webgui

Hello NGSolve-Community,

we can now visualize meshes and solutions within jupyter notebooks !

Have a look at
ngsolve.org/docu/nightly/i-tutorials/wta/poisson.html
and the other whetting-the-appetite examples.

webgui is available in the NGSolve 20.05 release, and there are frequent updates and fixes in the nightly versions.

The main activists have been Matthias and Amanda, many thanks to them !

webgui already supports visualization of higher order scalar and vectorial fields, clipping planes, and animation of time-dependent and complex valued solutions.

With webgui you can run the IPython kernel on a server, and visualize locally within your jupyter session. It is also the basis for interactive computing in a cloud. With nbconvert you can generate html pages including interactive views for tutorials and presentation of your results.

webgui is based on webgl, threejs, and jupyter notebook extension.

Try it and enjoy it,
Joachim

Hi Joachim,

Can you be more specific on the prerequisites for getting webgui?

I updated ngsolve to version 2005, but the gui didn't pop up. I get the following string instead:
You mentioned "webgui is based on webgl, threejs, and jupyter notebook extension."
I have threejs install via pip, but how to get webgl?

Best,
Guosheng

Thank you for the great news.

you have to install the notebook extension like that: Just started the upload of the updated documentation.

Joachim

Works like a charm!
Thanks for this great adds-on.

Hello again,

Webgui is amazing. But I encounter a couple of questions:

Q1: How to modify default parameters in webgui? For netgen gui we have all the options in ngsolve.internal import visoptions, viewoptions to play with...

Q2: can you fix a bug for quads mesh? currently, the quad mesh only present a triangle instead of square for the element...

Best,
Guosheng