How to change color of lines on legend?
494 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
Mahdi Torabi
il 14 Lug 2018
Commentato: Walter Roberson
il 1 Mag 2020
Is there any way to change the color of lines in the legend AFTER plotting the graph(like using Edit\axes properties)?
4 Commenti
Walter Roberson
il 14 Lug 2018
You could record the handle of the first of each type, and then pass that vector of handles as the first argument to legend().
Or you could do something like
L(1) = plot(nan, nan, 'b-');
L(2) = plot(nan, nan, 'r--');
legend(L, {'first case', 'second case'})
Risposta accettata
Mahdi Torabi
il 14 Lug 2018
Modificato: Matt J
il 14 Lug 2018
2 Commenti
Matt J
il 14 Lug 2018
This gives an error,
Error using legend>process_inputs (line 554)
Invalid argument. Type 'help legend' for more information.
Error in legend>make_legend (line 306)
[autoupdate,orient,location,position,children,listen,strings,propargs] = process_inputs(ha,argin); %#ok
Error in legend (line 259)
make_legend(ha,args(arg:end),version);
Walter Roberson
il 15 Lug 2018
Turns out you just need
hold on
to be in effect, as otherwise the second plot() clears the axes.
Più risposte (1)
Matt J
il 14 Lug 2018
Modificato: Matt J
il 14 Lug 2018
This might be what Walter meant,
t=linspace(0,1,10);
L(1:2) = plot(t,exp(-t), 'r--',nan,nan,'k--');hold on
L(3:4) = plot(t,1-exp(-t), 'g^-',nan,nan,'m^-'); hold off
legend(L([2,4]), 'Red','Green')
2 Commenti
Walter Roberson
il 1 Mag 2020
plot(nan,nan) with appropriate line style and color, once for each different thing you want to appear in the legend, recording the handle that is returned. Then when you call legend(), pass that array of handles in as the first parameter to legend()
Vedere anche
Categorie
Scopri di più su Legend 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!