How to create a patch object without actually plotting it.

Hello everyone!

I have some data, say [X,Y,Z] and when I use the Patch command it creates a figure and gives me a shape.

I would like to supress the actual figure, and make the code display it later on.

My two problems are: 1) How do I supress the plotting of the patch? 2) How do I display a patch object in a new figure?

Thanks in advance!

Answer 1

[pfb]

 h=patch(X,Y,Z,'r','visible','off');

and then, when you need it

 set(h,'visible','on');

[pfb]

oh, if you want to copy the object in a different figure

 copyobj(h,a)

where a is the handle for the axes in the figure.

But perhaps the visible property spares you from copying the object in a figure. You could set it on and off as you need.

[luc]

Okay, the visibility off worked well, the part where I display it.. not that much.

My current code

      Patch_s=patch(XXX_s,YYY_s,ZZZ_s,1,'visible','off');

if m==1
    fv_combined1=Patch_s;
end

nv1=length(fv_combined1.Vertices);
fv_combined1.Vertices=[fv_combined1.Vertices;Patch_s.Vertices];
fv_combined1.Faces=[fv_combined1.Faces; Patch_s.Faces+nv1];

This is placed in a loop where I update the patch figure "fv_combined1" via its vertices and Faces.

I can't the code to display the fv_combined1.

figure(1)
copyobj(fv_combined1,1)

set(fv_combined1,'visible','on');
set(Patch_s,'visible','on');

This does not work :(

It gives me this error:

Error using copyobj
Patch cannot be a child of Figure.

Error in patchobjecttest (line 92)
copyobj(fv_combined1,1)

[luc]

Ignore comment. I removed the copyobject and everything was fine!