使用Mayavi和Mlab绘制“气泡”

Question

Currently, I am attempting to plot some "bubble" like shapes in a 3D space using Mayavi/Mlab. These bubbles are represented by a numpy array of shape (840,1100,30) where the parameters represent (x,y,z) and the value at any x,y,z is either 1 or 0. The array can be thought of as a collection of Voxels that are either on or off. I try to plot this data with the following commands:

mlab.contour3d(finalVolume)
mlab.show()

But the plot is coming out in 2 dimensions instead of in 3 dimensions. I have looked at the documentation but am having trouble understanding. If anyone could provide some help or a push in the right direction, then I would be very appreciative! Thanks!

Answer 1

Sounds like you need to use volume rendering to accomplish this. This can be accomplished using:

mlab.pipeline.volume(mlab.pipeline.scalar_field(s), vmin=0, vmax=0.8)

You will need to adjust the opacity transfer function using vmin and vmax to make an appropriate image. Examples on volume rendering can be found at: http://docs.enthought.com/mayavi/mayavi/mlab.html