/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        

Definitions

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'ΛZ'
    Y' is recomputed as: (2)
    Y=ZΛX

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


    fixed_ref_frame
    Figure 1.