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# interfaces.mrtrix.convert

## MRTrix2TrackVis

Link to code

Converts MRtrix (.tck) tract files into TrackVis (.trk) format using functions from dipy

### Example

    >>> import nipype.interfaces.mrtrix as mrt
    >>> tck2trk = mrt.MRTrix2TrackVis()
    >>> tck2trk.inputs.in_file = 'dwi_CSD_tracked.tck'
    >>> tck2trk.inputs.image_file = 'diffusion.nii'
    >>> tck2trk.run()

Inputs:

    [Mandatory]
    in_file: (an existing file name)
            The input file for the tracks in MRTrix (.tck) format

    [Optional]
    image_file: (an existing file name)
            The image the tracks were generated from
    matrix_file: (an existing file name)
            A transformation matrix to apply to the tracts after they have been
            generated (from FLIRT - affine transformation from image_file to
            registration_image_file)
    out_filename: (a file name, nipype default value: converted.trk)
            The output filename for the tracks in TrackVis (.trk) format
    registration_image_file: (an existing file name)
            The final image the tracks should be registered to.

Outputs:

    out_file: (an existing file name)

## `read_mrtrix_header()`

Link to code

## `read_mrtrix_streamlines()`

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## `read_mrtrix_tracks()`

Link to code

## `transform_to_affine()`

Link to code