10.37. Read EDAX EBSD Data (.ang)

Group (Subgroup)

IO (Input)

Description

This Filter will read a single .ang file into a new Image Geometry, allowing the immediate use of Filters on the data instead of having to generate the intermediate .h5ebsd file. A Cell Attribute Matrix and Ensemble Attribute Matrix** will also be created to hold the imported EBSD information. Currently, the user has no control over the names of the created Attribute Arrays. The user should be aware that simply reading the file then performing operations that are dependent on the proper crystallographic and sample reference frame will be undefined or simply wrong. In order to bring the crystal reference frame and sample reference frame into coincidence, rotations will need to be applied to the data.

Default TSL Transformations

If the data has come from a TSL acquisition system and the settings of the acquisition software were in the default modes, he following reference frame transformations may need to be performed based on the version of the OIM Analysis software being used to collect the data:

  • Sample Reference Frame: 180o about the <010> Axis

  • Crystal Reference Frame: 90o about the <001> Axis

The user also may want to assign un-indexed pixels to be ignored by flagging them as “bad”. The Threshold Objects Filter can be used to define this mask by thresholding on values such as Confidence Index > 0.1 or Image Quality > desired quality.

Note About Sample Grid

OIMAnalysis can create EBSD data sampled on a hexagonal grid. The user can look in the .ang file into the header (those lines starting with the “#” character) for a line that is:

# GRID: HexGrid

If the user’s .ang files are hexagonal grid files then they will need to run the Convert EDAX Hex Grid to Square Grid (.ang) filter to first convert the input files square gridded files.

Input Parameter(s)

Parameter Name

Parameter Type

Parameter Notes

Description

Input File

FileSystemPath

The input .ang file path

Output Image Geometry

Parameter Name

Parameter Type

Parameter Notes

Description

Image Geometry

DataGroupCreation

The path to the created Image Geometry

Output Cell Attribute Matrix

Parameter Name

Parameter Type

Parameter Notes

Description

Cell Attribute Matrix

DataObjectName

The name of the cell data attribute matrix for the created Image Geometry

Output Ensemble Attribute Matrix

Parameter Name

Parameter Type

Parameter Notes

Description

Ensemble Attribute Matrix

DataObjectName

The Attribute Matrix where the phase information is stored.

Example Pipelines

  • INL Export

  • Export Small IN100 ODF Data (StatsGenerator)

  • Edax IPF Colors

  • Confidence Index Histogram

DREAM3D-NX Help

If you need help, need to file a bug report or want to request a new feature, please head over to the DREAM3DNX-Issues GitHub site where the community of DREAM3D-NX users can help answer your questions.