make a better map

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Nurul Ain Basirah Zakaria
评论： Nurul Ain Basirah Zakaria 2021-4-17
hi, how can i edit and change the colormap to make it better?
this is my script:
ax = axes();
Spi3=permute(New_freq,[2 3 1]);
pcolor(lon,lat,Spi3);
shading interp
thank you in advance!
  2 个评论
DGM
DGM 2021-4-15
It depends what you mean by "make it better". You can set the colormap using colormap(). There are a number of built-in colormaps, and there are many custom colormaps on the File Exchange. You can make your own or customize existing colormaps using colormapeditor().
Nurul Ain Basirah Zakaria
Nurul Ain Basirah Zakaria 2021-4-15
how can I make this region more clearer? my data is matrix of 1x32x20.

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采纳的回答

Bjorn Gustavsson
Bjorn Gustavsson 2021-4-15
You should try:
shading flat
instead of the interp option. You will have to accept the fact that you only have data in a 32-by-20 matrix, that will limit the detail in regions with gradients and structure.
If you want much neater display you will have to gather data with higher resolution, if you're "lucky" you might get a bit neater presentation by interpolating the data to a finer grid - this implicitly makes the assumption that Spi3 varies according to the interpolation-method of your choise between the data points.
HTH

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