Stl file pdegplot in App designer

Question

Jigar 2024-5-17

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2119926-stl-file-pdegplot-in-app-designer

编辑： Cris LaPierre 2024-5-20

Hi,

I am looking for a solution to find names of the faces after importing the stl file. pdegplot command does that but how can I use it in App Designer. I am trying the command but it throws different error. Looked for a solution but it isn't available.

Is there any other command where i can use it to see name faces in the App designer so that i can use it to apply BC.

Thanks,

Jigar

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Cris LaPierre 2024-5-17

What error are you getting? Please share all the red text.

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Answer 1

Adam Danz 2024-5-17

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2119926-stl-file-pdegplot-in-app-designer#answer_1459661

编辑：Adam Danz 2024-5-17

在 MATLAB Online 中打开

> pdegplot command does that but how can I use it in App Designer?

pdegplot does not have an input argument or property to specify the parent axes. This often poses a propblem in AppDesigner and uifigures in general since the default HandleVisible property in uifigures is 'off'. This prevents pdegplot from finding the axes within the uifigure resulting in the generation of a new figure external to the app.

I suppose this is the problem you're running into.

This workaround describes how to temporarily make the app's axes accessible and current so that the pdegplot will add content to the existing axes.

Here's a quick example. See the previous link for details.

% Mimick an app

app.UIFigure = uifigure();

app.UIAxes = uiaxes(app.UIFigure);

% Change handle visibility

origState = app.UIFigure.HandleVisibility;

handleVisCleanup = onCleanup(@()set(app.UIFigure,'HandleVisibility',origState));

app.UIFigure.HandleVisibility = 'on';

% Make axes current

set(groot, 'CurrentFigure', app.UIFigure)

set(app.UIFigure,'CurrentAxes',app.UIAxes)

% Plot pdegplot

g = [2 1 1 1 1 1 1 1 1 4 4;

-1 -0.6 -0.5 -0.4 -0.5 0.4 0.5 0.6 0.5 -1 0.17;

1 -0.5 -0.4 -0.5 -0.6 0.5 0.6 0.5 0.4 0.17 1;

0 -0.25 -0.35 -0.25 -0.15 -0.25 -0.35 -0.25 -0.15 0 -0.74;

0 -0.35 -0.25 -0.15 -0.25 -0.35 -0.25 -0.15 -0.25 -0.74 0;

0 0 0 0 0 0 0 0 0 1 1;

1 1 1 1 1 1 1 1 1 0 0;

0 -0.5 -0.5 -0.5 -0.5 0.5 0.5 0.5 0.5 0 0;

0 -0.25 -0.25 -0.25 -0.25 -0.25 -0.25 -0.25 -0.25 0 0;

0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 1 1;

0 0 0 0 0 0 0 0 0 0.75 0.75;

0 0 0 0 0 0 0 0 0 0 0];

pdegplot(g)

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Jigar 2024-5-17

在 MATLAB Online 中打开

Hi @Adam Danz and @Cris LaPierre, thanks for your inputs. Below is the error I encountered while executing the code:

Error using pdeigeom
Index in position 1 exceeds array bounds.
Error in pdegplot>plotTwoDGeometry (line 113)
d=pdeigeom(g,1:nbs);
Error in pdegplot (line 100)
        hh = plotTwoDGeometry(g, plotVertexLabels, plotEdgeLabels, plotSubLabels);
Error in app1/UpdateButtonPushed (line 100)
            createGeometryPlot(app);

I tried with your Matlab code:

function createGeometryPlot(app)

% Mimick an app

app.UIFigure = uifigure();

app.UIAxes = uiaxes(app.UIFigure);

% Change handle visibility

origState = app.UIFigure.HandleVisibility;

handleVisCleanup = onCleanup(@()set(app.UIFigure,'HandleVisibility',origState));

app.UIFigure.HandleVisibility = 'on';

% Make axes current

set(groot, 'CurrentFigure', app.UIFigure)

set(app.UIFigure,'CurrentAxes',app.UIAxes)

% Plot the geometry using pdegplot

pdegplot(app.smodel, 'FaceLabels', 'on', 'FaceAlpha', 0.5);

end

what did I miss? Also I am using R2022a. Thanks again for your inputs.

