[Date Index]
[Thread Index]
[Author Index]
Re: Warning regarding ListContourPlot3D
*To*: mathgroup at smc.vnet.net
*Subject*: [mg116061] Re: Warning regarding ListContourPlot3D
*From*: Brett Champion <brettc at wolfram.com>
*Date*: Mon, 31 Jan 2011 03:24:30 -0500 (EST)
On Jan 29, 2011, at 4:25 AM, Yen Lee Loh wrote:
> In Mathematica 7.0.1 on Linux x86-64, the example for ListContourPlot3D,
>
> ListContourPlot3D[
> Table[x^2 + y^2 - z^2 + RandomReal[0.1], {x, -2, 2, 0.2}, {y, -2, 2, 0.2},
> {z, -2, 2, 0.2}], Contours -> {0}, Mesh -> None]
>
> plots two cones with their axes in the x-direction (instead of the
> z-direction as would have been expected from the formula). Using
> AxesLabel->{"x","y","z"} verifies this. I don't really care (I don't use
> ListContourPlot3D much) but just thought I would put this out there, for
> reference by users of 7.0.1. I haven't checked if ListContourPlot3D behaves
> differently in Mathematica 8. -YLL
This actually depends on how you construct your table:
In[103]:=
t1 = Table[
x^2 + y^2 - z^2, {x, -2, 2, 0.2}, {y, -2, 2, 0.2}, {z, -2, 2, 0.2}];
In[104]:=
t2 = Table[
Table[Table[x^2 + y^2 - z^2, {x, -2, 2, 0.2}], {y, -2, 2,
0.2}], {z, -2, 2, 0.2}];
In[105]:= t1 == t2
Out[105]= False
In[107]:= t1 == Transpose[t2, {3, 2, 1}]
Out[107]= True
In[108]:= ListContourPlot3D[t2]
Out[108]= <<expected graphic>>
Brett Champion
Wolfram Research
Prev by Date:
**Re: loops in mathematica**
Next by Date:
**Re: Problems integrating InterpolatingFunction**
Previous by thread:
**Warning regarding ListContourPlot3D**
Next by thread:
**Re: matrix[m,n]**
| |