User guide

Charnwood Dynamics Ltd. Coda cx1 User Guide – Reference IV-3
CX1 USER GUIDE - COMPLETE.doc 26/04/04 148/162
Coordinates
The assumed sense of coordinates is:
X: horizontal (parallel to the direction of travel of the subject) (parallel to Coda).
Y: horizontal (perpendicular to the direction of travel) (distance from Coda).
Z: vertical, positive upwards.
There is no significant effect if the X and Y coordinates are swapped or inverted.
Stick-figure Views will appear rotated if the ‘Z’ coordinates are not the vertical up direction.
The coordinate system is right-handed.
Example Text data:
First 20 lines; not all columns shown:
CODAmotion Analysis Text
Motion Analysis Text Save of: DEMO1.MDF [DEMO1.STP]
Time Markers ForcePlate
Time RKnee.X RKnee.Y RKnee.Z ...
RHeel.X RHeel.Y RHeel.Z RToe.X RToe.Y RToe.Z Force.1 Force.2 ... Force.8
(s) (mm) (mm) (mm) ... (mm) (mm) (mm) (mm) (mm) (mm) (N) (N) ... (N)
1.10000 58.67 -144.38 347.51 ... -48.15 -122.04 3.32 85.20 -151.32 5.42 14.00 -13.15 ... 9.00
1.10500 60.72 -145.00 347.06 ... -48.17 -122.04 3.30 85.18 -151.37 5.39 13.30 -12.95 ... 8.35
1.11000 62.65 -145.66 346.64 ... -48.17 -122.05 3.29 85.15 -151.42 5.35 12.45 -12.90 ... 7.70
1.11500 64.48 -146.37 346.25 ... -48.19 -122.08 3.30 85.13 -151.51 5.29 11.60 -12.95 ... 6.45
1.12000 66.21 -147.11 345.88 ... -48.20 -122.12 3.32 85.12 -151.61 5.22 10.70 -13.05 ... 5.80
1.12500 67.80 -147.90 345.52 ... -48.23 -122.17 3.33 85.12 -151.71 5.15 9.80 -13.05 ... 5.15
1.13000 69.29 -148.69 345.18 ... -48.24 -122.23 3.36 85.12 -151.82 5.07 9.80 -13.05 ... 5.15
1.13500 70.66 -149.49 344.86 ... -48.30 -122.30 3.40 85.12 -151.94 4.98 9.00 -12.75 ... 4.50
1.14000 71.90 -150.30 344.54 ... -48.36 -122.38 3.43 85.12 -152.07 4.93 8.25 -12.40 ... 3.85
1.14500 73.01 -151.10 344.23 ... -48.43 -122.45 3.47 85.12 -152.21 4.87 7.60 -12.00 ... 3.20
1.15000 73.99 -151.89 343.94 ... -48.51 -122.51 3.53 85.11 -152.33 4.80 6.95 -11.40 ... 3.20
1.15500 74.86 -152.69 343.64 ... -48.61 -122.58 3.60 85.09 -152.45 4.76 6.40 -10.85 ... 1.90
1.16000 75.61 -153.46 343.35 ... -48.69 -122.62 3.67 85.06 -152.58 4.72 5.90 -10.25 ... 2.55
1.16500 76.29 -154.22 343.08 ... -48.79 -122.65 3.77 85.04 -152.70 4.66 5.40 -9.55 ... 1.90
1.17000 76.90 -154.96 342.83 ... -48.87 -122.66 3.86 84.99 -152.81 4.61 5.00 -8.85 ... 1.25