多行注释:num2str 的问题 [英] Multiline annotation: problem with num2str

问题描述

我希望文本框中的文本显示为:

I expect the text in the textbox to show up as:

Simulation parameters: 
Number of loops = 500
Number of subcarriers = 12
Number of frames = 5,
MT = 2, MR = 2               % or MR x MT = 2 x 2

我的代码如下:

txt = {'Simulation parameters: ','Number of loops = ',  num2str(loops_num),'Number of subcarriers = ',num2str(Nfft),,'Number of frames = ',num2str(K),'MT = ',num2str(MT),'MR = ',num2str(MR)};
text(4,0.5,txt,'FontSize',12)

我得到了:

1) 如何解决?(副载波数 = 100，等等需要在一行上)

1) How to fix it? (Number of subcarriers = 100, etc need to be on one line)

2) 在这种情况下如何使用annotation?

2) How can I use annotation in such a case?

plot(1:10)
str = {'Simulation parameters: ','Number of loops = ',  num2str(loops_num),'Number of subcarriers = ',num2str(Nfft),'MT = ',num2str(MT),'MR = ',num2str(MR),'Number of frames = ',num2str(K)};
annotation( 'textbox', 'String',str, 'Color', 'black', ...
            'FontSize', 14, 'Units', 'normalized', 'EdgeColor', 'none', ...
            'Position', [0.8,0.5,0.2,0] )
set( gca, 'Position', [0.1, 0.1, 0.6, 0.8] )

推荐答案

按原样，您创建了一个由字符数组(字符串")组成的元胞数组，当在 annotation.因此，您必须连接那些您希望使用 [ ... ] 合并到一行的值.请参阅以下简短示例:

As is, you create a cell array of char arrays ("strings"), which is interpreted as separate lines when used in annotation. So, you have to concatenate those values, which you want to have to be merged to one line by using [ ... ]. See the following short example:

plot(1:10);
str = { ...
  'Simulation parameters: ', ...
  ['Number of loops = ', num2str(500)], ...
  ['Number of subcarriers = ', num2str(12)], ...
  ['MT = ', num2str(2)], ...
  ['MR = ', num2str(2)], ...
  ['Number of frames = ', num2str(5)] ...
};
annotation('textbox', [0.3, 0.6, 0, 0], 'String', str, 'FitBoxToText', 'on');

输出(Octave 5.1.0；也在 MATLAB Online 中测试的代码)如下所示:

The output (Octave 5.1.0; code also tested in MATLAB Online) looks like this:

希望有帮助！

关于这个问题，注释是否可以移到图形之外.这是可能的，但是 合并了操作图形属性.这是修改后的代码:

On the question, if the annotation could be moved outside the figure. It's possible, BUT incorporates manipulating the figure properties. That's the modified code:

plot(1:10);
set(gca, 'Position', [0.1 0.1 0.6 0.8]);
str = { ...
  'Simulation parameters: ', ...
  ['Number of loops = ', num2str(500)], ...
  ['Number of subcarriers = ', num2str(12)], ...
  ['MT = ', num2str(2)], ...
  ['MR = ', num2str(2)], ...
  ['Number of frames = ', num2str(5)] ...
};
annotation('textbox', [0.75, 0.60, 0, 0], 'String', str, 'FitBoxToText', 'on');

这是更新后的输出:

这篇关于多行注释:num2str 的问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！