Matlab答案

Specific color corresponding to specific data using contourf colormap

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S CH.
S CH. 2021年5月12日
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编辑： S CH.on 25 Jun 2021
你好，
I would like to know if we can give a specific color to a specific data and plot them on Matlab ?
For example, I have a 3000x3000 matrix with x and y axis, I need to plot a range of data in a specific color.
我已经生成了地图，但颜色是随机的
this is my code :
a =数据;
数字;
[v，x] = meshgrid（v，x）;
contourf（v，x，a）
数字;
％Colourgb = HSV（喷气机）;
c = Colormap（喷气机）;%jet
L = [0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1];
[cdd hc]=contourf(v,x,A,[-0.01 L]);
Recolor_contourf(hc,c,L,'vert'）;
I want for example if A(x,y)==0.07 the colormap will be green ...
I can give more details.
Kind regards,
S.C.
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S CH.
S CH. on 17 May 2021
你好，
谢谢你的所有答案，我会稍后检查一下，我用截止日期转换为另一个项目，
The best thing to confirm your response is to try them, so I don't want to accept, give me a moment, please.
再次感谢。

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答案（2）

S CH.
S CH. on 25 Jun 2021
编辑：S CH. on 25 Jun 2021
你好，
谢谢 @DGM. , @J. Alex Lee 和 @Chad Greene. for your answers! It was great to use these methods and it is what I need!
I used the contourfcmap and I directly chose the number of levels I want, unfortunately I'm struggling to do a loop of 100 images using this method ! anyone can help me please?
To explain the problem, I have 100 matrices in a folder (each matrix is an image that I want to contourfmap) and after that save them in a folder as images with the colors I chose in contourfmap. Is this possible ?
这是我的代码：
fori = 1:N
%names is the char name of all matrices
如果i < 10
名称（i，:) = strcat（"X_t0000"，字符串（i），“。垫”）;
别的
名称（i，:) = strcat（“x_t000”，字符串（i），“。垫”）;
end
％a = eval（名称）;％（i，:)）;
百分比后，我不知道如何使用名称，以便如下更改：
数据=加载（f（i）.name）;
z = data.data;%iside each matrix there is matrix named 'data'
h1 = contourfcmap(v,x,z,[0.1 0.33],jet(1),[.1 .1 .1], [.9 .9 .9],'eastoutside')
d = h1.c.
l=h1.h
export_fig（fullfile（文件夹，sprintf（'％05d.png', i)))
%%% Here I had only one image appeared I think the last one.
％iMwrite（d，fullfile（文件夹，sprintf（'％05d.png'，i）））））））
％a = cat（3，名称）;在这里我想将100个矩阵连接到
％一个像2048x2048x100，但我没有成功
end
If it isn't clear please tell me to explain more. Thank you in advance.
S.C.

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