How to call a function within ax=gca format

Question

Jose Rego Terol 2020-8-25

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/584165-how-to-call-a-function-within-ax-gca-format

编辑： Rik 2020-8-25

采纳的回答： Rik

在 MATLAB Online 中打开

Hi,

I got a plot

I want to colour the X Tick labels using cmu matlab package (http://matlab.cheme.cmu.edu/2011/09/13/check-out-the-new-fall-colors/#8)

So, to call cmu function, just type

c = @cmu.colors;
c('deep carrot orange').

I tried this here,

ax=gca
ax.XTickLabel{1}= ['\color{black}' ax.XTickLabel{1}];
ax.XTickLabel{2}= ['\color{red}' ax.XTickLabel{2}];
ax.XTickLabel{3}= [c('deep carrot orange') ax.XTickLabel{3}];

But there is no label for 3rd position. I do not know how to call c here.

Thanks.

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Answer 1

Rik 2020-8-25

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/584165-how-to-call-a-function-within-ax-gca-format#answer_484649

编辑：Rik 2020-8-25

在 MATLAB Online 中打开

This seems to be impossible. The closest I came was the code below.

c = @cmu.colors;
col=c('deep carrot orange');%returns this col=[0.9100 0.4100 0.1700];
%convert the triplet to a hex RGB color code
col=dec2hex(round(col*255),2);col=col';col=col(:)';
figure(1),clf(1)
plot(rand(1,10))
ax=gca;
ax.TickLabelInterpreter='tex';%using 'latex' instead doesn't help
ax.XTickLabel{1}= ['{\color{black}' ax.XTickLabel{1} '}'];
ax.XTickLabel{2}= ['\color{red}' ax.XTickLabel{2}];
ax.XTickLabel{3}=['\color[HTML]{' col '}' ax.XTickLabel{3}];

Note that this function returns an RGB triplet, not some magic indication of what the color should be.

I must therefore echo Walter in that old post: you will have to live with the default colors or use text to replace them one by one

Edit:

I stand corrected. It seems you can indeed use RGB triplets:

c = @cmu.colors;
col=c('deep carrot orange');%returns this col=[0.9100 0.4100 0.1700];
n=3;
ax.XTickLabel{n} = sprintf('\\color[rgb]{%f,%f,%f}%s', col, ax.XTickLabel{n});