highlight plot with circle

1 次查看（过去 30 天）

显示更早的评论

mudasir ahmad sheikh 2021-8-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1438394-highlight-plot-with-circle

评论： Image Analyst 2021-8-23

采纳的回答： Awais Saeed

I have a ber plot and I want to highlight this plot with a circle or any eliptical shape indicating (M×N).

2 个评论
显示无隐藏无

Awais Saeed 2021-8-22

What do you mean by higlighting with circle. Do you mean like this

mudasir ahmad sheikh 2021-8-22

No! Please see the attached figure

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Awais Saeed 2021-8-22

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1438394-highlight-plot-with-circle#answer_772189

I do not know if its possible programmatically but you can acheive this using the Insert option of figure window

2 个评论
显示无隐藏无

mudasir ahmad sheikh 2021-8-22

Thanks Awaise.

Awais Saeed 2021-8-22

you are welcome.

请先登录，再进行评论。

更多回答（1 个）

Image Analyst 2021-8-22

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1438394-highlight-plot-with-circle#answer_772344

在 MATLAB Online 中打开

You can draw an ellipse if you know the center and radii:

https://matlab.fandom.com/wiki/FAQ#How_do_I_create_an_ellipse.3F

xCenter = 12.5;
yCenter = 10;
xRadius = 2.5;
yRadius = 8;
theta = 0 : 0.01 : 2*pi;
x = xRadius * cos(theta) + xCenter;
y = yRadius * sin(theta) + yCenter;
plot(x, y, 'LineWidth', 3);
axis square;
xlim([0 20]);
ylim([0 20]);
grid on;

If you have an existing plot, call hold on before plotting the ellipse so it doesn't blow away your prior plotted data.

2 个评论
显示无隐藏无

mudasir ahmad sheikh 2021-8-23

Thanks

Image Analyst 2021-8-23

@mudasir ahmad sheikh, you're welcome. Also I'm attaching a bunch of ellipse demos that you may find fun or interesting. You can "Vote" for my answer if they help you.

请先登录，再进行评论。

请先登录，再回答此问题。