Questions on the Mayavi mlab API, for scripting Mayavi using Python
Additional information:
- MLab reference - Reference list of all the main functions of mayavi.mlab with documentation and examples.
- Documentation
Questions tagged [mayavi.mlab]
131 questions
8
votes
1 answer
Mayavi how to show the axes grid
In Mayavi I would like to see the grid of the axes in the following plot
# Source: <>.
import numpy as np
from mayavi import mlab
# Test data: Matlab `peaks()`
x, y = np.mgrid[-3:3:50j, -3:3:50j]
z =…
Adriaan
- 715
- 10
- 22
7
votes
2 answers
how to create a 3D height map
I have a 2D array Z that stores the height at that element's position. Other than using the method here in which I need to create array X and Y with the same size as Z, are there any simpler methods to create a 3D height map?
The 3D surface height…
Physicist
- 2,848
- 8
- 33
- 62
7
votes
1 answer
Is it possible to plot implicit 3d equation using sympy?
Is there a way to plot a 3 variable implicit equation using sympy. Going by docs it has only support for implicit 2d plots. Or are there any other options for plotting a 3d plot using python where the equation can be an input from user
Srinath Mandava
- 3,384
- 2
- 24
- 37
6
votes
1 answer
mayavi mlab.savefig() gives an empty image
I am trying to learn mayavi2 for python and can not get my savefig to show my plots.
I found this example code:
from numpy import pi, sin, cos, mgrid
dphi, dtheta = pi/250.0, pi/250.0
[phi,theta] =…
Johan
- 105
- 1
- 6
6
votes
1 answer
Does Mayavi "Font Size" text property work?
Is there a bug in the Mayavi font rendering that prevents changing the font size? I am using the Mayavi2 GUI to change the font size of the axis labels on a volumetric plot.
To get there I go to: Scene -> Scalar Field -> Colors and Legends -> Axes…
paradiso
- 379
- 3
- 14
5
votes
1 answer
Plot 3D curve on top of 3D surface
I'm trying to plot a 3D curve on top of a 3D surface in Matplotlib, but when the curve is in front of the surface, it is barely visible (the curve is the image of the unit circle):
There should be a green curve floating one unit above the…
tttapa
- 1,397
- 12
- 26
5
votes
0 answers
Importing mlab from mayavi or vtk : the kernel died
I have tried installing mayavi for several days, without results. I'm using spyder and anaconda. I can import mayavi on spyder without problem, but when I try importing vtk or from mayavi import mlab, the kernel died. I read a lot on the subject…
Amanda H
- 51
- 1
5
votes
2 answers
How to set parallel perspective on a 3d plot
I have a code in python to render a few spheres in python that looks like this:
%matplotlib inline
import numpy as np
import matplotlib.pyplot as plt
import random
import mayavi
from mayavi import mlab
N = 4;
diams = .4*np.ones([N]);
xvals =…
anon01
- 10,618
- 8
- 35
- 58
5
votes
1 answer
Enthought Canopy Mayavi font size bug
The font size setting in Enthough Canopy Mayavi mlab appears to be broken.
Neither the command:
mlab.axes.label_text_property.font_size = 12 (e.g.)
nor the direct menu font size command (advanced settings) works.
I have logged a bug report with…
dcnicholls
- 391
- 1
- 5
- 15
5
votes
1 answer
Constrain Mayavi mouse drag to rotating Earth around its axis
Using iPython Notebook, I have been able to bring up a globe of the Earth with code like:
from mayavi import mlab
from mayavi.sources.builtin_surface import BuiltinSurface
ocean_blue = (0.4, 0.5, 1.0)
r = 6371 # km
sphere = mlab.points3d(0, 0, 0,…
Brandon Rhodes
- 83,755
- 16
- 106
- 147
4
votes
0 answers
Mayavi : surface plot and 3D contours
Good evening everyone, I am a long time user of Matplotlib and I recently discovered Mayavi.
With Matplotlib, I can plot a 3D surface with projected contours of the surface plot for each axis and I was wondering if the same could be done with…
Loïc Poncin
- 511
- 1
- 11
- 30
4
votes
0 answers
Mayavi.mlab: scale/limit/set axes or aspect ratio
I have data that essentially looks like that: (minimum working example)
import mayavi.mlab as mlab
pts = mlab.points3d([1,2,3,4,5], [1,2,3,4,5], [1,2,3,4,500], [1,2,3,4,100])
mlab.show()
And this already shows my problem: because of the huge…
Julian
- 299
- 2
- 15
4
votes
1 answer
mayavi mapping a discrete colorbar on a surface
I want to change the color of a surface depending on another value (an ID) that takes discrete values (so I need a discrete colorbar).
In the simplified example below I have drawn a sphere with 3 different IDs:
0/red on the left
2/blue on the…
Yohann Morille
- 153
- 7
4
votes
1 answer
MayaVi: mlab segfaults on display
I am trying to learn MayaVi, but getting stuck on opening figures.
Displaying figures in mlab just results in a segfault. It does not seem to matter what I plot, so I think that the problem is in the act of displaying, not in the object I am trying…
user2569840
- 51
- 5
4
votes
2 answers
invert colormap in mlab
I simply want to know how to invert a colormap in mlab. I know in matplotlib you can simply add _r to the name of the colormap to invert the color scheme. However it appears to be slightly different in mlab. Does anyone know how this can be…
user1750948
- 719
- 2
- 10
- 27