Plot set of orientations in orientation plotter
Show Orientation of Oscillating Device
This example shows how to animate the orientation of an oscillating device.
rpy_9axis.mat. The data in
rpy_9axis.mat is recorded accelerometer, gyroscope, and magnetometer sensor data from a device oscillating in pitch (around y-axis), then yaw (around z-axis), then roll (around x-axis). The device's x-axis was pointing southward when recorded.
ld = load('rpy_9axis.mat')
ld = struct with fields: Fs: 200 sensorData: [1x1 struct]
Set the sampling frequency. Extract the accelerometer and gyroscope data. Set the decimation factor to 2. Use
fuse to create an indirect Kalman sensor fusion filter from the data.
accel = ld.sensorData.Acceleration; gyro = ld.sensorData.AngularVelocity; Fs = ld.Fs; decim = 2; fuse = imufilter('SampleRate',Fs,'DecimationFactor',decim);
Obtain the pose information of the fused data.
pose = fuse(accel,gyro);
Create a theater plot. Add to the theater plot an orientation plotter with
'DisplayName' set to
'Fused Data' and
'LocalAxesLength' set to
tp = theaterPlot('XLimit',[-2 2],'YLimit',[-2 2],'ZLimit',[-2 2]); op = orientationPlotter(tp,'DisplayName','Fused Data',... 'LocalAxesLength',2);
Loop through the pose information to animate the changing orientation.
for i=1:numel(pose) plotOrientation(op, pose(i)) drawnow end
oPlotter — Orientation plotter
Orientation plotter, specified as an
orientations — Orientations
quaternion array | real-valued array
Orientations of M objects, specified as either an M-by-1 array of quaternions, or a 3-by-3-by-M array of rotation matrices.
yaw — Roll, pitch, yaw
Roll, pitch, and yaw angles defining the orientations of M objects, specified as M-by-1 vectors. Angles are measured in degrees.
positions — Object positions
[0 0 0] (default) | real-valued matrix
Object positions, specified as an M-by-3 real-valued matrix,
where M is the number of objects. Each column of the matrix
corresponds to the x-, y-, and
z-coordinates of the objects locations in meters. The default value
positions is at the origin.
labels — Object labels
Object labels, specified as a M-by-1 cell array of character
vectors, where M is the number of objects.
labels contains the text labels corresponding to the
M objects specified in
labels is omitted, no labels are plotted.
Introduced in R2018b