Using text function in a for loop

30 次查看（过去 30 天）
Raldi
Raldi 2012-5-12
Hi, what i want to ask is how can i use the text function inside a loop and make it print the number of iterations? like this
for i = 1:4
----some code----
text(pos1,pos2,i)
end
  1 个评论
Oleg Komarov
Oleg Komarov 2012-5-12
Where do you want it printed? If on a graph, then you're on the right track. Do you want to keep the iteration already printed or you want to update it?
If you want to print it in the command window use disp or sprintf.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2012-5-12
Don't use i (the imaginary variable) for your loop index.
I handle a number of situations below.
for k = 1:1000
caption = sprintf('The value of k is %d', k);
% Print to command window.
fprintf('%s\n', caption);
% Print to static text control on a GUI.
set(handleToText, 'String', caption);
% Print to the overlay of an image or plot.
text(5, 10, caption);
% Force it to repaint the screen immediately.
drawnow;
end
Note the use of drawnow. If you're in an intensive loop, it often won't take time out to repaint your GUI until it's done with the loop. Thus you won't see any update on your screen. To get around this, use the drawnow command to force it to update/refresh/repaint the screen each time it's called.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Loops and Conditional Statements 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