#Scramble data set matlab series#

Order rotations applied: azimuth, elevation.

For standard direction coding (see at top), that means 0 = facing out of the screen, +90 = facing right on screen, −90 = facing left on screen. azimuth elevationĭefaults: facing out of screen (for standard data) azimuth is horizontal angle from + x to + y axis in the motion data (deg). sizeMult is useful when you want to preserve relative sizes between different walker data sets by setting it equal across different walker elements. Note for mm data this disregards any size factor in data(end,2). the conversion factor has units deg visual angle / data distance units, and just multiplies the motion data. SizeMult is a conversion factor from whatever distance units the motion data is in (commonly mm) to deg visual angle. Here height is the greatest vertical distance ( z axis in the motion data) spanned by dots across time. height sizeMultĭefaults: show at 10 deg height Set either height (absolute size) or sizeMult (relative size): fitting all markers and times within height below). Note for both nn_markers and times, you can also leave the property at default and use showMarkers/ showTimes below instead to show only part of the motion data while still using all of it for purposes like sizing and positioning the display (e.g. t1 = 0 = start of file, t2 = inf = end of file. Times (md/C3D data only): This is a vector (sec) to load only a specific time range in the motion data. nn_markers is a row vector of marker numbers to load only specific markers from the motion data. Note to change the speed of motion you can just use property speed below. = 120 hz for mm/md data, or read from file for C3D data.

e.g.įileName = 'data.c3d' → data in file data.c3dįileName = 'data.mat' → mm/md data in file data.mat, which contains only one data setįileName = 'bmlWalkerData.mat' dataExpr = 'bmlWalkerData' → mm/md data in cell 2 of cell array bmlWalkerData in base MATLAB workspace fps is frame rate the motion data was recorded at (frames/sec). mat file containing multiple data sets, or to get a data set from the base MATLAB workspace. You can use this to specify which one to load from a. = get mm/md data from the base MATLAB workspace.ĭataExpr is a string that is variable name and possibly indexes/field names containing an mm/md data set. mat file, the file can contain multiple mm/md data sets-if so, use dataExpr below to specify which one to load. Include path if the file is not in the MATLAB current folder or search path (or not the first file with that name on the search path). Data must be in BML mm or md format or C3D format (see above).įileName is a string that is name of a. No defaults: fileName, dataExpr Default: fps = 120 frames/sec (mm/md data), or frame rate loaded from file (C3D data) Default: nn_markers = load all markers in the motion data Default: times = load whole motion data Set one or both of fileName/ dataExpr to specify the marker motion data to use. However, if you need to avoid them completely, you can set property backColor = 'opaque'. Minor artifacts at dot edges may be caused by the element display's default transparent background. Some example mm/md data in a file called bmlWalkerData.mat as well as an example. Most commonly you may want to use property azimuth to orient it differently in the x/ y directions.

For all formats, by default data is displayed with its x axis pointing out of the screen, y right, and z up. Again markers are Cartesian coordinate time series. c3d file using the popular C3D biomechanical data format. Data are a 3D numeric array: frames (rows) × markers (columns) × 3 coords.

#Scramble data set matlab series#

md ('motion data')Ī marker Cartesian coordinate time series for any motion. (2008): Retrieving information from human movement patterns. Last row: period (frames), size factor, translation speed (data distance units/frame)įor details see Troje, N.F. Rows: Ĭolumns: mean marker positions, harmonic 1 cos, sin, harmonic 2 cos, sin. Data are a 2D matrix with size 3× numMarkers+1 rows × 1+ numHarmonics×2 columns: Each element is based on marker motion data in BML mm or md format, or C3D format: mm ('motion model')Īn efficient Fourier encoding for periodic motion (e.g. Or a mask based on scrambled marker positions replicated out to any number of dots. A point-light (marker) biological motion display.