Plotting a legend without displaying data on UIAxes

Question

Mohammad Shahbazy 2022-9-26

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1812070-plotting-a-legend-without-displaying-data-on-uiaxes

评论： Mohammad Shahbazy 2022-9-26

disabled legend.png

Hi all,

I want to show a legend without showing the plot data on the app.UIAxes in App Designer. I written the following code but at the end it shows a legend box as an disabled legend (attached figure). How can I correct my code?

I would be apprciated if you kindly guide me.

Many thanks,

Moh

colororder = {'r','g','b','c','m'};

x = rand(100,5);

label = cellstr(num2str([1:1:size(x,2)]', 'cluster%d'));

for i=1:1:size(x,2)

axis(app.UIAxes,'off');

set(app.UIAxes,'visible','off');

f = plot(app.UIAxes,x(:,i),'Color',colororder{i});

hold(app.UIAxes,'on');set(f,'visible','off');

end

hold(app.UIAxes,'on');

set(app.UIAxes,'visible','off');

axis(app.UIAxes,'off');

hold(app.UIAxes,'on');

legend(app.UIAxes,label,'AutoUpdate','off');

2 个评论
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Walter Roberson 2022-9-26

What legend would you like displayed when all of your lines are invisible?

Mohammad Shahbazy 2022-9-26

I have the lines displayed in a different UIAxes for some reasons in my app, then here only need to have a legend.

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Answer 1

Chris 2022-9-26

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1812070-plotting-a-legend-without-displaying-data-on-uiaxes#answer_1060725

编辑：Chris 2022-9-26

在 MATLAB Online 中打开

colororder = {'r','g','b','c','m'};
 
x = rand(100,5);
label = cellstr(num2str([1:1:size(x,2)]', 'cluster%d'));
% Plot a point but don't grab its handle
plot(app.UIAxes,0,0);
hold(app.UIAxes,'on')
for i=1:1:size(x,2)
    % Get handles to the other plots, which are nan
    f(i) = plot(app.UIAxes,NaN,NaN,'Color',colororder{i});
end
axis(app.UIAxes,'off');
legend(f,label,'AutoUpdate','off');