Plot and legend colors don't match

Question

Gunnar 2014-8-28

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/152671-plot-and-legend-colors-don-t-match

评论： RG 2019-1-29

I suspect it's because I'm using transparency (i.e. FaceAlpha) in my plot. Example code run on MATLAB r2013a:

clear all, close all
x  = 1:10;
y  = 100:100:200;
z1 = 1*x;
z2 = 3*x;
[X,Y] = meshgrid(x,y);
Z = [z1;z2];
fig = 0; fig = fig + 1; figure(fig); 
hMesh = mesh(X,Y,Z);
set(gca,'XLim',[1 10],...
        'YLim',[100 200],...
        'XTick',[0:1:10],...
        'YTick',[100:100:200]);
set(hMesh,'FaceColor',[1 0 0],'EdgeColor',[1 0 0],'FaceAlpha',0,'EdgeAlpha',0.4,'LineWidth',3);
hLegend = legend('Test','Location','Northeast');
box on

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Answer 1

José-Luis 2014-8-28

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https://ww2.mathworks.cn/matlabcentral/answers/152671-plot-and-legend-colors-don-t-match#answer_150116

编辑：José-Luis 2014-8-28

在 MATLAB Online 中打开

legendObj = get(hLegend,'Children');
your_patch = findobj(legendObj,'Type','patch');
set(your_patch,'FaceAlpha',0,'EdgeAlpha',0.4);

Please accept the answer that best solves your problem.

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RG 2019-1-29

在 MATLAB Online 中打开

Hi, there, I'm trying to solve similar issue, legend colors to match the plot line colors and can't find a solution, so I'm asking for help here. Here is the code:

Color = distinguishable_colors(numel(donuts));
for m = 1 : max(data.numberOfDonutsPerShelf)-1 
        i(m) = m;
        i = i';
end
for n = 1 : numel(donuts)
hi(n,:) = plot(i,data.donutsFrequencies(:,n),'-o','color',Color(n,:));
end
hold on
legend(hi,strcat(num2str(donutsShelves),'N')) 
legend boxoff