11.8. Compute Feature Neighbor C-Axis Misalignments

Group (Subgroup)

Statistics (Crystallography)

Description

For each feature, the C-Axis misalignments are determined for each neighbor of the feature. The neighbor list is a variable that is passed in by the user. This “NeighborList” could have been generated from any other appropriate filter. This means that a neighbor list could represent all neighbors that are physically connected to the current feature (Find Feature Neighbors), within a certain radius of the feature (Compute Feature Neighborhoods) or any other custom filter.

There are 2 outputs from this filter:

  • The list of misalignments

  • Optionally the average of all misalignments.

The misalignment values are stored as Degrees.

Notes

NOTE: Only features with identical phase values and a crystal structure of Hexagonal_High will be calculated. If two features have different phase values or a crystal structure that is not Hexagonal_High then a value of NaN is set for the misorientation.

Results from this filter can differ from its original version in DREAM.3D 6.5.171 by around 0.0001. This version uses double precision and Eigen for matrix operations which account for the differences in output.

Input Parameter(s)

Parameter Name

Parameter Type

Parameter Notes

Description

Find Average Misalignment Per Feature

Bool

Whether the average of the C-axis misalignments with the neighboring Features should be stored for each Feature

Input Feature Data

Parameter Name

Parameter Type

Parameter Notes

Description

Neighbor List

NeighborListSelection

List of the contiguous neighboring Features for a given Feature

Average Quaternions

Array Selection

Allowed Types: float32 Comp. Shape: 4

Defines the average orientation of the Feature in quaternion representation

Phases

Array Selection

Allowed Types: int32 Comp. Shape: 1

Specifies to which Ensemble each Feature belongs

Input Ensemble Data

Parameter Name

Parameter Type

Parameter Notes

Description

Crystal Structures

Array Selection

Allowed Types: uint32 Comp. Shape: 1

Enumeration representing the crystal structure for each Ensemble

Output Feature Data

Parameter Name

Parameter Type

Parameter Notes

Description

Feature C-Axis Misalignment NeighborList

DataObjectName

NeighborList of the C-axis misalignment angles (in degrees) with the contiguous neighboring Features for a given Feature

Feature Average C-Axis Misalignments

DataObjectName

Number weighted average of neighbor C-axis misalignments. Only created if Find Average Misalignment Per Feature is checked

Example Pipelines

EBSD_Hexagonal_Data_Analysis

DREAM3D-NX Help

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