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K3D-tools / K3D-jupyter

K3D lets you create 3D plots backed by WebGL with high-level API (surfaces, isosurfaces, voxels, mesh, cloud points, vtk objects, volume renderer, colormaps, etc). The primary aim of K3D-jupyter is to be easy for use as stand alone package like matplotlib, but also to allow interoperation with existing libraries as VTK.
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How could one integrate k3d with pyviz panels? #447

Open ea42gh opened 5 months ago

ea42gh commented 5 months ago

Description

panel used to have a pane that would display k3d plots. That pane is no longer available due to code refactoring.

I suspect using one of the current panes might work easily, but do not know how to integrate the two?

ichko commented 3 months ago

Hey, I also stumbled upon this issue.

Minimal code example to reproduce in a notebook environment:

import k3d
plot = k3d.Plot()
plot += k3d.points([0, 0, 0])

pn.Column("a", pn.panel(plot), "b")

and the generated plot is empty.

Going to the console you get this error message:

TypeError: world.cleanup is not a function
    at K3D.disable (Core.js:1217:1)
    at refresh (Canvas.js:211:1)
    at module.exports (Canvas.js:281:1)
    at new K3D (Core.js:1234:1)
    at PlotView._init (k3d.js:323:1)
    at f (backbone.js:335:57)
    at g (backbone.js:322:19)
    at d (backbone.js:110:16)
    at a.trigger (backbone.js:312:5)
    at r.render (panel.min.js:120:1118)

and this comes from a part of the code responsible for k3d teardown... maybe..

image

going up a stack frame:

image

It is interesting that the error occurs whilst teardown, which I suppose is not what we want while trying to show a plot.

There is also an unresolved discussion about this in the holoviz forum - https://discourse.holoviz.org/t/panel-meets-k3d-jupyter/1604/17

I would love to be able to show a k3d plot in a panel application.