3.3.1.38. NXorientation¶
Status:
base class, extends NXobject
Description:
legacy class - recommend to use :ref:`NXtransformations` now ...
legacy class - recommend to use NXtransformations now
Description for a general orientation of a component - used by NXgeometry
Symbols:
No symbol table
- Groups cited:
Structure:
@default: (optional) NX_CHAR
Declares which child group contains a path leading ...
Declares which child group contains a path leading to a NXdata group.
It is recommended (as of NIAC2014) to use this attribute to help define the path to the default dataset to be plotted. See https://www.nexusformat.org/2014_How_to_find_default_data.html for a summary of the discussion.
value: (optional) NX_FLOAT (Rank: 2, Dimensions: [numobj, 6]) {units=NX_UNITLESS}
The orientation information is stored as direction cosines. The direction cosi ...
The orientation information is stored as direction cosines. The direction cosines will be between the local coordinate directions and the reference directions (to origin or relative NXgeometry). Calling the local unit vectors (x’,y’,z’) and the reference unit vectors (x,y,z) the six numbers will be [x’ dot x, x’ dot y, x’ dot z, y’ dot x, y’ dot y, y’ dot z] where “dot” is the scalar dot product (cosine of the angle between the unit vectors). The unit vectors in both the local and reference coordinates are right-handed and orthonormal.
The pair of groups NXtranslation and NXorientation together describe the position of a component.
GEOMETRY: (optional) NXgeometry
Link to another object if we are using relative positioning, else absent
Hypertext Anchors¶
List of hypertext anchors for all groups, fields, attributes, and links defined in this class.
