osobhandClaude Opus 5.5
3100f0143b
- docs/README.md links the improvement logs and June plans where the refresh archived them (docs/archive/). - clawhdf5-py README: 'r+' creates and replaces attributes (compact or dense); only deleting them is unsupported. - scripts/run-benchmarks.sh benchmarked the pre-rename rustyhdf5-format and overwrote BENCHMARKS.md; nothing referenced it. Removed. - Cargo.toml descriptions no longer name rustyhdf5/edgehdf5; clawhdf5-gpu says it is not HDF5 I/O. - benchmarks/cross_platform.sh pointed at a ROADMAP section that no longer exists. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
clawhdf5-netcdf4
Read NetCDF-4 files in pure Rust. NetCDF-4 files are HDF5 files with
conventions for dimensions, coordinate variables and attributes; this crate
reads them through the clawhdf5 facade, with no
libnetcdf or libhdf5. Read-only: NetCDF-3 (classic) files are not HDF5 and
are not supported.
Not on crates.io yet; depend on it from git:
[dependencies]
clawhdf5-netcdf4 = { git = "https://git.redclaw.dev/quantumclaw/clawhdf5" }
Usage
use clawhdf5_netcdf4::NetCDF4File;
let nc = NetCDF4File::open("climate.nc")?;
for dim in nc.dimensions()? {
println!("{}: {} (unlimited = {})", dim.name, dim.size, dim.is_unlimited);
}
let mut temp = nc.variable("temperature")?;
let dims: Vec<&str> = temp.dimensions().iter().map(|d| d.name.as_str()).collect();
println!("{:?} over {:?}", temp.shape()?, dims);
let cf = temp.cf_attributes()?;
println!("units: {:?}", cf.units);
// scale_factor/add_offset applied; _FillValue and missing_value become NaN
let values: Vec<f64> = temp.read_f64()?;
# Ok::<(), clawhdf5_netcdf4::Error>(())
API
| Item | What |
|---|---|
NetCDF4File |
open, from_bytes, dimensions, variables, variable, global_attrs, group, group_names, nc_properties, and hdf5_file for the underlying clawhdf5::File |
NetCDF4Group |
the same for a sub-group (dimensions, variables, attrs, nested group) |
Variable |
name, shape, dimensions, nc_type, is_coordinate, attrs, cf_attributes; read_f64 (CF scale/offset and fill applied), read_raw_f32/_f64/_i32/_i64/_u64, read_string, read_raw |
Dimension |
name, size, is_unlimited |
CfAttributes |
CF convention attributes: units, long_name, standard_name, fill_value (_FillValue), missing_value, scale_factor, add_offset, valid_range, calendar, axis |
NcType |
the NetCDF type of a variable |
No cargo features. Tests compare against files written by netCDF4-python
(tests/interop_tests.rs; the CI job requires them with
CLAWHDF5_REQUIRE_INTEROP=1). What the HDF5 reader underneath cannot
read is listed in docs/known-issues.md.
License
MIT