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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.
MIT License
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marching_cubes with color from array #427

Closed sTamaroTum closed 6 months ago

sTamaroTum commented 11 months ago

Hi, is it possible to give a color to the iso surfaces that come out of k3d.marching_cubes(A) based on an array with the same dimensions as A? Right now I could only set a uniform color. Thanks.

artur-trzesiok commented 10 months ago

I like that idea :)

artur-trzesiok commented 10 months ago

image Will be available in next release :) - thanks for inspiration!

artur-trzesiok commented 10 months ago

example is on devel: https://github.com/K3D-tools/K3D-jupyter/blob/devel/examples/marchingcubes_with_attribute.ipynb

sTamaroTum commented 5 months ago

Hi! Thanks a lot for implementing this, it is a nice feature. When I tried it I was a bit confused, since the velocity colors seem to be on different coordinates than what I expected.

To double-check, I tried marching cubes on an array with a certain level x, and then I asked for a color attribute using the same array. I would expect the color to be uniform and equal to x, but, it is not. Could this be? Thanks!