Jigar 2024-5-18

编辑：Jigar 2024-5-18

在 MATLAB Online 中打开

Sharing properties and methods that i have created.

    properties (Access = private)
        new_x % Description
        new_y
        new_z
        range_z
        stlFile
        smodel
    end
    
    methods (Access = public)
        
        function results = func(app)
            app.smodel = createpde('structural','static-solid');
            importGeometry(app.smodel,app.stlFile);
            face_in_geom = ;
      
        end
        function createGeometryPlot(app)
            % Mimick an app
            app.UIFigure = uifigure(); 
            app.UIAxes = uiaxes(app.UIFigure); 
            % Change handle visibility
            origState = app.UIFigure.HandleVisibility; 
            handleVisCleanup = onCleanup(@()set(app.UIFigure,'HandleVisibility',origState));
            app.UIFigure.HandleVisibility = 'on'; 
            % Make axes current
            set(groot, 'CurrentFigure', app.UIFigure)
            set(app.UIFigure,'CurrentAxes',app.UIAxes)
            % Plot the geometry using pdegplot
            pdegplot(app.smodel,"FaceLabels","on","FaceAlpha",0.5);
            
            
        end
    end
    
    % Callbacks that handle component events
    methods (Access = private)
        % Button pushed function: FileuploadButton
        function FileuploadButtonPushed(app, event)
            [filename, pathname] = uigetfile({'*.stl'},'File Selector');
            if ~isequal(filename,0)
                app.stlFile = fullfile(pathname,filename);
                %app.stepFile = fullfile(pathname,filename);
                [F,~] = stlread(app.stlFile);
                % Do something with F and V   
                x=F.Points(:,1);
                y=F.Points(:,2);
                z=F.Points(:,end);
                min_x=min(x);
                min_y=min(y);
                min_z=min(z);
                app.new_x = x-min_x;
                app.new_y = y-min_y;
                app.new_z = z-min_z;
                Max_point_z = max(app.new_z);
                Max_point_x = max(app.new_x);
                Max_point_y = max(app.new_y);
                app.FileNameLabel.Text = filename;
                app.SummaryTextArea.Value = sprintf(['File uploaded successfully!\nMax_point in z direction = %f \n' ...
                'Max_point in x direction = %f \nMax_point in y direction = %f \nPlease click on Update button'],...
                Max_point_z,Max_point_x,Max_point_y);
                app.SummaryTextArea.FontColor = 'b';
                app.FileuploadButton.BackgroundColor = [0.98,0.88,0.85];
                app.UpdateButton.BackgroundColor = [0.86,0.95,0.82];
                
                app.UpdateButton.Enable = "on";
                
                
            else
                app.SummaryTextArea.Value = 'File upload failed.';
                app.SummaryTextArea.FontColor = 'r';
                app.FileuploadButton.BackgroundColor = [0.86,0.95,0.82];
                app.UpdateButton.BackgroundColor = [0.98,0.88,0.85];
                app.FileNameLabel.Text = "File Name";
                
                app.UpdateButton.Enable = "off";
                
            return;
            end
        end
        % Button pushed function: UpdateButton
        function UpdateButtonPushed(app, event)
            %pdeplot3D(app.smodel,"ElementLabels","on","FaceAlpha",0.5);
            %app.UIFigure.HandleVisibility = 'callback';
            createGeometryPlot(app);
            %app.UIFigure.HandleVisibility = 'off';
        end
    end

Jigar 2024-5-19

编辑：Jigar 2024-5-19

editing

I take my words back. It is working with an app property. Thanks for all the help!

Adam Danz 2024-5-20

Glad that it all worked out, thanks for the demo @Cris LaPierre!

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