added a simple program to export files in .vdb format

[spyke7]

Hi @orbeckst
I have added OpenVDB.py inside gridData that simply export files in .vdb format. Also I have added test_vdb.py inside tests and it successfully passes.
It resolves issue #141

Required Libraries -
openvdb

• conda install -c conda-forge openvdb

There are many things that need to be updated like docs, etc, but I have just provided the file and test so that you can review it, and I can fix the problems. Please let me know if anything needs to be changed and updated.

[codecov]

Codecov Report

❌ Patch coverage is 24.56140% with 43 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.20%. Comparing base (abd0feb) to head (22a5995).

Files with missing lines	Patch %	Lines
gridData/OpenVDB.py	21.27%	37 Missing ⚠️
gridData/core.py	25.00%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #148      +/-   ##
==========================================
- Coverage   87.70%   83.20%   -4.50%     
==========================================
  Files           5        6       +1     
  Lines         748      804      +56     
  Branches       97      107      +10     
==========================================
+ Hits          656      669      +13     
- Misses         56       99      +43     
  Partials       36       36              

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[spyke7]

@orbeckst , please review the OpenVDB.py file. After that, I will add some more test covering all the missing parts

[orbeckst]

Thank you for contribution. I’m currently on holidays and will come back to reviewing open source contributions in the new year. Am 12/27/25 um 03:16 schrieb Shreejan Dolai ***@***.***>:spyke7 left a comment (MDAnalysis/GridDataFormats#148) @orbeckst , please review the OpenVDB.py file. After that, I will add some more test covering all the missing parts —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you were mentioned.Message ID: ***@***.***>