Editing a Colormap in MATLAB

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martin martin
martin martin 2019 年 4 月 19 日
コメント済み: Cris LaPierre 2022 年 4 月 14 日
Hello guys,
I have seen video about edit a colormap https://www.mathworks.com/videos/interactively-editing-a-colormap-in-matlab-97147.html , but i don't know, how to save the setting after I edit values. Specific example ... I edit map on the top with the cursor of mouse (move positive and negative values to the center - zero). How can I get this setting always?
askcolormap.PNG

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Cris LaPierre
Cris LaPierre 2019 年 4 月 20 日
My suggestion would be to create an image, set it as you want, save the colormap and color axis limits to a mat file.
cmap = colormap(gca);
cl = caxis;
save cmap.mat cmap cl
Then, when you want to use the same colormap, load the mat file, and set the colormap and color axis limits to the values loaded in the mat file.
load cmap
contourf(X,Y,z)
colormap(cmap);
colorbar
caxis(cl);
  3 件のコメント
Supriya Gain
Supriya Gain 2022 年 4 月 13 日
For me it didn't work. I'm not able to save the .mat file. It showing some error like,"unable to write the file cmap.mat: permission denied"
Cris LaPierre
Cris LaPierre 2022 年 4 月 14 日
You appear to be trying to save the file to a location you do not have write permission. Try changing your current folder location.

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