How to plot MESH only in black?

Can the 'mesh' plot be in a single color, say black, and not in color map?

Thanks.

Answer 1

[Kelly Kearney]

 mesh(x,y,z, 'edgecolor', 'k')

Answer 2

[José-Luis]

You could set the colormap to black only, and use surf instead.

[x,y] = meshgrid([-2:.2:2]);
Z = x.*exp(-x.^2-y.^2);
surf(x,y,Z)
colormap([0  0  0])

[José-Luis]

%Alternative 1
figure(1)
plot3(x,y,Z,'k-');

%Alternative 2
figure(2)
plot3(x',y',Z','k-');

Please accept an answer if it helped you.

Answer 3

[John]

'edgecolor' isn't a good way. It plots the "baseline" and appears very messy.

[Kelly Kearney]

What do you mean? A mesh plot doesn't have a "baseline"... perhaps you're seeing an artifact of your data? Can you give an example, or post a screenshot of your plot?

Answer 4

[John]

Unless using 'shading interp', both mesh and surf will plot the line linking 2 lines which is not desirable.

[x,y] = meshgrid([-2:.2:2]);

Z = x.*exp(-x.^2-y.^2);

surf(x,y,Z) or mesh(x,y,Z)

colormap([0 0 0]) % with or without this, crossing lines are plot;

shading interp; % only with this the crossing lines are cleared.

% but we only want the curve lines, not the crossing lines, not shading either.

[José-Luis]

curve lines? crossing lines? It would help a lot if you showed an example of what you want to achieve.

[José-Luis]

I tried to interpret what you mean. Please see comment to my original answer.

Answer 5

[Bjørn Kvamme]

I wanted to get this plot in shades of grey/black instead of colours but meshc does not accept "edgecolour"

load CH4_expT4

x3=CH4_expT4(:,1)

y3=CH4_expT4(:,3)

z3=CH4_expT4(:,2)

xv = linspace(min(x3), max(x3), 1000);

yv = linspace(min(y3), max(y3), 1000);

[X,Y] = meshgrid(xv, yv);

Z = griddata(x3, y3, z3, X, Y);

meshc(X,Y,Z,'edgecolor','k')

grid on

ylabel('Temperature (K)')

zlabel('Pressure (Bars)')

xlabel('time (hours)')