Adjust the view of UIAxes

I plot a stl file by pressing a button. Then I rotate it around and change the view. And when I click on the button again, the view goes back to the default position.

I don't want it to go back to the deafult. I want it to use the latest view. But this doesn't work and still goes back to the default:

function ButtonPushed(app, event)
         X = get(app.UIAxes,"View");
         set ( app.UIAxes,"View", X);

         data = stlread ("model.stl");
         trisurf (data,'Parent', app.UIAxes);
end 

Answer 1

[Walter Roberson]

Try

function ButtonPushed(app, event)
         X = app.UIAxes.View;
         data = stlread ("model.stl");
         trisurf (data,'Parent', app.UIAxes);
         drawnow;
         app.UIAxes.View = X;
end 

[Pelajar UM]

Thanks a lot. This works but you can see that the view angle is being changed (first it goes to default and then immediately to the new angle). Is there a way to set the view before plotting the stl, so that you cannot see the switching?

Edit: I could do this by removing "drawnow" but somehow then I cannot rotate the model. When I click, it pans instead....

[Walter Roberson]

You could try moving the drawnow() to below setting the View.

I have been working on a different question having to do with App Designer in which the user was getting strange angles and sizes, and setting the view was not working; the workaround there was to drawnow() before setting view. (I suspect the matter was related to the CameraPosition the user had set.)

[Pelajar UM]

Thanks. Moving the drawnow to below setting the View is the same as removing it.

It works but then I cannot rotate the model unless I add:

rotate3d (app.UIAxes, "on");

but in that case the zoom feature is disabled.

[Walter Roberson]

Historically those operations were mutually exclusive. I don't know about app designer in that regard.

[Pelajar UM]

I see. Is there a way to combine the click with a key to switch between zoom and rotate?

In a typical 3D/CAD software, you hold down Ctrl or shift and then you can rotate.

[Walter Roberson]

I do not know with regards to app designer.

[Pelajar UM]

For anyone else wondering, this works:

ax=app.UIAxes;
ax.Interactions = [rotateInteraction zoomInteraction];

[Walter Roberson]

Oh, that looks useful!