How can specify interval of variables in fsurf?
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I am following the documentation for fsurf:
There, I see an example:
f1 = @(x,y) erf(x)+cos(y);
fsurf(f1,[-5 0 -5 5])
However, I do not know what is the granularity of x and y. Let's say I am interested in x for -5 < x < 0 but interval should be 0.1, i.e. in MATLAB language it should be x= -5:0.1:0. Similarly, let say Y has -5:0.2:5
How should I accomplish that?
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Mathieu NOE
2021-4-7
hello
will do ,
maybe in the future TMW will let you choose a different mesh density for each direction...
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Mathieu NOE
2021-4-7
hi
see 'MeshDensity' — Number of evaluation points per direction
Control Resolution of Surface Plot
Control the resolution of a surface plot using the 'MeshDensity' option. Increasing 'MeshDensity' can make smoother, more accurate plots while decreasing it can increase plotting speed.
Create two plots in a tiled chart layout. In the first plot, display the parametric surface x=sin(s), y=cos(s), z=(t/10)sin(1/s). The surface has a large gap. Fix this issue by increasing the 'MeshDensity' to 40 in the second plot. fsurf fills the gap, showing that by increasing 'MeshDensity' you increased the resolution.
tiledlayout(2,1)
nexttile
fsurf(@(s,t) sin(s), @(s,t) cos(s), @(s,t) t/10.*sin(1./s))
view(-172,25)
title('Default MeshDensity = 35')
nexttile
fsurf(@(s,t) sin(s), @(s,t) cos(s), @(s,t) t/10.*sin(1./s),'MeshDensity',40)
view(-172,25)
title('Increased MeshDensity = 40')
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更多回答(1 个)
KSSV
2021-4-7
f1 = @(x,y) erf(x)+cos(y);
x = -5:0.1:0 ;
y = -5:0.2:5 ;
[X,Y] = meshgrid(x,y) ;
Z = f1(X,Y) ;
surf(X,Y,Z)
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