![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/235264/image.png)
How to color some region of plot?
211 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
Enrica Brunetti
el 25 de Ag. de 2019
Editada: Afiq Azaibi
el 17 de Mzo. de 2023
If I have this plot
y = [70, 72, 60, 66, 60, 57, 59, 58, 60, 73, 72, 73, 73, 72, 52, 72, 77, 59, 49, 66];
x = [1: 20];
what function can I use to color some region of plot, when for example y(i) > 70?
0 comentarios
Respuesta aceptada
Image Analyst
el 25 de Ag. de 2019
Editada: Image Analyst
el 25 de Ag. de 2019
Try this,using patch():
% Plot original data.
y = [70, 72, 60, 66, 60, 57, 59, 58, 60, 73, 72, 73, 73, 72, 52, 72, 77, 59, 49, 66];
x = [1: 20];
plot(x, y, 'b*-');
grid on;
hold on;
% Make patch of transparent color.
yl = ylim
xl = xlim
xBox = [xl(1), xl(1), xl(2), xl(2), xl(1)]
yBox = [70, yl(2), yl(2), 70, 70]
patch(xBox, yBox, 'black', 'FaceColor', 'green', 'FaceAlpha', 0.1);
hold off;
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/235264/image.png)
4 comentarios
Afiq Azaibi
el 17 de Mzo. de 2023
Editada: Afiq Azaibi
el 17 de Mzo. de 2023
In addition to Image Analyst's solution, starting in R2023a you can use the xregion and yregion functions.
y = [70, 72, 60, 66, 60, 57, 59, 58, 60, 73, 72, 73, 73, 72, 52, 72, 77, 59, 49, 66];
x = [1: 20];
plot(x, y, 'b*-');
yregion(70,80,"FaceColor", 'g'); % Note, 80 is the end point so if you pan past 80, the region will stop.
yregion(45, 70, "FaceColor", 'r');
You can also set the EdgeColor properties to emphasize the edges but the default EdgeColor is 'none'.
Más respuestas (0)
Ver también
Categorías
Más información sobre Lighting, Transparency, and Shading en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!