[with patch, positive review] mesh=True and dots=True don't work for 3D plots

[wcauchois]

Just like the title says; the options noted do not have any effect on 3D plots in Sage 4.0.rc0.

For example, the command

plot3d(lambda x,y: exp(x+y*I).real(), (-2, 2.4), (-3, 3), mesh=True)

Should display a 3D plot with mesh lines drawn in. However, the result does not have mesh lines.

(This bug was discussed at  this forum thread.)

I will attach a patch that fixes the issue.

[wcauchois]

based on sage 4.0.rc0

[wcauchois]

Does anyone know where this functionality was broken, and what the code was like before?

[mhampton]

This seems to fix the problem and not cause others in the limited testing I have done. Since it is a surgical-strike type of patch I feel good about giving it a positive review - this is basically two extra lines that correctly pass on an option.

[mhansen]

Merged in 4.0.1.rc0.