Struct GeoTransform

pub struct GeoTransform {
    pub gt0: f64,
    pub gt1: f64,
    pub gt2: f64,
    pub gt3: f64,
    pub gt4: f64,
    pub gt5: f64,
}

A geotransform is an affine transformation from the image coordinate space (row, column), also known as (pixel, line) to the georeferenced coordinate space (projected or geographic coordinates).

A geotransform consists in a set of 6 coefficients:

GT(0) x-coordinate of the upper-left corner of the upper-left pixel. GT(1) w-e pixel resolution / pixel width. GT(2) row rotation (typically zero). GT(3) y-coordinate of the upper-left corner of the upper-left pixel. GT(4) column rotation (typically zero). GT(5) n-s pixel resolution / pixel height (negative value for a north-up image).

Fields

gt0: f64

x-coordinate of the upper-left corner of the upper-left pixel.

gt1: f64

w-e pixel resolution / pixel width.

gt2: f64

row rotation (typically zero).

gt3: f64

y-coordinate of the upper-left corner of the upper-left pixel.

gt4: f64

column rotation (typically zero).

gt5: f64

n-s pixel resolution / pixel height (negative value for a north-up image).

Implementations

impl GeoTransform

pub fn new(gt0: f64, gt1: f64, gt2: f64, gt3: f64, gt4: f64, gt5: f64) -> Self

Create a new GeoTransform with given coefficients.

pub fn optzoom(&self) -> u8

Compute the optimal zoom level for a geo-transform.

Trait Implementations

impl From<(f64, f64, f64, f64, f64, f64)> for GeoTransform

fn from(gt: (f64, f64, f64, f64, f64, f64)) -> Self

Converts to this type from the input type.