Refresh legend from the command line

2012 1 19
4 个回答
回答已采纳
更新时间：2018 12 20
7 次查看（30 天）

1 个投票

Right-clicking a legend gives the option to "refresh" the legend.
Does anyone know of a way to call "refresh legend" from the command line?

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 采纳的回答

Stephan Heise
Stephan Heise 2012-4-12

0 个投票

In the meantime I found an answer elsewhere:
It is possible to access any context menu item via the axes' UIContextMenu property. For details see http://undocumentedmatlab.com/blog/legend-semi-documented-feature/#comment-70611.
Stephan.

更多回答（3 个）

Junaid
Junaid 2012-1-19

4 个投票

Dear,
legend('-DynamicLegend');
it will refresh. And update the contents dynamically, either you delete something from plot or you add something:-)
I hope this is what you are required..:-)
Stephan Heise
Stephan Heise 2012-1-19

0 个投票

Hi Junaid,
thanks for the fast reply! I recently stumbled upen the "DynamicLegend" option myself and first thought, this was the same as the context-menu's "refresh". However, ‘DynamicLegend’ only seems to react to additions or deletions to the axes: switching the ‘Visibility’ of a line to ‘off’ or switching the legend entry off by
set(get(get(line_handle,'Annotation'),'LegendInformation'),'IconDisplayStyle','off')
is ignored by the ‘DynamicLegend’ feature. :( The “refresh” function correctly removes the corresponding legend entry in these cases.
Jim Hokanson
Jim Hokanson 2018-12-20

0 个投票

I've found hiding and showing the legend works.
ax = gca; %might be different ...
legend(ax,'hide');
legend(ax,'show');

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