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setting limit for colormap

조회 수: 9 (최근 30일)
Giulia
Giulia 2023년 4월 27일
답변: Simon Chan 2023년 4월 28일
Hello,
I have this figure below and need to adjust the colorbar in a way that all horizontal gradient values below 0.05° are displayed in white. How do I do it?
Also need to show 0.05, 0.075, 0.1 degrees as contours instead of filled colours, but don't know how do it. Can anyone help?
Thanks in advance for your help!
PS couldn't attach the 'tdh' variable as it's too big. It represents horizontal sea surface temperatures gradients.
cm1 = brewermap(40,'RdPu');
cm1(cm1>1) = 1;
cm1(cm1<0) = 0;
LONLIMS=[-16 7.8];
LATLIMS=[47 62];
figure
m_proj('miller','lon',LONLIMS,'lat',LATLIMS);
m_pcolor(lont(1:end-1),latt(1:end-1),mean(tdh,3)')
shading flat
caxis([0 0.1])
colormap(cm1)
([0.05 1],:); % set your range here
colormap(cmap); % apply new colormap
colorbar();
m_grid('fontsize',10);
m_gshhs_f ('patch',[.8 .8 .8],'edgecolor',[.1 .1 .1]);
cb = colorbar;
cb.Label.String = 'Horizontal Temperature gradient (\circC)';
  댓글 수: 2
Adam Danz
Adam Danz 2023년 4월 27일
See clim.
Giulia
Giulia 2023년 4월 28일
Thank you Adam.
Although clim changes the limit showing only values 0.05 to 0.1. I am looking to show values between 0 to 0.1, but to show values below 0.05 all white, so starting colour from 0.05, if that makes sense.

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답변 (1개)

Simon Chan
Simon Chan 2023년 4월 28일
You may try to create a custom colormap using colormapeditor.

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