How to change the line width for fplot?

602 vues (au cours des 30 derniers jours)
Amit Kumar
Amit Kumar le 8 Mai 2014
Commenté : 帅 赵 le 11 Juil 2021
Hello All,
I want to make lines in graph thicker. Here is my code, but it seems not working.
clear all;
close all
clc;
w1=0;
w2=16.73;
x1= @(t) 0.05*cos(w1.*t)-0.05*cos(w2.*t);
x2= @(t) 0.05*cos(w1.*t)+0.05*cos(w2.*t);
graph1 = plot(figure1);
set(graph1,'LineWidth',2);
fplot(x1,[0,2],'k');
hold on;
fplot(x2,[0,2],'--k');
hold off;
legend('x','y');
title('plot');
xlabel('t');
ylabel('d');
I am increasing the linewidth, but messing up somewhere. In plot command, you can straightaway write 'LineWidth' in plot() itself, but no so in fplot. Any comments where I messed up?
  1 commentaire
Abby Skofield
Abby Skofield le 16 Oct 2018
Have you tried setting LineWidth directly in the call to fplot? Both plot and fplot support Name,Value pairs like LineWidth, as in:
x1= @(t) 0.05*cos(w1.*t)-0.05*cos(w2.*t);
fplot(x1,[0,2],'k','LineWidth',2);
hold on
plot(0:0.1:2,sin(0:0.1:2)/10,'k','LineWidth',2);

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Réponse acceptée

lvn
lvn le 8 Mai 2014
Modifié(e) : MathWorks Support Team le 27 Nov 2018
Starting in R2016a, you can specify the 'LineWidth' property the same way you do for plot. For example:
>> fplot(x1,[0,2],'k','LineWidth',2);
In R2015b and earlier releases, you have to search for the object and set the line width. To set the widths of all the lines to 2:
>> set(findall(gca, 'Type', 'Line'),'LineWidth',2);
Or, to set the width of one line:
>> set(findobj(gca, 'Type', 'Line', 'Linestyle', '--'), 'LineWidth', 2);
  1 commentaire
帅 赵
帅 赵 le 11 Juil 2021
I can't make changes through set, But I can add parameters in setting with fplot

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Plus de réponses (1)

the cyclist
the cyclist le 8 Mai 2014
One way is to use fplot() to get the (x,y) values, then use plot() to do the plotting and then adjusting properties via the plot handles.
clear all;
close all
clc;
w1=0;
w2=16.73;
x1= @(t) 0.05*cos(w1.*t)-0.05*cos(w2.*t);
x2= @(t) 0.05*cos(w1.*t)+0.05*cos(w2.*t);
[xx1,yy1] = fplot(x1,[0,2],'k');
[xx2,yy2] = fplot(x2,[0,2],'--k');
hold on
h1 = plot(xx1,yy1,'k');
h2 = plot(xx2,yy2,'k');
hold off;
set([h1 h2],'LineWidth',2)
legend('x','y');
title('plot');
xlabel('t');
ylabel('d');
  1 commentaire
Satyam Anumalla
Satyam Anumalla le 1 Jan 2021
Thank you. Linewidth working well

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