Bug introduced in 10.0.1 or earlier and fixed in

Original Post

The documentation gives the following code and says "Use a red mesh in the x direction and a blue mesh in the y direction:"

{ParametricPlot[{u Cos[u], u Sin[u]}, {u, 0, 4 Pi}, Mesh -> 15, MeshFunctions -> {#1&, #2 &},
 MeshStyle -> {Red, Blue}, Mesh -> Automatic], ParametricPlot[{(v + u) Cos[u], (v + u) Sin[u]}, 
 {u, 0, 4 Pi}, {v, 0, 5}, MeshFunctions -> {#1 &, #2 &}, MeshStyle -> {Red, Blue},
 Mesh -> Automatic]}

but when you run the code, you'll find the meshes in second plot are both blue.

enter image description here

While in v9, this works as expected.

Is this a bug? (BTW, I'm using Windows7 32bit, Mathematica v10.0.1.0)

  • $\begingroup$ This does seem like a bug to me. However in the future please wait for confirmation or consensus before adding the bugs tag. $\endgroup$ – Mr.Wizard Oct 20 '14 at 7:12
  • $\begingroup$ @Mr.Wizard OK. I'll remove the tag. $\endgroup$ – luyuwuli Oct 20 '14 at 7:17
  • $\begingroup$ Why is Mesh-> occurring twice in the first one? $\endgroup$ – Kellen Myers Oct 20 '14 at 11:57
  • $\begingroup$ @KellenMyers Keen observation... I don't know. I just copied this piece of code from the documentation (the third example in Parametric-Options-MeshStyle). However, it won't affect the second plot if you correct or even remove the first plot. $\endgroup$ – luyuwuli Oct 20 '14 at 16:39
  • $\begingroup$ I noticed that it has no effect .. I was wondering / hoping it might be part of what was going on, but it doesn't help. I'm perplexed because this does seem to work for other types of plots (e.g. DensityPlot). $\endgroup$ – Kellen Myers Oct 20 '14 at 19:06

This bug is fixed in v10.0.2.0.

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