Is there a way to continue operation during input()?

46 次查看（过去 30 天）
Bohan Yao
Bohan Yao 2019-8-16
回答： per isakson 2019-8-18
So what I'm essentially trying to do is, I have a switch statement in a while loop. Using an input() function, MATLAB will take the user input and put it through the switch cases. Pretty simple. But now, I want to modify it such that if MATLAB does not receive a command during input() for X number of seconds, it will continue the code, instead of waiting for user input. Ineveitably, it will go to the default switch case becuase a null input will not match any of the cases, and then the while loop will take me back to input(). So is there a way to "unpause" the code during input() automatically without me having to press ENTER?
  2 个评论
Stephen23
Stephen23 2019-8-16
编辑：Stephen23 2019-8-18
Your best choice is to write a GUI: a well-designed GUI is anyway a much better user-interface than input.
Bohan Yao
Bohan Yao 2019-8-16
I agree, however, I am working with someone else's code, which they have already developed extensively. Implmenting a GUI would require a lot more work than is worth it. Is there another way to do this with just input()? If there truly is no other way to do it, then I guess I have no choiec but to create a GUI.

请先登录，再进行评论。

请先登录，再回答此问题。

回答（2 个）

Walter Roberson
Walter Roberson 2019-8-18
https://www.mathworks.com/matlabcentral/fileexchange/8297-getkeywait
The below two mostly rely on Psychtoolbox
https://www.mathworks.com/matlabcentral/answers/310311-how-to-get-psychtoolbox-to-wait-for-keypress-but-move-on-if-it-hasn-t-recieved-one-in-a-set-time
https://www.mathworks.com/matlabcentral/answers/143088-real-time-detect-keypress
per isakson
per isakson 2019-8-18
Something like
%% a script named cssm.m
while true
user_input = waitinput( 'prompt: ', 5, 's' );
if isnan( user_input )
user_input = 'default';
disp(' ')
end
switch user_input
case 'default'
disp('default')
case 'poi'
disp('poi')
case 'abc'
disp('abc')
case 'quit'
disp('good bye')
break
otherwise
error('failure')
end
end
might do the trick. That is to say waitinput by Grzegorz Knor does the trick.
And a little test
>> cssm
prompt:
default
prompt:
default
prompt: poi
poi
prompt:
default
prompt: quit
good bye

类别

在 Help Center 和 File Exchange 中查找有关 Timing and presenting 2D and 3D stimuli 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by