清空筛选条件
清空筛选条件

How to format a text box annotation?

65 次查看（过去 30 天）
Ryan Bowman
Ryan Bowman 2018-12-1
评论： Adam Danz 2020-8-31
I have an annonation on my image in matlab but I'm trying to have it with green text, a black outline and a purple background. I want my text font to be italic and in the Comic Sans format. Anyone know how to incorporate these characteristics in my code:
davis = imread('DavisHall.jpg');
figure(1), imagesc(davis), axis image
helpdlg(sprintf('Pick four corners of a window in this picture.\nPick top right corner first.\nPick bottom right corner second.\nPick bottom left corner third.\nPick top left corner fourth.'))
PickCorners = ginput(4)
x = [PickCorners(:,1)];
y = [PickCorners(:,2)];
h = gca;
hold(h, 'on');
plot(h, x', y');
plot(h, [x;x(1)]', [y;y(1)]');
dim = [.2 .5 .3 .3];
str = 'Window'
annotation('textbox',dim,'String',str,'FitBoxToText','on');

请先登录，再回答此问题。

采纳的回答

Adam Danz
Adam Danz 2018-12-1
编辑：Adam Danz 2020-8-31
You need the handle to the annotation object.
Once you have the handle, you can see the list of editable properties.
ah = annotation('textbox',dim,'String',str,'FitBoxToText','on');
Now look at all of the properties by executing 'ah' in the command window.
ah.Color = 'g'; %or = [0 .5 0] Green text
ah.FontName = 'Comic Sans MS'; %use listfonts command to see list of available fonts
ah.BackgroundColor = [.5 0 .5]; %purple background
EdgeColor will set the box color but it's already black when it's created.
  4 个评论
显示 2更早的评论
micholeodon
micholeodon 2020-8-31
编辑：micholeodon 2020-8-31
I wonder why formatiing below not works (text is not aligned in plot):
figure
nlogl = randn; mi = randn; ma = randn;
dim = [0.37 0.15 0.4 0.3];
str = sprintf('\n NLOGL\t = %+8.2f \n min\t = %+8.2f \n max\t = %+8.2f', nlogl, mi, ma);
txtbox = annotation('textbox', dim, 'String', str, 'FitBoxToText', 'on');
txtbox.FontName = 'FixedWidth';
Am I doing sth wrong?
When I type
str
in Command Window it displays nicely aligned text.
Adam Danz
Adam Danz 2020-8-31
Remove the spaces following "\n".
str = sprintf('NLOGL\t = %+8.2f \nmin\t = %+8.2f \nmax\t = %+8.2f', nlogl, mi, ma);

请先登录，再进行评论。

更多回答（0 个）

类别

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

标签

产品


版本

R2018a

Community Treasure Hunt

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

Start Hunting!

Translated by