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

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

[Tim Felix Liesching]

did you find a solution? I've got the same issue?

[Sreerup Banerjee]

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

[Alfin Junaedy]

Just add 'drawnow'. It worked for me.

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

Answer 1

[Cris LaPierre]

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)