====== Extract the peaks for a given grain ====== 

This tool is useful if you want to see which peak is assigned to grains or a given grain.

You can use it once you have run an indexing. The input files are
  * the output file from the indexing ([[processing:indexing_with_grainspotter|with GrainSpotter]] at present, the code could be improved to also deal with [[processing:indexing_with_imaged11|ImageD11 indexings]]),
  * the flt file with the [[processing:search_for_peaks|list of peaks]] that was used for indexing.

If you run the code without the ''saveall option'', it will save all peaks that were assigned to a grain (any grain) into the output file you defined.

If you run the code with the ''saveall option'', it will save all peaks that were assigned to a grain (any grain) into the output file you defined, as well as a separate file for each grain in the indexing file and name them as ''newFLT-GrainXXX.flt'', where ''newFLT'' is what you defined for output.

You can then overlay the diffraction data with the peaks that were assign (either to all or to a single grain) using [[software:fabian|Fabian]].

==== timelessSaveFLTGrains ====

<code>
timelessSaveFLTGrains -h

usage: timelessSaveFLTGrains GSFile.log oldFLT.flt newFLT.flt

Creates a new list of peaks in FLT format, including only peaks which have
already been assigned to grains by GrainSpotter This is part of the TIMEleSS
project http://timeless.texture.rocks

positional arguments:
  gsfile                Name of GrainSpotter output file (required)
  oldFLT                FLT file used to generate g-vectors for indexing
                        (required)
  newFLT                Name of FLT file to be created (required)

optional arguments:
  -h, --help            show this help message and exit
  -a SAVEALL, --saveall SAVEALL
                        This option will create a different file for each
                        grain in the Grain Spotter output file. File naming
                        will be newFLT-GrainXXX.flt. Default is Default is
                        False
</code>