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  • z_*OBSOLETE* Calculate Rigid Body Motion in Matlab

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Note: The number of columns must be a perfect match between the two files.
if you have 10 markers - you must have 30 columns in both files.

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You

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can filter *xyzpts data prior to calculating rigid body motion (read Filtering Data for background information on filtering)

Filter Procedure

  1. type butterBatch at the matlab prompt (or press the filterXYZ button on the XrayProject Window)
  2. enter the cutoff frequency, recording frequency (i.e. frame rate), and filter type
    Note: it is important to enter your correct frame rate. The default is 250 frames per second. It is also important to select an appropriate cutoff frequency; generally 5 to 10 times greater than the frequency of the motion in your videos
  3. select 1 or more files to process
  4. Original and filtered data will be plotted for the first data file
  5. files are saved in the original directory with BUTTER## appended to the
    end of the original file name. The ## specifies the cutoff frequency

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