"Update traversal encountered invalid scene tree." error while using AppDesigner

Hello everyone, I am currently trying to represent the orientation of an object in a appdesigner interface i designed. I figured i can use the sensor fusion toolbox to visualize roll pitch and yaw data that i obtained from an external source. However, when i tried to plot it on a axes, it shows an empty 3d axes system and gives the error in the summary. It works just fine in MATLAB editor however i cannot make it work in appdesigner. Can you help me?

tp = theaterPlot('Parent',app.UIAxes7,'XLimit',[-2 2],'YLimit',[-2 2],'ZLimit',[-2 2]);
op = orientationPlotter(tp,'DisplayName','orientation','LocalAxesLength',2);

plotOrientation(op,roll(i),yaw(i),pitch)

Answer 1

[Ryan Salvo]

Hi Kaan,

I suspect the error may be caused by something besides the orientationPlotter. I was able to create a simple app in appdesigner and update the orientationPlotter with roll, pitch, and yaw values.

Thanks,

Ryan

Here is the code used to try the simple app:

myApp = app1_exported;
roll = 0; pitch = 0; yaw = 45;
update(myApp, roll, pitch, yaw);

Here is the simple app:

classdef app1_exported < matlab.apps.AppBase

    % Properties that correspond to app components
    properties (Access = public)
        UIFigure  matlab.ui.Figure
        UIAxes    matlab.ui.control.UIAxes
        OrientationPlot
    end

    
    methods (Access = public)
        
        function update(app, roll, pitch, yaw)
            plotOrientation(app.OrientationPlot, roll, pitch, yaw);
        end
    end
    

    % Component initialization
    methods (Access = private)

        % Create UIFigure and components
        function createComponents(app)

            % Create UIFigure and hide until all components are created
            app.UIFigure = uifigure('Visible', 'off');
            app.UIFigure.Position = [100 100 640 480];
            app.UIFigure.Name = 'MATLAB App';

            % Create UIAxes
            app.UIAxes = uiaxes(app.UIFigure);
            title(app.UIAxes, 'Title')
            xlabel(app.UIAxes, 'X')
            ylabel(app.UIAxes, 'Y')
            zlabel(app.UIAxes, 'Z')
            app.UIAxes.Position = [171 149 300 185];

            tp = theaterPlot('Parent',app.UIAxes,'XLimit',[-2 2],'YLimit',[-2 2],'ZLimit',[-2 2]);
            op = orientationPlotter(tp,'DisplayName','orientation','LocalAxesLength',2);
            plotOrientation(op, 0, 0, 0);
            app.OrientationPlot = op;

            % Show the figure after all components are created
            app.UIFigure.Visible = 'on';
        end
    end

    % App creation and deletion
    methods (Access = public)

        % Construct app
        function app = app1_exported

            % Create UIFigure and components
            createComponents(app)

            % Register the app with App Designer
            registerApp(app, app.UIFigure)

            if nargout == 0
                clear app
            end
        end

        % Code that executes before app deletion
        function delete(app)

            % Delete UIFigure when app is deleted
            delete(app.UIFigure)
        end
    end
end

[Kaan Ege Tirman]

Hello again and thank you for asnwer. I tried to run the code you provided with the answer but still, I get similar errors. I add the error messages below. By the way, I use 2020b release, maybe it causes problems?

[Ryan Salvo]

Hi Kaan,

I took a look at orientationPlotter in R2020b and R2021a and I did not see any changes. I suspect that the graphics framework was updated in App Designer in R2021a to resolve this error. I recommend upgrading to R2021a to resolve this issue. If that is not possible, please submit a support request to continue to investigate workarounds in R2020b.

Thanks,

Ryan