Struct ClassicFile 

pub struct ClassicFile { /* private fields */ }

An opened classic-format NetCDF file (CDF-1, CDF-2, or CDF-5).

Implementations

impl ClassicFile

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

Read a variable’s data as an ndarray of the specified type.

The type parameter T must match the variable’s NetCDF type. For example, use f32 for NC_FLOAT variables and f64 for NC_DOUBLE variables.

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

Read a variable’s data with automatic type promotion to f64.

This reads any numeric variable and converts all values to f64, which is convenient for analysis but may lose precision for i64/u64.

pub fn read_variable_as_string(&self, name: &str) -> Result<String>

Read a char variable as a String (or Vec for multi-dimensional).

pub fn read_variable_as_strings(&self, name: &str) -> Result<Vec<String>>

Read a char variable as a flat vector of strings.

For 2-D and higher char arrays, the last dimension is interpreted as the string length and the leading dimensions are flattened.

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

Read a slice (hyperslab) of a variable.

Classic variables are read directly from the on-disk byte ranges for arbitrary selections.

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

Read a slice with automatic type promotion to f64.

impl ClassicFile

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

Open a classic NetCDF file from disk using memory-mapping.

pub fn from_bytes(bytes: &[u8], format: NcFormat) -> Result<Self>

Open a classic NetCDF file from in-memory bytes.

pub fn from_mmap(mmap: Mmap, format: NcFormat) -> Result<Self>

Open a classic NetCDF file from an existing memory map (avoids double mmap).

pub fn format(&self) -> NcFormat

The file format (Classic, Offset64, or Cdf5).

pub fn root_group(&self) -> &NcGroup

The root group containing all dimensions, variables, and global attributes.

pub fn numrecs(&self) -> u64

Number of records in the unlimited dimension.