sfunction builder function through command line

Is there a way to build from the sfunction builder via command line instead of opening the dialog box and pressing "build"?

Answer 1

[Kaustubha Govind]

See this solution for the command-line API.

Try this code since there seems to be an error in the code from the solution:

blkNames = find_system(bdroot,'lookundermasks','all','BlockType','S-Function');
for blkIdx = 1:numel(blkNames)
  blkHandle = get_param(blkNames{blkIdx}, 'Handle');
  appdata = sfunctionwizard(blkHandle,'GetApplicationData');
  appdata = sfunctionwizard(blkHandle,'Build',appdata);
end

Also, make sure that the model is open when the code is run.

[Pika]

Thanks but the sfunctionwizard doesn't exist for 2011b. do you know an equivalant command?

[Kaustubha Govind]

Strange, I have R2011b, and I do see the function. Do you have $matlabroot\toolbox\simulink\simulink\sfunctionwizard.p?

[Pika]

yes i do. the error i get is out of the second command line listed. It says Attempt to reference field of non-structure array.

I know how to create a structure array with dot notation but why was blkHandle not automatically created as a structure array when first command line is used? mine apppears to be as a cell array

[Kaustubha Govind]

Not sure why the solution assumes that find_system returns a structure. It does indeed return a cell-array of block names as you have observed. Try the code I edited and posted in my answer.

Answer 2

[arun kumar]

can i also write this appdata back to the s-function block. or is there any other way i can modify the s-function inports and outports from the command line? ofcourse i can modify the appdata structure but then how do i feed this information back to the s-function?

[giga]

Hi did anyone have an answer for this question? Thanks!

Answer 3

[kiyoko]

sfunctionwizard is undocumented and not officially supported. If you are looking for command-line s-function authoring functionality, then the legacy code tool is designed for this.

Answer 4

[Sanket]

appdata = sfunctionwizard(blkHandle,'GetApplicationData') is not working for 2017b, any alternate solution?

>> appdata = sfunctionwizard(gcb,'GetApplicationData')

No method 'setBlockHandle' with matching signature found for class

'com.mathworks.toolbox.simulink.sfunbuilder.SFunctionBuilder'.

Error in sfunctionwizard