Draw the trail of a moving marker on an animated 2D plot

41 visualizzazioni (ultimi 30 giorni)
Hi everyone!
So, I'm creating a 2D plot where the marker moves from one point to another (nothing fancy, just pausing the plot). Code in question is something similar to this.
A = rand(1800,1);
B = rand(1800,1); % I'm just using dummy values here but my actual program has similar outputs (1800 x 1 double)
for i=1:1800
plot (A(i),B(i), 'd', 'MarkerSize', 5, 'MarkerFaceColor', 'k')
axis ([-10 10 -10 10])
pause (0.1)
end
What I'm trying to achieve now is, however, the trail of the marker. When the marker goes from point 1 to 2 (for instance) I want it to leave a trail. So at the end of the day, there will be a plotted graph. How can I approach this?
Also, I'd appreciate any pointers or easier methods for this than using a for loop, if there is one :)
Thanks in advance!

Risposta accettata

KSSV
KSSV il 5 Ago 2020
Modificato: KSSV il 5 Ago 2020
A = rand(1800,1);
B = rand(1800,1); % I'm just using dummy values here but my actual program has similar outputs (1800 x 1 double)
for i=1:1800
plot (A(i),B(i), 'd', 'MarkerSize', 5, 'MarkerFaceColor', 'k')
hold on
plot(A(1:i),B(1:i),'r')
hold off
axis ([-10 10 -10 10])
pause (0.1)
end
  3 Commenti
KSSV
KSSV il 5 Ago 2020
You can use the function comet. This is good.
Jake
Jake il 5 Ago 2020
Ah yes. Just looked over the documentation and seems like that should be my option. Thanks!

Accedi per commentare.

Più risposte (0)

Categorie

Scopri di più su Animation in Help Center e File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by