vedo, formerly known as vtkplotter

As noted in #44, matplotlib distorts three-dimensional views uncontrollably. Some very nice plots were added to #357 using vtkplotter. It might be a worthwhile addition to skfem.visuals #286. (I haven’t looked at the licence or portability.)

[gdmcbain]

A quick experiment went well.

On a laptop running Microsoft Windows 10

pip install vtkplotter

Then after having run ex32.py from #342, run

from vtkplotter import Plotter

vp = Plotter()
vp.load('ex32.vtk')
vp.show()

This pops up a ‘Visualization Toolkit Win32OpenGL’ showing a green triangulated ellipsoid which can be rotated, translated, and zoomed with the mouse.

• Hit ‘h’ in this window to display help back in the terminal.
• Hit ‘4’ to cycle through scalars to colour by; here twice for pressure.
• Hit ‘s’ to save screenshot.png.

This does nicely show the p ~xy pattern expected from creeping convection in a horizontally heated ellipsoid.

I assume this could be scripted, once I read the docs.

[kinnala]

I’ve been encountering issues trying to run this in a docker container, I’m only developing inside containers nowadays.

I think I have to next try it out in a Ubuntu 20.04 virtual machine.