How do i calibrate multiple sub plots to the same colorbar

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Rascal07
Rascal07 2018-2-2
评论： Rik 2018-2-7
I am running the simple piece of code below creating a 3 by 3 subplot of a variety seafloor features as pcolor surf plots. I would like to get elevation = 0 to be the same colour in all sub plots and so on for each other elevation allowing one color bar to be used for all 9 plots within the sub plot. Does anyone know how to do this?
ncfile = 'GEBCO_2014_2D_Hawaii.nc' ; % nc file name % To get information about the nc file ncinfo(ncfile) % to display nc file ncdisp(ncfile) % to read a vriable 'var' exisiting in nc file elevation = ncread(ncfile,'elevation') ; lat = ncread(ncfile,'lat') ; lon = ncread(ncfile,'lon') ;
figure (1) subplot(3,3,1) pcolor(-lat,-lon,elevation) shading interp colormap jet colorbar surf(-lat,-lon,elevation) shading interp grid on title('Hawaii') colorbar

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Rik
Rik 2018-2-2
You can't link the colorbar itself. You will have to use the same colormap. If you set the figure as a target for colormap, the property will be inherited by the subplots (you might need to recreate them, I didn't test). This inheritance used to be default behavior, but since a few years back (R2014b) you can have a different colormap for each axis in a figure.
  2 个评论
Rascal07
Rascal07 2018-2-7
Ive used the same colormap (jet) fo the entire figure however in some subplots 0 is reprisented by yellow and in others in red. is the a way to change this?
Rik
Rik 2018-2-7
My guess would be this would be because of different data types (double/single vs (u)int8/16/32/64) indexing in different ways into the colormap, but I haven't tested this.

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