How to plot black line contours on an already plotted contourf plot?

20 次查看（过去 30 天）

Ron Nativ 2020-6-21

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/552130-how-to-plot-black-line-contours-on-an-already-plotted-contourf-plot

评论： darova 2020-6-21

Hello all,

I have two matrices with the same dimensions. I would like to plot the first one as a colored contourf plot. Then, I want to plot the second matrix as, say, black line contoures on the first plot. Using 'hold on' however does not work in this case as the first plot is simply being runned over. How can I do this?

At the moment I use the following for the first contourf plot

figure1 = figure('InvertHardcopy','off','Color',[1 1 1]);
Y = var1;
X = var2;
Z = velocity;
%
L = 100;
x = linspace(min(X),max(X),L);
y = linspace(min(Y),max(Y),L);
[Xi,Yi] = meshgrid(x,y);
Zi = griddata (X,Y,Z1,Xi,Yi);
contourf(Xi,Yi,Zi)

Thanks in advance,

Ron

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

darova 2020-6-21

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/552130-how-to-plot-black-line-contours-on-an-already-plotted-contourf-plot#answer_454912

在 MATLAB Online 中打开

This should be helpfull

[x,y,z] = peaks(20);
contourf(x,y,z,-6:2:6,'linew',2)
hold on
contour(x,y,z,[2 2],'r','linew',3)
hold off

6 个评论
显示 4更早的评论隐藏 4更早的评论

Ron Nativ 2020-6-21

At the moment, the second command (contour) indeed works, but then the first plot looses its filled colors. Why is this?

darova 2020-6-21

Impossible

请先登录，再进行评论。

请先登录，再回答此问题。

类别

MATLAB Graphics 2-D and 3-D Plots Contour Plots

在 Help Center 和 File Exchange 中查找有关 Contour Plots 的更多信息

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by