[Feature] Support for LZMA vtk files

[skoloCFD]

Feature Request

Given the smaller filesize of vtk encoded with LZMA, and the support in paraview/vtk-python for this compression type, native support in vtk.js could be useful.

Motivation and Detailed Description

See above

[daker]

Thanks for the report, maybe if you could attach an example file in case someone wants to work on that.

[skoloCFD]

Certainly! Here's a small example - zipped because github won't accept .vtp uploads.

vtp_LZMA_example.vtp.zip

When reading this in with vtk.js, the error message is quite clear:

Invalid compressor vtkLZMADataCompressor

[jourdain]

That will be easier to manage via wasm than plain JS.

[daker]

@jourdain what do you recommend to use ? i was thinking about using Lzip but this means creating a package and publish it on npm

[jourdain]

I was thinking you can get such reader today using itk-wasm. They have a vtp reader which already include LZMA compression support. You can see that by loading that example file within Glance.