How to use the function triplot to plot an stl file in a specific axis inside App Designer?

Question

Sreerup Banerjee 2020-9-8

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https://ww2.mathworks.cn/matlabcentral/answers/590662-how-to-use-the-function-triplot-to-plot-an-stl-file-in-a-specific-axis-inside-app-designer

评论： Alfin Junaedy 2021-10-31

I want to display a geometry saved in a stl file inside a specific axis in App Designer. When I use the syntax 'triplot(TR)', it displays the geometry in a separate figure.

It is mentioned in the topic Display Graphics in App Designer, that "Some functions (such as imshow and triplot) use a name-value pair argument to specify the target object. For example, this code shows how to call the imshow function in App Designer."

However, I cannot find any relevant name-value pair for triplot. I have tried using the syntax 'triplot(TR,'Parent',app.UIAxes). It does not give any error, but nothing is displayed.

Any solution to this problem is appreciated.

Thanks,

Sreerup

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Sreerup Banerjee 2021-1-14

Hi Tim! I have used the function 'trisurf'. It fulfilled my need.

Alfin Junaedy 2021-10-31

Just add 'drawnow'. It worked for me.

triplot(TR,'Parent',app.UIAxes); drawnow;

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Answer 1

Cris LaPierre 2021-1-14

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https://ww2.mathworks.cn/matlabcentral/answers/590662-how-to-use-the-function-triplot-to-plot-an-stl-file-in-a-specific-axis-inside-app-designer#answer_598300

编辑：Cris LaPierre 2021-1-14

在 MATLAB Online 中打开

When plotting in app designer, you need to tell the plotting function what axes to plot into. Although the documentation for triplot and trisurf do not describe this name-value pair, it does work. In an app, you'd use something like app.UIAxes. Below is just a simple example to show the syntax.

ax = axes;

P = rand(10,2);

T = delaunayTriangulation(P);

triplot(T,'Parent',ax)

And for a surface

figure

a2=axes;

[x,y] = meshgrid(1:15,1:15);

z = peaks(15);

T = delaunay(x,y);

trisurf(T,x,y,z,'Parent',a2)