how to use amaze function with spinners value as an input

In app building onramp(task 5) im unable to link the amaze function with spinners value as an input

Answer 1

[Arun]

Hi,

I understand that in “App Building Onramp” you are facing difficulty to link the “Spinner” component value to the “amaze” function in task-5 of the “Add App Behavior > Add Different Components > (1/3) Value Changed Callback” section.

This might be due to not addressing the “Spinner” component value properly, here are steps that will help you to complete the task:

1. In the “Component Browser” section on the right of the Onramp window, click on the “app.GridSizeSpinner” component under “myapp >app.UIFigure” (the name of the spinner might be different based on the name you give to the spinner).
2. Click on the “Callbacks” tab.
3. For the “ValueChangedFcn” select the “NewMazeButtonPushed” from the drop-down menu.
4. Now, switch to “Code View” and add the following code:

[wall, wx, wy] = amaze(app.GridSizeSpinner.Value); %check the name in Component Browser.
plot(app.UIAxes,wall,"XData",wx,"YData",wy,"NodeLabel",[]) 
axis(app.UIAxes,"equal") 

This should help you complete the task. Here is a screenshot of successfully submitted task to help you with your implementation.

For more information, please refer the MATLAB documentation related to App building Components: https://www.mathworks.com/help/matlab/creating_guis/choose-components-for-your-app-designer-app.html

Hope this helps.

[Mohamed Kalid]

Thank you so much for the clear explanation! I was stuck trying to use imagesc, but your suggestion to use the plot function with XData, YData, and NodeLabel options worked perfectly. Appreciate the help and guidance — this saved me a lot of time!