How can I quickly pass the output of a Simulink block to a GUI?

Question

Will Forfang 2013-4-30

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/74126-how-can-i-quickly-pass-the-output-of-a-simulink-block-to-a-gui

I currently have a simulink model in which a custom matlab function block performs some signal processing on a frame of data and then saves the results to the workspace with every iteration with the "assignin" command.

I then have a GUI, which I made in GUIDE, that uses a timer object to repeatedly pull this data from the workspace and display it in a variety of ways with the "evalin" command.

This works fine, but it is a little slow. I know I can read object parameters of a simulink block with my gui directly with the "get_param" command.

Is it aso possible to read the output of blocks in this way?

That is, can I employ a more direct or continuous method to read the output of the simulink blocks into my GUI without reading/writing to the workspace?

Thanks!

-Will

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Azzi Abdelmalek 2013-4-30

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/74126-how-can-i-quickly-pass-the-output-of-a-simulink-block-to-a-gui#answer_83961

在 MATLAB Online 中打开

get_param allows to read block parameters, the block output is not a parameter

3 个评论
显示 1更早的评论隐藏 1更早的评论

Azzi Abdelmalek 2013-4-30

you can save your output to workspace(the fastest way) or to a file,

Will Forfang 2013-4-30

在 MATLAB Online 中打开

I found a solution, or a work-around, that operates faster than the assignin/evalin method however I have to close/reopen the model every time I stop it. I simply save the output of the function to the UserData parameter of the block. Now I can access it with get_param.

In case anyone needs to do something similar, here is a simple example:

function y = f(x)
coder.extrinsic('set_param'); 
%coder.extrinsic tells the compiler to ignore "set_param" 
%because it isn't supported.
y = x*5;
set_param('ModelName/BlockName','UserData',y);