Matrices describing affine transformation of the plane.
npm i @sakitam-gis/affine -S
import Affine from '@sakitam-gis/affine'The 3x3 augmented affine transformation matrix for transformations in two dimensions is illustrated below.
| x | | a b c | | x |
| y | = | d e f | | y |
| 1 | | 0 0 1 | | 1 |Matrices can be created by passing the values a, b, c, d, e, f to the
Affine constructor or by using its identity(),
translation(), scale() class methods.
raster extent: west, south, east, north raster size: width, height
const width = 256; // tile width
const height = 256; // tile height
const t = Affine.translation(west, north);
const s = Affine.scale((east - west) / width, (south - north) / height);
const geoTransform = t.multiply(s).toArray();