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How to grid ride of constant values of data in plotting?

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Nisar Ahmed
Nisar Ahmed 2022-11-18
回答： Rohit 2023-2-21
Hi,
I have attached my data and plotting a figure by using following code:
T= ones(size(Vp_time,1),1)*time';
X_dir=squeeze(X(:,1,1))*ones(1,size(Vp_time,2));
figure;clf;surf(X_dir,T,Vp_time);view([0,90]);shading interp;grid on;set(gca,'YDir','reverse');colorbar
set(gca,'FontName','Times New Roman', 'fontsize', 20,'FontWeight','bold', 'linewidth', 3)
%ylim([1050 1800])
%xlim([5.55e5 5.675e5])
ylabel('Time (s)');
xlabel('X (m)');
colormap(jet)
when I run my code figure (below) appears: I want remove light below color data (above, below and from left side). How can I adjust a code such that it does not conside the constant values (of blue color):
I want to plot figure ike this:

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回答（1 个）

Rohit
Rohit 2023-2-21
You can modify z-axis data so that constant values are reassigned to nan, thus surface plot function does not plot these values.
You can add this line before plotting the figure-
Vp_time(Vp_time==2450)=nan;
This will result in following figure-

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