3D plot of kinect x,y,z data over time - question

Dear Matlab forum,

I recorded data with kinect sensors that gave me 19 columns of 220 consecutive rows for multiple subject.

The rows are filled filled with x, y and z data. The 19 columns in this dataset represent 19 different joint locations. I want to make a dynamical plot of the 19 joint points moving in x, y and z direction over time. I'm posting my situation in hope to gain insight on the methods you can recommend me to use. A simple and effective method might be most favorable in my situation.

I added the dataset of 1 subject, so you can display the situation.

Hope to hear from you!

-Jerome

[darova]

Can you please show your attempts? What have you tried?

[Jeroen Vermeulen]

I only plotted 2D until now, in my case X, Y and Z over time. I'm not very experienced on the topic of 3D plots over time, which is why I came to this forum, in hope to see what you would recommend. Hope to hear!

Answer 1

[darova]

I give a start

clc,clear
cla

A = xlsread('pp1_trial1.xls');
nn = 1:19;
X = A(:,nn);                    % read first 19 columns
Y = A(:,nn+19);
Z = A(:,nn+19*2);
cla
axis equal
    % set axis limits
xlim([min(X(:)) max(X(:))])
ylim([min(Y(:)) max(Y(:))])
zlim([min(Z(:)) max(Z(:))])

    % let's identificate some lines
    % hand-wrist-elbow-shoulder-spinShoulder-shoulder-elbow-wrist-hand
ind1 = [6 5 4 3 19 7 8 9 10];
hold on
for i = 1:size(X,1)
        % draw all points
    h(1) = plot3(X(i,:),Y(i,:),Z(i,:),'.r'); 
        % draw some lines
    h(2) = plot3(X(i,ind1),Y(i,ind1),Z(i,ind1),'-b'); 
    pause(0.1)          % wait a bit
    delete(h)           % delete all
end
hold off

[Jeroen Vermeulen]

Appreciated, thank you. I'll work on this method and will report back if I encounter problems.