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====== GrainSpotter ======
GrainSpotter is a software which looks for grains in a 2D diffraction image. It was developed by S. Schmidt, Technical University of Denmark. See the publication for more information:

Søren Schmidt\\ 
//GrainSpotter//: a fast and robust polycrystalline indexing algorithm\\
J. Appl. Cryst. (2014). **47**, 276-284\\
https://doi.org/10.1107/S1600576713030185

===== Installing GrainSpotter =====

==== Necessary Hardware and Software ====
First of all, you will need Linux, either as a separate harddrive (with lots of memory space) or as a virtual machine on your Windows/Apple computer. In case you are not familiar with Linux, ask your administrator for help and maybe do an online crash course to learn basic navigation and so on.

==== Installation ====
You have basically two options for getting GrainSpotter. One is with the help of Anaconda, or from the source. 

=== Installation with Anaconta ===

First of all, get yourself Anaconda: [[https://www.anaconda.com/download/#linux]]

Then go to the [[https://anaconda.org/|Anaconda Cloud]] with your browser and search the cloud for //grainspotter//. Then click on //Files// and download the Linux version. Unpack it to a directory of your choice.

Go back to your browser and click on //Conda//. There is a short code which is necessary to install GrainSpotter. It should be something like ''conda install -c fable grainspotter''

Copy the code to your Konsole and follow the installation instructions.

=== Installation from the source code ===

The installation requires a C compiler installed in your system.
  - Download the GrainSpotter source code from [[https://sourceforge.net/p/fable/code/HEAD/tree/GrainSpotter/trunk/]],
  - Move into the folder with GrainSpotter and type ''make'',
  - Log-in as administrator (root) and type ''make install''.

It should work out of the box.


===== Running the software =====

To run it, you need a file with the ending //.ini//. When you perform a simulation with [[software:polyxsim|PolyXSim]], it should automatically create such a file. For more information on how it should look like click [[fileformat:ini|here]].

When you think your //.ini// file should be fine, it is time to "spot grains" (at least this is what the software should do according to its name). For this type the following to the Konsole:

  grainspotter 'some_file_name'.ini
  or
  GrainSpotter.0.90 'some_file_name'.ini

The algorithm produces a //.log// file, a //.spe// file and a //.gve// file.

===== Manual =====

There is a brief manual online at [[https://sourceforge.net/p/fable/code/HEAD/tree/GrainSpotter/trunk/doc/]].

Otherwise, you should have a look at the following pages
  * [[processing:indexing_with_grainspotter|Grain indexing with GrainSpotter]]
  * [[processing:complex-multi-phase|In the works: indexing a complex dataset with many phases]]
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