Mesh plot in GUI works, but in separate figure won't plot

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John Petersen
John Petersen 2012-8-6
I have a GUI with axes defined with a Tag 'axes1' When I plot
mesh(handles.axes1,x,y,z)
where x and y are column vectors, and z a 2d array, everything plots just fine on the GUI. But if I plot a figure separate from the GUI, it only plots the axis and the background is gray instead of white.
I've tried two approaches
figure; H=gca;
mesh(H,x,y,z);
and from http://www.mathworks.com/matlabcentral/answers/22208-show-figure I have tried
f = figure();
H = axes('Parent',f);
mesh(H,x,y,z);
but both approaches yield the same result. A figure with 3D axis and gray background. I can clear axes1 and replot to axes1 with no problem. I don't have the same problem with the mesh example in the help. That is,
[X,Y] = meshgrid(-8:.5:8);
R = sqrt(X.^2 + Y.^2) + eps;
Z = sin(R)./R;
mesh(H,X,Y,Z)
mesh(handles.axes1,X,Y,Z)
plots fine in both axes. X and Y are 2d vectors instead of 1d that I use, but I don't know if that has something to do with it. What am I not doing correctly to make the 3d plot in a separate figure?

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回答（2 个）

Seyhan Emre Gorucu
编辑：Seyhan Emre Gorucu 2012-8-6
a=figure;
axes1 = axes('Color',[1 1 1]);
[X,Y] = meshgrid(-8:.5:8);
R = sqrt(X.^2 + Y.^2) + eps;
Z = sin(R)./R;
mesh(Z);
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Seyhan Emre Gorucu
Seyhan Emre Gorucu 2012-8-6
编辑：Seyhan Emre Gorucu 2012-8-6
It means that you probably need to create another axes which would be:
figure
a=axes
[X,Y] = meshgrid(-8:.5:8);
R = sqrt(X.^2 + Y.^2) + eps;
Z = sin(R)./R;
mesh(Z);
Seyhan Emre Gorucu
Seyhan Emre Gorucu 2012-8-6
Please note that figure and axes are not the same things. Here you create new figure but you don't create new axes.

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Seyhan Emre Gorucu
编辑：Seyhan Emre Gorucu 2012-8-6
Hm. I have a GUI open and when I run my code I get a nice plot at another figure. I can't see why it doesn't work for you. I hope somebody resolves the problem.

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