specimen Reference frame selection menu for ANG file formats- 'convertEuler2SpatialReferenceFrame' - what is its purpose.

[Shaumik Lenka]

In the specimen Reference frame selection menu of the import wizard for ANG file formats while plotting EBSD data, what does 'convertEuler2SpatialReferenceFrame' convert.

My data ref frame is Euler by default, but on selecting this I found that Mtex is rotating the frame.- Why and by how much is it doing this?

And does the 'convertSpatial2EulerReferenceFrame' do vice versa?

[Rüdiger Kilian]

Hello Shaumik Lenka,

help loadEBSD_ang

gives for me

  read TSL *.ang file
 
 % Syntax
    ebsd = loadEBSD_ang(fname,'convertSpatial2EulerReferenceFrame')
    ebsd = loadEBSD_ang(fname,'convertEuler2SpatialReferenceFrame')
 
 % Input
   fname - file name
 
 % Flags
   convertSpatial2EulerReferenceFrame - change x and y values such that
   spatial and Euler reference frame coincide, i.e., rotate them by 180
   degree
   convertEuler2SpatialReferenceFrame - change the Euler angles such that
   spatial and Euler reference frame coincide, i.e., rotate them by 180
   degree

The changelog (v 3.40) mentions:

"
MTEX is now aware about inconsistent coordinate system used in CTF and HKL EBSD files for Euler angles and spatial coordinates. The user can now convert either the spatial coordinates or the Euler angles such that they become consistent. This can be easily done by the import wizard or via the commands

% convert spatial coordinates to Euler angle coordinate system
loadEBSD('filename','convertSpatial2EulerReferenceFrame')

% convert Euler angles to spatial coordinate system
loadEBSD('filename','convertEuler2SpatialReferenceFrame')
"

All the best,
Rüdiger

To: mtex...@googlegroups.com
Subject: {MTEX} specimen Reference frame selection menu for ANG file formats- 'convertEuler2SpatialReferenceFrame' - what is its purpose.

In the specimen Reference frame selection menu of the import wizard for ANG file formats while plotting EBSD data, what does 'convertEuler2SpatialReferenceFrame' convert.

My data ref frame is Euler by default, but on selecting this I found that Mtex is rotating the frame.- Why and by how much is it doing this?

And does the 'convertSpatial2EulerReferenceFrame' do vice versa?

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