Struct Nc4File 

pub struct Nc4File { /* private fields */ }

An opened NetCDF-4 file (backed by HDF5).

Implementations

impl Nc4File

pub fn open(path: &Path) -> Result<Self>

Open a NetCDF-4 file from disk.

pub fn from_bytes(data: &[u8]) -> Result<Self>

Open a NetCDF-4 file from in-memory bytes.

pub fn root_group(&self) -> &NcGroup

The root group.

pub fn is_classic_model(&self) -> bool

Check if this file uses the classic data model (_nc3_strict).

This checks the raw HDF5 root group attributes (before the internal attribute filter removes _nc3_strict).

pub fn read_variable<T: H5Type>(&self, path: &str) -> Result<ArrayD<T>>

Read a variable’s data as a typed array.

Looks up the variable by path relative to the root group, then opens the matching HDF5 dataset and reads the data.

pub fn read_variable_parallel<T: H5Type>(&self, path: &str) -> Result<ArrayD<T>>

pub fn read_variable_in_pool<T: H5Type>( &self, path: &str, pool: &ThreadPool, ) -> Result<ArrayD<T>>

impl Nc4File

pub fn read_variable_as_f64(&self, path: &str) -> Result<ArrayD<f64>>

Read a variable with automatic type promotion to f64.

Reads in the native HDF5 type and promotes to f64 via mapv.

pub fn read_variable_slice_as_f64( &self, path: &str, selection: &NcSliceInfo, ) -> Result<ArrayD<f64>>

Read a slice of a variable with automatic type promotion to f64.

pub fn read_variable_slice<T: H5Type>( &self, path: &str, selection: &NcSliceInfo, ) -> Result<ArrayD<T>>

Read a typed slice of a variable (NC4 delegation).

pub fn read_variable_slice_parallel<T: H5Type>( &self, path: &str, selection: &NcSliceInfo, ) -> Result<ArrayD<T>>

Read a typed slice of a variable using chunk-level parallelism.

Chunked datasets decompress overlapping chunks in parallel via Rayon. Non-chunked layouts fall back to read_variable_slice.