3d track plot in Matlab (ex-embedded) Function block

Hi,

I connected x,y,z coordinates in my custom matlab function block and I used this code:

function out = fcn(x,y,z)
%#codegen

coder.extrinsic('plot3')
coder.extrinsic('grid')
coder.extrinsic('axis')
plot3(x,y,-z, 'or')
axis([0 1 -0.0001 0.0001 -1 0])
grid on

out = [x,y,z];

(with a Terminator block in the output port)

to plot a trajectory, but it plots a dot since it updates itself as one at a time. How can I draw a trajectory as track in the space (I want make it store previous coordinates) ?

Answer 1

[Azzi Abdelmalek]

Save your data to workspace, then plot what you want!

[Marco]

Ok, but in this way I don't see track during simulation; with saving/loading or To workspace block I should be wait for simulation end.

[Azzi Abdelmalek]

Then In your embedded function add

hold on

[Azzi Abdelmalek]

I think Embedded function don't support hold on comand, use instead Matlab function block

[Marco]

It supports! Thanks!