in Euler space
  uncertainties 0.1 0.2 .5    	       ! uncertainties [sigma_tth sigma_eta sigma_omega] in degrees
  nsigmas 2                   	       ! nsigmas [Nsig] : maximal deviation in sigmas
  !minfracg 0.2                        ! stop search when minfracg (0..1) of the gvectors have been assigned to grains 
  !Nhkls_in_indexing 15		       ! Nhkls_in_indexing [Nfamilies] : use first Nfamilies in indexing
  random 10000                         ! use randomly chosen orientation seeds #trials
  !positionfit                         ! fit the position of the grain

You should adjust the .ini file for your specific purposes. Explanations of the .ini file are listed below.

spacegroup	enter the space group number
dsrange	…

cut_first number	grain is chosen if there are at least this amount of peaks per grain
cut_second number	grain is chosen if there are at least this fraction of the expected peaks present
cut_third number	put in any number