清空筛选条件
清空筛选条件

How can I enlarge the legend box-size?

356 次查看（过去 30 天）
Naveen
Naveen 2013-2-14
评论： Jan 2024-6-19
Hi,
I am plotting two curves and defining their parameters using the legend. The code is as follows
hleg1 = legend ( ['$ n/n_c = $' num2str(den1)], ['$ n/n_c = $' num2str(den2)] );
set(hleg1,'Interpreter','latex')
set(gca,'fontsize',15)
My problem is that as soon as I change the font size to 15 the box around the legends doesn't expand automatically and I have legends of the curves going outside the legend box. Can anybody suggest something?

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2013-2-14
legend() is implemented by creating a new axis, the handle of which is returned. You should be setting Interpreter and fontsize for the text entries rather than the axis.
[hleg1, hobj1] = legend( ...);
textobj = findobj(hobj1, 'type', 'text');
set(textobj, 'Interpreter', 'latex', 'fontsize', 15);
Then if you find you need to, set() the Position property of hleg1.
  2 个评论
Naveen
Naveen 2013-2-14
Thanks! It seems to work and it's a bit faster than the previous method I was trying. I don't know why? However I have another question. I have two legends and I could make it work as follows
[hobj1 hobj2] = legend ( ['$ n/n_c = $' num2str(den1)], ['$ n/n_c = $' num2str(den2)] );
textobj1 = findobj( hobj1,'type', 'text' );
set( textobj1, 'Interpreter', 'latex', 'fontsize', 15 );
textobj2 = findobj(hobj2, 'type', 'text');
set(textobj2, 'Interpreter', 'latex', 'fontsize', 15);
set(gca,'fontsize',15)
Is there any way that I don't have to define two textobj1 and textobj2 and set property for each one? I tried naively in the same way as I defined [hobj1 hobj2] but that didn't work.
Walter Roberson
Walter Roberson 2013-2-15
You have a legend with two entries. The second value returned by legend() is the handles to the objects that went up to make the legend, including the text objects. The findobj() reduces the list down to just the text objects. The set() then affects all of those text objects. So already this code works for legends with multiple entries.

请先登录，再进行评论。

更多回答（2 个）

Azzi Abdelmalek
Azzi Abdelmalek 2013-2-14
编辑：Azzi Abdelmalek 2013-2-14
set(hleg1,'position',[0 0 0.2 0.2])
In general
set(hleg1,'position',[x0 y0 width height])
  3 个评论
显示 1更早的评论
Jan
Jan 2024-6-19
Ran in:
Does this syntax still work in 2022b?
set(hleg1,'position',[x0 y0 width height])
Unrecognized function or variable 'hleg1'.
I try to make the box twice as high to increase the spacing between legend entries (because one of them is multi-line).
set(hleg1,'Location', 'NorthEastOutside');
sz = get(hleg1, 'position');
sz(2) = sz(2)-sz(4); % Make the bottom lower
sz(4) = 2*sz(4); % Make the heigth larger
set(hleg1,'position', sz);
This does indeed resize the legend, but the axes switch to full width, which is unwanted. Adding
set(hleg1,'Location', 'NorthEastOutside');
again, after all this also resizes the legend back to its original tight version.

请先登录，再进行评论。

Max Riedel
Max Riedel 2016-4-6
A simple workaround is to put additional spacing after the text.
E.g., by using \quad:
hleg1 = legend ( ['$ n/n_c = $' num2str(den1) '$\quad$'], ['$ n/n_c = $' num2str(den2) '$\quad$'] );

类别

在 Help Center 和 File Exchange 中查找有关 Legend 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by