Find Kernel Average Misorientations

Group (Subgroup)

Statistics (Crystallographic)

Description

This Filter determines the Kernel Average Misorientation (KAM) for each Cell. The user can select the size of the kernel to be used in the calculation. The kernel size entered by the user is the radius of the kernel (i.e., entering values of 1, 2, 3 will result in a kernel that is 3, 5, and 7 Cells in size in the X, Y and Z directions, respectively). The algorithm for determination of KAM is as follows:

  1. Calculate the misorientation angle between each Cell in a kernel and the central Cell of the kernel
  2. Average all of the misorientations for the kernel and store at the central Cell

Note: All Cells in the kernel are weighted equally during the averaging, though they are not equidistant from the central Cell.

Parameters

Name Type Description
Kernel Radius int32_t (3x) Size of the kernel in the X, Y and Z directions (in number of Cells)

Required Geometry

Image

Required Objects

Kind Default Name Type Component Dimensions Description
Cell Attribute Array FeatureIds int32_t (1) Specifies to which Feature each Cell belongs
Cell Attribute Array Phases int32_t (1) Specifies to which Ensemble each Cell belongs
Cell Attribute Array Quats float (4) Specifies the orientation of the Cell in quaternion representation
Ensemble Attribute Array CrystalStructures uint32_t (1) Enumeration representing the crystal structure for each Ensemble

Created Objects

Kind Default Name Type Component Dimensions Description
Cell Attribute Array KernelAverageMisorientations float (1) Average misorientation for all Cells within the kernel and the central Cell

Example Pipelines

  • MassifPipeline
  • (05) SmallIN100 Crystallographic Statistics

Please see the description file distributed with this Plugin

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