MATLAB: How to remove the space between plotted data and the axis (surf)

3d plotsaxisspace between plot and axissurf

Is it possible to remove the space between the axis and the plot? The problem:

I using surf and x-y view. Other plot functions such as contour are not an option in my case.

Minimum working example:

plot_data=rand(25,25);
surf(plot_data)
grid on
axis square
set(gcf,'color','w')
view(0, 90)

Thanks for the help!

Best Answer

Adding ‘axis tight’ seems to do what you want:

plot_data=rand(25,25);
surf(plot_data)
grid on
axis square
set(gcf,'color','w')
view(0, 90)
axis tight

To wit:

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MATLAB: Surface plot with semilog z-axis: how to keep the same axis limit for iterative plots

Use

zlim([zMIN zMAX])

that you want before beginning the iteration.

Didn't read carefully enough, sorry...you're using mutually exclusive commands and the last in effect are those from axis...

doc axis
...
axis tight sets the axis limits to the range of the data and sets the
XLimMode, YLimMode, and ZLimMode properties to auto. 
Use axis tight manual to set the limit mode properties to manual.
...

So, right after you set the z-axis limit manually your overwrite it and set it back to 'auto' with the axis tight call.

Try something more like...

for i = 1:4
  hAx(i)=subplot(1, 4, i);  % save the axes handles always
  surf(x, y, errPreStore{i});
end
set(hAx,'zscale','log')
axis(hAx,'square')
axis(hAx,'tight', 'manual')
set(hAx,'zlim',axi_lim)

which results in

MATLAB: Hello everyone, I wrote a code for computing an equation and plot in 3-D (surf)? but it didn’t give me a right answer! what is the problem? Also the plot is attached.

When dealing with arrays, unless you specifically intend too do matrix operations, always use element-wise operations (the dot operator).

Try this:

w3=0:0.1:5;
t=0:0.01:5;
w=107.36; d=150; x=410;
[a,b]=meshgrid(w3,t);
z=abs((4.22E-3)*(a.^2)./((w.^2)-(a.^2))).*sin((pi*d)/820).*sin((pi*x)/820).*sin(a.*b);
figure
surf(a,b,z, 'EdgeColor','none')

producing:

Also, eliminating the edge line color makes the patch faces visible.

Best Answer

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MATLAB: Surface plot with semilog z-axis: how to keep the same axis limit for iterative plots

MATLAB: Hello everyone, I wrote a code for computing an equation and plot in 3-D (surf)? but it didn’t give me a right answer! what is the problem? Also the plot is attached.

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