![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/597365/image.png)
Draw a curve in matlab figure
20 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
I need to draw a curve for illustration purposes in a figure together with some other more specific values. I'm looking for something like this:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/596945/image.jpeg)
I need it to be smooth like that one, and have the ability to adjust it. How could i do that?
2 Commenti
DGM
il 26 Apr 2021
Modificato: DGM
il 26 Apr 2021
If you have a few waypoints, you might just be able to do something like this:
x = [0 1 2 2.5 3 4 5 6 6.2 7 8];
y = [0 0.5 1 0.95 0.65 0.25 0.8 1.3 1.3 0.7 0.1];
xf = linspace(0,8,100);
yf = interp1(x,y,xf,'spline');
plot(xf,yf)
axis equal
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/597365/image.png)
There are also ROI drawing tools (drawfreehand, imfreehand), but I don't know how you'd easily go about making such an object into an open curve. Depending on how it needed to be integrated into the figure content, I'd probably just export the figure and add the curve in an image editor that can do practical bezier curves interactively.
Risposta accettata
Jan
il 26 Apr 2021
figure;
x = linspace(0, 2*pi, 1000);
y = sin(x).^2 + sin(x / 2).^2 .* x / 10;
plot(x, y)
Più risposte (0)
Vedere anche
Categorie
Scopri di più su Interpolation 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!