Final constant from simulink to GUI

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Jan 2012-4-5

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/34590-final-constant-from-simulink-to-gui

评论： SMEAC 2017-6-28

Hello,

i want to display results from simulink in GUI by "edit" textbox , is it possible by "Display" block in simulink and into GUI edit callback insert:

get_param('myprogram/Display', 'Value')

it doesnt work...

Thanks for your answers.

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Answer 1

Kaustubha Govind 2012-4-5

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https://ww2.mathworks.cn/matlabcentral/answers/34590-final-constant-from-simulink-to-gui#answer_43419

You can use get_param only to get block parameter values, not their output values (which are computed at every time-step). If you'd like for your GUI field to be updated continuously as the model is running, it is best to setup a PostOutputs method execution event. See Accessing Block Data During Simulation for more information.

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Kyle 2014-5-14

Your hyper link no longer goes to a valid page. Is there a new location for the information?

SMEAC 2017-6-28

I would suggest she was looking at this link: Accessing Block Data During Simulation

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Answer 2

Jan 2012-4-11

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https://ww2.mathworks.cn/matlabcentral/answers/34590-final-constant-from-simulink-to-gui#answer_44123

I have simulation with only with one step, so Id like to display final value in GUI by:

get_param('myprogram/Display', 'Value') ...

but get_param run correctly only for "constant block" but I need a number from Display or Outport.

Thanks for your answer.

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Answer 3

TAB 2012-4-12

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https://ww2.mathworks.cn/matlabcentral/answers/34590-final-constant-from-simulink-to-gui#answer_44150

get_param() & get_param() are used to read and set the block properties (attributes). No block directly returns its output value using get_param().

get_param('block','Value') run correctly for "Constant block" becuase 'Values' is one of the attribute which is passed before the start of simulation.

See Display block parameters which can be read or write by get_param() & set_param().

To access the output value in GUI use Sinks\To Workspace block which will save the output value to base workspace (after completion of simulation) which can be easily accessed in GUI.

Or, start a event listner as suggested by Kaustubha, which will return the output value during the simulation itself.