Is it possible to read a value out of a graph, and use this value in simulink?

Question

Marcel Been 2014-8-27

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回答： Kaustubha Govind 2014-8-27

Hello,

I need something (a code) to read a value out of a (self created) graph. This value i want to put in my simulink model.

The graph will be created by two matrices, but not all the values are in the matrix, so with a graph the line is not blocked, but nicely curved. And this gives me the missing numbers in the matrices. So a good sollution for the missing values.

I want to get the Y-value of the graph, by putting the X-value (from simulink) in this 'code', to get the corresponding value/number out the graph to put this back in my simulink programm.

Hopefully you understand what i mean. And i hope somebody have a sollution or hint for me.

PS: English is not my native language

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Answer 1

Ilham Hardy 2014-8-27

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After using the 'dwim' toolbox, I think you what you need is this one: 1-D Lookup Table

mvg, IH

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Marcel Been 2014-8-27

Thanks, I'll try.

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Answer 2

Muhammad Faizan Tahir 2014-8-27

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Please guide me how i can ask the question on this forum

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Kaustubha Govind 2014-8-27

See the "Ask a Question" button the left pane.

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Answer 3

Kaustubha Govind 2014-8-27

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It looks like all you want is to interpolate your values. You may want to use the interp1 function for this.

Assuming that you need to use this value as a parameter in your Simulink model, you can simply enter the name of the base workspace variable in the Simulink block dialog in place of a value.