Struct Grib2Template53 

pub struct Grib2Template53 {

    pub reference_value: f32,
    pub binary_scale_factor: i32,
    pub decimal_scale_factor: i32,
    pub number_of_bits: u8,
    pub original_type: Grib2Table5_1,
    pub group_splitting_method: Grib2Table5_4,
    pub missing_value_management: Grib2Table5_5,
    pub primary_missing_value_substitute: u32,
    pub secondary_missing_value_substitute: u32,
    pub number_of_groups: u32,
    pub reference_for_group_widths: u8,
    pub group_widths_bits: u8,
    pub reference_for_group_lengths: u32,
    pub group_length_factor: u8,
    pub true_length_of_last_group: u32,
    pub n_bits_group_length: u8,
    pub order_of_spatial_difference: Grib2Table5_6,
    pub extra_descriptor_octets: u8,
}

Data Representation Template 5.3 – Complex packing and spatial differencing.

Reads and parses the metadata fields defined by GRIB2 Template 5.3. For most templates, details of the packing process are described in Regulation 92.9.4.

See also:

• GRIB2 Template 5.3 documentation
• Data template 7.3 and associated notes
• Spatial differencing (Regulation 92.9.4).

Fields

reference_value: f32

Reference value (R) (IEEE 32-bit floating-point). Octets 12–15 in the GRIB2 documentation.

binary_scale_factor: i32

Binary scale factor (E). Octets 16–17.

decimal_scale_factor: i32

Decimal scale factor (D). Octets 18–19.

number_of_bits: u8

Number of bits per packed value for simple packing, or per group reference for complex packing. Octet 20 in the documentation.

original_type: Grib2Table5_1

Type of original field values. See Code Table 5.1. Octet 21.

group_splitting_method: Grib2Table5_4

Group splitting method used. See Code Table 5.4. Octet 22.

missing_value_management: Grib2Table5_5

Missing value management. See Code Table 5.5. Octet 23.

primary_missing_value_substitute: u32

Primary missing value substitute. Octets 24–27.

secondary_missing_value_substitute: u32

Secondary missing value substitute. Octets 28–31.

number_of_groups: u32

Number of groups of data values (NG). Octets 32–35.

reference_for_group_widths: u8

Reference for group widths. Octet 36. The group width is the number of bits used for every value in a group.

group_widths_bits: u8

Number of bits used for the group widths (after subtracting the reference value). Octet 37.

reference_for_group_lengths: u32

Reference for group lengths. Octets 38–41. The group length (L) is the number of values in a group.

group_length_factor: u8

Length increment for group lengths. Octet 42. Used in the formula: Lₙ = ref + Kₙ × len_inc.

true_length_of_last_group: u32

True length of the last group. Octets 43–46. A special-case group length if the sequence doesn’t fit the formula.

n_bits_group_length: u8

Number of bits used for scaled group lengths (after subtracting ref and dividing by the length increment). Octet 47.

order_of_spatial_difference: Grib2Table5_6

Order of spatial difference. See Code Table 5.6. Octet 48.

extra_descriptor_octets: u8

Number of extra descriptor octets needed for spatial differencing (octets 6–ww in data template 7.3). Octet 49.

Implementations

impl Grib2Template53

pub fn new<T: Reader>(section: &T) -> Self

Create a new instance of Grib2Template53

Parameters

• section: Binary reader providing access to the section data

Returns

Object containing the fields of Template 5.3

Trait Implementations

impl Clone for Grib2Template53

fn clone(&self) -> Grib2Template53

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Grib2Template53

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

Formats the value using the given formatter.

impl PartialEq for Grib2Template53

fn eq(&self, other: &Grib2Template53) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Grib2Template53