如何在matlab的imagesc图中添加图例 [英] How to add legend in imagesc plot in matlab
本文介绍了如何在matlab的imagesc图中添加图例的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有以下代码,创建要打印到文件的图形:
I have the following code, creating figures which I print to files:
f=figure;
set(gcf,'Visible','off');
imagesc (exp_genes_sorted_cut);
h=colorbar;
set(gcf,'Colormap',mycmap);
set(gca, 'xtick', 1:num_tissues_displayed);
set(gca, 'xticklabel', tissues, 'fontsize', 14);
ylabel('Genes', 'Fontsize', 18);
xlabel('Tissues', 'Fontsize', 18);
我想在颜色栏的右侧添加图例,我尝试使用图例功能进行此操作,但未显示...使用文本功能将其放置在printanle区域之外.有人可以帮忙吗? 谢谢
I want to add legend to the right of the colorbar, and I tried doing so using the legend function, but it is not shown... using the text function places it outside the printanle area. Can anyone help ? Thanks,,,
推荐答案
可能的解决方法(如果我对您的理解正确):
A possible workaround (if I understood you correctly):
N=4; % # of data types, hence legend entries
Data = randi(N,30,30); % generate fake data
imagesc(Data) % image it
cmap = jet(N); % assigen colormap
colormap(cmap)
hold on
L = line(ones(N),ones(N), 'LineWidth',2); % generate line
set(L,{'color'},mat2cell(cmap,ones(1,N),3)); % set the colors according to cmap
legend('A','B','C','D') % add as many legend entries as data
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