/FRAME/FIX

Block Format Keyword Describes the frames.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
/FRAME/FIX/frame_ID/unit_ID
frame_title
Ox Oy Oz        
X1 Y1 Z1        
X2 Y2 Z2        

Definition

Field Contents SI Unit Example
frame_ID Reference frame identifier.

(Integer, maximum 10 digits)

 
unit_ID Unit Identifier

(Integer, maximum 10 digits)

 
frame_title Reference frame title

(Character, maximum 100 characters)

 
Ox X coordinate of frame origin O'

(Real)

[ m ]
Oy Y coordinate of frame origin O'

(Real)

[ m ]
Oz Z coordinate of frame origin O'

(Real)

[ m ]
X1 X component of frame axis Y '

(Real)

 
Y1 Y component of frame axis Y '

(Real)

 
Z1 Z component of frame axis Y '

(Real)

 
X2 X component of axis Z ' '

(Real)

 
Y2 Y component of axis Z '

(Real)

 
Z2 Z component of axis Z '

(Real)

 

Comments

  1. The reference frame identifier must be different from all skew identifiers.
  2. The reference frame is fixed and its directions are defined by Y ' and Z ' . Vectors of arbitrary length may be given.
  3. Input is Y ' axis and Z ' axis, but X' axis is computed as:(1)
    X = Y ' Λ Z '
    Y ' is recomputed as: (2)
    Y = Z Λ X

    Therefore, the new reference frame is defined by X , Y ', and Z ' .


    fixed_ref_frame
    Figure 1.