Barchart colorbar colors from second vector

I have a variant of this question:
I have a bar chart where I am colouring the bars based on a second corresponding vector.
%%
clear
close all
clc
ids1 = [2,4,5,6,8];
meanVals = [0.2,0.204,0.199,0.208,0.19];
velMns = [16.384,16.98,17.182,18.001,18.40];
figure;
b=bar(ids1,meanVals);
xticks(ids1)
grid on
labels = pad(string(b(1).YData),6);
labelsShrt=[extractBetween(labels,1,5)]';
xtips = b(1).XEndPoints;
ytips = b(1).YEndPoints;
text(xtips,ytips,labelsShrt,'HorizontalAlignment','center',...
'VerticalAlignment','bottom','FontSize',8);
title('mean values')
ylim([min(meanVals)-0.02 max(meanVals)+0.005])
% set bar color
MaxV = 20;
MinV = 5;
range=MaxV-MinV;
colors = jet(range); % Define a colormap
b.FaceColor = 'flat';
for II = 1:length(ids1)
barColorID = round(velMns(II),0)-MinV;
b.CData(II,:) = colors(barColorID,:);
end
cbar = colorbar;
caxis([MinV MaxV]);
This works as desired apart from the colormap of the colorbar, which does not correspond to the second vector.
Thanks in advance

 Accepted Answer

You need to set the colormap of the figure or axes.
%%
clear
close all
clc
ids1 = [2,4,5,6,8];
meanVals = [0.2,0.204,0.199,0.208,0.19];
velMns = [16.384,16.98,17.182,18.001,18.40];
figure;
b=bar(ids1,meanVals);
xticks(ids1)
grid on
labels = pad(string(b(1).YData),6);
labelsShrt=[extractBetween(labels,1,5)]';
xtips = b(1).XEndPoints;
ytips = b(1).YEndPoints;
text(xtips,ytips,labelsShrt,'HorizontalAlignment','center',...
'VerticalAlignment','bottom','FontSize',8);
title('mean values')
ylim([min(meanVals)-0.02 max(meanVals)+0.005])
% set bar color
MaxV = 20;
MinV = 5;
range=MaxV-MinV;
colors = jet(range); % Define a colormap
b.FaceColor = 'flat';
for II = 1:length(ids1)
barColorID = round(velMns(II),0)-MinV;
b.CData(II,:) = colors(barColorID,:);
end
cbar = colorbar;
caxis([MinV MaxV]);
set(gca,'Colormap',colors)

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R2023b

Asked:

on 18 May 2024

Commented:

on 20 May 2024

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