3D plot in appdesigner

why do i get 2D plot instead of 3D

        function startupFcn(app)
            cla (app.UIAxes,'reset')
            hold (app.UIAxes,'on')

            Pi = [0,0,0];
            Pii = [4,1,0];
            Piii = [1,4,0];
            Piv = [1,1,3];
            Pv = [1,1,0];

            pts0 = [Pi;Pii];
            pts1 = [Pi;Piii];
            pts2 = [Pii;Piii];
            pts3 = [Piv;Pv];
            
            plot3(app.UIAxes,pts0(:,1),pts0(:,2),pts0(:,3),'Color','b')
            plot3(app.UIAxes,pts1(:,1),pts1(:,2),pts1(:,3),'Color','b')
            plot3(app.UIAxes,pts2(:,1),pts2(:,2),pts2(:,3),'Color','b')
            plot3(app.UIAxes,pts3(:,1),pts3(:,2),pts3(:,3),'Color','r')
            
            xlabel(app.UIAxes,'length');
            ylabel(app.UIAxes,'width');
            zlabel(app.UIAxes,'height');
        end

Answer 1

[Hope Q]

Use the view command to set the perspective on the axes.

For example:

view(app.UIAxes,[-5 2 5])

https://www.mathworks.com/help/matlab/ref/view.html?searchHighlight=view&s_tid=doc_srchtitle

[Ni2]

I used it but it makes another window to pop up. And still the 3D view is missing

[Abdulrasheed Afolabi]

Thanks, it's a life saver.

[Ke Wei Ong]

Hi Ni2, did you find a way to plot without another pop-up window?

Answer 2

[Hope Q]

What version are you using?

I'm using R2019b Update 1 on 64-bit Windows.

I pasted your code into a new blank App with one UIaxes.

I added the line

view(app.UIAxes,[5 2 5])

as the last line in the startupFcn. The 3D plot was in the UIAxes as expected.

[Ni2]

Mine is 2018a on 64-bit windows and the output is unexpected.

[Ni2]

I just noticed mine one also work fine with view command in a single window app.

But my app is a sub app.