MATLAB: How to get variables from GUI into Simulink

[DM]Frink

Hey guys, I dont know if I'm wording my problem right but I have created a GUI, an m-file and a simulink. Initially I had the variables going from the m-file into the Simulink, but now I want the user to be able to change the variables so I have created a GUI. I keep getting an error though, I dont think the variables are going from the GUI m-file to the simulink model anymore. I remember you had to set something to do it, like simset or setcurrentsim or something but I cannot remember, so I was wondering can anyone help me with this one?



The following is the error code being created:

??? Error using ==> GUIForProject>pushbutton1_Callback at 140
Error due to multiple causes.

Error in ==> gui_mainfcn at 96
feval(varargin{:});

Error in ==> GUIForProject at 42
gui_mainfcn(gui_State, varargin{:});

Error in ==> @(hObject,eventdata)GUIForProject('pushbutton1_Callback',hObject,eventdata,guidata(hObject))


Caused by:
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Value' in 'BusAssignment/Constant': Undefined function or variable 'X'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain1': Undefined function or variable 'kf'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain10': Undefined function or variable 'lf'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain11': Undefined function or variable 'kf'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain12': Undefined function or variable 'lf'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain13': Undefined function or variable 'lr'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain14': Undefined function or variable 'md'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain15': Undefined function or variable 'ma'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain16': Undefined function or variable 'lf'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain2': Undefined function or variable 'kr'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain3': Undefined function or variable 'kr'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain4': Undefined function or variable 'lr'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain5': Undefined function or variable 'm'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain6': Undefined function or variable 'igg'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain7': Undefined function or variable 'kf'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain8': Undefined function or variable 'kr'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Gain' in 'BusAssignment/Gain9': Undefined function or variable 'lr'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'DelayTime' in 'BusAssignment/Phase Delay': Undefined function or variable 'phi'.
Error using ==> GUIForProject>pushbutton1_Callback at 140
Error evaluating parameter 'Frequency' in 'BusAssignment/Sine Wave': Undefined function or variable 'w'.

??? Error while evaluating uicontrol Callback

5uspect

You may simply have to assign the variables needed by Simulink to the base workspace.

assignin('base','var1',var1)

Was the original m-file a function? If not then simulink sees the variables since they're stored in base by default. Making your code a function stores the variable in a workspace seen only by that function. If your simulink runs from the same functon, as a subfunction say, then you may only need to make those variables global.

[DM]Frink

Yeah that worked, cheers!!!

Stupid Matlab help....doesnt tell ya anything

5uspect

[DM]Frink wrote: »

Yeah that worked, cheers!!!

Stupid Matlab help....doesnt tell ya anything

Matlab's help is fecking great TBH. I'm currently learning Fortran and pining for documentation as good.