ras-commander-fast-hdf
A native (Rust) reader for HEC-RAS HDF files, used by ras-commander.
Install it next to ras-commander and the Hdf* classes read plan results,
geometry, terrain and land-cover HDF files through this engine instead of
h5py. Results are identical (values, dtypes, columns, index, CRS, attributes
and exceptions). Large reads are faster: 2D cell polygons 4–19× depending on
mesh size, and mesh time series 2–7× on large meshes. Small reads are a few
milliseconds slower.
Install
pip install ras-commander ras-commander-fast-hdf
from ras_commander import fast_hdf
fast_hdf.available() # True
Wheels: Windows x64, Linux x64 (manylinux_2_28) and macOS arm64, CPython
3.10 or later. No HDF5 C library or Rust toolchain is needed to install.
Windows and Linux are qualified against HEC-RAS result files; macOS builds
and passes the smoke tests but has not been qualified.
Engine modes
Choose the mode with RAS_COMMANDER_FAST_HDF:
| Value | Behavior |
|---|---|
auto (default) |
Native where it is qualified; h5py whenever the engine refuses a read. |
h5py |
Never use the native engine. |
native |
Native or raise FastHdfError; for testing and qualification. |
Links
- User guide: https://rascommander.info/ras/native-engine/
- Source, developer docs and issues: https://github.com/gpt-cmdr/ras-commander-fast-hdf
- Changelog: https://github.com/gpt-cmdr/ras-commander-fast-hdf/blob/main/CHANGELOG.md
License
MIT license. The wheel includes the licenses of every bundled crate in
THIRD-PARTY-NOTICES.md.
ras-commander-fast-hdf is an independent open source project. HEC-RAS is developed by the U.S. Army Corps of Engineers Hydrologic Engineering Center (HEC). This project is not affiliated with, endorsed by, or supported by HEC or USACE.
1 maintainer
Metadata
1 maintainer
Release files for ras-commander-fast-hdf 0.1.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
|---|---|---|---|---|
| ras_commander_fast_hdf-0.1.0.tar.gz | 1.8 MB | Without provenance | Details |
Built distributions (wheels)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| ras_commander_fast_hdf-0.1.0-cp310-abi3-win_amd64.whl | CPython 3.10 | abi3 | Windows x86-64 | Details |
| ras_commander_fast_hdf-0.1.0-cp310-abi3-manylinux_2_28_x86_64.whl | CPython 3.10 | abi3 | Linux glibc 2.28+ x86-64 | Details |
| ras_commander_fast_hdf-0.1.0-cp310-abi3-macosx_11_0_arm64.whl | CPython 3.10 | abi3 | macOS 11.0+ ARM64 | Details |
Total release size: 21.8 MB
Release files / ras_commander_fast_hdf-0.1.0.tar.gz
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Release files / ras_commander_fast_hdf-0.1.0-cp310-abi3-win_amd64.whl
| Download URL | ras_commander_fast_hdf-0.1.0-cp310-abi3-win_amd64.whl |
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| Tags | CPython 3.10 Windows x86-64 abi3 |
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Release files / ras_commander_fast_hdf-0.1.0-cp310-abi3-manylinux_2_28_x86_64.whl
| Download URL | ras_commander_fast_hdf-0.1.0-cp310-abi3-manylinux_2_28_x86_64.whl |
|---|---|
| Size | 6.7 MB |
| Tags | CPython 3.10 Linux glibc 2.28+ x86-64 abi3 |
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Release files / ras_commander_fast_hdf-0.1.0-cp310-abi3-macosx_11_0_arm64.whl
| Download URL | ras_commander_fast_hdf-0.1.0-cp310-abi3-macosx_11_0_arm64.whl |
|---|---|
| Size | 6.5 MB |
| Tags | CPython 3.10 abi3 macOS 11.0+ ARM64 |
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