Problem with calling upon a Simulink model from a GUI

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Roy Veldhuizen
Roy Veldhuizen 2012-6-29
I've got two simulink models, which are called by a GUI. I first developed the program, and i'm now implementing this in a GUI. When I'm calling, from a certain GUI function to my simulink model, called invcleanx.mdl, it gives the following error: Invalid Simulink object name: invcleanx. The error originates from the calling upon the workspace of the model, from:
hws = get_param(invclean,'modelworkspace') ;
I thought this might be an workspace issue, so I changed the callsign to the entire root, thus C:/Mydocuments/.../invcleanx
However, I still get the error:Invalid Simulink object name: C:\Documents and Settings\Administrator\Mijn documenten\My Dropbox\TU\Stage\Program\invcleanx.
So I guess, this is not the issue (or it is the wrong solution). I do not have the problem when I have the window of invcleanx.mdl open in Simulink, so apparently it is able to find if then. I now resolved the error by putting open_system('invcleanx') just before the reload command, but this is not favorable, since it takes time to load and open the model every time i run my calculation.
Am I not referring to my model in the correct way?
Thanks in advance,
Roy

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采纳的回答

TAB
TAB 2012-6-29
In your question you have mentioned:
I do not have the problem when I have the window of invcleanx.mdl open in Simulink, so apparently it is able to find if then. I now resolved the error by putting open_system('invcleanx') just before the reload command, but this is not favorable, since it takes time to load and open the model every time i run my calculation
It is not at all possible to read/write/change the model from command line until it is opened or loaded in the memory. Model must be opened using open_system() or it must be loaded into memory using load_system() before doing any operation on it.
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Kaustubha Govind
Kaustubha Govind 2012-6-29
I agree with TAB. Note that load_system won't open the model visibly, but will keep it open in the background (unlike open_system). This might be faster than open_system.

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更多回答（1 个）

Ilham Hardy
Ilham Hardy 2012-6-29
编辑：Ilham Hardy 2012-6-29
How about,
hws = get_param('invclean','ModelWorkspace') ;
instead of
hws = get_param(invclean,'modelworkspace') ;
HTH,
IH
  1 个评论
Roy Veldhuizen
Roy Veldhuizen 2012-6-29
Hello Ilham,
Thank you for reply, but I'm not sure how to implement this, since i'm not typing invcleanx directly, but it is string which is saved. I replaced for clarity reasons, which is backfiring now =p This is the whole relevant story:
function Toolex_OpeningFcn
filestruct.filename='estimationmodelgood';
filestruct.filenamemodel='C:\Documents and Settings\Administrator\Mijn documenten\My Dropbox\TU\Stage\Program\invcleanx';
set(handles.output,'UserData',filestruct)
function Calculation_Callback
filestruct=get(handles.output,'UserData')
hws = get_param(filestruct.filenamemodel,'modelworkspace') ;
hws.reload;
Is it possible to remove the quotations from a string?
Hope this makes my problem a bit clearer.

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