Change color of 2D plot line depending on 3rd value

Question

I have a data set that looks like this

 140400 70.7850 1
 140401 70.7923 2
 140402 70.7993 3
 140403 70.8067 4
 140404 70.8139 5
 140405 70.8212 3
         


        

Answer 1

When the result figure of two variables plotted is a circle, will be necessary to add the time in z axes.

For example the figure of induction machine rotor velocity vs electric torque in one laboratory test is: 2d plot figure

In the last figure the direction of the time point plotting could be clockwise or counter clockwise. For the last reason will be added time in z axis.

% Wr vs Te
x =  logsout.getElement( 'Wr' ).Values.Data; 
y =  logsout.getElement( '' ).Values.Data;
z =  logsout.getElement( '' ).Values.Time;
% % adapt variables for use surf function
xx = zeros( length( x ) ,2 );
yy = zeros( length( y ) ,2 );
zz = zeros( length( z ) ,2 );
xx (:,1) = x; xx (:,2) = x;
yy (:,1) = y; yy (:,2) = y;
zz (:,1) = z; zz (:,2) = z;
% % figure(1) 2D plot
figure (1)
hs = surf(xx,yy,zz,yy,'EdgeColor','interp') %// color binded to "y" values
colormap('hsv')
view(2) 
% %
figure(2)
hs = surf(xx,yy,zz,yy,'EdgeColor','interp') %// color binded to "y" values
colormap('hsv')
view(3) 

Finally we can view the 3d form and detect that counterwise is the real direction of the time plotting is: 3d plot