Plot Label, Tile and Legend at the same time of the live plot

I have a live scatter 3D plot that plots a two sets of scatter together.

Right now with this code the label, legend and title are just showing at the end.

How can I plot these all together with the scatter and not just at the end?

Please note that the scatter are plotting just a datset of the cell for each time instant, without showing the previous one, I would like to keep it.

I tried several combinations of hold on and hold off but I didn't manage to do it.

figure;
for i=1:numel(Coordinates(:,1))
    view(3)
    set(gcf, 'Color', 'White');
    set(gca, 'Fontsize', 12);
    scatter3(DD{i}(:,2),DD{i}(:,3),DD{i}(:,4), 'b', 'filled')
    hold on;
    scatter3(Coordinates{i,1},Coordinates{i,2},Coordinates{i,3}, 'k', 'filled')
    hold off;
    grid on; grid minor;
    axis equal;
    set(gca, 'ZDir','reverse');
    drawnow;
    pause(0.001);
    xlabel('x [mm]')
    ylabel('y [mm]')
    zlabel('z [mm]')
    legend('STB','7DOF Fit')
    title(['Time = ', num2str(round(DD{i}(1,1),2)), ' s'])
end

Please let me know.

Answer 1

[Cris LaPierre]

I would rearrange your code to set everythign up before entering the for loop, and then in the loop, just update the plot data. It might look something like this (untested)

figure;
figure;
s1 = scatter3(nan,nan,nan, 'b', 'filled');
hold on;
s2 = scatter3(nan,nan,nan, 'k', 'filled');
hold off;

xlabel('x [mm]')
ylabel('y [mm]')
zlabel('z [mm]')
legend('STB','7DOF Fit')
view(3)
set(gcf, 'Color', 'White');
set(gca, 'Fontsize', 12);
grid on; grid minor;
axis equal;
set(gca, 'ZDir','reverse');

for i=1:numel(Coordinates(:,1))
    title(['Time = ', num2str(round(DD{i}(1,1),2)), ' s'])
    s1.XData = DD{i}(:,2);
    s1.YData = DD{i}(:,3);
    s1.ZData = DD{i}(:,4);
    
    s2.XData = Coordinates{i,1};
    s2.YData = Coordinates{i,2};
    s2.ZData = Coordinates{i,3};
    
    drawnow;
    pause(0.001);
end

[Cris LaPierre]

If you want to add the new data to the previously displayed data rather than replace it, just append the new data to the existing plot data. maybe something like this (Untested. I'm assuming vertical concatenation because the data appears to be a column vector).

s1.XData = [s1.XData; DD{i}(:,2)];

[Fabio Taccaliti]

Thanks Cris for the answer

Unfortunately I have this error that I don't know how to fix it

X data must be a vector.

Error in matlab.graphics.chart.primitive.internal.AbstractScatter/validateDataPropertyValue

Error in matlab.graphics.chart.primitive.Scatter/validateDataPropertyValue

Error in matlab.graphics.chart.primitive.internal.AbstractScatter/set.XData

Error in Plots_Winglet (line 273)

s2.XData = Coordinates{i,1};

Btw my cell are DD 102x1 cell and Coordinates 102x3 cell

[Cris LaPierre]

The error appears to be with Coordinates, specifically that Coordinates{i,1} does not return a vector. What are the contents of each cell? You may have to decide what makes the most sense here as you are most familiar with your data. One possible solution is to turn the result into a vector using this syntax

s2.XData = Coordinates{i,1}(:);

[Fabio Taccaliti]

Yesss, now is working! Thanks Cris :)

Coordinates was 102x3 cell with each 14x4 double.