CV:OPOS2: Difference between revisions

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| atoms specifying the point '''A'''
| atoms specifying the point '''A'''
|-  style="vertical-align: top;"
|-  style="vertical-align: top;"
| '''z_direction'''
| '''reference_a'''
| string
|
| name of the file with the reference structure in the XYZ format, the structure must have the same number of atoms as the group '''group_a'''
|-
| '''group_b'''
| [[Mask format|mask]]
| [[Mask format|mask]]
|
|
| single atom specifying the end of approximate z-direction vector of the re-oriented coordinate system. The vector origin is in '''A'''<sub>com</sub>. The atom must be member of the group '''A'''.
| atoms specifying the point '''B'''
|-
|-
| '''direction'''
| '''direction'''
| x, y, z
| x, y, z
|
|
| determine direction of z-axis in the re-oriented coordinate system
| select axis in the superimposed coordinate system
|}
|}
''Keys in bold are mandatory.''
''Keys in bold are mandatory.''

Revision as of 14:50, 21 July 2021

Navigation: Documentation / Collective Variables / CV:OPOS2


Distance

Angle

Coordination

Shape

Nucleic Acids

Puckering

Special

Energy

Algebra

Definition

The absolute position of the point along z-axis of re-oriented coordinate system along principal moments of the tensor inertia I.

Failed to parse (Conversion error. Server ("cli") reported: "[INVALID]"): {\displaystyle \xi = A_{com,z}^'}

The z-axis can be reoriented to any axis of the re-oriented coordinate system.

The relation between re-oriented (') and native coordinate system is given by the transformation matrix T:

Failed to parse (Conversion error. Server ("cli") reported: "[INVALID]"): {\displaystyle \bold A_{com}^' = \bold T \bold A_{com}}


Specification

Section name: OPOS

Key Type Default Description




name string unique CV name
group_a mask atoms specifying the point A
reference_a string name of the file with the reference structure in the XYZ format, the structure must have the same number of atoms as the group group_a
group_b mask atoms specifying the point B
direction x, y, z select axis in the superimposed coordinate system

Keys in bold are mandatory.