2.3.3.3.155. NXms_odf

Status:

base class, extends NXprocess

Description:

Base class to store an orientation distribution function (ODF) computation.

Symbols:

n_varphi_one: Number of pixel per varphi section plot along the varphi_one fastest direction.

n_capital_phi: Number of pixel per varphi section plot along the capital_phi slow direction.

n_varphi_two: Number of pixel per varphi section plot along the varphi_two slowest direction.

k: Number of local maxima evaluated in the component analysis.

Groups cited:

NXdata, NXobject

Structure:

configuration: (optional) NXobject

Details about the algorithm used for computing the ODF.

crystal_symmetry_point_group: (optional) NX_CHAR

Point group of the crystal structure (International Table of Crystallography ...

Point group of the crystal structure (International Table of Crystallography) of the phase for which the here documented phase-dependent ODF was computed.

specimen_symmetry_point_group: (optional) NX_CHAR

Point group assumed for processing-induced *sample symmetries*. ...

Point group assumed for processing-induced sample symmetries. (according to International Table of Crystallography).

kernel_halfwidth: (optional) NX_NUMBER {units=NX_ANGLE}

Halfwidth of the kernel.

kernel_name: (optional) NX_CHAR

Name of the kernel.

resolution: (optional) NX_NUMBER {units=NX_ANGLE}

Resolution of the kernel.

kth_extrema: (optional) NXobject

kth: (optional) NX_UINT {units=NX_UNITLESS}

Number of local maxima evaluated for the ODF.

location: (optional) NX_NUMBER (Rank: 2, Dimensions: [k, 3]) {units=NX_ANGLE}

Euler angle representation of the kth-most maxima of the ODF ...

Euler angle representation of the kth-most maxima of the ODF in decreasing order of the intensity maximum.

theta: (optional) NX_NUMBER {units=NX_ANGLE}

Disorientation threshold within which intensity of the ODF ...

Disorientation threshold within which intensity of the ODF is integrated for the component analysis.

volume_fraction: (optional) NX_NUMBER (Rank: 1, Dimensions: [k]) {units=NX_ANY}

Integrated ODF intensity within a theta-ball of SO3 about ...

Integrated ODF intensity within a theta-ball of SO3 about each location as specified for each location in the order and reported in the order of these locations.

phi_two_plot: (optional) NXdata

Visualization of the ODF intensity as orthogonal sections through Euler space. ...

Visualization of the ODF intensity as orthogonal sections through Euler space.

This is one example of typical default plots used in the texture community in Materials Engineering.

Mind that the Euler space is a distorted space. Therefore, equivalent orientations show intensity contributions in eventually multiple locations.

intensity: (optional) NX_NUMBER (Rank: 3, Dimensions: [n_varphi_two, n_capital_phi, n_varphi_one]) {units=NX_DIMENSIONLESS}

ODF intensity at probed locations relative to ...

ODF intensity at probed locations relative to null model of a completely random texture.

varphi_one: (optional) NX_NUMBER (Rank: 1, Dimensions: [n_varphi_one]) {units=NX_ANGLE}

Pixel center angular position along the \(\varphi_1\) direction.

varphi_two: (optional) NX_NUMBER (Rank: 1, Dimensions: [n_varphi_two]) {units=NX_ANGLE}

Pixel center angular position along the \(\varphi_2\) direction.

capital_phi: (optional) NX_NUMBER (Rank: 1, Dimensions: [n_capital_phi]) {units=NX_ANGLE}

Pixel center angular position along the \(\Phi\) direction.

Hypertext Anchors

List of hypertext anchors for all groups, fields, attributes, and links defined in this class.

NXDL Source:

https://github.com/FAIRmat-NFDI/nexus_definitions/tree/fairmat/contributed_definitions/NXms_odf.nxdl.xml