Hi Zafar,
I understand that you want to create a custom MATLAB GUI for selecting a Simulink model, entering parameters, and displaying plots. Here’s how you can approach this:
1. You should start by creating a GUI Layout, which consists of a model selection dropdown, parameter input panel and a plot panel.
% Create a figure window
fig = uifigure('Name','Simulink Model GUI', 'Position', [100 100 500 400]);
% Add a dropdown for Simulink model selection
lbl = uilabel(fig,'Position',[20 340 100 22], 'Text', 'Select Model:');
modelDropdown = uidropdown(fig, 'Position', [120 340 150 22], ...
'Items', {'Model1', 'Model2', 'Model3'}, ...
'ValueChangedFcn', @(src,event) loadModelParameters(src, fig));
% Add a panel for parameters
paramPanel = uipanel(fig, 'Position', [20 150 460 180], 'Title', 'Model Parameters');
% Add a panel for plots
plotPanel = uipanel(fig, 'Position', [20 20 460 100], 'Title', 'Output Plot');
2. Now define callbacks to clear the old parameter fields and create new ones based on the selected model.
function loadModelParameters(src, fig)
selectedModel = src.Value;
% Clear existing parameter fields from the panel
paramPanel = findobj(fig, 'Type', 'uipanel', 'Title', 'Model Parameters');
delete(allchild(paramPanel)); % Clear previous elements
% Create input fields based on the selected model
switch selectedModel
case 'Model1'
uilabel(paramPanel, 'Position', [10 140 100 22], 'Text', 'Param1:');
param1 = uieditfield(paramPanel, 'numeric', 'Position', [120 140 100 22]);
% Add input fields for more parameters as needed
% Add more cases for different models
end
end
3. Once the parameters are filled in, you can pass them to the Simulink model using the “set_param” function when the user clicks a "Run" button. Add a button to trigger the model simulation.
% Add Run button to execute model
runButton = uibutton(fig, 'Position', [200 340 100 22], 'Text', 'Run Model', ...
'ButtonPushedFcn', @(btn,event) runSimulinkModel(paramPanel, modelDropdown));
4. Now provide the logic for retrieving values from parameter fields and running Simulink model.
function runSimulinkModel(paramPanel, modelDropdown)
selectedModel = modelDropdown.Value;
% Get the parameter values based on model
paramFields = findall(paramPanel, 'Style', 'uieditfield');
params = arrayfun(@(x) str2double(x.Value), paramFields);
% Open Simulink model
open_system(selectedModel);
% Set parameters in Simulink model
switch selectedModel
case 'Model1'
set_param([selectedModel, '/Block1'], 'Parameter1', num2str(params(1)));
% Set other parameters as needed
% Similarly, define cases for other models
end
% Run the Simulink model
sim(selectedModel);
% Plot results (dummy example)
plotPanel = findobj('Type', 'uipanel', 'Title', 'Output Plot');
ax = axes('Parent', plotPanel);
time = 0:0.1:10;
output = sin(time);
plot(ax, time, output);
end
This method enables you to create a custom GUI that can manage different models and their specific parameters.
To know more about the various GUI elements and “set_param” function, refer to the following documentation links:
