Missing part on 3D plot

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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Missing part on 3D plot #452

Open GiudiceVitor opened 7 months ago

GiudiceVitor commented 7 months ago

I am plotting 3d cubes. Most work fine, but I have found some weird artifacts on some, like this one:

Notice we have a missing part on the cube. I checked, and this is not a problem on the data (there are not NaN values, nor 0s). When plotting a single slice of this cube on matplotlib, we get:

Notice the black part near y=40 is the missing part on the k3d plot. It's just a part with lower values (close to -0.4) with the exact same value all along.

What would that interaction with k3d be?

artur-trzesiok commented 4 months ago

Hi @GiudiceVitor Can you tell me what k3d object it is. k3d.voxels?

GiudiceVitor commented 4 months ago

It is a k3d.volume

artur-trzesiok commented 4 months ago

@GiudiceVitor can you share data with me? artur.trzesiok@gmail.com

GiudiceVitor commented 4 months ago

I'm afraid I cannot :'( It is sensitive data and tbh I don't recall specifically what data point that was. Sorry. I don't know If this will be too difficult to reproduce, because it is not very common, from my experiment with k3d (happened only with one or two data points only)