How to plot the labels of contours

Question

Ivan Mich 2022-5-13

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1718335-how-to-plot-the-labels-of-contours

编辑： Ivan Mich 2022-5-16

采纳的回答： CHIRANJIT DAS

在 MATLAB Online 中打开

hello,

I would to ask about contours plot in matlab. I am using thefollowing commands in order to plot contours.

t=importdata('input.txt');
x=t(:,1);
y=t(:,2);
z=t(:,5);
[xi, yi] = meshgrid(...
    linspace(min(x),max(x)),...
    linspace(min(y),max(y)));
zi = griddata(x,y,z, xi,yi,'natural');
figure(1)
contourf(xi,yi,zi,15,'LineStyle','none')
set(gca,'ColorScale','log')
colormap(flipud(hot(50)))

The question is how could I plot the labels of the contours in my plot?

could you please help me?

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Answer 1

CHIRANJIT DAS 2022-5-13

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1718335-how-to-plot-the-labels-of-contours#answer_963180

编辑：CHIRANJIT DAS 2022-5-13

在 MATLAB Online 中打开

Just use contour and label them

figure(1)
contourf(xi,yi,zi,15,'LineStyle','none')
hold on
[C,h] = contour(xi,yi,zi,15);
dx=20;
% change dx to increase fontsize
clabel(C,h,'FontSize',dx,'Color','red')
set(gca,'ColorScale','log')
colormap(flipud(hot(50)))

You can also define your contour labels. Hope it works

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CHIRANJIT DAS 2022-5-13

@Ivan Mich see the edited answer.

Ivan Mich 2022-5-15

编辑：Ivan Mich 2022-5-16

Excuse me, I have a question. I would like to have the same bins and color classification in contourmap and in colorbar. But the point is that I can not make it, despite the search I did.

(for example I would like to have 4 color bins in contour map and in colorbar too)

Could you please help me?

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