Structure tensor analysis and 2D finite element integration pointwise material orientation mapping

The mapping of the 2D projection of the material orientation into a finite element model (Abaqus). Jupyter Notebook will perform a structure tensor analysis of an x-ray scan and extract the values in the integration points of a finite element model. The scan-data should be loaded as a nifti-file and the finite element integration points should be present in a by Abaqus generated dat-file. The output will be a Fortran file for each mapped slice which then can be used as a "INCLUDE" fortran file in the orient.f user-subroutine inside Abaqus.