run simulink with GUI with set_param()

Hi,

i wanna to edit 2 values in the GUI and with one button the simulnk gets these values and after the result should be displayed in the GUI.

but i dont understand set_param(). this is my code:

if true
 function varargout = Gui(varargin)

 gui_Singleton = 1;
 gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @Gui_OpeningFcn, ...
                   'gui_OutputFcn',  @Gui_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
 if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
 end

 if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
 else
    gui_mainfcn(gui_State, varargin{:});
 end

 % --- Executes just before Gui is made visible.
 function Gui_OpeningFcn(hObject, eventdata, handles, varargin)

 % Choose default command line output for Gui
 handles.output = hObject;

 % Update handles structure
 guidata(hObject, handles);

 % UIWAIT makes Gui wait for user response (see UIRESUME)
 % uiwait(handles.figure1);

 % --- Outputs from this function are returned to the command line.
function varargout = Gui_OutputFcn(hObject, eventdata, handles) 

 % Get default command line output from handles structure
varargout{1} = handles.output;

 function kraft_Callback(hObject, eventdata, handles)

 kraft_value = str2num(get(hObject,'String')); 

 if (isempty(kraft_value)) 
     set(hObject,'String','0') 
 end 
 guidata(hObject, handles); 

 function flaeche_Callback(hObject, eventdata, handles)
 flaeche_value = str2num(get(hObject,'String')); 

 if (isempty(flaeche_value)) 
     set(hObject,'String','0') 
 end 
 guidata(hObject, handles);

 function start_Callback(hObject, eventdata, handles)

 k = str2num(get(handles.kraft,'String'));
 f = str2num(get(handles.flaeche,'String'));

 set_param('Steifigkeit/k','String',num2str(k)); 
 set_param('Steifigkeit/f','String',num2str(f)); 

 set(handles.static,'String',spannung); 

 guidata(hObject, handles); 

 % --- Executes during object creation, after setting all properties.
 function static_CreateFcn(hObject, eventdata, handles)
  end

But i dont know what is the meaning of the parameters os set_param(). cann you help me pls?

[Rohit]

Hi, I am trying to use set_param for changing 'Initial output' parameter of 'Ramp' block.

I am doing this by using:

global a1

set_param([bdroot '/BR-KT Assembly-1/Motion input2/Ramp1'],'Slope',a1)

But it gives me an error message saying: Error using GUI_Rohit>StartSimulation_Callback (line 429) Ramp block (mask) does not have a parameter named 'Initial output'

Can you suggest something to eliminate this?

Thanks a lot

Rohit

Answer 1

[Azzi Abdelmalek]

set_param allows to change any parameters block in your simulink model

Look at set_param

[Azzi Abdelmalek]

You can use

get_param('Steifigkeit','Dialogparameters');

Answer 2

[sia]

I know this link, but i dont understand set_param(object,param,value) the objektname is the name of my .mdl ??

and what is param???

e.g. i have written

    set_param('Steifigkeit','String',num2str(k));

where can i finde the name of my param????

[Kaustubha Govind]

Sia: Not sure I understand your question. In this case, 'String' is the name of the parameter you are trying to set. Is that what you're asking?

Answer 3

[sia]

yes, it should be the name, but that is false "String". it should be what else, but i tried all of my parameters, but they are not the right name :(. how can i finde the right parameter ?

[Azzi Abdelmalek]

Sia, If you want to add a comment, click on comment on this answer. Do not add an answer.

[Kaustubha Govind]

+1 for Azzi's comment. Also, his other comment answers your question. Use get_param('Steifigkeit/k','DialogParameters'); to get full list of parameters for the block 'Steifigkeit/k'.

[sia]

and where should i write get_param()???

[Azzi Abdelmalek]

In Windows command

[Rohit]

Thanks a lot... that answered my question