Struct EquatorialTemplate 

pub struct EquatorialTemplate {

    pub shape: Grib2Table3_2,
    pub radius_scale_factor: u8,
    pub radius_scale_value: u32,
    pub major_axis_scale_factor: u8,
    pub major_axis_scale_value: u32,
    pub minor_axis_scale_factor: u8,
    pub minor_axis_scale_value: u32,
    pub nx: u32,
    pub ny: u32,
    pub basic_angle: f64,
    pub subdivisions: f64,
    pub lat1: f64,
    pub lon1: f64,
    pub resolution: Grib2Table3_3,
    pub lat2: f64,
    pub lon2: f64,
    pub dx: f64,
    pub dy: f64,
    pub scan_mode: Grib2Table3_4,
    pub grid_units: Grib2GridUnits,
}

GRIB2 - GRID DEFINITION TEMPLATE 3.0

Latitude/Longitude (or equidistant cylindrical, or Plate Carree)

Links

• Read more…

Notes

• Basic angle of the initial production domain and subdivisions of this basic angle are provided to manage cases where the recommended unit of 10-6 degrees is not applicable to describe the extreme longitudes and latitudes, and direction increments. For these last six descriptors, the unit is equal to the ratio of the basic angle and the subdivisions number. For ordinary cases, zero and missing values should be coded, equivalent to respective values of 1 and 106 (10-6 degrees unit).

• For data on a quasi-regular grid, in which all the rows or columns do not necessarily have the same number of grid points either Ni (octets 31-34) of Nj (octets 35-38) and the corresponding Di (octets 64-67) or Dj (octets 68-71) shall be coded with all bits set to 1 (missing). The actual number of points along each parallel or meridian shall be coded in the octets immediately following the grid definition template (octets [xx+1]-nn), as described in the description of the grid definition section.

• A quasi-regular grid is only defined for appropriate grid scanning modes. Either rows or columns, but not both simultaneously, may have variable numbers of points or variable spacing. The first point in each row (column) shall be positioned at the meridian (parallel) indicted by octets 47-54. The grid points shall be evenly spaced in latitude (longitude).

A scale value of radius of spherical Earth, or major axis of oblate spheroid Earth is delivered from applying appropriate scale factor to the value expressed in meters.

• It is recommended to use unsigned direction increments.

• In most cases, multiplying Ni (octets 31-34) by Nj (octets 35-38) yields the total number of points in the grid. However, this may not be true if bit 8 of the scanning mode flags (octet 72) is set to 1.

Fields

shape: Grib2Table3_2

Shape of Earth Table 3.2

radius_scale_factor: u8

Scale Factor of radius of spherical Earth

radius_scale_value: u32

Scale value of radius of spherical Earth

major_axis_scale_factor: u8

Scale factor of major axis of oblate spheroid Earth

major_axis_scale_value: u32

Scale value of major axis of oblate spheroid Earth

minor_axis_scale_factor: u8

Scale factor of minor axis of oblate spheroid Earth

minor_axis_scale_value: u32

Scale value of minor axis of oblate spheroid Earth

nx: u32

Number of points along a parallel (W-E)

ny: u32

Number of points along a meridian (N-S)

basic_angle: f64

Basic angle of the initial production domain

subdivisions: f64

Subdivisions of basic angle used to define extreme longitudes and latitudes, and direction increments

lat1: f64

Latitude of first grid point

lon1: f64

Longitude of first grid point

resolution: Grib2Table3_3

Resolution and component flags Table 3.3

lat2: f64

Latitude of last grid point

lon2: f64

Longitude of last grid point

dx: f64

i direction increment

dy: f64

j direction increment

scan_mode: Grib2Table3_4

Scanning mode Table 3.4

grid_units: Grib2GridUnits

Grid Units

Implementations

impl EquatorialTemplate

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

Create a new instance of EquatorialTemplate

Parameters

• section: byte block for template 3.0

Returns

The parsed template

pub fn build_grid(&mut self) -> VectorMultiPoint

Convert this section into grid data

Trait Implementations

impl Clone for EquatorialTemplate

fn clone(&self) -> EquatorialTemplate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EquatorialTemplate

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

Formats the value using the given formatter.

impl PartialEq for EquatorialTemplate

fn eq(&self, other: &EquatorialTemplate) -> 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 EquatorialTemplate