Re: Maximum size for mesh() plot?

[Ben Abbott]

On Jan 29, 2009, at 7:12 PM, asfarley wrote:

> Hi everyone, is there a maximum meshgrid size for the mesh()  
> function? These
> commands produce the expected output:
>
> x = [0:0.1:5];
> y = [0:0.1:10];
> [xx,yy] = meshgrid(x,y);
> z = sin(xx).*sin(yy);
> mesh(x,y,z);
>
> But these commands either give no results, or cause octave to hang:
>
> x = [0:0.1:50];
> y = [0:0.1:100];
> [xx,yy] = meshgrid(x,y);
> z = sin(xx).*sin(yy);
> mesh(x,y,z);
> --

I tried the 2nd example. A half hour later, gnuplot is still sucking  
my cpu, but still no result. Checking my Mac OSX activity monitor,  
gnuplot is using about 1GB of memory ... real (18*MB) and virtual (796  
MB) memory.

GIven the amount of virtual memory, I don't expect a plot any time  
soon :-(

Perhaps the problem is with gnuplot, and not with Octave.

... opps, it just finished. Figure attached.

I recommend you try something that doesn't oscillate as rapidly.

Ben