Pie chart label overlapping

Question

Eugen Syrkin 2020-4-28

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/521414-pie-chart-label-overlapping

评论： Giuseppe Degan Di Dieco 2021-5-24

采纳的回答： Adam Danz

Hey guys so I have a pie chart with labels like 1%,2% <1% and because there are 100 values it overlaps quite a lot.

I am able to remove all labels with delete(findobj(p,'Type','Text'))

Is there any way to remove just the ones with <1% or somehow group the labels together?

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Answer 1

Adam Danz 2020-4-28

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/521414-pie-chart-label-overlapping#answer_428932

编辑：Adam Danz 2020-4-29

Use the pie() output handle to obtain the text objects.

h = pie(. . .);
th = findobj(h,'Type','Text'); % text handles

Determine which text strings begin with "<"

isSmall = startsWith({th.String}, '<');  % r2016b or later
% isSmall = ~cellfun(@isempty, regexp({th.String},'^<'));  % any matlab release

Either delete the text objects or replace their String values with empties.

delete(th(isSmall));
%or 
set(th(isSmall),'String', '')

Demo:

h = pie(sort([linspace(0,1,20),linspace(.5,2,10),linspace(1,10,20)]));

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Giuseppe Degan Di Dieco 2021-5-24

Dear Adam,

you're awesome, your help was so precious.

Thanks, best.

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Answer 2

Toder 2020-4-28

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/521414-pie-chart-label-overlapping#answer_428931

编辑：Toder 2020-4-28

Following the documentation for pie chart labels at https://www.mathworks.com/help/matlab/creating_plots/customize-pie-chart-labels.html, we can get the labels. Then a simple for loop can remove the ones you don't want.

x = [0.1 50 50];
p = pie(x);
pText = findobj(p,'Type','text');
for i=1:length(x)
    if strcmp(pText(i).String,'< 1%')
        pText(i).String = '';
    end
end