Struct Nc4File 

pub struct Nc4File {
    pub root: Nc4Group,
    pub global_attributes: Vec<(String, String)>,
    pub dimensions: Vec<(String, Option<usize>)>,
    pub unlimited_size: usize,
}

A NetCDF-4 (HDF5-based) in-memory dataset with group support.

Fields

root: Nc4Group

Root group (equivalent to “/” in HDF5).

global_attributes: Vec<(String, String)>

Global (file-level) attributes.

dimensions: Vec<(String, Option<usize>)>

All dimensions (name → size, None = unlimited).

unlimited_size: usize

Current size of the unlimited dimension (number of records written).

Implementations

impl Nc4File

pub fn new() -> Self

Create a new empty NetCDF-4 file.

pub fn add_dimension(&mut self, name: &str, size: usize)

Add a fixed dimension.

pub fn add_unlimited_dimension(&mut self, name: &str)

Add an unlimited dimension.

pub fn extend_unlimited(&mut self)

Extend the unlimited dimension by one record.

pub fn add_global_attribute(&mut self, key: &str, value: &str)

Add a global attribute.

pub fn get_global_attribute(&self, key: &str) -> Option<&str>

Get a global attribute.

pub fn get_dimension_size(&self, name: &str) -> Option<usize>

Get a dimension size.

pub fn is_unlimited(&self, name: &str) -> bool

Whether a dimension is unlimited.

pub fn add_variable(&mut self, var: Nc4Variable)

Add a variable to the root group.

pub fn get_variable(&self, name: &str) -> Option<&Nc4Variable>

Get a variable from the root group.

pub fn add_group(&mut self, group: Nc4Group)

Add a named sub-group to the root.

pub fn get_group(&self, name: &str) -> Option<&Nc4Group>

Get a sub-group by name from the root.

pub fn total_variable_count(&self) -> usize

All variable count (all groups).

pub fn to_bytes(&self) -> Vec<u8>

Serialize to a simple CDL-based binary envelope.

Layout: OXNC4 magic (5 bytes) + payload length u32 LE + CDL-like text payload.

The CDL payload stores global attributes, dimensions, unlimited size, and root variable names as a simple key=value text block.

Trait Implementations

impl Clone for Nc4File

fn clone(&self) -> Nc4File

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Nc4File

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Nc4File

fn default() -> Self

Returns the “default value” for a type.