Colorbars are z-stacked on top of each other

[banesullivan]

If a VTK scene has multiple scalar bars, the exported VTK.js scene has the scalar bars Z-stacked on top of eachother. I'm wondering if there is a way to lay these out better

import pyvista as pv
pl = pv.Plotter()
pl.add_mesh(pv.Sphere(center=(16, 0, 0), radius=5).elevation(), cmap='terrain')
pl.add_mesh(pv.Wavelet())
pl.export_html('scene.html')
pl.show()

PyVista Scene	Exported VTK.js Scene

I actually typically see them right on top of each other even though in this example they are slightly offset

[jourdain]

To fix that specific issue, we would need to capture positional information and allow vtk.js to understand those in a way that can override its auto-layout.

I'm not sure that is worth the work as wasm is getting better everyday and is already able to support PBR and more.

[banesullivan]

If the wasm serializer is able to capture everything in the render window 1:1 like this then I agree it is not worth fixing in the vtk.js serializer

[jourdain]

Yes that is the idea as we have 1 to 1 mapping as the code is the same between VTK/C++ and VTK/WASM.

[jourdain]

If PyVista can use vtk>=9.4, you should be able to test/validate that it is already working.

[banesullivan]

Will do! Perhaps with the holiday weekend I can finally get around to finishing VTK 9.4 support in PyVista

[alecmkrueger]

Is the fix implemented yet? I would like to be able to use more than one colorbar in my exported html.