Unable to read .sdf5 master kikuchi pattern file

[JaiSN-cam]

Hi Team.
I am new to the kikuchipy library. I am trying to load a master kikuchi pattern file which is simulated from the AztecCrystal software and the format of the file is .sdf5 (Which I thought it is close to .hdf5). But, when I tried reading the file using 'kp.load()' command, I was getting the error that the file couldn't be read. When I checked the possible formats that the kikuchypy allows to read, I came across that kikuchipy can only read .H5OINA files from the oxford instruments/Aztec. I am unaware at the moment if the creation of master kikuchi pattern file is possible alone with the kikuchipy. If it is possible, then I don't have any reason to import an external master kikuchi pattern file generated from the other resources. Please guide me a possible way of loading a .sdf5 master kikuchi file generated from the AztecCrystal. The code for the above issue is as follows

s=kp.load(file_path2/"Ti-adp_25kV_3001.sdf5", lazy=False)

The error message is as follows

"Could not read 'C:\Users\Nichenametla Jai Sai\OneDrive - University of Cambridge\Master kikuchi patterns\Ti-adp_25kV_3001.sdf5'. If the file format is supported, please report this error"

Many thanks

[hakonanes]

Hi @JaiSN-cam!

Thank you for trying out kikuchipy. Unfortunately, we cannot read master patterns made with Oxford Instruments' software yet. The reason is that OI uses a different crystal axes alignment than is currently hard-coded in orix, the library kikuchipy uses for crystal rotations and directions:

• OI uses x || a* and z || c
• kikuchipy (and orix) uses x || a and z || c*

We're tracking support for this reader in

• this issue: Reading of master patterns generated with Oxford Instruments MapSweeper #705
• this PR: Reader for Oxford Instruments master pattern #706

We can read master patterns generated with EMsoft. All supported formats are listed in the documentation: https://kikuchipy.org/en/stable/tutorials/load_save_data.html#Supported-file-formats.