how to color a surface?

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roro6992 2013-8-25

Evrytime i try to color a surface the entire plot comes out to be pitch black in color. i tried these codes..please temme if they r right or wrong.

figure(6)
colormap hsv
surf(ti,X,P_s)
colorbar
ylabel('Distance along pipeline (m)')
xlabel('time (hours)')
zlabel('Pressure (bar)')
grid on

plzz help!

roro6992 2013-8-25

编辑：roro6992 2013-8-25

When n where to use the opengl software command.?? Anyway thnx for helping man.

Walter Roberson 2013-8-25

The "opengl" command could be used at any point.

Youssef Khmou 2013-8-26

I think your data have many isosamples, that makes the colormap concentrated because of the interpolation,add this command before using colormap :

shading interp

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