Insert text to the image in for loop

11 visualizzazioni (ultimi 30 giorni)
Hi,
I am trying to insert text to the series of images being generated for each iteration in for loop. For instance, lets say for f = 1:1:200, at f = 1 ieration i need to insert text of t = 0 s likewise t = 0.0002 s, t = 0.0004 s, t = 0.0006s for f = 2, 3, 4 ans so on respectively..
Please help me with this..
  2 Commenti
KSSV
KSSV il 14 Mag 2021
Read about text.
Turbulence Analysis
Turbulence Analysis il 14 Mag 2021
I did tried as follows, but text getting overlapped on each image !!
for g = 0:0.00002:0.04
text(25,-35,['t= ',sprintf('%d',g)])
end

Accedi per commentare.

Risposta accettata

Rik
Rik il 14 Mag 2021
Modificato: Rik il 14 Mag 2021
Instead of recreating graphics object every iteration of your loop, it is often faster to create the object once and then update the properties:
text_handle=text(25,-35,'');
for g = 0:0.00002:0.04
text_handle.String=sprintf('t= %.5f',g);
drawnow % force graphics update
end
  3 Commenti
Rik
Rik il 14 Mag 2021
Modificato: Rik il 14 Mag 2021
Ah, yes, sorry. I had at first set it print a 0 that way when initializing the object. I'll edit my answer. (you'll also have to change the FormatSpec to print the actual values, instead of telling Matlab to treat your values as integers)
Did this solve your question? If so, please consider marking it as accepted answer. If not, feel free to post a comment with your remaining issues.
Turbulence Analysis
Turbulence Analysis il 15 Mag 2021
Yes.. I have sorted the issue..
I am using as follows, now its better
t = 0.0002 * (i);
text(5,-35,[sprintf('t = %g s', t)],'FontSize',18,'Color','b','Interpreter','latex');

Accedi per commentare.

Più risposte (0)

Categorie

Scopri di più su Graphics Performance 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